diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..70bb2a2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*~
+*.swp
+
diff --git a/doc/references.md b/doc/references.md
index bd64aaf..f604210 100644
--- a/doc/references.md
+++ b/doc/references.md
@@ -1,12 +1,20 @@
-## Noob Electronics Stuff
+## Electronics Stuff
-* [Resistor Color Codes (picture)]
+* [Resistor Color Codes]
(http://www.ladyada.net/wiki/lib/exe/fetch.php?hash=a2c6a9&w=501&h=785&media=http%3A%2F%2Fwww.ladyada.net%2Fimages%2Fmetertutorial%2Frescolorcode.jpg)
+ : image
* from [the Multimeter Tutorial]
(http://www.ladyada.net/learn/multimeter/resistance.html)
(on )
+* [Schematic Symbols]
+ (http://img.docstoccdn.com/thumb/orig/28066054.png)
+ : image
+
+* [Vcc, Vdd, Vss, etc.]
+ (http://encyclobeamia.solarbotics.net/articles/vxx.html)
+
* [Very Basic Circuits]
(http://www.seattlerobotics.org/encoder/mar97/basics.html)
: column by Kevin Ross for Encoder
@@ -23,8 +31,21 @@
-> [powering LEDs]
(http://wolfstone.halloweenhost.com/Lighting/litlpo_PoweringLEDs.html)
+* [All About Circuits : Reference]
+ (http://www.allaboutcircuits.com/vol_5/index.html)
-## Noob C Stuff
+* [Effects of Varying I2C Pull-Up Resistors]
+ (http://dsscircuits.com/articles/effects-of-varying-i2c-pull-up-resistors.html) : article by Wayne Truchsess
+
+
+## C Stuff
+
+* [comp.lang.c Frequently Asked Questions]
+ (http://c-faq.com/index.html)
+
+* [The C Preprocessor]
+ (http://gcc.gnu.org/onlinedocs/gcc-2.95.3/cpp_1.html#SEC1)
+ (on )
* [C Library Reference]
(http://www.cplusplus.com/reference/)
@@ -38,6 +59,9 @@
(http://www.cprogramming.com/tutorial/bitwise_operators.html)
(on )
+* [AVR Tutorials - \[TUT\] \[C\] Bit manipulation (AKA "Programming 101")]
+ (http://www.avrfreaks.net/index.php?name=PNphpBB2&file=printview&t=37871&start=0)
+
* [In C++ is "const" after type ID acceptable?]
(http://stackoverflow.com/questions/988069/in-c-is-const-after-type-id-acceptable)
(on )
@@ -46,14 +70,27 @@
(http://www.ibiblio.org/pub/languages/fortran/append-c.html)
(on )
+* [how to use array of function pointers?]
+ (http://stackoverflow.com/questions/252748/how-to-use-array-of-function-pointers)
+ (on )
-## Noob Other Stuff
+* [The Function Pointer Tutorials]
+ (http://www.newty.de/fpt/index.html)
-* [Markdown: Syntax]
- (http://daringfireball.net/projects/markdown/syntax)
+* [C preprocessor and concatenation]
+ (http://stackoverflow.com/questions/1489932/c-preprocessor-and-concatenation)
+ (on )
+* [The New C: Inline Functions]
+ (http://drdobbs.com/184401540)
+ by Randy Meyers
+ (on )
-## AVR C stuff
+### For the AVR
+
+* [AVR Newbie guide]
+ (http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=70673)
+ by stu_san (on )
* [AVR Libc Library Reference]
(http://www.nongnu.org/avr-libc/user-manual/modules.html)
@@ -62,16 +99,46 @@
(http://svn.savannah.nongnu.org/viewvc/trunk/avr-libc/include/avr/iom32u4.h?revision=2288&root=avr-libc&view=markup)
: list of registers and associated bit numbers for ATmega32U4
+* [A Brief Tutorial on Programming the AVR without Arduino]
+ (https://www.mainframe.cx/~ckuethe/avr-c-tutorial/)
+ by Chris Kuethe
-## Articles / Tutorials
+
+## Protocol Stuff
+
+### I²C
* [Arduino I²C Expansion IO]
(http://www.neufeld.newton.ks.us/electronics/?p=241)
(from [Keith's Electronics Blog]
(http://www.neufeld.newton.ks.us/electronics/))
+* [Arduino Playground :: Wire Library, Explored]
+ (http://arduino.cc/playground/Main/WireLibraryDetailedReference)
-## Other Firmware / Code
+### USB
+
+* About Keyboard [Scan Codes]
+ (http://geekhack.org/showwiki.php?title=Scan+Codes)
+ (on )
+
+* [USB 2.0 Specification]
+ (http://www.usb.org/developers/docs/usb_20_101111.zip)
+ : zip (from )
+
+* [HID Device Class Definition]
+ (http://www.usb.org/developers/devclass_docs/HID1_11.pdf)
+ : pdf (from )
+ * HID = Human Interface Device
+
+* [HID Usage Tables]
+ (http://www.usb.org/developers/devclass_docs/Hut1_12v2.pdf)
+ : pdf (from )
+
+
+## Other People's Code
+
+### Keyboard Firmware
* zip: [Phantom Firmware from PrinsValium]
(http://geekhack.org/attachment.php?attachmentid=38982&d=1327895092)
@@ -80,13 +147,22 @@
(http://geekhack.org/showwiki.php?title=Island:26742)
article (on )
+* github: [tmk / tmk_keyboard]
+ (https://github.com/tmk/tmk_keyboard)
-* github: [Pyrolistical / tmk_keyboard]
- (https://github.com/Pyrolistical/tmk_keyboard/tree/master/fourway)
+ * forked by [Pyrolistical / tmk_keyboard]
+ (https://github.com/Pyrolistical/tmk_keyboard/tree/master/fourway)
- * mentioned in the [KeyPoard]
- (http://geekhack.org/showwiki.php?title=Island:26845)
- article (on )
+ * mentioned in the [KeyPoard]
+ (http://geekhack.org/showwiki.php?title=Island:26845)
+ article on
+
+ * forked by [riffautae / tmk_keyboard]
+ (https://github.com/riffautae/tmk_keyboard)
+
+ * mentioned on the [Teensy Keyboard Firmware Discussion]
+ (http://geekhack.org/showthread.php?26730-Teensy-Keyboard-Firmware-Discussion/page2)
+ thread on
* github: [humblehacker / keyboard]
(https://github.com/humblehacker/keyboard)
@@ -100,8 +176,26 @@
* mentioned on [the designer's blog]
(http://humblehacker.com/blog/)
+### TWI Libraries
+
* github: [TWI library in C]
(https://github.com/arduino/Arduino/tree/master/libraries/Wire/utility)
+ : (arduino / Arduino / libraries / Wire / utility)
+
+* zip: [i2cmaster]
+ (http://homepage.hispeed.ch/peterfleury/i2cmaster.zip)
+ (by Peter Fleury, on [his homepage]
+ (http://homepage.hispeed.ch/peterfleury/))
+
+* forum: [Interfacing MCP23018 io expander via Arduino]
+ (http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1282150189)
+ : contains a quick MCP23017 library in C++
+
+* github: [maniacbug / Arduino / libraries / MCP23018]
+ (https://github.com/maniacbug/Arduino/tree/master/libraries/MCP23018)
+ : library in C++
+
+### USB
* zip: [PJRC: usb_keyboard]
(http://pjrc.com/teensy/usb_keyboard.zip)
@@ -109,6 +203,8 @@
* mentioned on [the PJRC website]
(http://pjrc.com/teensy/usb_keyboard.html)
+### Miscellaneous
+
* zip: [PJRC: blinky]
(http://pjrc.com/teensy/blinky.zip)
@@ -116,7 +212,7 @@
(http://pjrc.com/teensy/gcc.html)
-## Chip Documentation
+## Hardware Documentation
* [Microchip: Analog & Interface Product Selector Guide]
(http://ww1.microchip.com/downloads/en/DeviceDoc/21060z.pdf)
@@ -160,3 +256,53 @@
* from [the PJRC website]
(http://pjrc.com/teensy/datasheets.html)
+* [Cherry MX Series Keyswitches : Specifications]
+ (http://www.cherrycorp.com/english/switches/key/mx.htm)
+
+
+## Miscellaneous
+
+### Documentation and Design Tools
+
+* [Markdown: Syntax]
+ (http://daringfireball.net/projects/markdown/syntax)
+
+* [KiCAD Tutorial]
+ (http://teholabs.com/knowledge/kicad.html)
+ (on )
+
+ * mentioned on the [circuit/block-diagram drawing]
+ (http://stackoverflow.com/questions/6422603/circuit-block-diagram-drawing)
+ question (on )
+
+* [Ti_k_Z and PGF]
+ (http://www.texample.net/tikz/)
+ : a TeX graphics package
+
+ * mentioned on the [circuit/block-diagram drawing]
+ (http://stackoverflow.com/questions/6422603/circuit-block-diagram-drawing)
+ question (on )
+
+ * [Documentation (for version 2010-09-28)]
+ (http://www.texample.net/media/pgf/builds/pgfmanualCVS2010-09-28.pdf)
+ : pdf
+
+ * [Example: Block diagram line junctions]
+ (http://www.texample.net/tikz/examples/line-junctions/)
+
+* [Inkscape : Connector tool tutorial]
+ (http://wiki.inkscape.org/wiki/index.php/UsingTheConnectorTool)
+
+### Typical Keyboard Information
+
+* [Keyboard Scan Rates]
+ (http://geekhack.org/showwiki.php?title=Keyboard+scan+rates)
+ list (on )
+
+
+-------------------------------------------------------------------------------
+
+Copyright © 2012 Ben Blazak
+Released under The MIT License (MIT) (see "license.md")
+Project located at
+
diff --git a/readme.md b/readme.md
index 42d2190..e2398a9 100644
--- a/readme.md
+++ b/readme.md
@@ -1,4 +1,54 @@
-# [ergodox-firmware][1]: Firmware for the [ergoDOX keyboard][2]
-[1]: https://github.com/benblazak/ergodox-firmware
-[2]: http://geekhack.org/showthread.php?22780-Interest-Check-Custom-split-ergo-keyboard
+# [ergodox-firmware][]: Firmware for the [ergoDOX keyboard][]
+
+[ergodox-firmware]: https://github.com/benblazak/ergodox-firmware
+[ergodox keyboard]: http://geekhack.org/showthread.php?22780-Interest-Check-Custom-split-ergo-keyboard
+
+
+This project is definitely in beta, but I'll do my best to keep the 'master'
+branch working. Please see the source (and especially the accompanying '*.md'
+files) for documentation.
+
+
+## Notes
+
+### (2012-04-11)
+As of now, it looks like we have a working 6-KRO keyboard firmware for a Teensy
+2.0 with a MCP23018 I/O expander. It's scanning at ~167 Hz, most of which is
+spent communicating over I²C. This should be fast enough, I think.
+Slight improvements might be possible (without finding a microprocessor capable
+of > 400 kHz I²C or using SPI, that is, which I imagine would speed things
+up a lot - but it'd also be much less convenient). I'll attempt them if I see
+the need.
+
+Also, layers are implemented, but untested, as no keymaps are written to use
+them yet. Implementing on-keyboard hardware remapping seems like it'd be very
+possible too, but I'd need to try it (and learn how to programmatically store
+stuff in program space) to see if it'd work; and I'm not sure of a good way to
+do the interface, since different people will likely have different keycap
+layouts on the ergoDOX.
+
+Getting to N-KRO is a goal, but I honestly have no idea whether it'll be
+accomplished. Ideally, I'd like a variable-KRO, where the keyboard is 6-KRO
+till you press the 7th key (so if you're worried about compatibility, just
+don't press more than 6 keys at a time). From what I've read, it might be
+possible, but I just finished everything else (so I'm slightly tired), and the
+USB spec is scary.
+
+Discussions about the project as a whole are going on at the forum page (linked
+in the title) so if you have any imput (or want to participate in the group
+buy!), please stop by. :) .
+
+
+## Dependencies (for building from source)
+
+* See the PJRC [Getting Started] (http://pjrc.com/teensy/first_use.html) page
+ for instructions on how to set up an AVR programming environment. This
+ project uses C (not Arduino).
+
+
+-------------------------------------------------------------------------------
+
+Copyright © 2012 Ben Blazak
+Released under The MIT License (MIT) (see "license.md")
+Project located at
diff --git a/src/key-functions.c b/src/key-functions.c
new file mode 100644
index 0000000..ff5112b
--- /dev/null
+++ b/src/key-functions.c
@@ -0,0 +1,96 @@
+/* ----------------------------------------------------------------------------
+ * key functions: code
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include "lib-other/pjrc/usb_keyboard/usb_keyboard.h"
+
+#include "lib/data-types.h"
+#include "lib/usb/keyboard-usage-page.h"
+
+#include "keyboard.h"
+
+
+// ----------------------------------------------------------------------------
+
+#if 0 // not being used right now
+static uint8_t _inc_current_layer(uint8_t * current_layer) {
+ if (*current_layer < (KB_LAYERS-1))
+ (*current_layer)++;
+ else
+ return 1; // error: can't increase
+
+ return 0; // success
+}
+
+static uint8_t _dec_current_layer(uint8_t * current_layer) {
+ if (*current_layer > 0)
+ (*current_layer)--;
+ else
+ return 1; // error: can't decrease
+
+ return 0; // success
+}
+#endif
+
+
+// ----------------------------------------------------------------------------
+
+void kbfun_press(
+ uint8_t * keycode, uint8_t * current_layer,
+ uint8_t * row, uint8_t * col ) {
+
+ for (uint8_t i=0; i<6; i++)
+ if (keyboard_keys[i] == 0) {
+ keyboard_keys[i] = *keycode;
+ break;
+ }
+}
+
+void kbfun_release(
+ uint8_t * keycode, uint8_t * current_layer,
+ uint8_t * row, uint8_t * col ) {
+
+ for (uint8_t i=0; i<6; i++)
+ if (keyboard_keys[i] == *keycode) {
+ keyboard_keys[i] = 0;
+ break;
+ }
+}
+
+void kbfun_mod_press(
+ uint8_t * keycode, uint8_t * current_layer,
+ uint8_t * row, uint8_t * col ) {
+
+ switch (*keycode) {
+ case KEY_LeftControl: keyboard_modifier_keys |= (1<<0); break;
+ case KEY_LeftShift: keyboard_modifier_keys |= (1<<1); break;
+ case KEY_LeftAlt: keyboard_modifier_keys |= (1<<2); break;
+ case KEY_LeftGUI: keyboard_modifier_keys |= (1<<3); break;
+ case KEY_RightControl: keyboard_modifier_keys |= (1<<4); break;
+ case KEY_RightShift: keyboard_modifier_keys |= (1<<5); break;
+ case KEY_RightAlt: keyboard_modifier_keys |= (1<<6); break;
+ case KEY_RightGUI: keyboard_modifier_keys |= (1<<7); break;
+ }
+}
+
+void kbfun_mod_release(
+ uint8_t * keycode, uint8_t * current_layer,
+ uint8_t * row, uint8_t * col ) {
+
+ switch (*keycode) {
+ case KEY_LeftControl: keyboard_modifier_keys &= ~(1<<0); break;
+ case KEY_LeftShift: keyboard_modifier_keys &= ~(1<<1); break;
+ case KEY_LeftAlt: keyboard_modifier_keys &= ~(1<<2); break;
+ case KEY_LeftGUI: keyboard_modifier_keys &= ~(1<<3); break;
+ case KEY_RightControl:keyboard_modifier_keys &= ~(1<<4); break;
+ case KEY_RightShift: keyboard_modifier_keys &= ~(1<<5); break;
+ case KEY_RightAlt: keyboard_modifier_keys &= ~(1<<6); break;
+ case KEY_RightGUI: keyboard_modifier_keys &= ~(1<<7); break;
+ }
+}
+
diff --git a/src/key-functions.h b/src/key-functions.h
new file mode 100644
index 0000000..887dfa6
--- /dev/null
+++ b/src/key-functions.h
@@ -0,0 +1,31 @@
+/* ----------------------------------------------------------------------------
+ * key functions: exports
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#ifndef KEY_FUNCTIONS_h
+ #define KEY_FUNCTIONS_h
+
+ #include "lib/data-types.h"
+
+ typedef void (*kbfun_funptr_t)(uint8_t*, uint8_t*, uint8_t*, uint8_t*);
+
+ void kbfun_press(
+ uint8_t * keycode, uint8_t * current_layer,
+ uint8_t * row, uint8_t * col );
+ void kbfun_release(
+ uint8_t * keycode, uint8_t * current_layer,
+ uint8_t * row, uint8_t * col );
+ void kbfun_mod_press(
+ uint8_t * keycode, uint8_t * current_layer,
+ uint8_t * row, uint8_t * col );
+ void kbfun_mod_release(
+ uint8_t * keycode, uint8_t * current_layer,
+ uint8_t * row, uint8_t * col );
+
+#endif
+
diff --git a/src/keyboard.h b/src/keyboard.h
new file mode 100644
index 0000000..6b0dd15
--- /dev/null
+++ b/src/keyboard.h
@@ -0,0 +1,12 @@
+/* ----------------------------------------------------------------------------
+ * keyboard specific exports
+ * use this file to include the keyboard you're compiling for
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include "keyboard/ergodox.h" // only supported keyboard right now
+
diff --git a/src/keyboard/ergodox.c b/src/keyboard/ergodox.c
new file mode 100644
index 0000000..12b5f32
--- /dev/null
+++ b/src/keyboard/ergodox.c
@@ -0,0 +1,43 @@
+/* ----------------------------------------------------------------------------
+ * ergoDOX specific code: tying it all together
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include "lib/data-types.h"
+
+#define KEYBOARD_INCLUDE_PRIVATE
+#include "ergodox/matrix.h"
+#include "ergodox/mcp23018.h"
+#include "ergodox/teensy-2-0.h"
+
+
+/* returns
+ * - success: 0
+ * - error: number of the function that failed
+ */
+uint8_t kb_init(void) {
+ if (teensy_init()) // must be first
+ return 1;
+ if (mcp23018_init()) // must be second
+ return 2;
+
+ return 0; // success
+}
+
+/* returns
+ * - success: 0
+ * - error: number of the function that failed
+ */
+uint8_t kb_update_matrix(bool matrix[KB_ROWS][KB_COLUMNS]) {
+ if (teensy_update_matrix(matrix))
+ return 1;
+ if (mcp23018_update_matrix(matrix))
+ return 2;
+
+ return 0; // success
+}
+
diff --git a/src/keyboard/ergodox.h b/src/keyboard/ergodox.h
new file mode 100644
index 0000000..13d096b
--- /dev/null
+++ b/src/keyboard/ergodox.h
@@ -0,0 +1,25 @@
+/* ----------------------------------------------------------------------------
+ * ergoDOX specific exports
+ * includes (for centralization) the public exports from all subfiles
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#ifndef ERGODOX_h
+ #define ERGODOX_h
+
+ #include "lib/data-types.h"
+
+ #include "ergodox/layout.h" // number of layers, layout
+ #include "ergodox/matrix.h" // kb dimensions, matrix status
+ #include "ergodox/mcp23018.h" // (nothing right now)
+ #include "ergodox/teensy-2-0.h" // LED controls
+
+ uint8_t kb_init(void);
+ uint8_t kb_update_matrix(bool matrix[KB_ROWS][KB_COLUMNS]);
+
+#endif
+
diff --git a/src/keyboard/ergodox/_circuit-diagram.svg b/src/keyboard/ergodox/_circuit-diagram.svg
new file mode 100644
index 0000000..3e09f78
--- /dev/null
+++ b/src/keyboard/ergodox/_circuit-diagram.svg
@@ -0,0 +1,3430 @@
+
+
+
+
diff --git a/src/keyboard/ergodox/layout.c b/src/keyboard/ergodox/layout.c
new file mode 100644
index 0000000..663de73
--- /dev/null
+++ b/src/keyboard/ergodox/layout.c
@@ -0,0 +1,94 @@
+/* ----------------------------------------------------------------------------
+ * ergoDOX layout specific code
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include "lib/data-types.h"
+#include "lib/usb/keyboard-usage-page.h"
+
+#include "key-functions.h"
+
+#include "matrix.h"
+#include "layout.h"
+
+
+// error check; everything below assumes these dimensions
+#if KB_LAYERS != 1 || KB_ROWS != 12 || KB_COLUMNS != 7
+ #error "Expecting different keyboard dimensions"
+#endif
+
+
+// TODO (before release): put more effort into this
+uint8_t kb_layout[KB_LAYERS][KB_ROWS][KB_COLUMNS] = {
+{ // layer 0: default
+ // right hand
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+/* 0 */ { 0, KEY_6_Caret, KEY_7_Ampersand, KEY_8_Asterisk, KEY_9_LeftParenthesis, KEY_0_RightParenthesis, KEY_Dash_Underscore }, /* 0 */
+/* 1 */ { 0, KEY_y_Y, KEY_u_U, KEY_i_I, KEY_o_O, KEY_p_P, KEY_LeftBracket_LeftBrace }, /* 1 */
+/* 2 */ { 0,/*unused*/ KEY_h_H, KEY_j_J, KEY_k_K, KEY_l_L, KEY_Semicolon_Colon, KEY_SingleQuote_DoubleQuote }, /* 2 */
+/* 3 */ { 0, KEY_n_N, KEY_m_M, KEY_Comma_LessThan, KEY_Period_GreaterThan, KEY_Slash_Question, KEY_RightShift }, /* 3 */
+/* 4 */ { 0,/*unused*/ 0,/*unused*/ KEY_UpArrow, KEY_DownArrow, KEY_Backslash_Pipe, KEY_RightBracket_RightBrace, 0 }, /* 4 */
+/* 5 */ { 0,/*unused*/ KEY_RightControl, KEY_RightAlt, KEY_PageUp, KEY_PageDown, KEY_ReturnEnter, KEY_Spacebar }, /* 5 */
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+ // left hand
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+/* 6 */ { KEY_Equal_Plus, KEY_1_Exclamation, KEY_2_At, KEY_3_Pound, KEY_4_Dollar, KEY_5_Percent, 0 }, /* 6 */
+/* 7 */ { KEY_Tab, KEY_q_Q, KEY_w_W, KEY_e_E, KEY_r_R, KEY_t_T, 0 }, /* 7 */
+/* 8 */ { KEY_CapsLock, KEY_a_A, KEY_s_S, KEY_d_D, KEY_f_F, KEY_g_G, 0/*unused*/ }, /* 8 */
+/* 9 */ { KEY_LeftShift, KEY_z_Z, KEY_x_X, KEY_c_C, KEY_v_V, KEY_b_B, 0 }, /* 9 */
+/* A */ { 0, KEY_GraveAccent_Tilde, KEY_Backslash_Pipe, KEY_LeftArrow, KEY_RightArrow, 0,/*unused*/ 0/*unused*/ }, /* A */
+/* B */ { KEY_DeleteBackspace, KEY_DeleteForward, KEY_End, KEY_Home, KEY_LeftAlt, KEY_LeftControl, 0/*unused*/ } /* B */
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+}
+};
+
+kbfun_funptr_t kb_layout_press[KB_LAYERS][KB_ROWS][KB_COLUMNS] = {
+{ // layer 0: default
+ // right hand
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+/* 0 */ { NULL, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press }, /* 0 */
+/* 1 */ { NULL, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press }, /* 1 */
+/* 2 */ { NULL,/*unused*/ &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press }, /* 2 */
+/* 3 */ { NULL, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_mod_press }, /* 3 */
+/* 4 */ { NULL,/*unused*/ NULL,/*unused*/ &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, NULL }, /* 4 */
+/* 5 */ { NULL,/*unused*/ &kbfun_mod_press, &kbfun_mod_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press }, /* 5 */
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+ // left hand
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+/* 6 */ { &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, NULL }, /* 6 */
+/* 7 */ { &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, NULL }, /* 7 */
+/* 8 */ { &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, NULL/*unused*/ }, /* 8 */
+/* 9 */ { &kbfun_mod_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, NULL }, /* 9 */
+/* A */ { NULL, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, NULL,/*unused*/ NULL/*unused*/ }, /* A */
+/* B */ { &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_press, &kbfun_mod_press, &kbfun_mod_press, NULL/*unused*/ } /* B */
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+}
+};
+
+kbfun_funptr_t kb_layout_release[KB_LAYERS][KB_ROWS][KB_COLUMNS] = {
+{ // layer 0: default
+ // right hand
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+/* 0 */ { NULL, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release }, /* 0 */
+/* 1 */ { NULL, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release }, /* 1 */
+/* 2 */ { NULL,/*unused*/ &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release }, /* 2 */
+/* 3 */ { NULL, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_mod_release }, /* 3 */
+/* 4 */ { NULL,/*unused*/ NULL,/*unused*/ &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, NULL }, /* 4 */
+/* 5 */ { NULL,/*unused*/ &kbfun_mod_release, &kbfun_mod_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release }, /* 5 */
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+ // left hand
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+/* 6 */ { &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, NULL }, /* 6 */
+/* 7 */ { &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, NULL }, /* 7 */
+/* 8 */ { &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, NULL/*unused*/ }, /* 8 */
+/* 9 */ { &kbfun_mod_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, NULL }, /* 9 */
+/* A */ { NULL, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, NULL,/*unused*/ NULL/*unused*/ }, /* A */
+/* B */ { &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_release, &kbfun_mod_release, &kbfun_mod_release, NULL/*unused*/ } /* B */
+ /* 0 -------------------------- 1 -------------------------- 2 -------------------------- 3 -------------------------- 4 -------------------------- 5 -------------------------- 6 -------------------------- */
+}
+};
+
diff --git a/src/keyboard/ergodox/layout.h b/src/keyboard/ergodox/layout.h
new file mode 100644
index 0000000..8b786f1
--- /dev/null
+++ b/src/keyboard/ergodox/layout.h
@@ -0,0 +1,28 @@
+/* ----------------------------------------------------------------------------
+ * ergoDOX layout specific exports
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+#ifndef LAYOUT_h
+ #define LAYOUT_h
+
+ #include "lib/data-types.h"
+
+ #include "key-functions.h"
+
+ #include "matrix.h"
+
+ #define KB_LAYERS 1 // must match what's defined in "layout.c"
+
+ extern uint8_t
+ kb_layout [KB_LAYERS][KB_ROWS][KB_COLUMNS];
+ extern kbfun_funptr_t
+ kb_layout_press [KB_LAYERS][KB_ROWS][KB_COLUMNS];
+ extern kbfun_funptr_t
+ kb_layout_release[KB_LAYERS][KB_ROWS][KB_COLUMNS];
+
+#endif
+
diff --git a/src/keyboard/ergodox/matrix.c b/src/keyboard/ergodox/matrix.c
new file mode 100644
index 0000000..3a1f9e7
--- /dev/null
+++ b/src/keyboard/ergodox/matrix.c
@@ -0,0 +1,20 @@
+/* ----------------------------------------------------------------------------
+ * ergoDOX: keyboard matrix specific code
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include "lib/data-types.h"
+
+#include "matrix.h"
+
+
+static bool _kb_is_pressed[KB_ROWS][KB_COLUMNS];
+static bool _kb_was_pressed[KB_ROWS][KB_COLUMNS];
+
+bool (*kb_is_pressed)[KB_ROWS][KB_COLUMNS] = &_kb_is_pressed;
+bool (*kb_was_pressed)[KB_ROWS][KB_COLUMNS] = &_kb_was_pressed;
+
diff --git a/src/keyboard/ergodox/matrix.h b/src/keyboard/ergodox/matrix.h
new file mode 100644
index 0000000..1ee9907
--- /dev/null
+++ b/src/keyboard/ergodox/matrix.h
@@ -0,0 +1,23 @@
+/* ----------------------------------------------------------------------------
+ * ergoDOX: keyboard matrix specific exports
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#ifndef MATRIX_h
+ #define MATRIX_h
+
+ #include "lib/data-types.h"
+
+ #define KB_ROWS 12 // must match real life
+ #define KB_COLUMNS 7 // must match real life
+
+ extern bool (*kb_is_pressed)[KB_ROWS][KB_COLUMNS];
+ extern bool (*kb_was_pressed)[KB_ROWS][KB_COLUMNS];
+
+
+#endif
+
diff --git a/src/keyboard/ergodox/matrix.md b/src/keyboard/ergodox/matrix.md
new file mode 100644
index 0000000..723e5f0
--- /dev/null
+++ b/src/keyboard/ergodox/matrix.md
@@ -0,0 +1,27 @@
+# Documentation : Keyboard Matrix
+
+## Matrix [row##column] assignments
+
+* row and column numbers are in hex
+* coordinates without brackets are unused
+* left and right hands are mostly the same except that `row += 6` for the left
+
+ ....... rows x columns = positions; assigned, unassigned .......
+ ....... per hand: 6 x 7 = 42; 38, 4 .......
+ ....... total: 12 x 7 = 84; 76, 8 .......
+ ----------------------------------------------------------------------------
+ [60][61][62][63][64][65][66] [00][01][02][03][04][05][06]
+ [70][71][72][73][74][75][76] [10][11][12][13][14][15][16]
+ [80][81][82][83][84][85] 86 20 [21][22][23][24][25][26]
+ [90][91][92][93][94][95][96] [30][31][32][33][34][35][36]
+ [A0][A1][A2][A3][A4] A5 A6 40 41 [42][43][44][45][46]
+ [B0] B6 50 [56]
+ [B1] [B5] [51] [55]
+ [B2][B3][B4] [52][53][54]
+
+-------------------------------------------------------------------------------
+
+Copyright © 2012 Ben Blazak
+Released under The MIT License (MIT) (see "license.md")
+Project located at
+
diff --git a/src/keyboard/ergodox/mcp23018.c b/src/keyboard/ergodox/mcp23018.c
new file mode 100644
index 0000000..67d30be
--- /dev/null
+++ b/src/keyboard/ergodox/mcp23018.c
@@ -0,0 +1,143 @@
+/* ----------------------------------------------------------------------------
+ * ergoDOX controller: MCP23018 specific code
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include
+
+#include "lib/data-types.h"
+#include "lib/teensy-2-0/twi.h" // `TWI_FREQ` defined in "teensy-2-0.c"
+
+#define KEYBOARD_INCLUDE_PRIVATE
+#include "matrix.h"
+#include "mcp23018.h"
+
+
+// register addresses (see "mcp23018.md")
+#define IODIRA 0x00 // i/o direction register
+#define IODIRB 0x01
+#define GPPUA 0x0C // GPIO pull-up resistor register
+#define GPPUB 0x0D
+#define GPIOA 0x12 // general purpose i/o port register (write modifies OLAT)
+#define GPIOB 0x13
+#define OLATA 0x14 // output latch register
+#define OLATB 0x15
+
+// TWI aliases
+#define TWI_ADDR_WRITE ( (MCP23018_TWI_ADDRESS<<1) | TW_WRITE )
+#define TWI_ADDR_READ ( (MCP23018_TWI_ADDRESS<<1) | TW_READ )
+
+
+/* returns:
+ * - success: 0
+ * - failure: twi status code
+ *
+ * notes:
+ * - `twi_stop()` must be called *exactly once* for each twi block, the way
+ * things are currently set up. this may change in the future.
+ */
+uint8_t mcp23018_init(void) {
+ uint8_t ret;
+
+ // set pin direction
+ // - unused : input : 1
+ // - rows : output : 0
+ // - columns : input : 1
+ twi_start();
+ ret = twi_send(TWI_ADDR_WRITE);
+ if (ret) goto out; // make sure we got an ACK
+ twi_send(IODIRA);
+ twi_send(0b11000000); // IODIRA
+ twi_send(0b11111111); // IODIRB
+ twi_stop();
+
+ // set pull-up
+ // - unused : on : 1
+ // - rows : off : 0
+ // - columns : on : 1
+ twi_start();
+ twi_send(TWI_ADDR_WRITE);
+ twi_send(GPPUA);
+ twi_send(0b11000000); // GPPUA
+ twi_send(0b11111111); // GPPUB
+ twi_stop();
+
+ // set logical value (doesn't matter on inputs)
+ // - unused : high (hi-Z) : 1
+ // - rows : high (hi-Z) : 1
+ // - columns : high (hi-Z) : 1
+ twi_start();
+ twi_send(TWI_ADDR_WRITE);
+ twi_send(OLATA);
+ twi_send(0b11111111); //OLATA
+ twi_send(0b11111111); //OLATB
+
+out:
+ twi_stop();
+ return ret;
+}
+
+/* returns:
+ * - success: 0
+ * - failure: twi status code
+ */
+#if KB_ROWS != 12 || KB_COLUMNS != 7
+ #error "Expecting different keyboard dimensions"
+#endif
+uint8_t mcp23018_update_matrix(bool matrix[KB_ROWS][KB_COLUMNS]) {
+ uint8_t ret, data;
+
+ // initialize things, just to make sure
+ // - it's not appreciably faster to skip this, and it takes care of the
+ // case when the i/o expander isn't plugged in during the first
+ // init()
+ ret = mcp23018_init();
+
+ // if there was an error
+ if (ret) {
+ // clear our part of the matrix
+ for (uint8_t row=0x6; row<=0xB; row++)
+ for (uint8_t col=0; col<=6; col++)
+ matrix[row][col] = 0;
+
+ return ret;
+ }
+
+ // update our part of the matrix
+ for (uint8_t row=0x6; row<=0xB; row++) {
+ // set active row low : 0
+ // set other rows high (hi-Z) : 1
+ twi_start();
+ twi_send(TWI_ADDR_WRITE);
+ twi_send(OLATA);
+ twi_send( 0b11111111 & ~(1<<(row-6)) );
+ twi_stop();
+
+ // read column data
+ twi_start();
+ twi_send(TWI_ADDR_WRITE);
+ twi_send(GPIOB);
+ twi_start();
+ twi_send(TWI_ADDR_READ);
+ twi_read(&data);
+ twi_stop();
+
+ // update matrix
+ for (uint8_t col=0; col<=6; col++)
+ matrix[row][col] = !( data & (1<
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#ifndef MCP23018_h
+ #define MCP23018_h
+
+ #include "lib/data-types.h"
+
+ #ifdef KEYBOARD_INCLUDE_PRIVATE
+
+ #define MCP23018_TWI_ADDRESS 0b0100000
+
+ uint8_t mcp23018_init(void);
+ uint8_t mcp23018_update_matrix(
+ bool matrix[KB_ROWS][KB_COLUMNS] );
+
+ #endif
+
+#endif
+
diff --git a/src/keyboard/ergodox/mcp23018.md b/src/keyboard/ergodox/mcp23018.md
new file mode 100644
index 0000000..7aa6db4
--- /dev/null
+++ b/src/keyboard/ergodox/mcp23018.md
@@ -0,0 +1,141 @@
+# Documentation : MCP23018
+
+## Pinout and Pin assignments
+
+* `+` indicates pin
+* `o` indicates unused pin
+* `-`s inserted between some of the pin functions for readability
+* `OC**` pins enclosed in parenthesis had lines over them in the pinout
+
+### MCP23018
+ Vss(GND) +01---.---28+ NC
+ NC +02 27+ GPA7
+ GPB0 +03 26+ GPA6
+ GPB1 +04 25+ GPA5
+ GPB2 +05 24+ GPA4
+ GPB3 +06 23+ GPA3
+ GPB4 +07 22+ GPA2
+ GPB5 +08 21+ GPA1
+ GPB6 +09 20+ GPA0
+ GPB7 +10 19+ INTA
+ Vdd(Vcc) +11 18+ INTB
+ SCL +12 17+ NC
+ SDA +13 16+ RESET
+ NC +14-------15+ ADDR
+
+### MCP32018 Pin Assignments
+
+ power_negative Vss(GND) +01---.---28o NC
+ NC o02 27o GPA7
+ column0 GPB0 +03 26o GPA6
+ column1 GPB1 +04 25+ GPA5 rowB
+ column2 GPB2 +05 24+ GPA4 rowA
+ column3 GPB3 +06 23+ GPA3 row9
+ column4 GPB4 +07 22+ GPA2 row8
+ column5 GPB5 +08 21+ GPA1 row7
+ column6 GPB6 +09 20+ GPA0 row6
+ GPB7 o10 19o INTA
+ power_positive Vdd(Vcc) +11 18o INTB
+ I2C SCL +12 17o NC
+ I2C SDA +13 16+ RESET (see note)
+ NC o14-------15+ ADDR (see note)
+
+* notes:
+ * ADDR (pin15): Set slave address to `0b0100000` by connecting to Vss(GND).
+ * The user-defined bits are the three least significant
+ * I2C addresses are 7 bits long (the last bit in the byte is used for
+ indicating read/write)
+ * RESET (pin16) must be externally biased. Since we're not going to trigger
+ it ourselves, we can tie it high.
+ * This is not noted in the I2C Pinout Description section of the MCP23018
+ datasheet, but it's true (empirically), and it is noted in the SPI Pinout
+ Description section, and in the MCP23017 datasheet.
+ * I'm not the first person who's failed to notice ;)
+ *
+ *
+
+## Notes about Registers
+
+ register address function (for all bits)
+ -------- ------- -----------------------
+ IODIRA 0x00 \ 1: set corresponding pin as input
+ IODIRB 0x01 / 0: set ................. as output
+ GPPUA 0x0C \ 1: set corresponding pin internal pull-up on
+ GPPUB 0x0D / 0: set .......................... pull-up off
+ GPIOA 0x12 \ read: returns the value on the port
+ GPIOB 0x13 / write: modifies the OLAT register
+ OLATA 0x14 \ read: returns the value of this register
+ OLATB 0x15 / write: modifies the output latches that control the
+ pins configured as output
+
+* IOCON register (see datasheet section 1.6, table 1-5, register 1-8)
+ * BANK: bit 7; read/write; default = 0
+ * 1: The registers associated with each port are separated into different
+ banks
+ * 0: The registers are in the same bank (addresses are sequential)
+ * SEQOP: bit 5; read/write; default = 0
+ * 1: Sequential operation disabled, address pointer does not increment
+ * 0: Sequential operation enabled, address pointer increments
+
+* notes:
+ * All addresses given for IOCON.BANK = 0, since that's the default value of
+ the bit, and that's what we'll be using.
+ * We want the row pins set as output high (hi-Z) without pull-ups initially,
+ and the column pins set as input with pull-ups. We'll cycle through
+ driving the row pins low and checking the column pins in the update
+ function.
+
+* abbreviations:
+ * IODIR = I/O Direction Register
+ * IOCON = I/O Control Register
+ * GPPU = GPIO Pull-Up Resistor Register
+ * GPIO = General Purpose I/O Port Register
+ * OLAT = Output Latch Register
+
+## I²C Device Protocol (see datasheet section 1.3, figure 1-1)
+
+ S : Start OP : Device opcode
+ SR : Restart ADDR : Device address
+ P : Stop Dout : Data out from MCP23018
+ W : Write Din : Data in to MCP23018
+ R : Read
+
+
+ S OP W ADDR ----> Din ... Din --> P
+ |
+ |--> SR OP R Dout ... Dout ---> P
+ |<--------------------------|
+ |
+ |--> SR OP W ADDR ... Din --> P
+ |
+ |--> P
+
+ S OP R ----> Dout ... Dout --> P
+ |
+ |--> SR OP R Dout ... Dout ---> P
+ |<--------------------------|
+ |
+ |--> SR OP W ADDR Din ... Din --> P
+ |
+ |--> P
+
+ Byte and Sequential Write
+ -------------------------
+ Byte : S OP W ADDR --> Din --> P
+ Sequential : S OP W ADDR --> Din ... Din --> P
+
+ Byte and Sequential Read
+ ------------------------
+ Byte : S OP W ADDR --> SR OP R Dout --> P
+ Sequential : S OP W ADDR --> SR OP R Dout ... Dout --> P
+
+* notes:
+ * We'll be using sequential mode (ICON.SEQOP = 0; default) (see datasheet
+ section 1.3.1).
+
+-------------------------------------------------------------------------------
+
+Copyright © 2012 Ben Blazak
+Released under The MIT License (MIT) (see "license.md")
+Project located at
+
diff --git a/src/keyboard/ergodox/teensy-2-0.c b/src/keyboard/ergodox/teensy-2-0.c
new file mode 100644
index 0000000..d692218
--- /dev/null
+++ b/src/keyboard/ergodox/teensy-2-0.c
@@ -0,0 +1,200 @@
+/* ----------------------------------------------------------------------------
+ * ergoDOX controller: Teensy 2.0 specific code
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include
+
+#include "lib/data-types.h"
+#define TWI_FREQ 400000
+#include "lib/teensy-2-0/twi.h"
+
+#define KEYBOARD_INCLUDE_PRIVATE
+#include "matrix.h"
+#include "teensy-2-0.h"
+
+
+// processor frequency (from )
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+#define CPU_16MHz 0x00
+#define CPU_8MHz 0x01
+#define CPU_4MHz 0x02
+#define CPU_2MHz 0x03
+#define CPU_1MHz 0x04
+#define CPU_500kHz 0x05
+#define CPU_250kHz 0x06
+#define CPU_125kHz 0x07
+#define CPU_62kHz 0x08
+
+
+/* pin macros
+ * - note: you can move the `UNUSED`, `ROW`, and `COLUMN` pins around, but be
+ * sure to keep the set of all the pins listed constant. other pins are not
+ * movable, and either are referenced explicitly or have macros defined for
+ * them elsewhere.
+ * - note: if you change pin assignments, please be sure to update
+ * "teensy-2-0.md".
+ */
+// --- helpers
+#define TEENSYPIN_WRITE(register, operation, pin) \
+ _TEENSYPIN_WRITE(register, operation, pin)
+#define _TEENSYPIN_WRITE(register, operation, pin_letter, pin_number) \
+ ((register##pin_letter) operation (1<<(pin_number)))
+
+#define TEENSYPIN_READ(pin) \
+ _TEENSYPIN_READ(pin)
+#define _TEENSYPIN_READ(pin_letter, pin_number) \
+ ((PIN##pin_letter) & (1<<(pin_number)))
+
+#define SET |=
+#define CLEAR &=~
+
+// --- unused
+#define UNUSED_0 B, 1 // SPI pin
+#define UNUSED_1 B, 2 // SPI pin
+#define UNUSED_2 B, 3 // SPI pin
+#define UNUSED_3 D, 4 // hard to use with breadboard (on the end)
+#define UNUSED_4 D, 5 // hard to use with breadboard (on the end)
+#define UNUSED_5 E, 6 // hard to use with breadboard (internal)
+
+// --- rows
+#define ROW_0 F, 0
+#define ROW_1 F, 1
+#define ROW_2 F, 4
+#define ROW_3 F, 5
+#define ROW_4 F, 6
+#define ROW_5 F, 7
+
+// --- columns
+#define COLUMN_0 B, 4
+#define COLUMN_1 C, 6
+#define COLUMN_2 C, 7
+#define COLUMN_3 D, 2
+#define COLUMN_4 D, 3
+#define COLUMN_5 D, 7
+#define COLUMN_6 B, 0
+
+
+/* returns
+ * - success: 0
+ */
+uint8_t teensy_init(void) {
+ CPU_PRESCALE(CPU_16MHz); // speed should match F_CPU in makefile
+
+ // onboard LED
+ DDRD &= ~(1<<6); // set D(6) as input
+ PORTD &= ~(1<<6); // set D(6) internal pull-up disabled
+
+ // keyboard LEDs (see "PWM on ports OC1(A|B|C)" in "teensy-2-0.md")
+ DDRB |= 0b11100000; // set B(7,6,5) as output
+ TCCR1A = 0b10101001; // set and configure fast PWM
+ TCCR1B = 0b00001001; // set and configure fast PWM
+
+ KB_LED1_SET_PERCENT(0.5); KB_LED1_OFF;
+ KB_LED2_SET_PERCENT(0.5); KB_LED2_OFF;
+ KB_LED3_SET_PERCENT(0.5); KB_LED3_OFF;
+
+ // I2C (TWI)
+ twi_init(); // on pins D(1,0)
+
+ // unused pins
+ // --- set as input
+ TEENSYPIN_WRITE(DDR, CLEAR, UNUSED_0);
+ TEENSYPIN_WRITE(DDR, CLEAR, UNUSED_1);
+ TEENSYPIN_WRITE(DDR, CLEAR, UNUSED_2);
+ TEENSYPIN_WRITE(DDR, CLEAR, UNUSED_3);
+ TEENSYPIN_WRITE(DDR, CLEAR, UNUSED_4);
+ TEENSYPIN_WRITE(DDR, CLEAR, UNUSED_5);
+ // --- set internal pull-up enabled
+ TEENSYPIN_WRITE(PORT, SET, UNUSED_0);
+ TEENSYPIN_WRITE(PORT, SET, UNUSED_1);
+ TEENSYPIN_WRITE(PORT, SET, UNUSED_2);
+ TEENSYPIN_WRITE(PORT, SET, UNUSED_3);
+ TEENSYPIN_WRITE(PORT, SET, UNUSED_4);
+ TEENSYPIN_WRITE(PORT, SET, UNUSED_5);
+
+ // rows
+ // --- set as input (hi-Z)
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_0);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_1);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_2);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_3);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_4);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_5);
+ // --- set internal pull-up disabled
+ TEENSYPIN_WRITE(PORT, CLEAR, ROW_0);
+ TEENSYPIN_WRITE(PORT, CLEAR, ROW_1);
+ TEENSYPIN_WRITE(PORT, CLEAR, ROW_2);
+ TEENSYPIN_WRITE(PORT, CLEAR, ROW_3);
+ TEENSYPIN_WRITE(PORT, CLEAR, ROW_4);
+ TEENSYPIN_WRITE(PORT, CLEAR, ROW_5);
+
+ // columns
+ // --- set as input
+ TEENSYPIN_WRITE(DDR, CLEAR, COLUMN_0);
+ TEENSYPIN_WRITE(DDR, CLEAR, COLUMN_1);
+ TEENSYPIN_WRITE(DDR, CLEAR, COLUMN_2);
+ TEENSYPIN_WRITE(DDR, CLEAR, COLUMN_3);
+ TEENSYPIN_WRITE(DDR, CLEAR, COLUMN_4);
+ TEENSYPIN_WRITE(DDR, CLEAR, COLUMN_5);
+ TEENSYPIN_WRITE(DDR, CLEAR, COLUMN_6);
+ // --- set internal pull-up enabled
+ TEENSYPIN_WRITE(PORT, SET, COLUMN_0);
+ TEENSYPIN_WRITE(PORT, SET, COLUMN_1);
+ TEENSYPIN_WRITE(PORT, SET, COLUMN_2);
+ TEENSYPIN_WRITE(PORT, SET, COLUMN_3);
+ TEENSYPIN_WRITE(PORT, SET, COLUMN_4);
+ TEENSYPIN_WRITE(PORT, SET, COLUMN_5);
+ TEENSYPIN_WRITE(PORT, SET, COLUMN_6);
+
+ return 0; // success
+}
+
+/* returns
+ * - success: 0
+ */
+#if KB_ROWS != 12 || KB_COLUMNS != 7
+ #error "Expecting different keyboard dimensions"
+#endif
+static inline void _update_columns(
+ bool matrix[KB_ROWS][KB_COLUMNS], uint8_t row ) {
+ matrix[row][0] = ! TEENSYPIN_READ(COLUMN_0);
+ matrix[row][1] = ! TEENSYPIN_READ(COLUMN_1);
+ matrix[row][2] = ! TEENSYPIN_READ(COLUMN_2);
+ matrix[row][3] = ! TEENSYPIN_READ(COLUMN_3);
+ matrix[row][4] = ! TEENSYPIN_READ(COLUMN_4);
+ matrix[row][5] = ! TEENSYPIN_READ(COLUMN_5);
+ matrix[row][6] = ! TEENSYPIN_READ(COLUMN_6);
+}
+uint8_t teensy_update_matrix(bool matrix[KB_ROWS][KB_COLUMNS]) {
+ TEENSYPIN_WRITE(DDR, SET, ROW_0); // set row low (set as output)
+ _update_columns(matrix, 0); // read col 0..6 and update matrix
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_0); // set row hi-Z (set as input)
+
+ TEENSYPIN_WRITE(DDR, SET, ROW_1);
+ _update_columns(matrix, 1);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_1);
+
+ TEENSYPIN_WRITE(DDR, SET, ROW_2);
+ _update_columns(matrix, 2);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_2);
+
+ TEENSYPIN_WRITE(DDR, SET, ROW_3);
+ _update_columns(matrix, 3);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_3);
+
+ TEENSYPIN_WRITE(DDR, SET, ROW_4);
+ _update_columns(matrix, 4);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_4);
+
+ TEENSYPIN_WRITE(DDR, SET, ROW_5);
+ _update_columns(matrix, 5);
+ TEENSYPIN_WRITE(DDR, CLEAR, ROW_5);
+
+ return 0; // success
+}
+
diff --git a/src/keyboard/ergodox/teensy-2-0.h b/src/keyboard/ergodox/teensy-2-0.h
new file mode 100644
index 0000000..b7f6d32
--- /dev/null
+++ b/src/keyboard/ergodox/teensy-2-0.h
@@ -0,0 +1,43 @@
+/* ----------------------------------------------------------------------------
+ * ergoDOX controller: Teensy 2.0 specific exports
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#ifndef TEENSY_2_0_h
+ #define TEENSY_2_0_h
+
+ #include // for the register macros
+
+ #include "lib/data-types.h"
+
+ #include "matrix.h"
+
+ // LED control
+ #define KB_LED1_ON (DDRB |= (1<<5))
+ #define KB_LED1_OFF (DDRB &= ~(1<<5))
+ #define KB_LED1_SET(n) (OCR1A = (uint8_t)(n))
+ #define KB_LED1_SET_PERCENT(n) (OCR1A = (uint8_t)((n) * 0xFF))
+ #define KB_LED2_ON (DDRB |= (1<<6))
+ #define KB_LED2_OFF (DDRB &= ~(1<<6))
+ #define KB_LED2_SET(n) (OCR1B = (uint8_t)(n))
+ #define KB_LED2_SET_PERCENT(n) (OCR1B = (uint8_t)((n) * 0xFF))
+ #define KB_LED3_ON (DDRB |= (1<<7))
+ #define KB_LED3_OFF (DDRB &= ~(1<<7))
+ #define KB_LED3_SET(n) (OCR1C = (uint8_t)(n))
+ #define KB_LED3_SET_PERCENT(n) (OCR1C = (uint8_t)((n) * 0xFF))
+
+
+ #ifdef KEYBOARD_INCLUDE_PRIVATE
+
+ uint8_t teensy_init(void);
+ uint8_t teensy_update_matrix(
+ bool matrix[KB_ROWS][KB_COLUMNS] );
+
+ #endif
+
+#endif
+
diff --git a/src/keyboard/ergodox/teensy-2-0.md b/src/keyboard/ergodox/teensy-2-0.md
new file mode 100644
index 0000000..f9f00a3
--- /dev/null
+++ b/src/keyboard/ergodox/teensy-2-0.md
@@ -0,0 +1,119 @@
+# Documentation : Teensy 2.0
+
+## Pinout and Pin assignments
+
+* `+` indicates pin
+* `o` indicates unused pin
+* `-`s inserted between some of the pin functions for readability
+* `OC**` pins enclosed in parenthesis had lines over them in the pinout
+
+### Teensy 2.0
+
+ GND +---.....---+ Vcc
+ SS PB0 + + PF0 ADC0
+ SCLK PB1 + + PF1 ADC1
+ MOSI PB2 + + PF4 ADC4
+ MISO PB3 + + + + PF5 ADC5
+ RTS OC1C OC0A --------- PB7 + PE6 AREF + PF6 ADC6
+ OC0B INT0 SCL PD0 + AIN0 + PF7 ADC7
+ INT1 SDA PD1 + INT6 + PB6 ADC13 OC1B OC4B
+ RXD1 ----------- INT2 --- PD2 + + PB5 ADC12 OC1A (OC4B)
+ TXD1 ----------- INT3 --- PD3 + + PB4 ADC11
+ OC3A (OC4A) -------- PC6 + + PD7 ADC10 T0 -- OC4D
+ ICP3 ----- OC4A --------- PC7 +-+-+-+-+-+-+ PD6 ADC9 T1 - (OC4D) onboardLED
+ CTS XCK1 PD5 --/ | | | \-- PD4 ADC8 ------------ ICP1
+ Vcc ------------------/ | \-------------- RST
+ GND --------------------/
+
+### Teensy 2.0 Pin Assignments
+
+ power_negative GND +---.....---+ Vcc power_positive
+ column6 PB0 + + PF0 row0
+ PB1 o + PF1 row1
+ PB2 o + PF4 row2
+ PB3 o o o + PF5 row3
+ (OC1C) LED3 PB7 + PE6 AREF + PF6 row4
+ (SCL) I2C PD0 + + PF7 row5
+ (SDA) I2C PD1 + + PB6 LED2 (OC1B)
+ column3 PD2 + + PB5 LED1 (OC1A)
+ column4 PD3 + + PB4 column0
+ column1 PC6 + + PD7 column5
+ column2 PC7 +-o-o-o-o-o-+ PD6 onboardLED
+ PD5 --/ | | | \-- PD4
+ Vcc ----/ | \---- RST
+ GND-------/
+
+* notes:
+ * SCL and SDA: Need external pull-up resistors. Sometimes the Teensy
+ internal pull-ups are enough (see datasheet section 20.5.1), but i think
+ for this project we'll want external ones. The general recommendation for
+ 400kHz I²C seems to be 2.2kΩ.
+
+
+## Notes about Registers
+
+### General I/O (see datasheet section 10.2.1)
+
+ DDRxn function PORTxn function
+ 1 output 1 drive high
+ 0 drive low
+ 0 input 1 internal pull-up on
+ 0 internal pull-up off
+
+ PINxn action function
+ write 1 toggles the value of PORTxn
+ read returns the logical value (1|0) of the pin
+
+* notes:
+ * Unused pins should be set as input, with internal pullup enabled in order
+ to give them a defined level (see datasheet section 10.2.6).
+ * PD6 (the onboard LED) already has a defined level (low), so there's no
+ reason to set internal pull-up enabled on it. If we do, it will source
+ current to the LED, which is fine, but unnecessary.
+ * We want the row pins 'hi-Z' initially (set as input with pull-up disabled),
+ and the column pins set as input with internal pull-up enabled. We'll
+ cycle through driving the row pins low (setting them as output) and
+ checking the column pins in the update function.
+ * Switching the row pins between hi-Z and drive low (treating them as if
+ they were open drain) seems just as good as, and a little safer than,
+ driving them high when the row's not active.
+
+### PWM on ports OC1(A|B|C) (see datasheet section 14.10)
+
+* notes: settings:
+ * PWM pins should be set as outputs.
+ * we want Waveform Generation Mode 5
+ (fast PWM, 8-bit)
+ (see table 14-5)
+ * set `TCCRB[4,3],TCCRA[1,0]` to `0,1,0,1`
+ * we want "Compare Output Mode, Fast PWM" to be `0b10`
+ "Clear OCnA/OCnB/OCnC on compare match, set OCnA/OCnB/OCnC at TOP"
+ (see table 14-3)
+ this way higher values of `OCR1(A|B|C)` will mean longer 'on' times for the
+ LEDs (provided they're hooked up to GND; other way around if they're hooked
+ up to Vcc)
+ * when in a fast PWM mode, set `TCCR1A[7,6,5,4,3,2]` to `1,0,1,0,1,0`
+ * we want "Clock Select Bit Description" to be `0b001`
+ "clkI/O/1 (No prescaling)"
+ (see table 14-6)
+ * set `TCCR1B[2,1,0]` to `0,0,1`
+ * LEDs will be at minimum brightness until OCR1(A|B|C) are changed (since
+ the default value of all the bits in those registers is 0)
+
+* notes: behavior:
+ * The pins source current when on, and sink current when off. They aren't
+ set to high impediance for either.
+ * In Fast PWM mode setting `OCR1(A|B|C)` to `0` does not make the output on
+ `OC1(A|B|C)` constant low; just close. Per the datasheet, this isn't true
+ for every PWM mode.
+
+* abbreviations:
+ * OCR = Output Compare Register
+ * TCCR = Timer/Counter Control Register
+
+-------------------------------------------------------------------------------
+
+Copyright © 2012 Ben Blazak
+Released under The MIT License (MIT) (see "license.md")
+Project located at
+
diff --git a/src/lib-other/pjrc/blinky/Makefile b/src/lib-other/pjrc/blinky/Makefile
new file mode 100644
index 0000000..de834bb
--- /dev/null
+++ b/src/lib-other/pjrc/blinky/Makefile
@@ -0,0 +1,614 @@
+# Hey Emacs, this is a -*- makefile -*-
+#----------------------------------------------------------------------------
+# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.
+#
+# Released to the Public Domain
+#
+# Additional material for this makefile was written by:
+# Peter Fleury
+# Tim Henigan
+# Colin O'Flynn
+# Reiner Patommel
+# Markus Pfaff
+# Sander Pool
+# Frederik Rouleau
+# Carlos Lamas
+#
+#----------------------------------------------------------------------------
+# On command line:
+#
+# make all = Make software.
+#
+# make clean = Clean out built project files.
+#
+# make coff = Convert ELF to AVR COFF.
+#
+# make extcoff = Convert ELF to AVR Extended COFF.
+#
+# make program = Download the hex file to the device, using avrdude.
+# Please customize the avrdude settings below first!
+#
+# make debug = Start either simulavr or avarice as specified for debugging,
+# with avr-gdb or avr-insight as the front end for debugging.
+#
+# make filename.s = Just compile filename.c into the assembler code only.
+#
+# make filename.i = Create a preprocessed source file for use in submitting
+# bug reports to the GCC project.
+#
+# To rebuild project do "make clean" then "make all".
+#----------------------------------------------------------------------------
+
+
+# Target file name (without extension).
+TARGET = blinky
+
+
+# List C source files here. (C dependencies are automatically generated.)
+SRC = $(TARGET).c \
+ usb_debug_only.c \
+ print.c
+
+# MCU name, you MUST set this to match the board you are using
+# type "make clean" after changing this, so all files will be rebuilt
+#
+#MCU = at90usb162 # Teensy 1.0
+MCU = atmega32u4 # Teensy 2.0
+#MCU = at90usb646 # Teensy++ 1.0
+#MCU = at90usb1286 # Teensy++ 2.0
+
+
+# Processor frequency.
+# Normally the first thing your program should do is set the clock prescaler,
+# so your program will run at the correct speed. You should also set this
+# variable to same clock speed. The _delay_ms() macro uses this, and many
+# examples use this variable to calculate timings. Do not add a "UL" here.
+F_CPU = 16000000
+
+
+# Output format. (can be srec, ihex, binary)
+FORMAT = ihex
+
+
+# Object files directory
+# To put object files in current directory, use a dot (.), do NOT make
+# this an empty or blank macro!
+OBJDIR = .
+
+
+# List C++ source files here. (C dependencies are automatically generated.)
+CPPSRC =
+
+
+# List Assembler source files here.
+# Make them always end in a capital .S. Files ending in a lowercase .s
+# will not be considered source files but generated files (assembler
+# output from the compiler), and will be deleted upon "make clean"!
+# Even though the DOS/Win* filesystem matches both .s and .S the same,
+# it will preserve the spelling of the filenames, and gcc itself does
+# care about how the name is spelled on its command-line.
+ASRC =
+
+
+# Optimization level, can be [0, 1, 2, 3, s].
+# 0 = turn off optimization. s = optimize for size.
+# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
+OPT = s
+
+
+# Debugging format.
+# Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
+# AVR Studio 4.10 requires dwarf-2.
+# AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
+DEBUG = dwarf-2
+
+
+# List any extra directories to look for include files here.
+# Each directory must be seperated by a space.
+# Use forward slashes for directory separators.
+# For a directory that has spaces, enclose it in quotes.
+EXTRAINCDIRS =
+
+
+# Compiler flag to set the C Standard level.
+# c89 = "ANSI" C
+# gnu89 = c89 plus GCC extensions
+# c99 = ISO C99 standard (not yet fully implemented)
+# gnu99 = c99 plus GCC extensions
+CSTANDARD = -std=gnu99
+
+
+# Place -D or -U options here for C sources
+CDEFS = -DF_CPU=$(F_CPU)UL
+
+
+# Place -D or -U options here for ASM sources
+ADEFS = -DF_CPU=$(F_CPU)
+
+
+# Place -D or -U options here for C++ sources
+CPPDEFS = -DF_CPU=$(F_CPU)UL
+#CPPDEFS += -D__STDC_LIMIT_MACROS
+#CPPDEFS += -D__STDC_CONSTANT_MACROS
+
+
+
+#---------------- Compiler Options C ----------------
+# -g*: generate debugging information
+# -O*: optimization level
+# -f...: tuning, see GCC manual and avr-libc documentation
+# -Wall...: warning level
+# -Wa,...: tell GCC to pass this to the assembler.
+# -adhlns...: create assembler listing
+CFLAGS = -g$(DEBUG)
+CFLAGS += $(CDEFS)
+CFLAGS += -O$(OPT)
+CFLAGS += -funsigned-char
+CFLAGS += -funsigned-bitfields
+CFLAGS += -ffunction-sections
+CFLAGS += -fpack-struct
+CFLAGS += -fshort-enums
+CFLAGS += -Wall
+CFLAGS += -Wstrict-prototypes
+#CFLAGS += -mshort-calls
+#CFLAGS += -fno-unit-at-a-time
+#CFLAGS += -Wundef
+#CFLAGS += -Wunreachable-code
+#CFLAGS += -Wsign-compare
+CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)
+CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
+CFLAGS += $(CSTANDARD)
+
+
+#---------------- Compiler Options C++ ----------------
+# -g*: generate debugging information
+# -O*: optimization level
+# -f...: tuning, see GCC manual and avr-libc documentation
+# -Wall...: warning level
+# -Wa,...: tell GCC to pass this to the assembler.
+# -adhlns...: create assembler listing
+CPPFLAGS = -g$(DEBUG)
+CPPFLAGS += $(CPPDEFS)
+CPPFLAGS += -O$(OPT)
+CPPFLAGS += -funsigned-char
+CPPFLAGS += -funsigned-bitfields
+CPPFLAGS += -fpack-struct
+CPPFLAGS += -fshort-enums
+CPPFLAGS += -fno-exceptions
+CPPFLAGS += -Wall
+CPPFLAGS += -Wundef
+#CPPFLAGS += -mshort-calls
+#CPPFLAGS += -fno-unit-at-a-time
+#CPPFLAGS += -Wstrict-prototypes
+#CPPFLAGS += -Wunreachable-code
+#CPPFLAGS += -Wsign-compare
+CPPFLAGS += -Wa,-adhlns=$(<:%.cpp=$(OBJDIR)/%.lst)
+CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
+#CPPFLAGS += $(CSTANDARD)
+
+
+#---------------- Assembler Options ----------------
+# -Wa,...: tell GCC to pass this to the assembler.
+# -adhlns: create listing
+# -gstabs: have the assembler create line number information; note that
+# for use in COFF files, additional information about filenames
+# and function names needs to be present in the assembler source
+# files -- see avr-libc docs [FIXME: not yet described there]
+# -listing-cont-lines: Sets the maximum number of continuation lines of hex
+# dump that will be displayed for a given single line of source input.
+ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs,--listing-cont-lines=100
+
+
+#---------------- Library Options ----------------
+# Minimalistic printf version
+PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
+
+# Floating point printf version (requires MATH_LIB = -lm below)
+PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
+
+# If this is left blank, then it will use the Standard printf version.
+PRINTF_LIB =
+#PRINTF_LIB = $(PRINTF_LIB_MIN)
+#PRINTF_LIB = $(PRINTF_LIB_FLOAT)
+
+
+# Minimalistic scanf version
+SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
+
+# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
+SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
+
+# If this is left blank, then it will use the Standard scanf version.
+SCANF_LIB =
+#SCANF_LIB = $(SCANF_LIB_MIN)
+#SCANF_LIB = $(SCANF_LIB_FLOAT)
+
+
+MATH_LIB = -lm
+
+
+# List any extra directories to look for libraries here.
+# Each directory must be seperated by a space.
+# Use forward slashes for directory separators.
+# For a directory that has spaces, enclose it in quotes.
+EXTRALIBDIRS =
+
+
+
+#---------------- External Memory Options ----------------
+
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
+# used for variables (.data/.bss) and heap (malloc()).
+#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
+
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
+# only used for heap (malloc()).
+#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
+
+EXTMEMOPTS =
+
+
+
+#---------------- Linker Options ----------------
+# -Wl,...: tell GCC to pass this to linker.
+# -Map: create map file
+# --cref: add cross reference to map file
+LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
+LDFLAGS += -Wl,--relax
+LDFLAGS += -Wl,--gc-sections
+LDFLAGS += $(EXTMEMOPTS)
+LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
+LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
+#LDFLAGS += -T linker_script.x
+
+
+
+#---------------- Programming Options (avrdude) ----------------
+
+# Programming hardware
+# Type: avrdude -c ?
+# to get a full listing.
+#
+AVRDUDE_PROGRAMMER = stk500v2
+
+# com1 = serial port. Use lpt1 to connect to parallel port.
+AVRDUDE_PORT = com1 # programmer connected to serial device
+
+AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
+#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
+
+
+# Uncomment the following if you want avrdude's erase cycle counter.
+# Note that this counter needs to be initialized first using -Yn,
+# see avrdude manual.
+#AVRDUDE_ERASE_COUNTER = -y
+
+# Uncomment the following if you do /not/ wish a verification to be
+# performed after programming the device.
+#AVRDUDE_NO_VERIFY = -V
+
+# Increase verbosity level. Please use this when submitting bug
+# reports about avrdude. See
+# to submit bug reports.
+#AVRDUDE_VERBOSE = -v -v
+
+AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
+AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
+AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
+AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
+
+
+
+#---------------- Debugging Options ----------------
+
+# For simulavr only - target MCU frequency.
+DEBUG_MFREQ = $(F_CPU)
+
+# Set the DEBUG_UI to either gdb or insight.
+# DEBUG_UI = gdb
+DEBUG_UI = insight
+
+# Set the debugging back-end to either avarice, simulavr.
+DEBUG_BACKEND = avarice
+#DEBUG_BACKEND = simulavr
+
+# GDB Init Filename.
+GDBINIT_FILE = __avr_gdbinit
+
+# When using avarice settings for the JTAG
+JTAG_DEV = /dev/com1
+
+# Debugging port used to communicate between GDB / avarice / simulavr.
+DEBUG_PORT = 4242
+
+# Debugging host used to communicate between GDB / avarice / simulavr, normally
+# just set to localhost unless doing some sort of crazy debugging when
+# avarice is running on a different computer.
+DEBUG_HOST = localhost
+
+
+
+#============================================================================
+
+
+# Define programs and commands.
+SHELL = sh
+CC = avr-gcc
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE = avr-size
+AR = avr-ar rcs
+NM = avr-nm
+AVRDUDE = avrdude
+REMOVE = rm -f
+REMOVEDIR = rm -rf
+COPY = cp
+WINSHELL = cmd
+
+
+# Define Messages
+# English
+MSG_ERRORS_NONE = Errors: none
+MSG_BEGIN = -------- begin --------
+MSG_END = -------- end --------
+MSG_SIZE_BEFORE = Size before:
+MSG_SIZE_AFTER = Size after:
+MSG_COFF = Converting to AVR COFF:
+MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
+MSG_FLASH = Creating load file for Flash:
+MSG_EEPROM = Creating load file for EEPROM:
+MSG_EXTENDED_LISTING = Creating Extended Listing:
+MSG_SYMBOL_TABLE = Creating Symbol Table:
+MSG_LINKING = Linking:
+MSG_COMPILING = Compiling C:
+MSG_COMPILING_CPP = Compiling C++:
+MSG_ASSEMBLING = Assembling:
+MSG_CLEANING = Cleaning project:
+MSG_CREATING_LIBRARY = Creating library:
+
+
+
+
+# Define all object files.
+OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o)
+
+# Define all listing files.
+LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst)
+
+
+# Compiler flags to generate dependency files.
+GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
+
+
+# Combine all necessary flags and optional flags.
+# Add target processor to flags.
+ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
+ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS)
+ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
+
+
+
+
+
+# Default target.
+all: begin gccversion sizebefore build sizeafter end
+
+# Change the build target to build a HEX file or a library.
+build: elf hex eep lss sym
+#build: lib
+
+
+elf: $(TARGET).elf
+hex: $(TARGET).hex
+eep: $(TARGET).eep
+lss: $(TARGET).lss
+sym: $(TARGET).sym
+LIBNAME=lib$(TARGET).a
+lib: $(LIBNAME)
+
+
+
+# Eye candy.
+# AVR Studio 3.x does not check make's exit code but relies on
+# the following magic strings to be generated by the compile job.
+begin:
+ @echo
+ @echo $(MSG_BEGIN)
+
+end:
+ @echo $(MSG_END)
+ @echo
+
+
+# Display size of file.
+HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
+#ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(TARGET).elf
+
+sizebefore:
+ @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
+ 2>/dev/null; echo; fi
+
+sizeafter:
+ @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \
+ 2>/dev/null; echo; fi
+
+
+
+# Display compiler version information.
+gccversion :
+ @$(CC) --version
+
+
+
+# Program the device.
+program: $(TARGET).hex $(TARGET).eep
+ $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
+
+
+# Generate avr-gdb config/init file which does the following:
+# define the reset signal, load the target file, connect to target, and set
+# a breakpoint at main().
+gdb-config:
+ @$(REMOVE) $(GDBINIT_FILE)
+ @echo define reset >> $(GDBINIT_FILE)
+ @echo SIGNAL SIGHUP >> $(GDBINIT_FILE)
+ @echo end >> $(GDBINIT_FILE)
+ @echo file $(TARGET).elf >> $(GDBINIT_FILE)
+ @echo target remote $(DEBUG_HOST):$(DEBUG_PORT) >> $(GDBINIT_FILE)
+ifeq ($(DEBUG_BACKEND),simulavr)
+ @echo load >> $(GDBINIT_FILE)
+endif
+ @echo break main >> $(GDBINIT_FILE)
+
+debug: gdb-config $(TARGET).elf
+ifeq ($(DEBUG_BACKEND), avarice)
+ @echo Starting AVaRICE - Press enter when "waiting to connect" message displays.
+ @$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \
+ $(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)
+ @$(WINSHELL) /c pause
+
+else
+ @$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \
+ $(DEBUG_MFREQ) --port $(DEBUG_PORT)
+endif
+ @$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)
+
+
+
+
+# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
+COFFCONVERT = $(OBJCOPY) --debugging
+COFFCONVERT += --change-section-address .data-0x800000
+COFFCONVERT += --change-section-address .bss-0x800000
+COFFCONVERT += --change-section-address .noinit-0x800000
+COFFCONVERT += --change-section-address .eeprom-0x810000
+
+
+
+coff: $(TARGET).elf
+ @echo
+ @echo $(MSG_COFF) $(TARGET).cof
+ $(COFFCONVERT) -O coff-avr $< $(TARGET).cof
+
+
+extcoff: $(TARGET).elf
+ @echo
+ @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
+ $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
+
+
+
+# Create final output files (.hex, .eep) from ELF output file.
+%.hex: %.elf
+ @echo
+ @echo $(MSG_FLASH) $@
+ $(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock -R .signature $< $@
+
+%.eep: %.elf
+ @echo
+ @echo $(MSG_EEPROM) $@
+ -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
+ --change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) $< $@ || exit 0
+
+# Create extended listing file from ELF output file.
+%.lss: %.elf
+ @echo
+ @echo $(MSG_EXTENDED_LISTING) $@
+ $(OBJDUMP) -h -S -z $< > $@
+
+# Create a symbol table from ELF output file.
+%.sym: %.elf
+ @echo
+ @echo $(MSG_SYMBOL_TABLE) $@
+ $(NM) -n $< > $@
+
+
+
+# Create library from object files.
+.SECONDARY : $(TARGET).a
+.PRECIOUS : $(OBJ)
+%.a: $(OBJ)
+ @echo
+ @echo $(MSG_CREATING_LIBRARY) $@
+ $(AR) $@ $(OBJ)
+
+
+# Link: create ELF output file from object files.
+.SECONDARY : $(TARGET).elf
+.PRECIOUS : $(OBJ)
+%.elf: $(OBJ)
+ @echo
+ @echo $(MSG_LINKING) $@
+ $(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
+
+
+# Compile: create object files from C source files.
+$(OBJDIR)/%.o : %.c
+ @echo
+ @echo $(MSG_COMPILING) $<
+ $(CC) -c $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create object files from C++ source files.
+$(OBJDIR)/%.o : %.cpp
+ @echo
+ @echo $(MSG_COMPILING_CPP) $<
+ $(CC) -c $(ALL_CPPFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C source files.
+%.s : %.c
+ $(CC) -S $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C++ source files.
+%.s : %.cpp
+ $(CC) -S $(ALL_CPPFLAGS) $< -o $@
+
+
+# Assemble: create object files from assembler source files.
+$(OBJDIR)/%.o : %.S
+ @echo
+ @echo $(MSG_ASSEMBLING) $<
+ $(CC) -c $(ALL_ASFLAGS) $< -o $@
+
+
+# Create preprocessed source for use in sending a bug report.
+%.i : %.c
+ $(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@
+
+
+# Target: clean project.
+clean: begin clean_list end
+
+clean_list :
+ @echo
+ @echo $(MSG_CLEANING)
+ $(REMOVE) $(TARGET).hex
+ $(REMOVE) $(TARGET).eep
+ $(REMOVE) $(TARGET).cof
+ $(REMOVE) $(TARGET).elf
+ $(REMOVE) $(TARGET).map
+ $(REMOVE) $(TARGET).sym
+ $(REMOVE) $(TARGET).lss
+ $(REMOVE) $(SRC:%.c=$(OBJDIR)/%.o)
+ $(REMOVE) $(SRC:%.c=$(OBJDIR)/%.lst)
+ $(REMOVE) $(SRC:.c=.s)
+ $(REMOVE) $(SRC:.c=.d)
+ $(REMOVE) $(SRC:.c=.i)
+ $(REMOVEDIR) .dep
+
+
+# Create object files directory
+$(shell mkdir $(OBJDIR) 2>/dev/null)
+
+
+# Include the dependency files.
+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
+
+
+# Listing of phony targets.
+.PHONY : all begin finish end sizebefore sizeafter gccversion \
+build elf hex eep lss sym coff extcoff \
+clean clean_list program debug gdb-config
diff --git a/src/lib-other/pjrc/blinky/blinky.c b/src/lib-other/pjrc/blinky/blinky.c
new file mode 100644
index 0000000..b9a8da8
--- /dev/null
+++ b/src/lib-other/pjrc/blinky/blinky.c
@@ -0,0 +1,159 @@
+/* LED Blink Example with USB Debug Channel for Teensy USB Development Board
+ * http://www.pjrc.com/teensy/
+ * Copyright (c) 2008, 2010 PJRC.COM, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include
+#include
+#include
+#include "usb_debug_only.h"
+#include "print.h"
+
+
+// Teensy 2.0: LED is active high
+#if defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB1286__)
+#define LED_ON (PORTD |= (1<<6))
+#define LED_OFF (PORTD &= ~(1<<6))
+
+// Teensy 1.0: LED is active low
+#else
+#define LED_ON (PORTD &= ~(1<<6))
+#define LED_OFF (PORTD |= (1<<6))
+#endif
+
+#define LED_CONFIG (DDRD |= (1<<6))
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+#define DIT 80 /* unit time for morse code */
+
+void morse_character(char c);
+void morse_P(const char *s);
+const unsigned char morse_code_table[];
+
+
+int main(void)
+{
+ unsigned char i;
+
+ // set for 16 MHz clock, and make sure the LED is off
+ CPU_PRESCALE(0);
+ LED_CONFIG;
+ LED_OFF;
+
+ // initialize the USB, but don't want for the host to
+ // configure. The first several messages sent will be
+ // lost because the PC hasn't configured the USB yet,
+ // but we care more about blinking than debug messages!
+ usb_init();
+
+ // blink morse code messages!
+ while (1) {
+ for (i=0; i<6; i++) {
+ morse_P(PSTR("SOS"));
+ _delay_ms(1500);
+ }
+ morse_P(PSTR("DOES ANYBODY STILL KNOW MORSE CODE?"));
+ _delay_ms(4000);
+ }
+}
+
+// blink a single character in Morse code
+void morse_character(char c)
+{
+ unsigned char code, count;
+
+ if (c == ' ') {
+ print("Space\n");
+ _delay_ms(DIT * 7);
+ return;
+ }
+ if (c < 'A' || c > 'Z') {
+ print("Opps, unsupported character: ");
+ pchar(c);
+ print("\n");
+ return;
+ }
+ print("Char ");
+ pchar(c);
+ pchar(':');
+ code = pgm_read_byte(morse_code_table + (c - 'A'));
+ for (count = code & 0x07; count > 0; count--) {
+ LED_ON;
+ if (code & 0x80) {
+ print(" dah");
+ _delay_ms(DIT * 3);
+ } else {
+ print(" dit");
+ _delay_ms(DIT);
+ }
+ LED_OFF;
+ _delay_ms(DIT);
+ code = code << 1;
+ }
+ print("\n");
+ _delay_ms(DIT * 2);
+}
+
+// blink an entire message in Morse code
+// the string must be in flash memory (using PSTR macro)
+void morse_P(const char *s)
+{
+ char c;
+
+ while (1) {
+ c = pgm_read_byte(s++);
+ if (!c) break;
+ morse_character(c);
+ }
+ print("\n");
+}
+
+// lookup table for all 26 letters. Upper 5 bits are the pulses
+// to send (MSB first), and the lower 3 bits are the number of
+// bits to send for this letter.
+const unsigned char PROGMEM morse_code_table[] = {
+ 0x40 + 2, // A: .-
+ 0x80 + 4, // B: -...
+ 0xA0 + 4, // C: -.-.
+ 0x80 + 3, // D: -..
+ 0x00 + 1, // E: .
+ 0x20 + 4, // F: ..-.
+ 0xC0 + 3, // G: --.
+ 0x00 + 4, // H: ....
+ 0x00 + 2, // I: ..
+ 0x70 + 4, // J: .---
+ 0xA0 + 3, // K: -.-
+ 0x40 + 4, // L: .-..
+ 0xC0 + 2, // M: --
+ 0x80 + 2, // N: -.
+ 0xE0 + 3, // O: ---
+ 0x60 + 4, // P: .--.
+ 0xD0 + 4, // Q: --.-
+ 0x40 + 3, // R: .-.
+ 0x00 + 3, // S: ...
+ 0x80 + 1, // T: -
+ 0x20 + 3, // U: ..-
+ 0x10 + 4, // V: ...-
+ 0x60 + 3, // W: .--
+ 0x90 + 4, // X: -..-
+ 0xB0 + 4, // Y: -.--
+ 0xC0 + 4 // Z: --..
+};
+
diff --git a/src/lib-other/pjrc/blinky/print.c b/src/lib-other/pjrc/blinky/print.c
new file mode 100644
index 0000000..e6aa1fe
--- /dev/null
+++ b/src/lib-other/pjrc/blinky/print.c
@@ -0,0 +1,62 @@
+/* Very basic print functions, intended to be used with usb_debug_only.c
+ * http://www.pjrc.com/teensy/
+ * Copyright (c) 2008 PJRC.COM, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// Version 1.0: Initial Release
+
+#include
+#include
+
+#include "print.h"
+
+void print_P(const char *s)
+{
+ char c;
+
+ while (1) {
+ c = pgm_read_byte(s++);
+ if (!c) break;
+ if (c == '\n') usb_debug_putchar('\r');
+ usb_debug_putchar(c);
+ }
+}
+
+void phex1(unsigned char c)
+{
+ usb_debug_putchar(c + ((c < 10) ? '0' : 'A' - 10));
+}
+
+void phex(unsigned char c)
+{
+ phex1(c >> 4);
+ phex1(c & 15);
+}
+
+void phex16(unsigned int i)
+{
+ phex(i >> 8);
+ phex(i);
+}
+
+
+
+
diff --git a/src/lib-other/pjrc/blinky/print.h b/src/lib-other/pjrc/blinky/print.h
new file mode 100644
index 0000000..be7ce8c
--- /dev/null
+++ b/src/lib-other/pjrc/blinky/print.h
@@ -0,0 +1,16 @@
+#ifndef print_h__
+#define print_h__
+
+#include
+#include "usb_debug_only.h"
+
+// this macro allows you to write print("some text") and
+// the string is automatically placed into flash memory :)
+#define print(s) print_P(PSTR(s))
+#define pchar(c) usb_debug_putchar(c)
+
+void print_P(const char *s);
+void phex(unsigned char c);
+void phex16(unsigned int i);
+
+#endif
diff --git a/src/lib-other/pjrc/blinky/usb_debug_only.c b/src/lib-other/pjrc/blinky/usb_debug_only.c
new file mode 100644
index 0000000..b1e53a9
--- /dev/null
+++ b/src/lib-other/pjrc/blinky/usb_debug_only.c
@@ -0,0 +1,549 @@
+/* USB Debug Channel Example for Teensy USB Development Board
+ * http://www.pjrc.com/teensy/
+ * Copyright (c) 2008 PJRC.COM, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// Version 1.0: Initial Release
+// Version 1.1: Add support for Teensy 2.0
+
+#define USB_SERIAL_PRIVATE_INCLUDE
+#include "usb_debug_only.h"
+
+/**************************************************************************
+ *
+ * Configurable Options
+ *
+ **************************************************************************/
+
+// You can change these to give your code its own name. On Windows,
+// these are only used before an INF file (driver install) is loaded.
+#define STR_MANUFACTURER L"Your Name"
+#define STR_PRODUCT L"Your USB Device"
+
+
+// Mac OS-X and Linux automatically load the correct drivers. On
+// Windows, even though the driver is supplied by Microsoft, an
+// INF file is needed to load the driver. These numbers need to
+// match the INF file.
+#define VENDOR_ID 0x16C0
+#define PRODUCT_ID 0x0479
+
+
+// USB devices are supposed to implment a halt feature, which is
+// rarely (if ever) used. If you comment this line out, the halt
+// code will be removed, saving 102 bytes of space (gcc 4.3.0).
+// This is not strictly USB compliant, but works with all major
+// operating systems.
+#define SUPPORT_ENDPOINT_HALT
+
+
+
+/**************************************************************************
+ *
+ * Endpoint Buffer Configuration
+ *
+ **************************************************************************/
+
+// you might want to change the buffer size, up to 64 bytes.
+// The host reserves your bandwidth because this is an interrupt
+// endpoint, so it won't be available to other interrupt or isync
+// endpoints in other devices on the bus.
+
+#define ENDPOINT0_SIZE 32
+#define DEBUG_TX_ENDPOINT 3
+#define DEBUG_TX_SIZE 32
+#define DEBUG_TX_BUFFER EP_DOUBLE_BUFFER
+
+static const uint8_t PROGMEM endpoint_config_table[] = {
+ 0,
+ 0,
+ 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(DEBUG_TX_SIZE) | DEBUG_TX_BUFFER,
+ 0
+};
+
+
+/**************************************************************************
+ *
+ * Descriptor Data
+ *
+ **************************************************************************/
+
+// Descriptors are the data that your computer reads when it auto-detects
+// this USB device (called "enumeration" in USB lingo). The most commonly
+// changed items are editable at the top of this file. Changing things
+// in here should only be done by those who've read chapter 9 of the USB
+// spec and relevant portions of any USB class specifications!
+
+
+static uint8_t PROGMEM device_descriptor[] = {
+ 18, // bLength
+ 1, // bDescriptorType
+ 0x00, 0x02, // bcdUSB
+ 0, // bDeviceClass
+ 0, // bDeviceSubClass
+ 0, // bDeviceProtocol
+ ENDPOINT0_SIZE, // bMaxPacketSize0
+ LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
+ LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct
+ 0x00, 0x01, // bcdDevice
+ 1, // iManufacturer
+ 2, // iProduct
+ 0, // iSerialNumber
+ 1 // bNumConfigurations
+};
+
+static uint8_t PROGMEM hid_report_descriptor[] = {
+ 0x06, 0x31, 0xFF, // Usage Page 0xFF31 (vendor defined)
+ 0x09, 0x74, // Usage 0x74
+ 0xA1, 0x53, // Collection 0x53
+ 0x75, 0x08, // report size = 8 bits
+ 0x15, 0x00, // logical minimum = 0
+ 0x26, 0xFF, 0x00, // logical maximum = 255
+ 0x95, DEBUG_TX_SIZE, // report count
+ 0x09, 0x75, // usage
+ 0x81, 0x02, // Input (array)
+ 0xC0 // end collection
+};
+
+#define CONFIG1_DESC_SIZE (9+9+9+7)
+#define HID_DESC2_OFFSET (9+9)
+static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
+ // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
+ 9, // bLength;
+ 2, // bDescriptorType;
+ LSB(CONFIG1_DESC_SIZE), // wTotalLength
+ MSB(CONFIG1_DESC_SIZE),
+ 1, // bNumInterfaces
+ 1, // bConfigurationValue
+ 0, // iConfiguration
+ 0xC0, // bmAttributes
+ 50, // bMaxPower
+ // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
+ 9, // bLength
+ 4, // bDescriptorType
+ 0, // bInterfaceNumber
+ 0, // bAlternateSetting
+ 1, // bNumEndpoints
+ 0x03, // bInterfaceClass (0x03 = HID)
+ 0x00, // bInterfaceSubClass
+ 0x00, // bInterfaceProtocol
+ 0, // iInterface
+ // HID interface descriptor, HID 1.11 spec, section 6.2.1
+ 9, // bLength
+ 0x21, // bDescriptorType
+ 0x11, 0x01, // bcdHID
+ 0, // bCountryCode
+ 1, // bNumDescriptors
+ 0x22, // bDescriptorType
+ sizeof(hid_report_descriptor), // wDescriptorLength
+ 0,
+ // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
+ 7, // bLength
+ 5, // bDescriptorType
+ DEBUG_TX_ENDPOINT | 0x80, // bEndpointAddress
+ 0x03, // bmAttributes (0x03=intr)
+ DEBUG_TX_SIZE, 0, // wMaxPacketSize
+ 1 // bInterval
+};
+
+// If you're desperate for a little extra code memory, these strings
+// can be completely removed if iManufacturer, iProduct, iSerialNumber
+// in the device desciptor are changed to zeros.
+struct usb_string_descriptor_struct {
+ uint8_t bLength;
+ uint8_t bDescriptorType;
+ int16_t wString[];
+};
+static struct usb_string_descriptor_struct PROGMEM string0 = {
+ 4,
+ 3,
+ {0x0409}
+};
+static struct usb_string_descriptor_struct PROGMEM string1 = {
+ sizeof(STR_MANUFACTURER),
+ 3,
+ STR_MANUFACTURER
+};
+static struct usb_string_descriptor_struct PROGMEM string2 = {
+ sizeof(STR_PRODUCT),
+ 3,
+ STR_PRODUCT
+};
+
+// This table defines which descriptor data is sent for each specific
+// request from the host (in wValue and wIndex).
+static struct descriptor_list_struct {
+ uint16_t wValue;
+ uint16_t wIndex;
+ const uint8_t *addr;
+ uint8_t length;
+} PROGMEM descriptor_list[] = {
+ {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
+ {0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
+ {0x2200, 0x0000, hid_report_descriptor, sizeof(hid_report_descriptor)},
+ {0x2100, 0x0000, config1_descriptor+HID_DESC2_OFFSET, 9},
+ {0x0300, 0x0000, (const uint8_t *)&string0, 4},
+ {0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
+ {0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)}
+};
+#define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
+
+
+/**************************************************************************
+ *
+ * Variables - these are the only non-stack RAM usage
+ *
+ **************************************************************************/
+
+// zero when we are not configured, non-zero when enumerated
+static volatile uint8_t usb_configuration=0;
+
+// the time remaining before we transmit any partially full
+// packet, or send a zero length packet.
+static volatile uint8_t debug_flush_timer=0;
+
+
+/**************************************************************************
+ *
+ * Public Functions - these are the API intended for the user
+ *
+ **************************************************************************/
+
+
+// initialize USB
+void usb_init(void)
+{
+ HW_CONFIG();
+ USB_FREEZE(); // enable USB
+ PLL_CONFIG(); // config PLL
+ while (!(PLLCSR & (1<= NUM_DESC_LIST) {
+ UECONX = (1< desc_length) len = desc_length;
+ do {
+ // wait for host ready for IN packet
+ do {
+ i = UEINTX;
+ } while (!(i & ((1<= 1 && i <= MAX_ENDPOINT) {
+ usb_send_in();
+ UENUM = i;
+ if (bRequest == SET_FEATURE) {
+ UECONX = (1<
+
+void usb_init(void); // initialize everything
+uint8_t usb_configured(void); // is the USB port configured
+
+int8_t usb_debug_putchar(uint8_t c); // transmit a character
+void usb_debug_flush_output(void); // immediately transmit any buffered output
+#define USB_DEBUG_HID
+
+
+// Everything below this point is only intended for usb_serial.c
+#ifdef USB_SERIAL_PRIVATE_INCLUDE
+#include
+#include
+#include
+
+#define EP_TYPE_CONTROL 0x00
+#define EP_TYPE_BULK_IN 0x81
+#define EP_TYPE_BULK_OUT 0x80
+#define EP_TYPE_INTERRUPT_IN 0xC1
+#define EP_TYPE_INTERRUPT_OUT 0xC0
+#define EP_TYPE_ISOCHRONOUS_IN 0x41
+#define EP_TYPE_ISOCHRONOUS_OUT 0x40
+
+#define EP_SINGLE_BUFFER 0x02
+#define EP_DOUBLE_BUFFER 0x06
+
+#define EP_SIZE(s) ((s) == 64 ? 0x30 : \
+ ((s) == 32 ? 0x20 : \
+ ((s) == 16 ? 0x10 : \
+ 0x00)))
+
+#define MAX_ENDPOINT 4
+
+#define LSB(n) (n & 255)
+#define MSB(n) ((n >> 8) & 255)
+
+#if defined(__AVR_AT90USB162__)
+#define HW_CONFIG()
+#define PLL_CONFIG() (PLLCSR = ((1<
+# to submit bug reports.
+#AVRDUDE_VERBOSE = -v -v
+
+AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
+AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
+AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
+AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
+
+
+
+#---------------- Debugging Options ----------------
+
+# For simulavr only - target MCU frequency.
+DEBUG_MFREQ = $(F_CPU)
+
+# Set the DEBUG_UI to either gdb or insight.
+# DEBUG_UI = gdb
+DEBUG_UI = insight
+
+# Set the debugging back-end to either avarice, simulavr.
+DEBUG_BACKEND = avarice
+#DEBUG_BACKEND = simulavr
+
+# GDB Init Filename.
+GDBINIT_FILE = __avr_gdbinit
+
+# When using avarice settings for the JTAG
+JTAG_DEV = /dev/com1
+
+# Debugging port used to communicate between GDB / avarice / simulavr.
+DEBUG_PORT = 4242
+
+# Debugging host used to communicate between GDB / avarice / simulavr, normally
+# just set to localhost unless doing some sort of crazy debugging when
+# avarice is running on a different computer.
+DEBUG_HOST = localhost
+
+
+
+#============================================================================
+
+
+# Define programs and commands.
+SHELL = sh
+CC = avr-gcc
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE = avr-size
+AR = avr-ar rcs
+NM = avr-nm
+AVRDUDE = avrdude
+REMOVE = rm -f
+REMOVEDIR = rm -rf
+COPY = cp
+WINSHELL = cmd
+
+
+# Define Messages
+# English
+MSG_ERRORS_NONE = Errors: none
+MSG_BEGIN = -------- begin --------
+MSG_END = -------- end --------
+MSG_SIZE_BEFORE = Size before:
+MSG_SIZE_AFTER = Size after:
+MSG_COFF = Converting to AVR COFF:
+MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
+MSG_FLASH = Creating load file for Flash:
+MSG_EEPROM = Creating load file for EEPROM:
+MSG_EXTENDED_LISTING = Creating Extended Listing:
+MSG_SYMBOL_TABLE = Creating Symbol Table:
+MSG_LINKING = Linking:
+MSG_COMPILING = Compiling C:
+MSG_COMPILING_CPP = Compiling C++:
+MSG_ASSEMBLING = Assembling:
+MSG_CLEANING = Cleaning project:
+MSG_CREATING_LIBRARY = Creating library:
+
+
+
+
+# Define all object files.
+OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o)
+
+# Define all listing files.
+LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst)
+
+
+# Compiler flags to generate dependency files.
+GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
+
+
+# Combine all necessary flags and optional flags.
+# Add target processor to flags.
+ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
+ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS)
+ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
+
+
+
+
+
+# Default target.
+all: begin gccversion sizebefore build sizeafter end
+
+# Change the build target to build a HEX file or a library.
+build: elf hex eep lss sym
+#build: lib
+
+
+elf: $(TARGET).elf
+hex: $(TARGET).hex
+eep: $(TARGET).eep
+lss: $(TARGET).lss
+sym: $(TARGET).sym
+LIBNAME=lib$(TARGET).a
+lib: $(LIBNAME)
+
+
+
+# Eye candy.
+# AVR Studio 3.x does not check make's exit code but relies on
+# the following magic strings to be generated by the compile job.
+begin:
+ @echo
+ @echo $(MSG_BEGIN)
+
+end:
+ @echo $(MSG_END)
+ @echo
+
+
+# Display size of file.
+HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
+#ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(TARGET).elf
+
+sizebefore:
+ @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
+ 2>/dev/null; echo; fi
+
+sizeafter:
+ @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \
+ 2>/dev/null; echo; fi
+
+
+
+# Display compiler version information.
+gccversion :
+ @$(CC) --version
+
+
+
+# Program the device.
+program: $(TARGET).hex $(TARGET).eep
+ $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
+
+
+# Generate avr-gdb config/init file which does the following:
+# define the reset signal, load the target file, connect to target, and set
+# a breakpoint at main().
+gdb-config:
+ @$(REMOVE) $(GDBINIT_FILE)
+ @echo define reset >> $(GDBINIT_FILE)
+ @echo SIGNAL SIGHUP >> $(GDBINIT_FILE)
+ @echo end >> $(GDBINIT_FILE)
+ @echo file $(TARGET).elf >> $(GDBINIT_FILE)
+ @echo target remote $(DEBUG_HOST):$(DEBUG_PORT) >> $(GDBINIT_FILE)
+ifeq ($(DEBUG_BACKEND),simulavr)
+ @echo load >> $(GDBINIT_FILE)
+endif
+ @echo break main >> $(GDBINIT_FILE)
+
+debug: gdb-config $(TARGET).elf
+ifeq ($(DEBUG_BACKEND), avarice)
+ @echo Starting AVaRICE - Press enter when "waiting to connect" message displays.
+ @$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \
+ $(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)
+ @$(WINSHELL) /c pause
+
+else
+ @$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \
+ $(DEBUG_MFREQ) --port $(DEBUG_PORT)
+endif
+ @$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)
+
+
+
+
+# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
+COFFCONVERT = $(OBJCOPY) --debugging
+COFFCONVERT += --change-section-address .data-0x800000
+COFFCONVERT += --change-section-address .bss-0x800000
+COFFCONVERT += --change-section-address .noinit-0x800000
+COFFCONVERT += --change-section-address .eeprom-0x810000
+
+
+
+coff: $(TARGET).elf
+ @echo
+ @echo $(MSG_COFF) $(TARGET).cof
+ $(COFFCONVERT) -O coff-avr $< $(TARGET).cof
+
+
+extcoff: $(TARGET).elf
+ @echo
+ @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
+ $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
+
+
+
+# Create final output files (.hex, .eep) from ELF output file.
+%.hex: %.elf
+ @echo
+ @echo $(MSG_FLASH) $@
+ $(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock -R .signature $< $@
+
+%.eep: %.elf
+ @echo
+ @echo $(MSG_EEPROM) $@
+ -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
+ --change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) $< $@ || exit 0
+
+# Create extended listing file from ELF output file.
+%.lss: %.elf
+ @echo
+ @echo $(MSG_EXTENDED_LISTING) $@
+ $(OBJDUMP) -h -S -z $< > $@
+
+# Create a symbol table from ELF output file.
+%.sym: %.elf
+ @echo
+ @echo $(MSG_SYMBOL_TABLE) $@
+ $(NM) -n $< > $@
+
+
+
+# Create library from object files.
+.SECONDARY : $(TARGET).a
+.PRECIOUS : $(OBJ)
+%.a: $(OBJ)
+ @echo
+ @echo $(MSG_CREATING_LIBRARY) $@
+ $(AR) $@ $(OBJ)
+
+
+# Link: create ELF output file from object files.
+.SECONDARY : $(TARGET).elf
+.PRECIOUS : $(OBJ)
+%.elf: $(OBJ)
+ @echo
+ @echo $(MSG_LINKING) $@
+ $(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
+
+
+# Compile: create object files from C source files.
+$(OBJDIR)/%.o : %.c
+ @echo
+ @echo $(MSG_COMPILING) $<
+ $(CC) -c $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create object files from C++ source files.
+$(OBJDIR)/%.o : %.cpp
+ @echo
+ @echo $(MSG_COMPILING_CPP) $<
+ $(CC) -c $(ALL_CPPFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C source files.
+%.s : %.c
+ $(CC) -S $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C++ source files.
+%.s : %.cpp
+ $(CC) -S $(ALL_CPPFLAGS) $< -o $@
+
+
+# Assemble: create object files from assembler source files.
+$(OBJDIR)/%.o : %.S
+ @echo
+ @echo $(MSG_ASSEMBLING) $<
+ $(CC) -c $(ALL_ASFLAGS) $< -o $@
+
+
+# Create preprocessed source for use in sending a bug report.
+%.i : %.c
+ $(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@
+
+
+# Target: clean project.
+clean: begin clean_list end
+
+clean_list :
+ @echo
+ @echo $(MSG_CLEANING)
+ $(REMOVE) $(TARGET).hex
+ $(REMOVE) $(TARGET).eep
+ $(REMOVE) $(TARGET).cof
+ $(REMOVE) $(TARGET).elf
+ $(REMOVE) $(TARGET).map
+ $(REMOVE) $(TARGET).sym
+ $(REMOVE) $(TARGET).lss
+ $(REMOVE) $(SRC:%.c=$(OBJDIR)/%.o)
+ $(REMOVE) $(SRC:%.c=$(OBJDIR)/%.lst)
+ $(REMOVE) $(SRC:.c=.s)
+ $(REMOVE) $(SRC:.c=.d)
+ $(REMOVE) $(SRC:.c=.i)
+ $(REMOVEDIR) .dep
+
+
+# Create object files directory
+$(shell mkdir $(OBJDIR) 2>/dev/null)
+
+
+# Include the dependency files.
+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
+
+
+# Listing of phony targets.
+.PHONY : all begin finish end sizebefore sizeafter gccversion \
+build elf hex eep lss sym coff extcoff \
+clean clean_list program debug gdb-config
diff --git a/src/lib-other/pjrc/usb_keyboard/example.c b/src/lib-other/pjrc/usb_keyboard/example.c
new file mode 100644
index 0000000..9e090ba
--- /dev/null
+++ b/src/lib-other/pjrc/usb_keyboard/example.c
@@ -0,0 +1,124 @@
+/* Keyboard example for Teensy USB Development Board
+ * http://www.pjrc.com/teensy/usb_keyboard.html
+ * Copyright (c) 2008 PJRC.COM, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include
+#include
+#include
+#include
+#include "usb_keyboard.h"
+
+#define LED_CONFIG (DDRD |= (1<<6))
+#define LED_ON (PORTD &= ~(1<<6))
+#define LED_OFF (PORTD |= (1<<6))
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+
+uint8_t number_keys[10]=
+ {KEY_0,KEY_1,KEY_2,KEY_3,KEY_4,KEY_5,KEY_6,KEY_7,KEY_8,KEY_9};
+
+uint16_t idle_count=0;
+
+int main(void)
+{
+ uint8_t b, d, mask, i, reset_idle;
+ uint8_t b_prev=0xFF, d_prev=0xFF;
+
+ // set for 16 MHz clock
+ CPU_PRESCALE(0);
+
+ // Configure all port B and port D pins as inputs with pullup resistors.
+ // See the "Using I/O Pins" page for details.
+ // http://www.pjrc.com/teensy/pins.html
+ DDRD = 0x00;
+ DDRB = 0x00;
+ PORTB = 0xFF;
+ PORTD = 0xFF;
+
+ // Initialize the USB, and then wait for the host to set configuration.
+ // If the Teensy is powered without a PC connected to the USB port,
+ // this will wait forever.
+ usb_init();
+ while (!usb_configured()) /* wait */ ;
+
+ // Wait an extra second for the PC's operating system to load drivers
+ // and do whatever it does to actually be ready for input
+ _delay_ms(1000);
+
+ // Configure timer 0 to generate a timer overflow interrupt every
+ // 256*1024 clock cycles, or approx 61 Hz when using 16 MHz clock
+ // This demonstrates how to use interrupts to implement a simple
+ // inactivity timeout.
+ TCCR0A = 0x00;
+ TCCR0B = 0x05;
+ TIMSK0 = (1< 61 * 8) {
+ idle_count = 0;
+ usb_keyboard_press(KEY_SPACE, 0);
+ }
+}
+
+
diff --git a/src/lib-other/pjrc/usb_keyboard/usb_keyboard.c b/src/lib-other/pjrc/usb_keyboard/usb_keyboard.c
new file mode 100644
index 0000000..1501f2a
--- /dev/null
+++ b/src/lib-other/pjrc/usb_keyboard/usb_keyboard.c
@@ -0,0 +1,593 @@
+/* USB Keyboard Example for Teensy USB Development Board
+ * http://www.pjrc.com/teensy/usb_keyboard.html
+ * Copyright (c) 2009 PJRC.COM, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// Version 1.0: Initial Release
+// Version 1.1: Add support for Teensy 2.0
+
+#define USB_SERIAL_PRIVATE_INCLUDE
+#include "usb_keyboard.h"
+
+/**************************************************************************
+ *
+ * Configurable Options
+ *
+ **************************************************************************/
+
+// You can change these to give your code its own name.
+#define STR_MANUFACTURER L"MfgName"
+#define STR_PRODUCT L"Keyboard"
+
+
+// Mac OS-X and Linux automatically load the correct drivers. On
+// Windows, even though the driver is supplied by Microsoft, an
+// INF file is needed to load the driver. These numbers need to
+// match the INF file.
+#define VENDOR_ID 0x16C0
+#define PRODUCT_ID 0x047C
+
+
+// USB devices are supposed to implment a halt feature, which is
+// rarely (if ever) used. If you comment this line out, the halt
+// code will be removed, saving 102 bytes of space (gcc 4.3.0).
+// This is not strictly USB compliant, but works with all major
+// operating systems.
+#define SUPPORT_ENDPOINT_HALT
+
+
+
+/**************************************************************************
+ *
+ * Endpoint Buffer Configuration
+ *
+ **************************************************************************/
+
+#define ENDPOINT0_SIZE 32
+
+#define KEYBOARD_INTERFACE 0
+#define KEYBOARD_ENDPOINT 3
+#define KEYBOARD_SIZE 8
+#define KEYBOARD_BUFFER EP_DOUBLE_BUFFER
+
+static const uint8_t PROGMEM endpoint_config_table[] = {
+ 0,
+ 0,
+ 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(KEYBOARD_SIZE) | KEYBOARD_BUFFER,
+ 0
+};
+
+
+/**************************************************************************
+ *
+ * Descriptor Data
+ *
+ **************************************************************************/
+
+// Descriptors are the data that your computer reads when it auto-detects
+// this USB device (called "enumeration" in USB lingo). The most commonly
+// changed items are editable at the top of this file. Changing things
+// in here should only be done by those who've read chapter 9 of the USB
+// spec and relevant portions of any USB class specifications!
+
+
+static uint8_t PROGMEM device_descriptor[] = {
+ 18, // bLength
+ 1, // bDescriptorType
+ 0x00, 0x02, // bcdUSB
+ 0, // bDeviceClass
+ 0, // bDeviceSubClass
+ 0, // bDeviceProtocol
+ ENDPOINT0_SIZE, // bMaxPacketSize0
+ LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
+ LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct
+ 0x00, 0x01, // bcdDevice
+ 1, // iManufacturer
+ 2, // iProduct
+ 0, // iSerialNumber
+ 1 // bNumConfigurations
+};
+
+// Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60
+static uint8_t PROGMEM keyboard_hid_report_desc[] = {
+ 0x05, 0x01, // Usage Page (Generic Desktop),
+ 0x09, 0x06, // Usage (Keyboard),
+ 0xA1, 0x01, // Collection (Application),
+ 0x75, 0x01, // Report Size (1),
+ 0x95, 0x08, // Report Count (8),
+ 0x05, 0x07, // Usage Page (Key Codes),
+ 0x19, 0xE0, // Usage Minimum (224),
+ 0x29, 0xE7, // Usage Maximum (231),
+ 0x15, 0x00, // Logical Minimum (0),
+ 0x25, 0x01, // Logical Maximum (1),
+ 0x81, 0x02, // Input (Data, Variable, Absolute), ;Modifier byte
+ 0x95, 0x01, // Report Count (1),
+ 0x75, 0x08, // Report Size (8),
+ 0x81, 0x03, // Input (Constant), ;Reserved byte
+ 0x95, 0x05, // Report Count (5),
+ 0x75, 0x01, // Report Size (1),
+ 0x05, 0x08, // Usage Page (LEDs),
+ 0x19, 0x01, // Usage Minimum (1),
+ 0x29, 0x05, // Usage Maximum (5),
+ 0x91, 0x02, // Output (Data, Variable, Absolute), ;LED report
+ 0x95, 0x01, // Report Count (1),
+ 0x75, 0x03, // Report Size (3),
+ 0x91, 0x03, // Output (Constant), ;LED report padding
+ 0x95, 0x06, // Report Count (6),
+ 0x75, 0x08, // Report Size (8),
+ 0x15, 0x00, // Logical Minimum (0),
+ 0x25, 0x68, // Logical Maximum(104),
+ 0x05, 0x07, // Usage Page (Key Codes),
+ 0x19, 0x00, // Usage Minimum (0),
+ 0x29, 0x68, // Usage Maximum (104),
+ 0x81, 0x00, // Input (Data, Array),
+ 0xc0 // End Collection
+};
+
+#define CONFIG1_DESC_SIZE (9+9+9+7)
+#define KEYBOARD_HID_DESC_OFFSET (9+9)
+static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
+ // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
+ 9, // bLength;
+ 2, // bDescriptorType;
+ LSB(CONFIG1_DESC_SIZE), // wTotalLength
+ MSB(CONFIG1_DESC_SIZE),
+ 1, // bNumInterfaces
+ 1, // bConfigurationValue
+ 0, // iConfiguration
+ 0xC0, // bmAttributes
+ 50, // bMaxPower
+ // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
+ 9, // bLength
+ 4, // bDescriptorType
+ KEYBOARD_INTERFACE, // bInterfaceNumber
+ 0, // bAlternateSetting
+ 1, // bNumEndpoints
+ 0x03, // bInterfaceClass (0x03 = HID)
+ 0x01, // bInterfaceSubClass (0x01 = Boot)
+ 0x01, // bInterfaceProtocol (0x01 = Keyboard)
+ 0, // iInterface
+ // HID interface descriptor, HID 1.11 spec, section 6.2.1
+ 9, // bLength
+ 0x21, // bDescriptorType
+ 0x11, 0x01, // bcdHID
+ 0, // bCountryCode
+ 1, // bNumDescriptors
+ 0x22, // bDescriptorType
+ sizeof(keyboard_hid_report_desc), // wDescriptorLength
+ 0,
+ // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
+ 7, // bLength
+ 5, // bDescriptorType
+ KEYBOARD_ENDPOINT | 0x80, // bEndpointAddress
+ 0x03, // bmAttributes (0x03=intr)
+ KEYBOARD_SIZE, 0, // wMaxPacketSize
+ 1 // bInterval
+};
+
+// If you're desperate for a little extra code memory, these strings
+// can be completely removed if iManufacturer, iProduct, iSerialNumber
+// in the device desciptor are changed to zeros.
+struct usb_string_descriptor_struct {
+ uint8_t bLength;
+ uint8_t bDescriptorType;
+ int16_t wString[];
+};
+static struct usb_string_descriptor_struct PROGMEM string0 = {
+ 4,
+ 3,
+ {0x0409}
+};
+static struct usb_string_descriptor_struct PROGMEM string1 = {
+ sizeof(STR_MANUFACTURER),
+ 3,
+ STR_MANUFACTURER
+};
+static struct usb_string_descriptor_struct PROGMEM string2 = {
+ sizeof(STR_PRODUCT),
+ 3,
+ STR_PRODUCT
+};
+
+// This table defines which descriptor data is sent for each specific
+// request from the host (in wValue and wIndex).
+static struct descriptor_list_struct {
+ uint16_t wValue;
+ uint16_t wIndex;
+ const uint8_t *addr;
+ uint8_t length;
+} PROGMEM descriptor_list[] = {
+ {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
+ {0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
+ {0x2200, KEYBOARD_INTERFACE, keyboard_hid_report_desc, sizeof(keyboard_hid_report_desc)},
+ {0x2100, KEYBOARD_INTERFACE, config1_descriptor+KEYBOARD_HID_DESC_OFFSET, 9},
+ {0x0300, 0x0000, (const uint8_t *)&string0, 4},
+ {0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
+ {0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)}
+};
+#define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
+
+
+/**************************************************************************
+ *
+ * Variables - these are the only non-stack RAM usage
+ *
+ **************************************************************************/
+
+// zero when we are not configured, non-zero when enumerated
+static volatile uint8_t usb_configuration=0;
+
+// which modifier keys are currently pressed
+// 1=left ctrl, 2=left shift, 4=left alt, 8=left gui
+// 16=right ctrl, 32=right shift, 64=right alt, 128=right gui
+uint8_t keyboard_modifier_keys=0;
+
+// which keys are currently pressed, up to 6 keys may be down at once
+uint8_t keyboard_keys[6]={0,0,0,0,0,0};
+
+// protocol setting from the host. We use exactly the same report
+// either way, so this variable only stores the setting since we
+// are required to be able to report which setting is in use.
+static uint8_t keyboard_protocol=1;
+
+// the idle configuration, how often we send the report to the
+// host (ms * 4) even when it hasn't changed
+static uint8_t keyboard_idle_config=125;
+
+// count until idle timeout
+static uint8_t keyboard_idle_count=0;
+
+// 1=num lock, 2=caps lock, 4=scroll lock, 8=compose, 16=kana
+volatile uint8_t keyboard_leds=0;
+
+
+/**************************************************************************
+ *
+ * Public Functions - these are the API intended for the user
+ *
+ **************************************************************************/
+
+
+// initialize USB
+void usb_init(void)
+{
+ HW_CONFIG();
+ USB_FREEZE(); // enable USB
+ PLL_CONFIG(); // config PLL
+ while (!(PLLCSR & (1<= NUM_DESC_LIST) {
+ UECONX = (1< desc_length) len = desc_length;
+ do {
+ // wait for host ready for IN packet
+ do {
+ i = UEINTX;
+ } while (!(i & ((1<= 1 && i <= MAX_ENDPOINT) {
+ usb_send_in();
+ UENUM = i;
+ if (bRequest == SET_FEATURE) {
+ UECONX = (1<> 8);
+ keyboard_idle_count = 0;
+ usb_send_in();
+ return;
+ }
+ if (bRequest == HID_SET_PROTOCOL) {
+ keyboard_protocol = wValue;
+ usb_send_in();
+ return;
+ }
+ }
+ }
+ }
+ UECONX = (1<
+
+void usb_init(void); // initialize everything
+uint8_t usb_configured(void); // is the USB port configured
+
+int8_t usb_keyboard_press(uint8_t key, uint8_t modifier);
+int8_t usb_keyboard_send(void);
+extern uint8_t keyboard_modifier_keys;
+extern uint8_t keyboard_keys[6];
+extern volatile uint8_t keyboard_leds;
+
+// This file does not include the HID debug functions, so these empty
+// macros replace them with nothing, so users can compile code that
+// has calls to these functions.
+#define usb_debug_putchar(c)
+#define usb_debug_flush_output()
+
+
+#if 0 // removed in favor of equilivent code elsewhere ::Ben Blazak, 2012::
+
+#define KEY_CTRL 0x01
+#define KEY_SHIFT 0x02
+#define KEY_ALT 0x04
+#define KEY_GUI 0x08
+#define KEY_LEFT_CTRL 0x01
+#define KEY_LEFT_SHIFT 0x02
+#define KEY_LEFT_ALT 0x04
+#define KEY_LEFT_GUI 0x08
+#define KEY_RIGHT_CTRL 0x10
+#define KEY_RIGHT_SHIFT 0x20
+#define KEY_RIGHT_ALT 0x40
+#define KEY_RIGHT_GUI 0x80
+
+#define KEY_A 4
+#define KEY_B 5
+#define KEY_C 6
+#define KEY_D 7
+#define KEY_E 8
+#define KEY_F 9
+#define KEY_G 10
+#define KEY_H 11
+#define KEY_I 12
+#define KEY_J 13
+#define KEY_K 14
+#define KEY_L 15
+#define KEY_M 16
+#define KEY_N 17
+#define KEY_O 18
+#define KEY_P 19
+#define KEY_Q 20
+#define KEY_R 21
+#define KEY_S 22
+#define KEY_T 23
+#define KEY_U 24
+#define KEY_V 25
+#define KEY_W 26
+#define KEY_X 27
+#define KEY_Y 28
+#define KEY_Z 29
+#define KEY_1 30
+#define KEY_2 31
+#define KEY_3 32
+#define KEY_4 33
+#define KEY_5 34
+#define KEY_6 35
+#define KEY_7 36
+#define KEY_8 37
+#define KEY_9 38
+#define KEY_0 39
+#define KEY_ENTER 40
+#define KEY_ESC 41
+#define KEY_BACKSPACE 42
+#define KEY_TAB 43
+#define KEY_SPACE 44
+#define KEY_MINUS 45
+#define KEY_EQUAL 46
+#define KEY_LEFT_BRACE 47
+#define KEY_RIGHT_BRACE 48
+#define KEY_BACKSLASH 49
+#define KEY_NUMBER 50
+#define KEY_SEMICOLON 51
+#define KEY_QUOTE 52
+#define KEY_TILDE 53
+#define KEY_COMMA 54
+#define KEY_PERIOD 55
+#define KEY_SLASH 56
+#define KEY_CAPS_LOCK 57
+#define KEY_F1 58
+#define KEY_F2 59
+#define KEY_F3 60
+#define KEY_F4 61
+#define KEY_F5 62
+#define KEY_F6 63
+#define KEY_F7 64
+#define KEY_F8 65
+#define KEY_F9 66
+#define KEY_F10 67
+#define KEY_F11 68
+#define KEY_F12 69
+#define KEY_PRINTSCREEN 70
+#define KEY_SCROLL_LOCK 71
+#define KEY_PAUSE 72
+#define KEY_INSERT 73
+#define KEY_HOME 74
+#define KEY_PAGE_UP 75
+#define KEY_DELETE 76
+#define KEY_END 77
+#define KEY_PAGE_DOWN 78
+#define KEY_RIGHT 79
+#define KEY_LEFT 80
+#define KEY_DOWN 81
+#define KEY_UP 82
+#define KEY_NUM_LOCK 83
+#define KEYPAD_SLASH 84
+#define KEYPAD_ASTERIX 85
+#define KEYPAD_MINUS 86
+#define KEYPAD_PLUS 87
+#define KEYPAD_ENTER 88
+#define KEYPAD_1 89
+#define KEYPAD_2 90
+#define KEYPAD_3 91
+#define KEYPAD_4 92
+#define KEYPAD_5 93
+#define KEYPAD_6 94
+#define KEYPAD_7 95
+#define KEYPAD_8 96
+#define KEYPAD_9 97
+#define KEYPAD_0 98
+#define KEYPAD_PERIOD 99
+
+#endif
+
+
+
+
+// Everything below this point is only intended for usb_serial.c
+#ifdef USB_SERIAL_PRIVATE_INCLUDE
+#include
+#include
+#include
+
+#define EP_TYPE_CONTROL 0x00
+#define EP_TYPE_BULK_IN 0x81
+#define EP_TYPE_BULK_OUT 0x80
+#define EP_TYPE_INTERRUPT_IN 0xC1
+#define EP_TYPE_INTERRUPT_OUT 0xC0
+#define EP_TYPE_ISOCHRONOUS_IN 0x41
+#define EP_TYPE_ISOCHRONOUS_OUT 0x40
+
+#define EP_SINGLE_BUFFER 0x02
+#define EP_DOUBLE_BUFFER 0x06
+
+#define EP_SIZE(s) ((s) == 64 ? 0x30 : \
+ ((s) == 32 ? 0x20 : \
+ ((s) == 16 ? 0x10 : \
+ 0x00)))
+
+#define MAX_ENDPOINT 4
+
+#define LSB(n) (n & 255)
+#define MSB(n) ((n >> 8) & 255)
+
+#if defined(__AVR_AT90USB162__)
+#define HW_CONFIG()
+#define PLL_CONFIG() (PLLCSR = ((1<
+Released under The MIT License (MIT) (see "license.md")
+Project located at
+
diff --git a/src/lib/data-types.h b/src/lib/data-types.h
new file mode 100644
index 0000000..453dca1
--- /dev/null
+++ b/src/lib/data-types.h
@@ -0,0 +1,21 @@
+/* ----------------------------------------------------------------------------
+ * Common data types
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#ifndef DATA_TYPES_h
+ #define DATA_TYPES_h
+
+ #include
+ #include
+
+ #define bool _Bool
+ #define true ((bool)1)
+ #define false ((bool)0)
+
+#endif
+
diff --git a/src/lib/teensy-2-0/twi.c b/src/lib/teensy-2-0/twi.c
new file mode 100644
index 0000000..1492d9c
--- /dev/null
+++ b/src/lib/teensy-2-0/twi.c
@@ -0,0 +1,83 @@
+/* ----------------------------------------------------------------------------
+ * Very simple Teensy 2.0 TWI library : code
+ *
+ * - This is mostly straight from the datasheet, section 20.6.6, figure 20-11
+ * (the code example in C), and section 20.8.1, figure 20-12
+ * - Also see the documentation for `` at
+ *
+ * Some other (more complete) TWI libraries for the Teensy 2.0 (and other Amtel
+ * processors):
+ * - [i2cmaster] (http://homepage.hispeed.ch/peterfleury/i2cmaster.zip)
+ * - written by [peter-fleury] (http://homepage.hispeed.ch/peterfleury/)
+ * - [the arduino twi library] (https://github.com/arduino/Arduino/tree/master/libraries/Wire/utility)
+ * - look for an older version if you need one that doesn't depend on all the
+ * other Arduino stuff
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include //dbg
+#include
+
+#include "twi.h"
+
+
+void twi_init(void) {
+ // set the prescaler value to 0
+ TWSR &= ~( (1<
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#ifndef TWI_h
+ #define TWI_h
+
+ #ifndef TWI_FREQ
+ #define TWI_FREQ 100000 // in Hz
+ #endif
+
+
+ void twi_init(void);
+ uint8_t twi_start(void);
+ void twi_stop(void);
+ uint8_t twi_send(uint8_t data);
+ uint8_t twi_read(uint8_t * data);
+
+#endif
+
diff --git a/src/lib/teensy-2-0/twi.md b/src/lib/teensy-2-0/twi.md
new file mode 100644
index 0000000..49c2126
--- /dev/null
+++ b/src/lib/teensy-2-0/twi.md
@@ -0,0 +1,30 @@
+# Documentation : Teensy 2.0 I²C
+
+## I²C Status Codes (for Master modes)
+
+### Master Transmitter (datasheet section 20.8.1, table 20-3)
+
+* `0x08` A START condition has been transmitted
+* `0x10` A repeated START condition has been transmitted
+* `0x18` SLA+W has been transmitted; ACK has been received
+* `0x20` SLA+W has been transmitted; NOT ACK has been received
+* `0x28` Data byte has been transmitted; ACK has been received
+* `0x30` Data byte has been transmitted; NOT ACK has been received
+* `0x38` Arbitration lost in SLA+W or data bytes
+
+### Master Receiver (datasheet section 20.8.2, table 20-4)
+
+* `0x08` A START condition has been transmitted
+* `0x10` A repeated START condition has been transmitted
+* `0x38` Arbitration lost in SLA+R or NOT ACK bit
+* `0x40` SLA+R has been transmitted; ACK has been received
+* `0x48` SLA+R has been transmitted; NOT ACK has been received
+* `0x50` Data byte has been received; ACK has been returned
+* `0x58` Data byte has been received; NOT ACK has been returned
+
+-------------------------------------------------------------------------------
+
+Copyright © 2012 Ben Blazak
+Released under The MIT License (MIT) (see "license.md")
+Project located at
+
diff --git a/src/lib/usb/keyboard-usage-page.h b/src/lib/usb/keyboard-usage-page.h
new file mode 100644
index 0000000..8f429b1
--- /dev/null
+++ b/src/lib/usb/keyboard-usage-page.h
@@ -0,0 +1,264 @@
+/* ----------------------------------------------------------------------------
+ * USB Keyboard Key Codes (usage page 0x07)
+ *
+ * Taken from [the HID Usage Tables pdf][1], Section 10,
+ * which can be found on [the HID Page][2] at
+ *
+ * - `Boot Keyboard Req.` indicates that the usage code is one that should be
+ * supported by the listed types of keyboards (104-key, ...) on boot
+ *
+ * - `KEY_` indicates a Keyboard key
+ * - `KEYPAD_` indicates a Keypad key
+ * - Multiple names concatenated in CamelCase indicate a single value
+ * - Multiple names separated by `_`s indicate shifted or alternate values
+ *
+ * [1]: http://www.usb.org/developers/devclass_docs/Hut1_12v2.pdf
+ * [2]: http://www.usb.org/developers/hidpage
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+// Name ID // PC Mac Unix Boot Keyboard Req.
+// --------------------------- ---- -- --- ---- ---------------------
+
+// (Reserved) 0x00 // √ √ √ 84/101/104
+
+#define KEY_ErrorRollOver 0x01 // √ √ √ 84/101/104
+#define KEY_POSTFail 0x02 // √ √ √ 84/101/104
+#define KEY_ErrorUndefined 0x03 // √ √ √ 84/101/104
+#define KEY_a_A 0x04 // √ √ √ 84/101/104
+#define KEY_b_B 0x05 // √ √ √ 84/101/104
+#define KEY_c_C 0x06 // √ √ √ 84/101/104
+#define KEY_d_D 0x07 // √ √ √ 84/101/104
+#define KEY_e_E 0x08 // √ √ √ 84/101/104
+#define KEY_f_F 0x09 // √ √ √ 84/101/104
+#define KEY_g_G 0x0A // √ √ √ 84/101/104
+#define KEY_h_H 0x0B // √ √ √ 84/101/104
+#define KEY_i_I 0x0C // √ √ √ 84/101/104
+#define KEY_j_J 0x0D // √ √ √ 84/101/104
+#define KEY_k_K 0x0E // √ √ √ 84/101/104
+#define KEY_l_L 0x0F // √ √ √ 84/101/104
+#define KEY_m_M 0x10 // √ √ √ 84/101/104
+#define KEY_n_N 0x11 // √ √ √ 84/101/104
+#define KEY_o_O 0x12 // √ √ √ 84/101/104
+#define KEY_p_P 0x13 // √ √ √ 84/101/104
+#define KEY_q_Q 0x14 // √ √ √ 84/101/104
+#define KEY_r_R 0x15 // √ √ √ 84/101/104
+#define KEY_s_S 0x16 // √ √ √ 84/101/104
+#define KEY_t_T 0x17 // √ √ √ 84/101/104
+#define KEY_u_U 0x18 // √ √ √ 84/101/104
+#define KEY_v_V 0x19 // √ √ √ 84/101/104
+#define KEY_w_W 0x1A // √ √ √ 84/101/104
+#define KEY_x_X 0x1B // √ √ √ 84/101/104
+#define KEY_y_Y 0x1C // √ √ √ 84/101/104
+#define KEY_z_Z 0x1D // √ √ √ 84/101/104
+#define KEY_1_Exclamation 0x1E // √ √ √ 84/101/104
+#define KEY_2_At 0x1F // √ √ √ 84/101/104
+#define KEY_3_Pound 0x20 // √ √ √ 84/101/104
+#define KEY_4_Dollar 0x21 // √ √ √ 84/101/104
+#define KEY_5_Percent 0x22 // √ √ √ 84/101/104
+#define KEY_6_Caret 0x23 // √ √ √ 84/101/104
+#define KEY_7_Ampersand 0x24 // √ √ √ 84/101/104
+#define KEY_8_Asterisk 0x25 // √ √ √ 84/101/104
+#define KEY_9_LeftParenthesis 0x26 // √ √ √ 84/101/104
+#define KEY_0_RightParenthesis 0x27 // √ √ √ 84/101/104
+#define KEY_ReturnEnter 0x28 // √ √ √ 84/101/104
+#define KEY_Escape 0x29 // √ √ √ 84/101/104
+#define KEY_DeleteBackspace 0x2A // √ √ √ 84/101/104
+#define KEY_Tab 0x2B // √ √ √ 84/101/104
+#define KEY_Spacebar 0x2C // √ √ √ 84/101/104
+#define KEY_Dash_Underscore 0x2D // √ √ √ 84/101/104
+#define KEY_Equal_Plus 0x2E // √ √ √ 84/101/104
+#define KEY_LeftBracket_LeftBrace 0x2F // √ √ √ 84/101/104
+#define KEY_RightBracket_RightBrace 0x30 // √ √ √ 84/101/104
+#define KEY_Backslash_Pipe 0x31 // √ √ √ 84/101/104
+#define KEY_NonUS_Pound_Tilde 0x32 // √ √ √ 84/101/104
+#define KEY_Semicolon_Colon 0x33 // √ √ √ 84/101/104
+#define KEY_SingleQuote_DoubleQuote 0x34 // √ √ √ 84/101/104
+#define KEY_GraveAccent_Tilde 0x35 // √ √ √ 84/101/104
+#define KEY_Comma_LessThan 0x36 // √ √ √ 84/101/104
+#define KEY_Period_GreaterThan 0x37 // √ √ √ 84/101/104
+#define KEY_Slash_Question 0x38 // √ √ √ 84/101/104
+#define KEY_CapsLock 0x39 // √ √ √ 84/101/104
+#define KEY_F1 0x3A // √ √ √ 84/101/104
+#define KEY_F2 0x3B // √ √ √ 84/101/104
+#define KEY_F3 0x3C // √ √ √ 84/101/104
+#define KEY_F4 0x3D // √ √ √ 84/101/104
+#define KEY_F5 0x3E // √ √ √ 84/101/104
+#define KEY_F6 0x3F // √ √ √ 84/101/104
+#define KEY_F7 0x40 // √ √ √ 84/101/104
+#define KEY_F8 0x41 // √ √ √ 84/101/104
+#define KEY_F9 0x42 // √ √ √ 84/101/104
+#define KEY_F10 0x43 // √ √ √ 84/101/104
+#define KEY_F11 0x44 // √ √ √ 101/104
+#define KEY_F12 0x45 // √ √ √ 101/104
+#define KEY_PrintScreen 0x46 // √ √ √ 101/104
+#define KEY_ScrollLock 0x47 // √ √ √ 84/101/104
+#define KEY_Pause 0x48 // √ √ √ 101/104
+#define KEY_Insert 0x49 // √ √ √ 101/104
+#define KEY_Home 0x4A // √ √ √ 101/104
+#define KEY_PageUp 0x4B // √ √ √ 101/104
+#define KEY_DeleteForward 0x4C // √ √ √ 101/104
+#define KEY_End 0x4D // √ √ √ 101/104
+#define KEY_PageDown 0x4E // √ √ √ 101/104
+#define KEY_RightArrow 0x4F // √ √ √ 101/104
+#define KEY_LeftArrow 0x50 // √ √ √ 101/104
+#define KEY_DownArrow 0x51 // √ √ √ 101/104
+#define KEY_UpArrow 0x52 // √ √ √ 101/104
+
+#define KEYPAD_NumLock_Clear 0x53 // √ √ √ 101/104
+#define KEYPAD_Slash 0x54 // √ √ √ 101/104
+#define KEYPAD_Asterisk 0x55 // √ √ √ 84/101/104
+#define KEYPAD_Minus 0x56 // √ √ √ 84/101/104
+#define KEYPAD_Plus 0x57 // √ √ √ 84/101/104
+#define KEYPAD_ENTER 0x58 // √ √ √ 101/104
+#define KEYPAD_1_End 0x59 // √ √ √ 84/101/104
+#define KEYPAD_2_DownArrow 0x5A // √ √ √ 84/101/104
+#define KEYPAD_3_PageDown 0x5B // √ √ √ 84/101/104
+#define KEYPAD_4_LeftArrow 0x5C // √ √ √ 84/101/104
+#define KEYPAD_5 0x5D // √ √ √ 84/101/104
+#define KEYPAD_6_RightArrow 0x5E // √ √ √ 84/101/104
+#define KEYPAD_7_Home 0x5F // √ √ √ 84/101/104
+#define KEYPAD_8_UpArrow 0x60 // √ √ √ 84/101/104
+#define KEYPAD_9_PageUp 0x61 // √ √ √ 84/101/104
+#define KEYPAD_0_Insert 0x62 // √ √ √ 84/101/104
+#define KEYPAD_Period_Delete 0x63 // √ √ √ 84/101/104
+
+#define KEY_NonUS_Backslash_Pipe 0x64 // √ √ √ 84/101/104
+#define KEY_Application 0x65 // √ - √ 104
+#define KEY_Power 0x66 // - √ √ -
+
+#define KEYPAD_Equal 0x67 // - √ - -
+
+#define KEY_F13 0x68 // - √ - -
+#define KEY_F14 0x69 // - √ - -
+#define KEY_F15 0x6A // - √ - -
+#define KEY_F16 0x6B // - - - -
+#define KEY_F17 0x6C // - - - -
+#define KEY_F18 0x6D // - - - -
+#define KEY_F19 0x6E // - - - -
+#define KEY_F20 0x6F // - - - -
+#define KEY_F21 0x70 // - - - -
+#define KEY_F22 0x71 // - - - -
+#define KEY_F23 0x72 // - - - -
+#define KEY_F24 0x73 // - - - -
+#define KEY_Execute 0x74 // - - √ -
+#define KEY_Help 0x75 // - - √ -
+#define KEY_Menu 0x76 // - - √ -
+#define KEY_Select 0x77 // - - √ -
+#define KEY_Stop 0x78 // - - √ -
+#define KEY_Again 0x79 // - - √ -
+#define KEY_Undo 0x7A // - - √ -
+#define KEY_Cut 0x7B // - - √ -
+#define KEY_Copy 0x7C // - - √ -
+#define KEY_Paste 0x7D // - - √ -
+#define KEY_Find 0x7E // - - √ -
+#define KEY_Mute 0x7F // - - √ -
+#define KEY_VolumeUp 0x80 // - - √ -
+#define KEY_VolumeDown 0x81 // - - √ -
+#define KEY_LockingCapsLock 0x82 // - - √ -
+#define KEY_LockingNumLock 0x83 // - - √ -
+#define KEY_LockingScrollLock 0x84 // - - √ -
+
+#define KEYPAD_Comma 0x85 // - - - -
+#define KEYPAD_EqualSign 0x86 // - - - -
+
+#define KEY_International1 0x87 // - - - -
+#define KEY_International2 0x88 // - - - -
+#define KEY_International3 0x89 // - - - -
+#define KEY_International4 0x8A // - - - -
+#define KEY_International5 0x8B // - - - -
+#define KEY_International6 0x8C // - - - -
+#define KEY_International7 0x8D // - - - -
+#define KEY_International8 0x8E // - - - -
+#define KEY_International9 0x8F // - - - -
+#define KEY_LANG1 0x90 // - - - -
+#define KEY_LANG2 0x91 // - - - -
+#define KEY_LANG3 0x92 // - - - -
+#define KEY_LANG4 0x93 // - - - -
+#define KEY_LANG5 0x94 // - - - -
+#define KEY_LANG6 0x95 // - - - -
+#define KEY_LANG7 0x96 // - - - -
+#define KEY_LANG8 0x97 // - - - -
+#define KEY_LANG9 0x98 // - - - -
+#define KEY_AlternateErase 0x99 // - - - -
+#define KEY_SysReq_Attention 0x9A // - - - -
+#define KEY_Cancel 0x9B // - - - -
+#define KEY_Clear 0x9C // - - - -
+#define KEY_Prior 0x9D // - - - -
+#define KEY_Return 0x9E // - - - -
+#define KEY_Separator 0x9F // - - - -
+#define KEY_Out 0xA0 // - - - -
+#define KEY_Oper 0xA1 // - - - -
+#define KEY_Clear_Again 0xA2 // - - - -
+#define KEY_CrSel_Props 0xA3 // - - - -
+#define KEY_ExSel 0xA4 // - - - -
+
+// (Reserved) 0xA5..0xAF // - - - -
+
+#define KEYPAD_00 0xB0 // - - - -
+#define KEYPAD_000 0xB1 // - - - -
+
+#define KEY_ThousandsSeparator 0xB2 // - - - -
+#define KEY_DecimalSeparator 0xB3 // - - - -
+#define KEY_CurrencyUnit 0xB4 // - - - -
+#define KEY_CurrencySubunit 0xB5 // - - - -
+
+#define KEYPAD_LeftParenthesis 0xB6 // - - - -
+#define KEYPAD_RightParenthesis 0xB7 // - - - -
+#define KEYPAD_LeftBrace 0xB8 // - - - -
+#define KEYPAD_RightBrace 0xB9 // - - - -
+
+#define KEYPAD_Tab 0xBA // - - - -
+#define KEYPAD_Backspace 0xBB // - - - -
+#define KEYPAD_A 0xBC // - - - -
+#define KEYPAD_B 0xBD // - - - -
+#define KEYPAD_C 0xBE // - - - -
+#define KEYPAD_D 0xBF // - - - -
+#define KEYPAD_E 0xC0 // - - - -
+#define KEYPAD_F 0xC1 // - - - -
+#define KEYPAD_XOR 0xC2 // - - - -
+#define KEYPAD_Caret 0xC3 // - - - -
+#define KEYPAD_Percent 0xC4 // - - - -
+#define KEYPAD_LessThan 0xC5 // - - - -
+#define KEYPAD_GreaterThan 0xC6 // - - - -
+#define KEYPAD_Ampersand 0xC7 // - - - -
+#define KEYPAD_AmpersandAmpersand 0xC8 // - - - -
+#define KEYPAD_Pipe 0xC9 // - - - -
+#define KEYPAD_PipePipe 0xCA // - - - -
+#define KEYPAD_Colon 0xCB // - - - -
+#define KEYPAD_Pound 0xCC // - - - -
+#define KEYPAD_Space 0xCD // - - - -
+#define KEYPAD_At 0xCE // - - - -
+#define KEYPAD_Exclamation 0xCF // - - - -
+#define KEYPAD_MemoryStore 0xD0 // - - - -
+#define KEYPAD_MemoryRecall 0xD1 // - - - -
+#define KEYPAD_MemoryClear 0xD2 // - - - -
+#define KEYPAD_MemoryAdd 0xD3 // - - - -
+#define KEYPAD_MemorySubtract 0xD4 // - - - -
+#define KEYPAD_MemoryMultiply 0xD5 // - - - -
+#define KEYPAD_MemoryDivide 0xD6 // - - - -
+#define KEYPAD_PlusMinux 0xD7 // - - - -
+#define KEYPAD_Clear 0xD8 // - - - -
+#define KEYPAD_ClearEntry 0xD9 // - - - -
+#define KEYPAD_Binary 0xDA // - - - -
+#define KEYPAD_Octal 0xDB // - - - -
+#define KEYPAD_Decimal 0xDC // - - - -
+#define KEYPAD_Hexadecimal 0xDD // - - - -
+
+// (Reserved) 0xDE..0xDF // - - - -
+
+#define KEY_LeftControl 0xE0 // √ √ √ 84/101/104
+#define KEY_LeftShift 0xE1 // √ √ √ 84/101/104
+#define KEY_LeftAlt 0xE2 // √ √ √ 84/101/104
+#define KEY_LeftGUI 0xE3 // √ √ √ 104
+#define KEY_RightControl 0xE4 // √ √ √ 101/104
+#define KEY_RightShift 0xE5 // √ √ √ 84/101/104
+#define KEY_RightAlt 0xE6 // √ √ √ 101/104
+#define KEY_RightGUI 0xE7 // √ √ √ 104
+
+// (Reserved) 0xE8..0xFFFF // - - - -
+
diff --git a/src/lib/usb/led-usage-page.h b/src/lib/usb/led-usage-page.h
new file mode 100644
index 0000000..45c9754
--- /dev/null
+++ b/src/lib/usb/led-usage-page.h
@@ -0,0 +1,106 @@
+/* ----------------------------------------------------------------------------
+ * USB LED Codes (usage page 0x08)
+ *
+ * Taken from [the HID Usage Tables pdf][1], Section 11,
+ * which can be found on [the HID Page][2] at
+ *
+ * - applicable Usage Types (from Section 3.4)
+ * - OOC : On/Off Control
+ * - Sel : Selector
+ * - DV : Dynamic Value
+ * - US : Usage Switch
+ * - UM : Usage Modifier
+ *
+ * [1]: http://www.usb.org/developers/devclass_docs/Hut1_12v2.pdf
+ * [2]: http://www.usb.org/developers/hidpage
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+// Name ID Usage Type Section of HID Tables
+// --------------------------- ---- ---------- ----------------------
+
+// (Undefined) 0x00 // - -
+
+#define LED_NumLock 0x01 // OOC 11.1
+#define LED_CapsLock 0x02 // OOC 11.1
+#define LED_ScrollLock 0x03 // OOC 11.1
+#define LED_Compose 0x04 // OOC 11.1
+#define LED_Kana 0x05 // OOC 11.1
+#define LED_Power 0x06 // OOC 11.6
+#define LED_Shift 0x07 // OOC 11.1
+#define LED_DoNotDisturb 0x08 // OOC 11.2
+#define LED_Mute 0x09 // OOC 11.3
+#define LED_ToneEnable 0x0A // OOC 11.3
+#define LED_HighCutFilter 0x0B // OOC 11.3
+#define LED_LowCutFilter 0x0C // OOC 11.3
+#define LED_EqualizerEnable 0x0D // OOC 11.3
+#define LED_SoundFieldOn 0x0E // OOC 11.3
+#define LED_SurroundOn 0x0F // OOC 11.3
+#define LED_Repeat 0x10 // OOC 11.3
+#define LED_Stereo 0x11 // OOC 11.3
+#define LED_SamplingRateDetect 0x12 // OOC 11.3
+#define LED_Spinning 0x13 // OOC 11.4
+#define LED_CAV 0x14 // OOC 11.3
+#define LED_CLV 0x15 // OOC 11.3
+#define LED_RecordingFormatDetect 0x16 // OOC 11.4
+#define LED_OffHook 0x17 // OOC 11.2
+#define LED_Ring 0x18 // OOC 11.2
+#define LED_MessageWaiting 0x19 // OOC 11.2
+#define LED_DataMode 0x1A // OOC 11.2
+#define LED_BatteryOperation 0x1B // OOC 11.6
+#define LED_BatteryOK 0x1C // OOC 11.6
+#define LED_BatteryLow 0x1D // OOC 11.6
+#define LED_Speaker 0x1E // OOC 11.2
+#define LED_HeadSet 0x1F // OOC 11.2
+#define LED_Hold 0x20 // OOC 11.2
+#define LED_Microphone 0x21 // OOC 11.2
+#define LED_Coverage 0x22 // OOC 11.2
+#define LED_NightMode 0x23 // OOC 11.2
+#define LED_SendCalls 0x24 // OOC 11.2
+#define LED_CallPickup 0x25 // OOC 11.2
+#define LED_Conference 0x26 // OOC 11.2
+#define LED_Standby 0x27 // OOC 11.6
+#define LED_CameraOn 0x28 // OOC 11.3
+#define LED_CameraOff 0x29 // OOC 11.3
+#define LED_OnLine 0x2A // OOC 11.6
+#define LED_OffLine 0x2B // OOC 11.6
+#define LED_Busy 0x2C // OOC 11.6
+#define LED_Ready 0x2D // OOC 11.6
+#define LED_PaperOut 0x2E // OOC 11.5
+#define LED_PaperJam 0x2F // OOC 11.5
+#define LED_Remote 0x30 // OOC 11.6
+#define LED_Forward 0x31 // OOC 11.4
+#define LED_Reverse 0x32 // OOC 11.4
+#define LED_Stop 0x33 // OOC 11.4
+#define LED_Rewind 0x34 // OOC 11.4
+#define LED_FastForward 0x35 // OOC 11.4
+#define LED_Play 0x36 // OOC 11.4
+#define LED_Pause 0x37 // OOC 11.4
+#define LED_Record 0x38 // OOC 11.4
+#define LED_Error 0x39 // OOC 11.6
+#define LED_UsageSelectedIndicator 0x3A // US 11.6
+#define LED_UsageInUseIndicator 0x3B // US 11.6
+#define LED_UsageMultiModeIndicator 0x3C // UM 11.6
+#define LED_IndicatorOn 0x3D // Sel 11.6
+#define LED_IndicatorFlash 0x3E // Sel 11.6
+#define LED_IndicatorSlowBlink 0x3F // Sel 11.6
+#define LED_IndicatorFastBlink 0x40 // Sel 11.6
+#define LED_IndicatorOff 0x41 // Sel 11.6
+#define LED_FlashOnTime 0x42 // DV 11.6
+#define LED_SlowBlinkOnTime 0x43 // DV 11.6
+#define LED_SlowBlinkOffTime 0x44 // DV 11.6
+#define LED_FastBlinkOnTime 0x45 // DV 11.6
+#define LED_FastBlinkOffTime 0x46 // DV 11.6
+#define LED_UsageIndicatorColor 0x47 // UM 11.6
+#define LED_IndicatorRed 0x48 // Sel 11.6
+#define LED_IndicatorGreen 0x49 // Sel 11.6
+#define LED_IndicatorAmber 0x4A // Sel 11.6
+#define LED_GenericIndicator 0x4B // OOC 11.6
+#define LED_SystemSuspend 0x4C // OOC 11.6
+#define LED_ExternalPowerConnected 0x4D // OOC 11.6
+
+// (Reserved) 0x4E..0xFFFF // - -
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..206d969
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,101 @@
+// vim: ts=4 sw=4 sts=4
+/* ----------------------------------------------------------------------------
+ * main()
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include
+
+#include "lib-other/pjrc/usb_keyboard/usb_keyboard.h"
+
+#include "lib/data-types.h"
+
+#include "keyboard.h"
+
+
+// note:
+// - see your keyswitch specification for the necessary value. for cherry mx
+// switches, bounce time should be <= 5ms. it looks like most switches are
+// speced between 5 and 8ms.
+// - if timing is important, balance this value with the main() loop run time
+// (~5ms, last i checked, nearly all of it in the i2c update() function)
+#define DEBOUNCE_TIME 5 // in ms
+
+
+int main(void) {
+ kb_init(); // does controller initialization too
+
+ KB_LED1_ON;
+ KB_LED2_ON;
+ KB_LED3_ON;
+
+ usb_init();
+ while (!usb_configured());
+ _delay_ms(1000); // make sure the OS has had time to load drivers, etc.
+
+ KB_LED1_OFF;
+ KB_LED2_OFF;
+ KB_LED3_OFF;
+
+ for (;;) {
+ static uint8_t current_layer = 0;
+
+ // swap `kb_is_pressed` and `kb_was_pressed`, then update
+ bool (*temp)[KB_ROWS][KB_COLUMNS] = kb_was_pressed;
+ kb_was_pressed = kb_is_pressed;
+ kb_is_pressed = temp;
+
+ kb_update_matrix(*kb_is_pressed);
+
+ // call the appropriate function for each key, then send the report if
+ // necessary
+ // - everything else is the key function's responsibility; see the
+ // keyboard layout file ("keyboard/ergodox/layout.c") for which key
+ // is assigned which function (per layer), and "key-functions.c" for
+ // their definitions
+ for (uint8_t row=0; row
+# Released under The MIT License (MIT) (see "license.md")
+# Project located at
+# -----------------------------------------------------------------------------
+
+
+TARGET = firmware
+
+SRC = $(shell find -maxdepth 1 -name '*.c') \
+ $(shell find ./keyboard -name '*.c') \
+ $(shell find ./lib -name '*.c') \
+ './lib-other/pjrc/usb_keyboard/usb_keyboard.c'
+
+
+EXTRAINCDIRS = .
+
+TEENSY_MAKE = $(MAKE) -f 'lib-other/pjrc/usb_keyboard/Makefile' \
+ TARGET='$(TARGET)' \
+ SRC='$(SRC)' \
+ EXTRAINCDIRS='$(EXTRAINCDIRS)'
+
+
+.PHONY: all clean debug
+
+all:
+ $(TEENSY_MAKE) all
+
+clean:
+ $(TEENSY_MAKE) clean
+ git clean -X
+
+debug:
+ $(TEENSY_MAKE) debug
+
diff --git a/src/test/makefile b/src/test/makefile
new file mode 100644
index 0000000..d0a472e
--- /dev/null
+++ b/src/test/makefile
@@ -0,0 +1,38 @@
+# -----------------------------------------------------------------------------
+# This is mostly a stub at the moment, but I'm keeping it separate so I can
+# mess with it later without changing the original
+# -----------------------------------------------------------------------------
+# Copyright (c) 2012 Ben Blazak
+# Released under The MIT License (MIT) (see "license.md")
+# Project located at
+# -----------------------------------------------------------------------------
+
+
+TARGET = test
+
+EXTRAINCDIRS = ..
+
+TEENSY_MAKE = $(MAKE) -f '../lib-other/pjrc/blinky/Makefile' \
+ TARGET='$(TARGET)' \
+ EXTRAINCDIRS='$(EXTRAINCDIRS)'
+
+.PHONY: test_pwm test_twi test_twi_2
+
+test_pwm:
+ $(TEENSY_MAKE) all \
+ SRC='test_pwm.c'
+
+test_twi:
+ $(TEENSY_MAKE) all \
+ SRC='test_twi.c'
+
+test_twi_2:
+ $(TEENSY_MAKE) all \
+ SRC='test_twi_2.c'
+
+.PHONY: clean
+
+clean:
+ $(TEENSY_MAKE) clean \
+ SRC='$(shell find -name '*.c')'
+
diff --git a/src/test/readme.md b/src/test/readme.md
new file mode 100644
index 0000000..05488a9
--- /dev/null
+++ b/src/test/readme.md
@@ -0,0 +1,12 @@
+# src/test
+Files used for testing (at some point)
+
+* I'm keeping these around for reference; they probably won't be maintained,
+ and are quite likely to become broken at some point in the future.
+
+-------------------------------------------------------------------------------
+
+Copyright © 2012 Ben Blazak
+Released under The MIT License (MIT) (see "license.md")
+Project located at
+
diff --git a/src/test/test_pwm.c b/src/test/test_pwm.c
new file mode 100644
index 0000000..1b6110e
--- /dev/null
+++ b/src/test/test_pwm.c
@@ -0,0 +1,85 @@
+/* ----------------------------------------------------------------------------
+ * Test the Teensy 2.0 PWM code (see `#include`s)
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+
+#include
+#include
+
+
+#define bool _Bool
+#define true 1
+#define false 0
+
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+
+// LED control
+#define KB_LED1_ON (DDRB |= (1<<5))
+#define KB_LED1_OFF (DDRB &= ~(1<<5))
+#define KB_LED1_SET(n) (OCR1A = (uint8_t)(n))
+#define KB_LED1_SET_PERCENT(n) (OCR1A = (uint8_t)((n) * 0xFF))
+#define KB_LED2_ON (DDRB |= (1<<6))
+#define KB_LED2_OFF (DDRB &= ~(1<<6))
+#define KB_LED2_SET(n) (OCR1B = (uint8_t)(n))
+#define KB_LED2_SET_PERCENT(n) (OCR1B = (uint8_t)((n) * 0xFF))
+#define KB_LED3_ON (DDRB |= (1<<7))
+#define KB_LED3_OFF (DDRB &= ~(1<<7))
+#define KB_LED3_SET(n) (OCR1C = (uint8_t)(n))
+#define KB_LED3_SET_PERCENT(n) (OCR1C = (uint8_t)((n) * 0xFF))
+
+
+int main(void) {
+ CPU_PRESCALE(0); // set for 16MHz
+
+ // pwm init for keyboard LEDs
+ // (see "PWM on ports OC1(A|B|C)" in "teensy-2-0.md")
+ DDRB |= 0b11100000; // set B(7,6,5) as output
+ TCCR1A = 0b10101001; // set and configure fast PWM
+ TCCR1B = 0b00001001; // set and configure fast PWM
+
+
+ for (uint8_t i=0; i<3; i++) {
+ KB_LED1_SET(0x10);
+ KB_LED2_SET(0x20);
+ KB_LED3_SET(0xFF);
+ _delay_ms(500);
+ KB_LED1_SET(0x20);
+ KB_LED2_SET(0xFF);
+ KB_LED3_SET(0x10);
+ _delay_ms(500);
+ KB_LED1_SET(0xFF);
+ KB_LED2_SET(0x10);
+ KB_LED3_SET(0x20);
+ _delay_ms(500);
+ }
+
+ for (uint8_t i=0; i<2; i++) {
+ KB_LED1_OFF;
+ KB_LED2_OFF;
+ KB_LED3_OFF;
+ _delay_ms(500);
+ KB_LED1_ON;
+ KB_LED2_ON;
+ KB_LED3_ON;
+ _delay_ms(500);
+ }
+
+ bool counting_up = true;
+ for (uint8_t i=0;;) {
+ (counting_up) ? i++ : i--;
+ if (i == 0xFF)
+ counting_up = false;
+ else if (i == 0)
+ counting_up = true;
+
+ KB_LED1_SET(i/2);
+ KB_LED2_SET(i/2);
+ KB_LED3_SET(i/2);
+ _delay_ms(10);
+ }
+}
+
diff --git a/src/test/test_twi.c b/src/test/test_twi.c
new file mode 100644
index 0000000..4801c8f
--- /dev/null
+++ b/src/test/test_twi.c
@@ -0,0 +1,105 @@
+/* ----------------------------------------------------------------------------
+ * Test for ACK on address write (with a Teensy 2.0 and I/O expander)
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012 Ben Blazak
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+#include
+#include
+#include
+
+
+// processor frequency (from )
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+#define CPU_16MHz 0x00
+#define CPU_8MHz 0x01
+#define CPU_4MHz 0x02
+#define CPU_2MHz 0x03
+#define CPU_1MHz 0x04
+#define CPU_500kHz 0x05
+#define CPU_250kHz 0x06
+#define CPU_125kHz 0x07
+#define CPU_62kHz 0x08
+
+
+// ----------------------------------------------------------------------------
+// helper functions
+// ----------------------------------------------------------------------------
+
+#define blink_led(time1, time2) { \
+ /* Teensy 2.0 onboard LED on PD6
+ on high, off low */ \
+ PORTD |= (1<<6); \
+ _delay_ms(time1); \
+ PORTD &= ~(1<<6); \
+ _delay_ms(time2); \
+}
+
+// ---------------------------------------------------------------------------- // TWI
+// ----------------------------------------------------------------------------
+
+void twi_init(void) {
+ TWSR &= ~( (1<
+ * Released under The MIT License (MIT) (see "license.md")
+ * Project located at
+ * ------------------------------------------------------------------------- */
+
+#include
+#include
+#include
+
+#define TWI_FREQ 400000
+#include "../lib/teensy-2-0/twi.c"
+
+
+// processor frequency (from )
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+#define CPU_16MHz 0x00
+
+
+// ----------------------------------------------------------------------------
+// helper functions
+// ----------------------------------------------------------------------------
+
+#define blink_led(time1, time2) { \
+ /* Teensy 2.0 onboard LED on PD6
+ on high, off low */ \
+ PORTD |= (1<<6); \
+ _delay_ms(time1); \
+ PORTD &= ~(1<<6); \
+ _delay_ms(time2); \
+}
+
+
+// ---------------------------------------------------------------------------- // TWI
+// ----------------------------------------------------------------------------
+
+#define IODIRA 0x00
+#define IODIRB 0x01
+#define GPPUA 0x0C
+#define GPPUB 0x0D
+#define GPIOA 0x12
+#define GPIOB 0x13
+#define OLATA 0x14
+#define OLATB 0x15
+
+#define TWI_ADDR_WRITE (0b0100000<<1)|TW_WRITE
+#define TWI_ADDR_READ (0b0100000<<1)|TW_READ
+
+
+// ----------------------------------------------------------------------------
+// main
+// ----------------------------------------------------------------------------
+
+/* notes:
+ * - won't work without the `twi_stop()`s after each block
+ */
+int main(void) {
+ CPU_PRESCALE(CPU_16MHz);
+
+ twi_init();
+
+ // set all gpio pins as:
+
+ // output
+ twi_start();
+ twi_send(TWI_ADDR_WRITE);
+ twi_send(IODIRA);
+ twi_send(0);
+ twi_send(0);
+ twi_stop();
+
+ // with pull-up
+ twi_start();
+ twi_send(TWI_ADDR_WRITE);
+ twi_send(GPPUA);
+ twi_send(0xff);
+ twi_send(0xff);
+ twi_stop();
+
+ // logical 1
+ twi_start();
+ twi_send(TWI_ADDR_WRITE);
+ twi_send(OLATA);
+ twi_send(0xff);
+ twi_send(0xff);
+ twi_stop();
+
+ return 0;
+}
+