fe603948a9
- also changed the kbfun function comments to be easier to parse - also added running the generating script to the toplevel build process
68 lines
2 KiB
C
68 lines
2 KiB
C
/* ----------------------------------------------------------------------------
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* key functions : device specific : code
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* ----------------------------------------------------------------------------
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* Copyright (c) 2012 Ben Blazak <benblazak.dev@gmail.com>
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* Released under The MIT License (MIT) (see "license.md")
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* Project located at <https://github.com/benblazak/ergodox-firmware>
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* ------------------------------------------------------------------------- */
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include "../public.h"
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// ----------------------------------------------------------------------------
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// descriptions
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// ----------------------------------------------------------------------------
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/*
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* [name]
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* Jump to Bootloader
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*
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* [description]
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* For reflashing the controller
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*/
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void kbfun_jump_to_bootloader(void);
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// ----------------------------------------------------------------------------
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#if MAKEFILE_BOARD == teensy-2-0
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// ----------------------------------------------------------------------------
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// from PJRC (slightly modified)
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// <http://www.pjrc.com/teensy/jump_to_bootloader.html>
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void kbfun_jump_to_bootloader(void) {
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// --- for all Teensy boards ---
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cli();
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// disable watchdog, if enabled
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// disable all peripherals
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UDCON = 1;
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USBCON = (1<<FRZCLK); // disable USB
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UCSR1B = 0;
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_delay_ms(5);
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// --- Teensy 2.0 specific ---
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EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0; ADCSRA = 0;
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TIMSK0 = 0; TIMSK1 = 0; TIMSK3 = 0; TIMSK4 = 0; UCSR1B = 0; TWCR = 0;
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DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0; TWCR = 0;
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PORTB = 0; PORTC = 0; PORTD = 0; PORTE = 0; PORTF = 0;
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asm volatile("jmp 0x7E00");
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}
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// ----------------------------------------------------------------------------
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#else
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// ----------------------------------------------------------------------------
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void kbfun_jump_to_bootloader(void) {}
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// ----------------------------------------------------------------------------
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#endif
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// ----------------------------------------------------------------------------
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