// led blink example Copyright (C) 2014 Diego Herranz

#define NO_BIT_DEFINES
#include <pic14regs.h>
#include <stdint.h> 

// Oscillator Selection bits (INTOSCIO oscillator: I/O function on RA6/OSC2/CLKOUT pin, I/O function on RA7/OSC1/CLKIN),
// disable watchdog,
// and DO NOT disable low voltage programming.
// The rest of fuses are left as default.
__code uint16_t __at (_CONFIG1) __configword = _FOSC_INTOSC & _CLKOUTEN_OFF & _WDTE_OFF & _BOREN_ON & _CP_OFF;

#define LED_PORT PORTCbits.RC5
#define LED_TRIS TRISCbits.TRISC5

// board layout:
// mosfets clockwise from power feed:
// RA5, RA4, RC2, RC3
// 'input' pin: RC5

// Uncalibrated delay, just waits a number of for-loop iterations
void delay(uint16_t iterations)
{
	uint16_t i, j;
  
	for (i = 0; i < iterations; i++) {
		// Prevent this loop from being optimized away.
    //for (j = 0; j < 12; j++) { 
		__asm nop __endasm;
    //}
	}
}
#define PPSO_PWM1 3
void main(void)
{
  OSCCON = 0xf0;
  TRISC = 0;
  //SLRCONC = 0;
  OPTION_REGbits.PSA = 1;
  LED_PORT = 0;
    PWM1CLKCON = 0x00;  // From Fosc w/o prescaler
    PWM1PRH = PWM1PRL = 0xFF;
    PWM1PH     = 0;
    PWM1DCH = PWM1DCL = 0;
    PWM1OF     = 0;
    

    PWM1INTE   = 0x00;  // no interrupts enabled
    PWM1INTF   = 0x00;  // clear interrupt flag
    PWM1LDCON  = 0x80;  // load armed
    PWM1OFCON  = 0x00;  // independent run mode
    PWM1CON    = 0x80;  // enable, standard PWM mode, active high output

    RC5PPS = PPSO_PWM1;
    //PWM1OUT = 1;
    


    while(1) {
      delay(1);
      while (PWM1DCL < 0xFF || PWM1DCH < 0xFE) {
        if (PWM1DCL == 0xFF) PWM1DCH++;
        PWM1DCL++;
        PWMLD = 1;
        delay(1);
      }
      while (PWM1DCL > 0 || PWM1DCH > 0) {
        if (PWM1DCL == 0) PWM1DCH--;
        PWM1DCL--;
        PWMLD = 1;
        delay(1);
      }
    }
}