Objective Development Forums

Code: Select all

  

static void beep(uchar duration)
{
    beepCnt = duration * 200;
    TIMSK2 |= 1 << OCIE2A; 

//TIMSK is original, have choice between TIMSK 0 - 2
//OCIE2 is original, can be OCIE2A or B

}

UTIL_INTERRUPT(SIG_OUTPUT_COMPARE2) /* run with global interrupt enable */
{
    if(--beepCnt <= 0){
        TIMSK2 &= ~(1 << OCIE2A);

/TIMSK is original, have choice between TIMSK 0 - 2
//OCIE2 is original, can be OCIE2A or B

        PORTD |= 2;     /* make sure LED is off */
    }else{
        if(beepCnt & 1){
            PORTD |= 2;
        }else{
            PORTD &= ~2;
        }
    }
}

static void initHardware(void)
{
uchar   i, j;

    DDRC = 0;
    PORTC = 0x20;
    DDRD = 0x07;    /* 0000 0111 bin includes USB reset */
    PORTD = 0x3a;   /* 0011 1010 bin */
    setOutput(outputStatus);
    j = 0;
    while(--j){         /* USB Reset by device only required on Watchdog Reset */
        i = 0;
        while(--i);     /* delay >10ms for USB reset */
    }
    DDRD = 0x02;    /* 0000 0010 bin remove USB reset condition */
    /* ADC used for clock speed input: */
    ADMUX = 0x44;   /* ref=AVcc, select PC4 */
    ADCSRA = 0xc7;  /* enable ADC, start conversion, rate = 1/128 */


    /* Timer0 used to sample input (~50Hz) */
    TCCR0A = 5;  /* prescaler = 1024 */
//TCCR0 is original, TCCR0A or B

    /* Timer1 used for event clock */
    TCCR1A = 0; /* normal mode, no output actions */
    TCCR1B = 0x08 | 5;  /* CTC mode, clear on OCR1A, prescaler = 1024 */
    OCR1A = 0xffff;
    /* Timer2 used for acoustic signaling, we want 2kHz interrupt rate */
    TCCR2A = 0x08 | 3;   /* CTC mode, prescaler = 32 */
    OCR2A = 188;

//TCCR2 & OCR2 are original, A or B choice on both 


}


  DBG1(0x00, (void *)&codeEepromSize, sizeof(codeEepromSize));
    for(;;){    /* main event loop */
        wdt_reset();
        usbPoll();
        if(TIFR1 & (1 << OCF1A)){
            TIFR1 |= 1 << OCF1A; /* clear pending flag */

//TIFR is original, can be TIFR0-2

            timerInterrupt();
        }
        pollAction();
        if(TIFR0 & (1 << TOV0)){ /* debounce by sampling with reduced rate */
            TIFR0 |= 1 << TOV0;

 //TIFR is original, can be TIFR0-2         

          pollInput();
            pollOutput();
            pollCommands();

Code: Select all

int   main(void)
{
uchar   key, lastKey = 0, keyDidChange = 0;
uchar   idleCounter = 0;

    wdt_enable(WDTO_2S);
    hardwareInit();
    odDebugInit();
    usbInit();
    sei();
    DBG1(0x00, 0, 0);