John,

Your led RA4 will always stay off or you will see a glitch
because right after turning Led on the beginning of the code
your are turning it off. This is what I would do.


void BlinkAlive(void)
{
        if (!(--ALIVECNT))              // Decrement loop counter and
return
        {
          ALIVECNT = 250;               // Reinitialize BLNKCNT
          PORTAbits.RA4 ^= 1;           // Xor toggle led on/off
        }
}


the compiler should generate
BTG PORTA,4  ; bit toggle in asm
I use hi-tech but it should be the same for c18

Andre Abelian



-----Original Message-----

void BlinkAlive()
{
        PORTAbits.RA4 = 1;              // Turn off LED
        if (!(--ALIVECNT))              // Decrement loop counter and
return if not zero
        {
          ALIVECNT = 250;               // Reinitialize BLNKCNT
          PORTAbits.RA4 = 0;            // Turn on LED for ten
milliseconds
        }
}

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