Hi to all,

I always use heart bit led to indicate every things fine or there is an error etc.
and noticed that my heart bit led routine is slowing down ADC conversion I have
it on 2 channels. now I am wondering if there is better routine that I used it.
I didn't use any delay that way will be no delay. here is the code I came up.
I use 16f876a and it is setup on timer1 interrupt. I use ccs compiler and i is
global int.


// Is PIC Alive or what?
#INT_TIMER1
void alive_isr()
{
    if ( td_status == OK )
    {
        //      Single Blink to indicate OK
        switch(i) 
        {
            case 0 : alive_led_on;  i++; break;
            case 1 : alive_led_on;  i++; break;
            case 2 : alive_led_on;  i++; break;
            case 3 : alive_led_on;  i++; break;
            case 4 : alive_led_on;  i++; break;
            case 5 : alive_led_off; i++; break;
            case 6 : alive_led_off; i++; break;
            case 7 : alive_led_off; i++; break;
            case 8 : alive_led_off; i++; break;
            case 9 : alive_led_off; i++; break;
            default :  i=0;
        }// end of switch
    }
    else
    {
        //      Double Blink to indicate error
        switch(i) 
        {
            case 0 : alive_led_on;  i++; break;
            case 1 : alive_led_off; i++; break;
            case 2 : alive_led_on;  i++; break;
            case 3 : alive_led_off; i++; break;
            case 4 : alive_led_off; i++; break;
            case 5 : alive_led_off; i++; break;
            case 6 : alive_led_off; i++; break;
            case 7 : alive_led_off; i++; break;
            case 8 : alive_led_off; i++; break;
            case 9 : alive_led_off; i++; break;
            default :  i=0;	
        }// end of switch
    }// end of if

}


my question is what is the best way of indicating single blink led
or double blink led that is not going to take lots of resources.


thanks

Andre

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