Hello, I need to sample audio for my spectrum analyazer. For now i'm sampling my data in de loop routine with the following code: for (i = 0; i < 128; i++) { val = analogRead(A5); data[i] = val/4; im[i] = 0; } what i'm trying to achieve is to sample in an interrupt routine. I already …

Sampling audio with interrupt

CrossRoads April 3, 2014, 6:53pm 5

What are you doing with the array im[] ?

1/9600 = 104uS, so your 600uS seems a little off.