Hello,
If you want people to help you, you will have to give some additionnal information... ^^
Can you explain the general architecture of your system ? (inputs, outputs...and do not forget that a draw is sometimes more efficient to explain things than too many words ;) )
Can you give some examples about the tests you need to do ? (for instance : generating a digital signal on pin X of your device for activating one mode or another...and then measuring 100 analog data points, with a 1000 Hz sampling rate, from another pin of your device...and then displaying results into a graph, and logging results into a file, etc...)