Specifications

Reviewing the Source Code
Debugging Program Behavior 5-5
/* ======== processing ======== *
* FUNCTION: Called from processing_SWI to apply signal
* processing transform to input signal.
* PARAMETERS: Address of input and output buffers.
* RETURN VALUE: TRUE. */
Int processing(Int *input, Int *output)
{
Int size = BUFSIZE;
while(size--){
*output++ = *input++ * gain;
}
/* additional processing load */
load(processingLoad);
return(TRUE);
}
/* ======== dataIO ======== *
* FUNCTION: Called from timer ISR to fake a periodic
* hardware interrupt that reads in the input
* signal and outputs the processed signal.
* PARAMETERS: none
* RETURN VALUE: none */
Void dataIO()
{
/* do data I/O */
/* post processing_SWI software interrupt */
SWI_dec(&processing_SWI);
}