I'm trying to get my board set up to receive data via UDP, run an FFT and then return the data back to the requesting port, I receive and echo back data but as soon as I try to process it with the FFT function the system locks up waiting for a memory semaphore to clear after calling netbuf_new(). Additionally, it seems all the netconn variables are messed up after running the FFT, they show sensible values at the start but after the FFT is run they get changed or cleared. This does not occur if don't run the FFT and instead fill the array with dummy data.
/* Perform the FFT*/
arm_rfft_f32(&RealFFT_Instance, (float32_t*) procDat,
(float32_t*) outDat);
/* Dummy data generation */
/* for (int i = 0; i < LENGTH_SAMPLES; i++) {
outDat[i] = i;
}*/
/* Create new netbuf for return data*/
out = netbuf_new(); // Fails in here
if (out == NULL) {
exit(-1);
}
buf = netbuf_alloc(out, LENGTH_SAMPLES * sizeof(uint32_t));
Any suggestions on what could be causing this would be appreciated, thanks.
