Hi.
I am having trouble with DSF_sp_fftSPxSP with a 4k vector on the 6727. I seem to be able to do a 1k and 2k just fine but the 4k always sputters NANs, though it does not crash.
Here is the call: DSPF_sp_fftSPxSP(n_max, &buf[0], &w[0], fftend, brev, n_min, offset, n_max);
n_max = 4096
buf is 8192 floats long
w is 8192 floats
fftend is an array of 8182 floats
brev is the bit-reverse table
n_min is 2
offset is 0
All the arrays are aligned with the DATA_ALIGN pragma as in this example: #pragma DATA_ALIGN (buf, 8);
The only difference between the failing call and the ones that work is the size of the fft- 4096. This does not fit in the cache but it should not fail, should it?
Thanks,
Don