Forum Discussion
User1582192733150209
Occasional Contributor
Occasional ContributorDigit Reverse Order issue for INTEL FFT IP core
Hello Sir/Madam,
I am simulating the intel FFT IP core, and seems the index of non-natural order FFT output is not fully match the index digi reverse calculation.
Quartus prime pro 17.1
Model...
CheepinC_altera
Regular Contributor
Regular ContributorHi,
For your information, as I tested running simple example design from Q17.0 std with bi-directional, length = 8 and fixed point, I can get the correct digit reverse order when comparing between the digit reverse and natural output test cases. Would you mind to try with dummy design + fixed point to see if can get the right index? To help us narrow down if this only occurs in floating point data format.
In the meantime, I will try to customize the example design to take in your data to see if can replicate any anomaly.
Thank you.
