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RVanD5's avatar
RVanD5
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7 years ago

FFT Core - Variable streaming floating point - Arria 10. Output SOP and EOP are not aligned.

We are having trouble with the migration of the fixed point FFT core to the floating point FFT core on Arria 10. On example of strange behavior is seen in the the SignalTap below: the SOP en EOP mark...
RVanD5's avatar
RVanD5
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7 years ago

Hi,

Ran some tests with the "example design". Modified it to run 6 x 4096 streams. The output is correct. However, this little test_program

only demonstrates the ideal world of all valid data and an always ready-in of the source. My hunch is that the behavior is caused by

the non-valid data between the streams (say 8 cycles).

Regards, Rob