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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,

Just one little observation, at the source just after the SOP there is a single cycle valid deassertion. Never observed it before it other core variations, and cannot image any reason for it.