PORT-C in XEM8320 is not giving the same waveform as PORT-A and PORT-B

[michael]

Please see:

I/O planning failed while interfacing PORT C or D of LTC226x with XEM8320 board

We were able to recreate your issue related to SYZYGY Port C on the XEM8320 board. After a thorough investigation, it seems the problem lies with the timing of the LVDS DDR Source synchronous interface. We’ve addressed this issue in our latest commit: Fix ADC-14 timing: Implemented MMCM phase shift in ADC sample design To resolve your issue, checkout this commit, re-target the interface for Port C in the XDC (instead of Port A), and test the new bitfile in-hardware. This should solve your prob…