JESD204B DEV_SYNC_N, Rx Link Up is LOW and dev_aligned is LOW

Hie,

Your signaltap is missing some critical signals such as sync_n; hence its difficult to make a concludion on what is going on.

Please add signal following Figure 33 of the user guide and refer to the description of the timing diagram to understand whats going wrong in your system.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_jesd204b.pdf

Please check that and let me know if you have further questions.

Regards,

Nathan