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Altera_Forum
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16 years ago

SERDES 6.25Gbps ALT2GXB rx_freqlocked

Hi All, I have two Stratix II FPGAs (in two boards) communicating through 20 SERDES channels (Basic protocol). Usually things work fine. When one of the boards is not connected, I expect that t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I think, that checking for valid 8b_10b codes based on rx_syncstatus and rx_errdetect should give a more reliable link detection. But also a simple on-delay for rx_freqlocked may be sufficient to filter false link detection.