Critical Warning during Quartus Compilation of JESD204B IP Core Design Example: Unused Transceiver RX Channels

Description

During Quartus compilation of the JESD204B IP core design example, you will encounter the following critical warning:

Critical Warning: There are xx unused RX channels in the design. If you intend to use these channels in the future, you must add the assignment \'set_global_assignment -name ENABLE_UNUSED_RX_CLOCK_WORKAROUND ON\' in your QSF file. This assignment will preserve the performance of these channels over time.

Resolution

Eliminate the warning by performing one of the following options:

1. Enable unused rx clock workaround. In your QSF file, insert the following assignment: set_global_assignment -name ENABLE_UNUSED_RX_CLOCK_WORKAROUND ON

2. Disable the warning (do this only if you are certain that you will not use other transceiver channels in your design). In your QSF file, insert the following assignment: set_global_assignment -name MESSAGE_DISABLE <message_id>

This issue will be fixed in a future release.