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BKB's avatar
BKB
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Generated visible in "Report Clocks" but the same generated clock not found during timing analysis

Hi, In my design when I report clocks, I see that the the clock in question is generated and the generated clocks are set to be asynchronous by "set_clock_groups -asynchronous ...." in the top leve...
Timing
BKB's avatar
BKB
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

The SDC's for PLLs and other IPs are also automatically added. As per the "Report SDC File List" the sdc for the clock_control_blocki is added and shown in the list with other sdc file.

But in the list generated by "Report SDC" there is no constraint from the clock_control_block_i and hence the constraint which is trying setting the clock groups asynchronous is ignored.