Forum Discussion

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

CDC-50001 - 1-Bit Asynchronous Transfer Not Synchronized

I'm trying to re-open this ticket - I didn't found how , but anyway I tried to change the default Quartus SYNCHRONIZATION_REGISTER_CHAIN_LENGTH 2 (instead of 3) and still get the same warning , ...
Timing
OrF's avatar
OrF
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Hi,

Unfortunately, the issue persists. I am still encountering the CDC50001 failure on the same path. To clarify:

I added the following two global assignments and verified they are set correctly in the GUI:

set_global_assignment -name SYNCHRONIZER_IDENTIFICATION FORCED
set_global_assignment -name SYNCHRONIZATION_REGISTER_CHAIN_LENGTH 2

Is there any other way to ensure these settings are captured by Quartus?

or next steps for debug the issue ?

Thanks,

Or