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OrF's avatar
OrF
Icon for Occasional Contributor rankOccasional Contributor
1 year 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
1 year ago

Hi,

I’ve tried multiple combinations of the set_instance_assignment command,
but nothing seems to work. Below are the commands I used in the TCL window of the Timing Analyzer tool.
After entering the commands, I clicked on Report DRC, but nothing changed.
I also tried clicking Reset Design, Update Timing Netlist, and finally Report DRC again, but still no changes.
Do I need to re-synthesize the design?

Here are the commands I tried:

set_instance_assignment -entity evt_dib_ip_i|die_ready_Z -name SYNCHRONIZER_IDENTIFICATION "FORCED IF ASYNCHRONOUS"
set_instance_assignment -entity evt_dib_ip_i|die_ready_Z -name SYNCHRONIZER_IDENTIFICATION "FORCED IF ASYNCHRONOee"
set_instance_assignment -entity evt_dib_ip_i|die_ready_Z -name SYNCHRONIZER_IDENTIFICATION "FORCED"
set_instance_assignment -entity evt_dib_ip_i|die_ready_sync_i|sync1_in_Z -name SYNCHRONIZER_IDENTIFICATION "FORCED IF ASYNCHRONOUS"
set_instance_assignment -entity evt_dib_ip_i|die_ready_sync_i|sync1_in_Z -name SYNCHRONIZER_IDENTIFICATION "FORCED"
set_instance_assignment -to evt_dib_ip_i|die_ready_Z -name SYNCHRONIZER_IDENTIFICATION "FORCED IF ASYNCHRONOUS"
set_instance_assignment -to evt_dib_ip_i|die_ready_Z -name SYNCHRONIZER_IDENTIFICATION "FORCED"
set_instance_assignment -to evt_dib_ip_i|die_ready_sync_i|sync1_in_Z -name SYNCHRONIZER_IDENTIFICATION "FORCED IF ASYNCHRONOUS"
set_instance_assignment -to evt_dib_ip_i|die_ready_sync_i|sync1_in_Z -name SYNCHRONIZER_IDENTIFICATION "FORCED"