sdf annotation issue - Cadence NCSIM

[eng.amr2009]

Hi guys,


I was running timing simulation using NCSim and due some issues the SDF annotation failed. However, I did not receive any timing violation as It happened before while using modelsim. Receiving violations is a sign that there are delay information. The delay info exists in the library models I compiled.
The absence of this sign means there is something missing.

I fixed the SDF annotation but received a large set of warning. But I can not ignore these warnings as they may be relevant. Moreover, NCSim does not generate any timing violations !!!

I'm using tsmc-180

Sample of the warnings:

ncelab: *W,SDFNEP: Unable to annotate to non-existent path (COND ((((SI==1)&&(SE==1))&&(D==1))&&(CK==1)) (IOPATH RN Q)) of instance.....SDFFRHQXL

ncelab: *W,SDFNET: Unable to annotate to non-existent timing check (SETUPHOLD (posedge D) (posedge CK) (119) (-59.6)) of instance...SDFFRHQXL

ncelab: *W,SDFNEP: Unable to annotate to non-existent path (COND (((B0==1)&&(A0N==1))&&(A1N==1)) (IOPATH B1 Y)) of instance .... AOI2BB2XL


Any help ? Either to remove these warnings or to make sure they are irrelevant.

Thanks in advance

 

[jxk_st]

warning is because there are mismatches on timing check between you lib and SDF file, find the same cell in both lib and SDF and check about timing check part