Generating Layout - pcellEvalFailed

This will either be due to a bug in the PDK, or something wrong with your setup of the PDK. When the pcellEvalFailed appears, there's probably a warning in the CIW telling you more detail. Or you can use Verify->Marker->Explain and click over the pcell instance where the pcellEvalFailed appears.

That may give some indication as to what went wrong. We may still not be able to help you here (I don't have access to that PDK), so you may be best to report this back to whomever you obtained the PDK from (UMC?)

Regards,

Andrew.

After I use Verify->Marker->Explain and click to error, it says "(GE-1013): The highlighted marker belongs to cellview umc13nm/N_12_HSL130E/layout and its reason is: ("eval" 0 t nil ("*Error* eval: undefined function" PDKsnapToGrid))"

If it is because of the setup of my PDK, do you have any suggestion why is that?

Thanks

No - I can't find anyone else who has reported an error due to this function being missing (it's not a Cadence-provided function). I suspect it's because some code isn't being loaded - I'd suggest you look through your CDS.log file (and the CIW) for any messages about code being loaded when the PDK is first accessed - maybe there's an error which is preventing something being loaded.

I think you'll need to contact the provider of the PDK. Potentially we might be able to debug it via customer support too (via a screen-sharing session).

Regards,

Andrew

As you said, I checked the CIW and I found a problem about "libInit.il" file. After I fixed it now it works well. Thank you

Dear Nokta

We have integrated AMS (0.35 um library) with Cadence. After schematic, when we go for layout we get 'pcellEvalFailed' . You seem to have found how to fix it by fixing "libInit.il".

We have located the "libInit.il"  file. This is the file contents.

let( (AMS_LIB)
AMS_LIB = strcat(getShellEnvVar("AMS_DIR") "/" getShellEnvVar("AMS_DB") "/HK_S35")
if( !fboundp('rodlg_createTransistor) then
printf( "Loading all available p-cell functions\n" )
load(strcat(AMS_LIB "/skill/ams_sdl.il"))
)
if(isFile(strcat(AMS_LIB "/skill/ams_fluid_func.ils")) then
load(strcat(AMS_LIB "/skill/ams_fluid_func.ils"))
) ; if

if(isFile(strcat(AMS_DIR "/cds/HK_ALL/skill/ams_customParametersAsSpectre.il")) then
load(strcat(AMS_DIR "/cds/HK_ALL/skill/ams_customParametersAsSpectre.il"))
) ; if

)

what specifically we need to fix? Your help would be much appreciated.

Thank you

Given that the original question (in a 3 year old post - the forum guidelines ask you not to post on the end of old threads) was about a UMC PDK, and you're using an AMS PDK, this is unlikely to be the same issue, as the two PDKs will be different, implemented by different people.

You should contact AMS for support on their PDK.

Andrew