Hi @Tim Edwards, I having some trouble when running my project's characterization txt file on cace-gui (shown error in the pic). I have tried clone sky130_ef_ip_instramp project and it works fine with the cace-gui. Is there anything i miss out other than filling up the characterization txt file and prepare all the testbench?

Can you please share the

sky130_icrg_ip__ulpcomp.txt

file? I apologize for the lack of useful feedback in the error message.

Yes sure, please look onto the attachment.

I will have to do a better job of parsing and reporting errors. There are two errors (the first one shadows the second): The first error is that a parameter name cannot contain spaces (not checked by the parser). So on line 505, change

Propagation delay

to

Propagation_delay

. The second error is that a specification cannot be left blank (also not checked by the parser). On line 305, change

minimum:

to

minimum: any

(or else remove the line). With these two changes I can read the file successfully.

Thank you Tim for the debug, I was unaware on this two minor errors.