Dear all,

I am running AMS in IC615. If I simulate with Verilog blocks only, it works well.

After I include circuits including transistors, error occurs.

The errors shown in ncvlog.log are

ncvlog: *E,UXEXID (.../schematic/verilog.vams,20|58): Unexpected identifier 'P' after completed expression.
nch_ulvt_mac #(.ad(1.5E-14), .nrd(2.828877), .spmt(1.11111P), .spomb(0),

I guess it is because the tool cannot recognize the scaled notation "P" which is 10e+15.

However, this parameter is defined in PDK and I can not modify it.

Is there anyway to solve this or this is not the root cause?

Thank you very much.

Verilog-AMS doesn't support P; as of LRM version 2.4, it only goes up to T.  (I assume you meant 1e+15, not 10e+15.)