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Simulators >> AMS Simulators >> strange spectre error about -mixmod
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Message started by bbarnett on Feb 10^th, 2007, 10:00am

Title: strange spectre error about -mixmod
Post by bbarnett on Feb 10^th, 2007, 10:00am

Hello,

I am trying to run a mixed signal simulation using spectreverilog as the simulator. It sets up, but spectre seems to die.

When I attempt to execute runSimulation manually (file contains):

spectre -env artist5.1.0 +escchars +log ../psf/spectre.out -format sst2 -raw ../psf -I(correct model path) +lqtimeout 900 -maxw 5 -maxn 5 -mixmod -slvhost (correct hostname) '-slave"(correct path...)/config/netlist/digital verilog.vmx -a +sxl_keep_minimum +typdelays +gui -y ./hdlFilesDir +libext+.v+ +incdir+hdlFilesDir +sdf_verbose +sdf_nocheck_celltype -l verilog.log +vmxwavedir../../psf -f mmenvOpts testfixture.template -f verilog.inpfiles"' analog/input.scs

Any ideas as to why -mixmod isn't being accepted by Spectre?

Thanks!

I get the following:

Error found by spectre.
Invalid command line argument `-mixmod'.
Use `spectre -help' for more information.

Title: Re: strange spectre error about -mixmod
Post by Andrew Beckett on Feb 23^rd, 2007, 2:36am

Very odd. -mixmod has been there for years.

Ah, I just did a bit of searching, and I think I know what the problem is. You are picking up the 64 bit version of spectre - and spectreVerilog is only supported in the 32 bit mode. Most likely you have the environment variable $CDS_AUTO_64BIT set?

Certainly if you do "spectre -64 -mixmod" it gives the error - for the same reason.

Regards,

Andrew.

Title: Re: strange spectre error about -mixmod
Post by Geoffrey_Coram on Feb 26^th, 2007, 9:37am

Andrew Beckett wrote on Feb 23^rd, 2007, 2:36am:

spectreVerilog is only supported in the 32 bit mode.

That seems odd to me. Why isn't is supported in 64-bit mode?

Title: Re: strange spectre error about -mixmod
Post by Andrew Beckett on Feb 26^th, 2007, 10:53am

Because spectreVerilog is prehistoric, and is based upon Verilog-XL. Verilog-XL is not a supported Verilog simulator, and hasn't been updated for many years (it doesn't support Verilog 2001, for example).

So really spectreVerilog is supported for legacy reasons.

Regards,

Andrew.