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Saving S parameters to an specific directory and with swept variables.

IM202411276820 4 months ago

I have been dealing with this the whole day, trying to save a sweep of S parameters in Assembler

I created a global variable called Sfile, defined as:

Sfile sprintf(nil "/home/ma045619/simulation/Spar/hello_VGC%d_VPKC%d_VATC%d_temp%d.s4p" VGC VPKC VATC temperature)

The variables are just control signal values.

For sprintf, syntax seems correct.

Directory exists,

S parameter simulation has the output file as:

VAR("Sfile")

But the simulator complains about the first forward slash character "/"

Cannot run the simulation because syntax error `Unexpected operator "/"' was encountered at line 11, column 10

I tried all the typical C syntax variations but nothing seems to work.

The solution should be simple, but I guess it is some SKILL specific syntax.

IM202411276820 4 months ago

It seems the path must be in double quotes " ", I tried lsprintf with quotes but Virtuoso just hangs and crashes....

lsprintf("\"/home/ma045619/simulation/Spar/hello_VGC%d_VPKC%d_VATC%d_temp%d.s4p\"" VGC VPKC VATC temperature)
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Andrew Beckett 4 months ago in reply to IM202411276820

Which version of Virtuoso are you using? I just tried this in IC23.1 ISR13 and it worked fine (with either design variables or global variables). Here's my setup (I didn't need extra quotation marks; I used lsprintf instead of sprintf just to avoid the nil argument):
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IM202411276820 4 months ago in reply to Andrew Beckett

Yes it is version related, I was using 500.34, and upgraded to 500.36 and later to Virtuoso Studio.

My data collection is now working properly, but I was truly stuck thinking it was a syntax.
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