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forcing the creation of a vcd file

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Hello,

How do I instruct simvision to force the creation of a vcd file?

I am trying to create tcl script to dump signals into a vcd file and then immediately post-process this very vcd.

These are the two lines I want to run in sequence from a ncsim tcl script : 

simvision -submit "database export $my_signals -format vcd -name my_vcd.vcd"

file copy my_vcd.vcd ${my_dir}/myvcd.vcd

The problem that I am experiencing is that simvision seems to postpone the creation of the vcd file. Therefore, at the moment the second line is executed the vcd file is not yet available.

I get the following error:

ncsim> *E,TCLERR: error copying "driver.vcd": no such file or directory

However, if I run the two lines separately (i.e., not in a script) it works.So It seems that I have to force the creation of the vcd, but I don't know how.

I would appreciate your help.

Thanks!

 

 


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