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Importing C Function into System Verilog using Incisive DPI

random

The SV Reference manual only gives the list of commands using the irun process but the 3 step process isn't clear.

The steps given in the manual are as follows:

1) ncvlog -sv design_files

ncvlog -sv top.v

 2) ncelab ...

3) ncsim

It is not clear how the C files are complied and how does the ncvlog know about the compiled C executable? 

I greatly appreciate any help regarding this.

 

Regards

Keerthi

  • If you can, I'd really recommend using the "irun" flow. For this simple example, you need only enter the command line:

    irun testit.sv mydpi.c

     

    If you must use the 3-step process, you need to compile your DPI application into a shared library. The default one that ncsim looks for is called "libdpi.so". (If you want to give it a different name, you'll need to use the -sv_lib option to ncsim.)

    gcc -shared -I$ldvhome/tools/inca/include -o libdpi.so mydpi.c
    ncvlog -sv testit.sv
    ncelab testit
    ncsim testit

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