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Adventurer
Adventurer
196 Views
Registered: ‎03-31-2017

Is there a Virtex-7 simprims model for an FDC?

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I'm trying to carry out a timing simulation on a Virtex-7 device which includes an encrypted netlist. The simulator complains that it can't find an FDC component (which is instantiated in the encryped netlist). The library search path includes 'simprims_ver'.

After some digging, it appears that there isn't actually an FDC simprims model for Virtex-7. Is this correct?

As far as I can make out:

  • FDC is obsolete, but appears as a 'retarget' model in /data/verilog/src in the distribution, where it's remapped to an FDCE
  • The libraries compilation script does produce a unisims model for FDC, but not for simprims

I suppose I could just retarget it myself, but I'd like to be sure that I understand what's going on first. Thanks.

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Xilinx Employee
Xilinx Employee
173 Views
Registered: ‎07-16-2008

回复: Is there a Virtex-7 simprims model for an FDC?

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Your understanding is correct. If you run compile_simlib to compile simulation libraries for 3rd party simulator, the retarget primitives will be compiled to unisims library. However for simprims library compilation, only the unisims primitives are included.

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Xilinx Employee
Xilinx Employee
174 Views
Registered: ‎07-16-2008

回复: Is there a Virtex-7 simprims model for an FDC?

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Your understanding is correct. If you run compile_simlib to compile simulation libraries for 3rd party simulator, the retarget primitives will be compiled to unisims library. However for simprims library compilation, only the unisims primitives are included.

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-------------------------------------------------------------------------

View solution in original post

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Adventurer
Adventurer
139 Views
Registered: ‎03-31-2017

回复: Is there a Virtex-7 simprims model for an FDC?

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Thanks. I got the sim running by explicitly compiling the target models that I needed. The netlist was originally generated for V5, and the vendor seems to think that that's enough for V7.

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