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  3. How to import large verilog netlist into cadence schematic...

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How to import large verilog netlist into cadence schematic?

mliang
mliang over 12 years ago

The verilog netlist contains more than 40 thousands component. When I import the netlist into cadence, it gives me an error of "Illegal bus reference - Can't tap "Neta" from "Netb".". I looked through the generated schematic, it messed up Neta and Netb.  I cheked the Schematic Generation Options befoe importing the netlist again. The Maximum number of Rows/columns are limited to 1024. Is it possible to increase the Maximum Number of Rows/Columns of the schmatic before importing the large netlist?

 

Thanks,

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  • Andrew Beckett
    Andrew Beckett over 12 years ago

    I suggest you contact customer support. You didn't say which version you're using - which is quite important as there have been a number of fixes related to Verilogin.

    You could always turn off the Full Place & Route option, so that it doesn't attempt to fully route the schematic. You could also decrease the density - it's a slider on the form. But without knowing what the real issue, it's hard to be sure. 1024x1024 should be OK for 40k components.

    Andrew.

     

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  • mliang
    mliang over 12 years ago
    Thanks very much. It is helpful. I will try it and to see what happens.
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  • anasimtiaz
    anasimtiaz over 10 years ago
    Hi, Just wondering if you managed to solve this problem. I am having the same error of can't tap neta from netb while importing. Do let me know if you have an update.
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  • mliang
    mliang over 10 years ago

    If you turn off the "full place and route" option, it will generate the schematic only containing components. That's solved the the problem. 

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  • anasimtiaz
    anasimtiaz over 10 years ago
    Thank you!
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