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How to trace flops with constant inputs in Conformal?

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I used the following setup to compare old and new designs (netlist level). set flatten model -seq_constant -seq_constant_x_to 0 There was a flop I manually added in the new netlist. However, formal showed the input is constant '1'. I wanted to find out how Conformal got to it. What would be the best way to do it? Is there a way I can open up the schematic, etc and see what happened in the tool?


Originally posted in cdnusers.org by cosifan

  • Hi cosifan

    I would open the schematic from the hierarchy browser in the main GUI. This one shows the design, pre-modeling, pre-flattening. Find the flop in question and then use 'trace driver' to see what's driving it. You may have to go through several levels of logic however.

    Chrystian


    Originally posted in cdnusers.org by croy

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