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Vishvas's avatar
Vishvas
Icon for New Contributor rankNew Contributor
5 years ago
Solved

Error while using Simulation Waveform Editor

I was trying to use the Simulation Waveform Editor but I get an error when I try to run simulation.

I have attached a screenshot of the error

Could you please help me out

Thank you

  • Hi Vishvas,


    Remove the -novopt in your script and rerun the simulation.


    Thanks,

    Regards


2 Replies

  • SyafieqS's avatar
    SyafieqS
    Icon for Super Contributor rankSuper Contributor

    Hi Vishvas,


    Remove the -novopt in your script and rerun the simulation.


    Thanks,

    Regards


    • Vishvas's avatar
      Vishvas
      Icon for New Contributor rankNew Contributor

      Thank you that issue is resolved.

      Now I'm facing a new problem. I get an error saying :

      Error (suppressible): (vsim-3601) Iteration limit 5000 reached at time 25 ns.

      I am trying to simulate a simple RS Latch. My code is below and I have attached the screenshot of the error as well. I tried searching how to resolve this error. I read this can occur when there is an infinite loop, but I'm not sure how my code can end up in such a loop. Am I doing something wrong? I'm kinda new to Quartus as well

      module part1(clk, R, S, Q);
      
      	input clk, R, S;
      	output Q;
      	
      	wire R_g, S_g, Qa, Qb /* synthesis keep */;
      	
      	and(R_g, R, clk);
      	and(S_g, S, clk);
      	nor(Qa, R_g, Qb);
      	nor(Qb, S_g, Qa);
      	
      	assign Q = Qa;
      	
      endmodule