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VerilogA compiler

Sali

 Dear all,

I'm using VerilogA model in my design in Cadence, I have some variables in the model that should be changed with time, actually I have two questions:

1- Is there a way to display the value of those variables during the analog simulation? I was looking for VerilogA compiler to test my code first but I didn't find, can some one suggest me a website or any information?

2- The statement of  @(initial_step), does it mean the command after it will be exceuted only one time, which is the begining of the simulation?

 

Thank you in advance,

 

Parents

  •  Thank you for your reply

    Actually I ran the following and I'm still have the error of "Error found by spectre during AHDL read-in.
        ERROR (VACOMP-1554): "/home/thesis/Chua3/CalculateTheWeightR12/veriloga/veriloga.va", near line 25: Encountered an attempt to access a quantity that depends on a time derivative. The software allows only symbolic use of such quantities. Either remove the need to access this quantity or create an internal node, assign the voltage of the internal node to this quantity, and access the voltage of the internal node.
        ERROR (VACOMP-1816): Exiting AHDL compilation.
    :

     e=0.5*(V(y22,gnd)-standard);
    x=ddt(V(y22,gnd));
    if(x==0)begin
    if(e>0)
    A11=A11-eatah;
    else if(e<0)
    A11=A11+eatah;
    end

     Could you please expalin more how to solve this error.

    Thanks 

     

Reply

  •  Thank you for your reply

    Actually I ran the following and I'm still have the error of "Error found by spectre during AHDL read-in.
        ERROR (VACOMP-1554): "/home/thesis/Chua3/CalculateTheWeightR12/veriloga/veriloga.va", near line 25: Encountered an attempt to access a quantity that depends on a time derivative. The software allows only symbolic use of such quantities. Either remove the need to access this quantity or create an internal node, assign the voltage of the internal node to this quantity, and access the voltage of the internal node.
        ERROR (VACOMP-1816): Exiting AHDL compilation.
    :

     e=0.5*(V(y22,gnd)-standard);
    x=ddt(V(y22,gnd));
    if(x==0)begin
    if(e>0)
    A11=A11-eatah;
    else if(e<0)
    A11=A11+eatah;
    end

     Could you please expalin more how to solve this error.

    Thanks 

     

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