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how to pass array of parameters through CDF down to a verilogA code?

naderi

 Hello all,

 Is there any way to pass an array of parameters down to a verilogA code?

if I put following statement in a verilogA sub-circuit.

parameter real vdc[3:0] ={0,0,1,0};

Then {0, 0, 1, 0} appears in CDF parameters for vdc. However, spectre complains later during circuit read-in.The error message is :

 Error found by spectre during circuit read-in.
    ERROR (SFE-874): "input.scs" 1087: Unexpected block statement "{".

I realized if I enter the parameters within double-qoute as "{0, 0, 1, 0}" at CDF, then spectre will be happy and goes for simulation, but the results are incorrect.

 

I wonder if there is any solution?

Thanks,

Ali

Parents

  •  Andrew,

    I ran into the same problem and I tried out your solution. It did not work and I wonder if the solution is now different with cadence 6.1.5 ?

     // VerilogA for zakir_sim1, bb_prereg_ldo, veriloga

    `include "constants.vams"
    `include "disciplines.vams"

    module trim3bits(sel);
    output [2:0] sel;
    electrical [2:0] sel;

    parameter real trim[2:0] ={0,0,0};

    analog begin

    V(sel[2]) <+ trim[2]*1.1;
    V(sel[1]) <+ trim[1]*1.1;
    V(sel[0]) <+ trim[0]*1.1;

    end

    endmodule p, li { white-space: pre-wrap; }

    Begin Incremental Netlisting Oct 8 16:44:23 2013

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    End netlisting Oct 8 16:44:23 2013

    ERROR (OSSHNL-514): Netlisting failed due to errors reported before. Netlist may be corrupt or may not be produced at all. Fix reported errors and netlist again.

    ...unsuccessful.

Reply

  •  Andrew,

    I ran into the same problem and I tried out your solution. It did not work and I wonder if the solution is now different with cadence 6.1.5 ?

     // VerilogA for zakir_sim1, bb_prereg_ldo, veriloga

    `include "constants.vams"
    `include "disciplines.vams"

    module trim3bits(sel);
    output [2:0] sel;
    electrical [2:0] sel;

    parameter real trim[2:0] ={0,0,0};

    analog begin

    V(sel[2]) <+ trim[2]*1.1;
    V(sel[1]) <+ trim[1]*1.1;
    V(sel[0]) <+ trim[0]*1.1;

    end

    endmodule p, li { white-space: pre-wrap; }

    Begin Incremental Netlisting Oct 8 16:44:23 2013

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    "ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'I6' in design 'zakir_sim1/test1/schematic'. Ensure that argument to this function is a valid terminal name and netlist again.\n\n"

    End netlisting Oct 8 16:44:23 2013

    ERROR (OSSHNL-514): Netlisting failed due to errors reported before. Netlist may be corrupt or may not be produced at all. Fix reported errors and netlist again.

    ...unsuccessful.

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