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How to suppress Spectre simulation for digital design?

Shengkui Gao
I am using Cadence 6.1.2 and NCSU_analog_parts library to do digital design. When I use spectre to simulate my circuit, it costs a long time (40 minutes at least) and a large file generated (more than 15MB). So I'd like to know how to suppress the simulation of Spectre？ Because I think it may do the full calculation for each part of my circuit. And do someone know how to set spectre to do the digital simulation directly? Now I have to generate the analog waveforms for each bits of my output and then use analog2digital function to transmit it to digital waveforms, then bus them... I am really a beginner in using Cadence 6 and Spectre, I used to use cadence 5 and generate to Hspice netlist, then go to use HPSICE or NANOSIM to do the simulation. Now the NCSU libraries does not support HSPICED models using in Cadence 6, I have to use spectre........
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  • Hi Shengkui

    Do you mean that you would like to use spectre to simulate verilog/vhdl blocks? Actually spectre is unable to do this. It is only meant for analog/RF simulations. For mixed-signal simulations, please use our AMS Designer simulator. I am guessing that "suppress the simulation of Spectre" means to "reduce simulation time". In ADE-L form, please go to "Setup->High Performance Simulation". For "Simulation Performance Mode", you can choose either "Turbo" or "APS" to speed up your simulation. Please note that you will need the appropriate licenses in other to use these modes.

    Please note that for AMS Designer, you will need to install INCISIV package.

    Best regards
    Quek

     

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  • Hi Shengkui

    Do you mean that you would like to use spectre to simulate verilog/vhdl blocks? Actually spectre is unable to do this. It is only meant for analog/RF simulations. For mixed-signal simulations, please use our AMS Designer simulator. I am guessing that "suppress the simulation of Spectre" means to "reduce simulation time". In ADE-L form, please go to "Setup->High Performance Simulation". For "Simulation Performance Mode", you can choose either "Turbo" or "APS" to speed up your simulation. Please note that you will need the appropriate licenses in other to use these modes.

    Please note that for AMS Designer, you will need to install INCISIV package.

    Best regards
    Quek

     

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