NanoSim - Fast Analog SPICE Simulation

Authors: Jinsik Yun, Dr. Dong S. Ha

NanoSim is one of the popular Fast SPICE simulator. It can be use for the whole chip SPICE simulation since NanoSim's execution speed is much faster than Tradition SPICE tool such as HSPICE.

1. SPICE Netlist

• Exract the HSpice netlist using HSpice Netlist Extraction with Cadence
• This is the example SPICE netlist: updown_counter.sp

2. Configuration File Setup

• Exract the HSpice netlist using HSpice Netlist Extraction with Cadence
• Make a configuration file as shown in the below picture. In this tutorial, let me name it as nanosim.cfg
  
  
   

3. Start NanoSim

• Initialize NanoSim by typing this command at prompt:
  > NanoSim
• Type this command:
  >nanosim -nspice ./updown_counter.sp -C ../nanosim.cfg -o ./updown_counter
  
  • -nspice: spice file name
  • -C: Configuration file
  • -o: output files prefix

4. Final Result

• As a result, you can get the waveform results.
  You can use CScope for viewing the waveform result.: CScope tutorial
  
  • Note: Please make sure that the waveform file extension is fsdb