Homework 1 - Notes about IRSIM


  1. "irsim" usage
  2. Run irsim by ":rsim   TECH_FILE.prm YOUR_FILE.sim -YOUR_COMMAND_FILE.CMD". 

    Run IRSIM in Magic. Be sure you have the Magic window activated and put the cursor on Magic before your type the command.

  3. Technology Files

    The technology files for 0.6um, 1um and 2um technology are all available

    File names for 0.6um:  scmos0_6u.prm

    for 1um:  scmos1_2u.prm 

    for 2um:  scmos2u.prm

    You may download these files to your own directory.

     

  4. IRSIM Netlist File Format Tips (important)

    For your convience, you can write the first line as
      |  
    A vertical bar only!

    If you want to use "|  units: XXX tech: XXX format: XXX" or anything else as the first line, make sure you know the exact format of it. Note there is a space after "|". IRSIM is very strict on input format because normally the files are generated by Magic not by hand. Sometime, the wrong format files are still accepted by IRSIM, but you might get totally wrong results.

     

  5. Print your waveforms in IRSIM
  6. In IRSIM Analyzer window, go to the 'print' menu and select 'file'. You will be asked for a filename. It is on the bottom of the window. A default name is offered in (). You can simply hit return or input any file name with the extension of ".ps". The waveforms are saved into the postscript file. Then, open the ps file in "image viewer" to check the waveforms. You can print the image in "image viewer". Also, you can use "lp" command to print the ps file directly.