WinSpice Windows Simulation Program with IC
Emphasis
· The official WinSpice page is found at: http://www.winspice.co.uk/
· The WinSpice example simulations from the books are available in a single zip here.
· These files run on version 1.05.07 which can be downloaded here.
· Note that there appears to be some problems running some of these simulations using WinSpice version 1.06.
· The pages discussing WinSpice from the second edition (2005) of CMOS are seen in winspice.pdf (6 pages).
· See also LTspice for simulation examples from CMOSedu.com with schematics!
Some useful things to get started:
1) use the Open menu item to select a SPICE netlist
2) type run on the command line to run a spice file
3) type display to view the vectors after a simulation
4) typing plot Vout V(1)
will plot the voltages Vout and V(1)
5) type destroy all to delete simulation results
6) type edit to edit the current netlist;
exiting, after editing, reloads the netlist.
7) typing help all shows commands that you can
use
Electric VLSI Design Information
· Here is the Electric setup where the Run Program path seen below is (for example): C:\Program Files\OuseTech\WinSpice\wspice3.exe (note that it’s wspice3.exe and not winspice3.exe).
· Note that while the Run Program field is not case sensitive the “with args:” field is case sensitive (so use the uppercase names as seen)
· Make sure you are using the version above, 1.05.07.
· WinSpice doesn’t alias GND to 0 so you may have to add a statement of SPICE code to the netlist like VGND GND 0 DC 0 to ensure GND is connected to ground.
· If you do a simulation that doesn’t output plotting data, like an operating point or transfer function analysis, then you have to view the results, in the raw file, use a text editor like wordpad.
· It’s easier to see errors if you change to the interactive mode (use –i instead of –b) but then you have to close the WinSpice window prior to Electric’s probe running.
· You can view the output file (*.out) to see errors or warnings (especially if the simulation doesn’t run). Use Ctrl-f and search for “error” if the simulation is large.
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CMOS Circuit Design, Layout, and Simulation
CMOS Mixed-Signal Circuit Design