Simcir the circuit simulator

Version 1.2.1

Last Update: 2012/1/14

>> New Site (2012/1/14)

Simcir is a simple simulator of logic circuit.
Let's try your logic!

• run online
• download (source|binary)

System Requirements

Simcir requires a browser or Java Runtime Environment that support Java1.1.
Successfully tested on following environment.

• Sun JDK/JRE 1.4.2

Usage

1. Choice a device from the toolbox and move to right side.
2. Connect them by drag operation.
3. Click an input node to disconnect.
4. Move a device back to the toolbox if you don't use.
5. Double click the label to edit.

Note

• To simplify the model, all devices transfer only voltage but current.
• Please don't make infinity loop like a vibrator. :-)
• When logic gate's input node is not connected, it treated as pulled down.

How to run

• Run as application

simcir.jar is executable-jar file. double click the file from GUI, or execute from console.

$ java -jar simcir.jar

• Run as applet

You can set the file of default circuit as parameter 'file'.

Example

<applet code="simcir.Main" width="600" height="400" archive="simcir.jar">
<param name="file" value="sample/rs-ff.cml"/>
</applet>

History

v1.2.1 (July 6th 2000)

• Append label edit feature.

v1.2 (March 7th 1999)

• Apply Java1.1 APIs.
• Append cut, copy and paste operation.
• Append save (need to run as application) / load function.

v1.1 (February 7th 1999)

• Replace device select buttons with a toolbox.
• Improve graphic performance.
• Add the NOT gate.
• Fix many bugs.

v1.0 (November 30th 1998)

• Change signal transfer model.

v1.0b (November 12th 1998)

• Original version

Copyright © Kazuhiko Arase