> http://www.fatesoft.com/s2f/ > Not sure that it can be extended to PIC assembly though. It may be possible to use something like some UML tools that will derive sequence diagrams etc from source code. The 'Creating a UML project by Reverse Engineering' comes to mind that is on the Netbeans site. http://testwww.netbeans.org/kb/55/uml-re.html I don't know if the java can be modified to deal with ASM instead. Probably not worth it for around 1000 lines, but longer term a larger project or very convoluted code might make it worth looking at. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist