Hi everyone, I've still been working on a wireless sensor network. The receiver is complete and while working on the sensor nodes it seemed that a finite state machine would be a good way to organize the code (this is being done in asm). There's a lot of boiler plate code though and I went off on a tangent to solve that problem. What I ended up with is using scxmlgui to draw the state machine and use a python program to generate the assembly and include files from the XML description. The process works pretty well. After designing the state machine, the only implementation detail are the routines for each state and updating the event variable. I'm using this with a 16F88, but modification for 18F is possible. The code is at: http://matthew-miller.name/pic-fsm/pic_fsm_gen.tar.gz There's a state machine XML specification and I started out crafting the XML by hand (not too fun). But I found the scxmlgui program and it's a fairly good graphical designer. Hopefully this will be a useful idea to folks. Take care. Matthew --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .