In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: Alex, I don't think a PC could generate the timing that is required. That is why all the programmers have a microcontroller on them. Fluffy and Fluffy2 are the only other programmers that I am aware of. Here is the document that shows the timing to program the SX. Maybe you can build something yourself http://www.parallax.com/Portals/0/Downloads/docs/prod/sx/DeviceProgramming.pdf Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=351313#m351318 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2009 (http://www.dotNetBB.com)