In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Jon Williams wrote: You may damaged the USB2SER adapter as it is not compatible with the SX-Key programming port. As has been stated several times in this thread you must use a I/O pin for communications; in my demo program I'm using RA.1. I connect this to the USB2SER.RX pin with a wire (22-guage solid wire works well). I also connect the USB2SER.Vss pin to Vss of my circuit. With the proper serial mode (True), the program works fine. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=79610#m80608 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)