In SX Microcontrollers, SX/B Compiler and SX-Key Tool, basicstampede wrote: All, thanks! I found my error. And a stupid error it was indeed. I had forgotten I2CSTOP SDA. With that added, it worked just fine. I found the Debugger very useful in helping find the mistake. Using debugger, I could see that value read was OK, but it was not getting written. Jonny Mac, thans for the files. I will study them. YES, I was shocked to see how much memory such a paltry code of mine used up. I definitely need to examine ways to make it more efficient, memory wise. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=295711#m295883 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)