In SX Microcontrollers, SX/B Compiler and SX-Key Tool, gator wrote: I tried 3.3.0, 3.5BETA, 3.2.3 and SX52key.exe (yes, an old one). I have two PCB's, same layout, two different SX52 chips. On the PCB are just the 10k resistor and some block condensators, SMD only. Basically I used SX-Key Rev. F in the past to flash approx. 1,000 chips. I bought a new USB SX-Key Rev. B yesterday. And I used several types of power supplies. I know that My device section is: sx52, oschs3 After programming the status shows up with "Running" and all buttons except Reset are gray. I have no clue what to do... Is there any documentation about the signals I could trace with a scope? Thanking in advance for every advice. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=432894 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2010 (http://www.dotNetBB.com)