In SX Microcontrollers, SX/B Compiler and SX-Key Tool, g_daubach wrote: No, it can't. The SX-Key USB is powered from the USB port but this supply is not fed through to the target's Vdd. Therefore, you need a separate power supply for the target as programming only works when the target SX is powered up in order to communicate during the programming process. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=280275#m288032 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)