I'm not sure whats going on but am having issues with getting the "set single_usb 1" command to work.  I have been installing Bootloader V1.012 into the LPC unit with jumper J27 installed.  I then remove the jumper with power on and it goes thru a process that looks like its copying the code into the shadow Boot ROM then see the "Up to Date message".  Unplugging the LPC unit and restarting MIOS Studio 2.4.2 seems to work properly.  When I query the core with only boot loader loaded, I see a mess