When following the Getting Started guide for FRDM-KW40Z (NXP Freedom Development Platform for Kinetis |NXP ), upon reaching step 3 "build and run", using ANY of the sample projects, during the step to download and debug (see http://cache.nxp.com/files/32bit/doc/user_guide/MKW40ZSMACSW303QSG.pdf ), I get a message box that says "Fatal error: CPU did not power up. Session aborted." I notice in the debugger log that the last line before an error is always "Loading the CMSIS-DAP driver ". Both boards definitely work with the pre-programmed sample program so I don't think they came dead on arrival. Does anyone have any advice?