I've never programmed a KL25Z or any ARM microcontroller for that matter. I've been following instructions from http://www.pemicro.com/opensda/ and it says "hold in the reset, connect the board to my PC, then release reset" to get the OpenSDA chip to act like a USB stick so I can see and upgrade the software on the OpenSDA chip. When I release reset, the tri-color LED swaps 8 colors and fades to multiple colors like normal. Nothing seems to happen different from when I don't hold reset when connecting.
I installed the drivers from PEmicro and tried Windows 7, Ubuntu, and Windows 8. All nothing. I looked thorugh http://cache.freescale.com/files/32bit/doc/user_guide/OPENSDAUG.pdf as well. Stickers on my board say 700-27556 rev A, SCH-27556 rev F, serial number EB14400292
I'm not sure I need to be following PE Micro instructions at all. Maybe you can tell me what to do so I can connect my computer to my board. I do have KDS, Codewarrior, SDK, and PE all installed. My blink KDS program builds just fine. Now I want to connect and program the board. I'll buy a programmer interface if I need to. What do you recommend?
Any more clues? Thanks, Ray
My KL25Z project page: https://github.com/RayMetz100/TextWalkieTalkie/wiki