I've got a MAPS-K22F+Dock (from Manley) on hand, there is an K20DX128 with USB port on the Dock board which supports OpenSDA and emulated serial port. Initially I found maybe the OpenSDA bootloader is V2.0 because there is a bootload.htm file after entering bootloader mode, and it already has K64F MBED app in it. My target processor is K22F, which needs bootloader V2.1 to support. After downloading CMSIS-DAP-BOOTLOADERV2.1.zip, and copy/paste k20dx128_bootloader_0x8000.bin (in the zip) to MSD drive in bootloader mode, and re-plug the USB, nothing happened, the bootloader still remain V2.0. I've tried using K22F app under V2.0 but failed (No MBED devices detected).
But it is a bit weird that I can debug K22F projects in KDS 3.2 with OpenOCD and 0226_k20dx128_k64f_0x5000.bin.
Is there any trick to upgrade OpenSDA bootloader from 2.0 to 2.1?
Thanks in advance.