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You usually do not need to update the firmware of CMSIS-DAP. CMSIS-DAP is debugging function done by NXP device on the Mbed board(GR-MANGO) and the firmware is downloaded into it. So, it's different from RZ/A2M software(firmware).
How to Update the firmware for GR-LYCHEE¶
CRP DISABLD drive will be displayed if you connect to PC while holding RST.
The update procedure as followings:
1) Delete CRP DISABLD drive firmware.bin.
2) Copy the "lpc11u35_gr_mango_20191212.bin" file to CRP DISABLD.
If the CRP DISABLD drive is displayed without pressing the Reset button, the DAPLink firmware may not have been written.