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9 years, 1 month ago.
Freescale FRDM-K22F / KL25Z disconnect when updating the program/flash .. Why ?
Hi
I'm using Nucelo and FRDM development-boards.
One thing that is quite annoying with the Freescale boards are that they ALWAYS reboot during update and disconnect the "drive" .. Which is NOT the case with the Nucleo board.
Is it possible to use a better firmware than 0221_k20dx128_k22f_0x8000.bin
/Jesper
1 Answer
9 years, 1 month ago.
Technically no reason for it, at least not for the serial port, the USB drive needs to disconnect due to how buffering works in windows (and other OS). IIRC also te Nucleo ones do that, but indeed Serial port should be able to stay enabled. I know some targets have been updated to keep the serial port enabled, but most don't.
Now if you are using Teraterm for example, do alt+i, alt+n, <enter>, alt+b quickly in a row, should reduce the pain :). (Disconnects current connection, makes new one, resets board to start new one).