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8 years, 9 months ago.
After upgrading to buid 221 the COM disappear
I have updated a the FRDM K22F firmware from v.0203 to v.0221.
The operation completed correctly, but now I do not see the COM port.
If I change the USB port, I see the "Virtual Com Port", but connecting the USB cable to the SDA-USB port (near the Reset button) does not show any COM port connected, only the MSD drive "MBED".
I tryed to reboot the PC but nothing changed. If I reload the v.0203 the serial port is correctly shown, but if I reload again the v.0221... no COM port!
Thanks for any help Franco
Question relating to:
1 Answer
8 years, 9 months ago.
If it is under the Windows OS, try to reinstall mbed Windows serial port driver (after you update the firmware of your board): https://developer.mbed.org/media/downloads/drivers/mbedWinSerial_16466.exe
After that, when you plug your mbed board, it should show "Installing new hardware..... OK" and it should work.
Addition - Read the entire page for winserial driver: https://developer.mbed.org/handbook/Windows-serial-configuration
Regards, Miloje