3 years, 7 months ago.

Virtual COM port on FRDM-K64F working only for 2-4 minutes.

I am facing problem with FRDM-K64F board. I am running simple UART program which is working fine. But After 2-4 minutes UART stops transmitting data. It happens with every program. UART stops working after 2-4 minutes. Can anyone help me on this?

Some suggestions as below: 1, How about other platforms? Is this issue only with K64F or same issue with other platform. 2, Did you try change another USB cable? 3, If you are running with Windows OS. Try reinstall the mbed serial drivers. https://docs.mbed.com/docs/mbed-os-handbook/en/5.3/getting_started/what_need/

posted by Fred Li 10 Feb 2017

I have two mBed enabled board. It happens on both. I have updated latest serial driver.

posted by Nilesh Vora 10 Feb 2017

Was the K64F UART working before? What version of mbed.lib are you using? Some things in the K64F broke after v127. That was the last version to work with mbed-rtos, EthernetInterface and SDFileSystem all together.

posted by Kevin Braun 10 Feb 2017
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