96Boards Nitrogen - No USB Serial Port

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lawrencek52
Pre-kindergarten
Pre-kindergarten
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Joined: Fri Feb 08, 2019 6:17 am

96Boards Nitrogen - No USB Serial Port

Post by lawrencek52 » Thu Feb 21, 2019 12:31 am

Hello:

I am having a small challenge with my Nitrogen board. When I plig the board in the MBed disk drive shows up, and I can drag and drop proigrams, or run gdb with no problems. However the second Serial Device (COM3xx) is not visible. When I plug in a Freescale Freedom board, or a STM32F4xx board the Mbed and serial devices show up, but no serial device when I plug in the Nitrogen board.

I have checked that the serial signals from the nrf51 do connect to the debug micro-controller, but they don't seem to be available over the USB connection.

How do I access the COM port? Do I need to use a USB-Serial adapter and connect to the actual serial connectors on the Nitrogen board?

-Lawrence-

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