LAUNCHXL-CC1312R1: Virtual UART COM port not working

Part Number: LAUNCHXL-CC1312R1
Other Parts Discussed in Thread: CC1312R

I have an application that needs to communicate with the board using virtual USB COM port. I do see them on device manager. However I am unable to access them via my application. Application is a windows application (.exe ), which would access the COM port and send some data.

I am able to program the device using the USB in CCS(XDS110).

I was able to use a (USB to TTL converter )using Arduino to do the same on UART pins directly DIO12 and DIO13.

. I have tried closing the CCS before accessing UART port, resetting the board. But its still not working. Can anyone please help me.

over 3 years ago

0 TER over 3 years ago

TI__Guru**** 317180 points

This thread is missing some information:

AM said:
However I am unable to access them via programming.

How do you try to program the device through UART?

0 AM over 3 years ago in reply to TER

Prodigy 20 points

Could you please refer to my post now, I have added more information.

By programming, I had meant the my application. Application is a windows application (.exe ), which would access the COM port and send bytes

0 TER over 3 years ago in reply to AM

TI__Guru**** 317180 points

Meaning your question is basically how to access a vitual com port from a windows application? If so, this forum does not cover that.

0 AM over 3 years ago in reply to TER

Prodigy 20 points

Application is able to access all virtual com ports except for the com port of CC1312R launchpad one. So I was guessing the issue is some setting on TI Launchpad side. My question was the issue that Its not able to work as UART Rx/Tx via the virtual COM port (which is XDS110 one as detected in device manager)

0 TER over 3 years ago in reply to AM

TI__Guru**** 317180 points

This is not on the Launchpad side. Most likely your application that isn't able to handle a virtual port.

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LAUNCHXL-CC1312R1: Virtual UART COM port not working