UART Rx & Tx Signals routing

[shay]

Hi

I would like to connect the nRF52810 to 2 devices via UART interface by switching the Rx and TX GPIO pins by the software in realtime.

Is it possible? what is the method to do that?

Thanks.

[Jørgen Holmefjord]

Hi,

Yes, this is possible. Uninitializing the old UART interface and initializing it with new pins should be sufficient. How to do this depends on how you setup the UART interface (Registers, HAL, driver, app_uart library, nrf_serial library, libuarte library, etc.)

Best regards,
Jørgen

[shay]

Hi

Can you direct me to the specific document or code describing the uart usage such : 

1) uart first setup function

2) uart initialization fucntion

3) UART Registers setup function, etc

Thanks

[Jørgen Holmefjord]

You can find examples of using app_uart and nrf_serial libraries in the SDK. A simple example of using the UARTE peripheral through the registers can be found on this page. Usage of the UART driver can be found in the SDK documentation.