NRF_LOG_BACKEND_UART_TX_PIN 6 with libuarte ?

[RixtronixLAB]

Dear Members,

Is it possible that

I use

NRF_LOG_BACKEND_UART_TX_PIN 6 with libuarte with UART0 TX pin 6 ? thanks

[Jørgen Holmefjord]

Hi,

NRF_LOG UART backed is hardcoded to use UART(E) instance 0. It is not possible to use any other UART library for UART(E) instance 0 together with NRF_LOG when the UARt backend is enabled. You can also not share the same GPIO for the UART TX pin, as NRF_LOG does not have any options to uninitialize the library/backend.

If you want to use the NRF_LOG UART backend together with libUARTE, I would recommend you to configure libUARTE on UARTE1 instance and use a different TX pin.

Best regards,
Jørgen

[RixtronixLAB]

So I will make a conflict with UART(E) instancee 0 if I use this line :

NRF_LIBUARTE_ASYNC_DEFINE(libuarte, 0, 0, 0, NRF_LIBUARTE_PERIPHERAL_NOT_USED, 255, 3);

[Jørgen Holmefjord]

Yes, if you have NRF_LOG enabled with the UART backend, this will conflict with LIBUARTE.