UARTE

[Elbert]

In UART async mode (CONFIG_UART_ASYNC_API=y) the UART transmit data and receive callback works fine. I've been able to set up the callback and enable the rx.

After switching to UARTE (CONFIG_NRFX_UARTE0=y), the UART transmit once, but the event handler is never called.

UARTE is set up like example from: "C:\ncs\v2.0.0\zephyr\samples\boards\nrf\nrfx_prs\src\main.c", the baudrate is set to 9600. nrfx_uarte_init() and nrfx_uarte_tx() show NRFX_SUCCESS. When nrfx_uarte_tx_in_progress() call is added, just after nrfx_uarte_tx(),  nrfx_uarte_tx_in_progress() hangs without any further (log) message.

Is it possible to implement UARTE like this on nRF9160 development board?

Do you need to enable rx on UARTE?

Is there any working sample for nRF9160?

[Elbert]

prj.conf contains the configuration option CONFIG_UART_ASYNC_API=y.

This option is also present in the .config output file after pristine build. Other options in the .config are CONFIG_UART_0_NRF_UARTE=y and CONFIG_NRF_UARTE_PERIPHERAL=y.

Does this mean that it is NOT necessary to use prj.conf CONFIG_NRFX_UARTE0=y to enable UARTE mode?

If so, can I use the standard functions (to set up the callback routine and enable the uart rx) and be in UARTE mode?

How can I verify running in UARTE mode?