Missing implementaion of UART_CFG_FLOW_CTRL_RS485 in uart drivers

[Ulf Gerlach]

I am in trying to use the AT client sample with an RS485 interface on a custom Board with nrf9151.

Other than the API states (https:/https://docs.zephyrproject.org/apidoc/latest/drivers_2uart_8h_source.html/docs.zephyrproject.org/apidoc/latest/drivers_2uart_8h_source.html)  

there is no implemetation of UART_CFG_FLOW_CTRL_RS485 in uart-nrfx-uart/uart-nrfx-uarte.

How can ist be done otherwise.

[Hakon]

Hello,

I'm not sure if there is any other way to do this, other than implement this yourself at the moment. If you want I can submit a feature request internally.

[Ulf Gerlach]

That would be kind. As i saw in other posts I'm not the only one who wants to use the uart as RS485 interface. It think has been implemented in the modbus sample. But I could not figure out how it works. There it is part of the modbus protocol in (modbus_serial.c)

[Hakon]

I have created a ticket for this now. It can take some time before it is responded to.