Modem Shell with PPP and Dynamic Uart Change

[Shaik Arif]

Hi,

We have nRF9160 product and want to use it with Modem Shell firmware application with enabling PPP. It worked with default UART configuration (UART0 as PPP, UART1 as shell).

The question is are we able to change UART configuration dynamically. Let's assume that in time t, we want UART1 as PPP, UART0 as shell. Is it possible, if so, how?

[Hakon]

Hello,

Is it possible, if so, how?

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/hardware/pinctrl/index.html#dynamic-pin-control;

"Dynamic pin control should only be used on devices that have not been initialized. Changing pin configurations while a device is operating may lead to unexpected behavior. Since Zephyr does not support device de-initialization yet, this functionality should only be used during early boot stages."

So if you want to change pins, you need to reset the device and choose pins while initializing the drivers.