Need Two UART for GPS and GSM.

[chirag.aumraj]

Hi,

I Used nRF52832-CIAA-R in my ongoing product development.

I need two UART and one I configured PIN(P0.6 and P0.8) for GSM.

Can I use any GPIO pin as a UART for GPS? 

Thank You.

[chirag.aumraj]

Hi Jakub,

Thanks for your response.

For point #2 how can I reconfigure UART PINs for the second UART, Please share reference schematic or Doc in which two UART configure or use.

For point #3 can we use these PINs for the second UART or not?

Thank you.

[Einar Thorsrud]

Hi,

2. You simply initialize the driver and reinitialize it with a new configuration using the other pins whenever you want to switch UART pins.

3. No. You should not use any of the pins marked as "Low drive, low frequency I/O only." for UART. (You cannot use the radio and UART simultaneously if you do.)

[SKV]

2. You simply initialize the driver and reinitialize it with a new configuration using the other pins whenever you want to switch UART pins. Is this means that we should use app_uart_init() and app_uart_close(). For to use Two UART. Is this method correct? or any other method?

[Einar Thorsrud]

Yes, that is correct. The nRF52832 only have one UART peripheral, but you can choose which pins it is connected to when you initialize the driver. Therefor you need to disable and reinitialize the driver when you want to connect to another device connected to other pins.