How to config the uart of nRF9160 sip

[bbslhb]

Hello.

I have a nRF9160DK.

I want to try this uart example: https://github.com/Rallare/fw-nrfconnect-nrf/tree/nrf9160_samples/samples/nrf9160/uart

I want to config the nRF9160 uart pin to P0.17 P0.18 P0.19 and P0.21 so I can communicate with nRF52840 on the nRF9160DK through uart.

I changed the uart0 pin config in nrf9160_pca10090.dts files in zephyr and nRF52_P0.13 and nRF52_P0.24 already set to 1 but nRF9160 uart can't work with P0.17 P0.18 P0.19 and P0.21 pins.

Can you tell me how to config uart0 pin config of nRF9160.

[bbslhb]

The nRF52840 uart config change can be proved OK.

Problem is on nRF9160 uart side.

[Håkon Alseth]

Hi,

 

Could you try applying the same .overlay to the secure_boot example, then flash that one as well?

 

Kind regards,

Håkon

[bbslhb]

Hi, Alseth.

Thanks for your reply.

Problem solved.

Pin config change in dts file is necessary.

Dts file will take effect after you "Close Solution" and then "Open nRF Connect SDK Project"