Want to use UART 1 with nRF9160 DK to print output on the console from another MCU

RE: Want to use UART 1 with nRF9160 DK to print output on the console from another MCU

Håkon Alseth — Thu, 27 Aug 2020 12:27:54 GMT

Hi,

I'm glad to hear it worked.

[quote user="Parth Sagar"]Do you have any suggestions to factory reset nRF9160DK?[/quote]

You can erase the application, by calling "nrfjprog -e -f nrf91". This will then leave the nRF9160 application flash blank. Note: this does not do anything with the modem itself, it only erases the application.

Kind regards

Håkon

RE: Want to use UART 1 with nRF9160 DK to print output on the console from another MCU

Parth Sagar — Wed, 26 Aug 2020 14:25:08 GMT

Hi Hakon,

Thank you very much for your recommendations. I followed your instructions on another board and it works. Still not sure what was wrong with my previous board. Do you have any suggestions to factory reset nRF9160DK?

RE: Want to use UART 1 with nRF9160 DK to print output on the console from another MCU

Håkon Alseth — Wed, 26 Aug 2020 07:52:10 GMT

Hi,

Did you try to use P0.10 and P0.11 as RXD/TXD on UART1?

As mentioned, P0.01 and P0.00 are physically connected to another IC on the DK, so you cannot use those pins if you want to connect your own UART device. Do note that not all GPIOs are available to use freely on the nRF9160-DK, but P0.10 to P0.13 are available on the pin header. Here you can see the default configuration, and which pins are already in-use on the DK:

https://infocenter.nordicsemi.com/topic/ug_nrf91_dk/UG/nrf91_DK/board_controller.html?cp=2_0_5_4_6_0

Kind regards,

Håkon

RE: Want to use UART 1 with nRF9160 DK to print output on the console from another MCU

Parth Sagar — Tue, 25 Aug 2020 14:39:06 GMT

So this occurs when I add CONFIG_UART_1_NRF_UARTE=y in my config file

If its not needed to add (as you told earlier), then it wouldnt give any error.

RE: Want to use UART 1 with nRF9160 DK to print output on the console from another MCU

Håkon Alseth — Tue, 25 Aug 2020 14:29:50 GMT

Hi,

[quote user="Parth Sagar"]Do you think I need to add CONFIG_UART_1_NRF_UARTE=y in my cfg file?[/quote]

No need in ncs v1.3.0, as the dts has this peripheral enabled in the .overlay file.

Could you click where it says "tasks" in the SES text box, and select "output" and show what that states?

It might be that you need to delete your build folder, and regenerate the project. If that still shows errors, please post them to me.

Kind regards,

Håkon

RE: Want to use UART 1 with nRF9160 DK to print output on the console from another MCU

Parth Sagar — Tue, 25 Aug 2020 14:20:47 GMT

Thanks for the suggestion, but it dsnt work.

Do you think I need to add CONFIG_UART_1_NRF_UARTE=y in my cfg file?

If yes, then I am getting errors

RE: Want to use UART 1 with nRF9160 DK to print output on the console from another MCU

Håkon Alseth — Tue, 25 Aug 2020 06:59:28 GMT

Hi,

UART1 is by default on P0.00 and P0.01, and is connected to the SEGGER IC on the DK.

Can you please try to use another GPIO pair (like P0.10 and P0.11) and see if those work better?

Kind regards,

Håkon