nRF9160 serial communication with UART

RE: nRF9160 serial communication with UART

Martin Lesund — Mon, 03 Aug 2020 07:53:47 GMT

Hi duxingland,
Please make a new separate ticket for your question.

Since this is an old thread and your question is unrelated to OPs question.

RE: nRF9160 serial communication with UART

duxinglang — Mon, 03 Aug 2020 07:47:31 GMT

I use UART communication between 52840 DK board and 9160 DK board, and I find a problem here. I output 9 bytes of data from the 52840 development board, but the 9160 development board can only receive 8 bytes of data. When I connect to PC with UART cable, we can see that 52840 actually outputs 9 bytes. Why can my 9160 only accept 8 bytes of data at a time?

RE: nRF9160 serial communication with UART

nordicuser91 — Wed, 04 Dec 2019 00:03:45 GMT

Thanks Martin, I really appreciate it.

RE: nRF9160 serial communication with UART

Martin Lesund — Tue, 03 Dec 2019 13:28:52 GMT

Hi Nordicuser,

Please check out this thread on how you can change the code on the board controller.

Best regards,

Martin L.

RE: nRF9160 serial communication with UART

nordicuser91 — Tue, 03 Dec 2019 00:47:42 GMT

Hi IBS,

Your question from the post is really helpful and seems to be identical to my problem. Could you please share the code. I would really appreciate it.

Best Regards

NordicUser

RE: nRF9160 serial communication with UART

IBS — Tue, 04 Jun 2019 19:12:03 GMT

Alright i will try that, thank you for your help!

Best regards,

Ivar

RE: nRF9160 serial communication with UART

DevinCallahan — Thu, 30 May 2019 21:53:25 GMT

You need to configure the 52840 chip on the dev-kit. It is what controls where a bunch of the pins on the 9160 get routed to. That chip has a zephyr board defined for it already here: "zephyr/boards/arm/nrf52840_pca10090" so you'll need to build a project for that board and load it (be sure to set the programming switch on the devkit so it targets the 52840 and not the 9160).

You can look at board.c in that directory for the code that actually configures the IO, and Kconfig in that directory contains all the options and some description of what they do.

Hope that helps!

RE: nRF9160 serial communication with UART

IBS — Mon, 27 May 2019 13:37:58 GMT

The code is based on this UART sample: https://github.com/Rallare/fw-nrfconnect-nrf/blob/nrf9160_samples/samples/nrf9160/uart/src/main.c