Thingy:91 nRF52840 UART configuration

RE: Thingy:91 nRF52840 UART configuration

JONATHAN LL — Fri, 28 May 2021 15:31:39 GMT

Hi,

P6

5 = A6 = P0.28	3 = C9 = P0.26	1 = E9 = P0.06
6 = A7 = P0.30	4 = D9 = P0.27	2 = D10 = P0.05

We have the example here https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/uart_example.html?cp=8_5_3_4_5_47 and it should be the same procedure as in that example, i have not tested this my self on a thingy 91 with the nRF5SDK.

Regards,
Jonathan

RE: Thingy:91 nRF52840 UART configuration

Shivek — Wed, 26 May 2021 13:55:42 GMT

Hi Jonathan,

Thanks for the links. I went through these links but unfortunately these links are associated with getting the pins accessed from nrf9160 not from nrf52840, on top of that these links talk about device tree structure of Zephyr whereas I am using Softdevice . To be more transparent, I want to get access to UART peripheral from nRF52840 on Thingy:91. So, I thought I may use the spare pins available from nrf52840 which is mentioned in my first post. But I still not getting any response from UART.

I tried monitoring UART with scope on pin 5 and 6 of port P6 of Thingy:91 as described in Thingy:91 schematics

But I was not sure about which pin is number 6 and 5. So, I had to check them all.

So, I would really appreciate if you can help me with the UART configuration from nRF52840 (using Softdevice APIs).

Regards,

Shivek

RE: Thingy:91 nRF52840 UART configuration

JONATHAN LL — Wed, 26 May 2021 12:56:00 GMT

Hi Shivek,

There is a similar case here Thingy91 UART External communication - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com) and here Inputs via GPIO on the Thingy:91 - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com) that can be of intrest.

How have you connected to the pins?

Regards,
Jonathan