I2C on nRF52840 DK and Dongle

RE: I2C on nRF52840 DK and Dongle

Kenneth — Mon, 07 Oct 2019 06:27:06 GMT

Updated now

RE: I2C on nRF52840 DK and Dongle

Jason — Sun, 06 Oct 2019 18:25:50 GMT

404 with all of those links.

This infocenter.nordicsemi.com page can’t be found

No web page was found for the web address: infocenter.nordicsemi.com/.../twi.html

RE: I2C on nRF52840 DK and Dongle

Kenneth — Thu, 01 Nov 2018 13:56:17 GMT

Hi Darren,

The detailed answer to your initial question is that pins used by I2C is configured through:
https://infocenter.nordicsemi.com/topic/ps_nrf52840/twi.html?cp=3_0_0_5_28_7_16#register.PSEL.SCL
https://infocenter.nordicsemi.com/topic/ps_nrf52840/twi.html?cp=3_0_0_5_28_7_17#register.PSEL.SDA

You can refer to the documentation for the dongle or DK on how to physically connect to the pins:
https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52840-Dongle
https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52840-DK

Best regards,
Kenneth

RE: I2C on nRF52840 DK and Dongle

DazzaNL — Thu, 01 Nov 2018 08:31:23 GMT

Hi Kenneth,

Thank you for your answer.

While the use of I2C does depend on the chip, my question was if the relevant lines are available on the DK and/or the Dongle. This is why I asked if any of the GPIO lines can be used for I2C.

The availability of these connections is entirely dependent on the design of the board, as if they aren't available to the user then I can't use them. Makes no difference what the specifications of the chip are, if I can't connect a wire to it then it's useless.

awneil If you read my question I am asking if the DK and Dongle support I2C (i.e. are the physical connections available), not the chip. Oh, and putting something like "datasheet" is just condescending (that means talking down to someone, save you having to find a "dictionary")

Darren.

P.S. This question is now irrelevant as due to awneil 's unhelpful, condescending and patronising reply I will be using a different supplier.

RE: I2C on nRF52840 DK and Dongle

Kenneth — Thu, 01 Nov 2018 07:52:26 GMT

Hello, it is as awneil already writes: this depends on the chip not the board. And the chip support I2C that can be mapped to any pins.

In general it is recommended to use the nRF52840-DK, for instance the pins are more easily mapped accessible on pin headers, there are various buttons and leds that provide the examples with more functionality out of the box, and more importantly the DK contains a SEGGER j-link debugger and programmer on-board that can be used to program the onboard nRF52840 or third party pcb. In general use the DK for development, and the dongle for demo.

Best regards,
Kenneth

RE: I2C on nRF52840 DK and Dongle

awneil — Wed, 31 Oct 2018 16:22:09 GMT

Functionality of pins is governed by the nRF52840 chip - not the board.

So check the chip Product Specification (the "datasheet") for details ...