Zephyr I2C not working on nrf52833dk

RE: Zephyr I2C not working on nrf52833dk

Kesims — Sat, 06 Jan 2024 18:04:01 GMT

This is now a dead thread, but in case anyone stumbles on this issue, just like me, if your uC supports it, you can do that by adding a bias-pull-up property to the pin configuration.

An example:

i2c1_default: i2c1_default {
    group1 {
        psels = <NRF_PSEL(TWIM_SDA, 0, 2)>,
                <NRF_PSEL(TWIM_SCL, 0, 3)>;
        bias-pull-up;
    };
};

RE: Zephyr I2C not working on nrf52833dk

pajd0x — Wed, 08 Feb 2023 11:54:26 GMT

Hi, I am currently trying to workout the I2C interface with a different sensor and I encountered the same problem. Could you please post your solution .overlay file? Thanks in advance.

RE: Zephyr I2C not working on nrf52833dk

dejans — Mon, 08 Aug 2022 14:12:08 GMT

Hi,

I am glad that you found a solution which works for you.

Best regards,
Dejan

RE: Zephyr I2C not working on nrf52833dk

MauroFMedina — Sat, 06 Aug 2022 13:03:31 GMT

Hello, I found the issue. I needed to add the pull up resistor to SDA and SCL lines. You can do this in your .overlay file.

RE: Zephyr I2C not working on nrf52833dk

MauroFMedina — Fri, 05 Aug 2022 15:28:28 GMT

Thanks for the response. I'm using Nordic's nrf52833 development kit so it shouldn't be a hardware problem, right?

Are the default pin control configuration SDA: P0.30 and SCL:P0.31 correct? Maybe I need to connect to other pins?

Thanks

RE: Zephyr I2C not working on nrf52833dk

dejans — Fri, 05 Aug 2022 15:11:40 GMT

Hi,

Regrading formatting, You can insert code snippets by clicking on Insert -> Code when you make a reply.

You can find more information about your error in this discussion.

Best regards,
Dejan

RE: Zephyr I2C not working on nrf52833dk

MauroFMedina — Thu, 04 Aug 2022 22:00:55 GMT

sorry if the formating is awful, I don't know how to make a poper post.