I2C issue in v2.6.0 SDK

RE: I2C issue in v2.6.0 SDK

Vidar Berg — Fri, 05 Apr 2024 13:49:10 GMT

I2C problems in SDK v2.6.0 on nRF5340DK

RE: I2C issue in v2.6.0 SDK

vladimir.k — Thu, 04 Apr 2024 05:51:22 GMT

Yes, Windows 11, toolchain 2.6.0, SDK 2.6.0, VS code extensions, nrf5340_nrf5340_cpuapp_ns. Easy way to reproduce:

1) Create new application from blinky sample, build, flash, the LED is blinking.

2) Add string CONFIG_I2C=y to the prj.conf. Build, flash, LED is turned off all the time.

With toolchain 2.5.2 and SDK 2.5.2 everything is working (not only this simple sample, but I2C communication itself).

RE: I2C issue in v2.6.0 SDK

bobdk — Wed, 03 Apr 2024 15:55:42 GMT

Are you also using Windows? I don't know if it is related, but I also have trouble debugging simple programs on a nrf9160DK, but debugging a nrf52840dk (without TFM) works

RE: I2C issue in v2.6.0 SDK

vladimir.k — Wed, 03 Apr 2024 13:37:15 GMT

Same problem is on the nRF5340 DK with v2.6.0 SDK. After enabling CONFIG_I2C the board starts to reboot with unknown error. After switching to v2.5.2 SDK the problem is gone.

RE: I2C issue in v2.6.0 SDK

kuchx — Mon, 25 Mar 2024 14:55:44 GMT

Oh okay. I guess I'll mark this as an answer although the issue still exist.

Thanks for your input Elfving!

RE: I2C issue in v2.6.0 SDK

Elfving — Mon, 25 Mar 2024 14:48:49 GMT

Ah, I see.

Then it is best to notify Circuit dojo about this, and thanks for doing so 🙂

Well done guys, hopefully circuit dojo can contact us and we'll find a solution.

Regards,

Elfving

RE: I2C issue in v2.6.0 SDK

kuchx — Mon, 25 Mar 2024 08:12:00 GMT

I also can confirm, that the same code runs on 9160DK but causes problems on Sparkfun nRF9160 Feather

[quote userid="103347" url="~/f/nordic-q-a/109279/i2c-issue-in-v2-6-0-sdk/475392"]Does it do so rather immediately as well?[/quote]

If you mean when the reset appears, than yes, the program immediately crashes and resets

Andris

RE: I2C issue in v2.6.0 SDK

bobdk — Sat, 23 Mar 2024 16:49:58 GMT

It works for me on a 9160DK (I used at blinky sample and added CONFIG_I2C=y). The problem I see is on a circuit dojo nrf9160 feather. I have reported it to Circuit dojo, Jared Wolff as well. Possibly the problem is only when building on the windows environment. Maybe it has to do with the fact that lis2dh and pcf85063a devices are part of the feather.

RE: I2C issue in v2.6.0 SDK

Elfving — Fri, 22 Mar 2024 13:01:30 GMT

[quote user=""]When I enabled `CONFIG_I2C=y` in .conf file project built just fine but after programming I checked the current profile which had strange pattern so I enabled serial output and noticed that application constantly resets itself. [/quote]

Does it do so rather immediately as well? I don't think I am seeing this on my side with a 9160DK. Does any of you have a 9160DK that you can test this out on as well?

And if not, could you send me a hex of this built for the 9160DK, that I can test here?

Regards,

Elfving

RE: I2C issue in v2.6.0 SDK

Elfving — Fri, 15 Mar 2024 12:35:39 GMT

Thanks for reporting guys!

I am looking into it.

Regards,

Elfving

RE: I2C issue in v2.6.0 SDK

bobdk — Thu, 14 Mar 2024 15:04:23 GMT

Same problem on the similar circuit dojo nrf9160 feather v4.