Lesson 6 from nrf connect sdk fundamentals, i2c exercise 1 error.

[brando14]

hello, I am currently taking the nordic nrf connect course and I am doing exercise number 1 of lesson number 6 regarding i2c, using nordic nrf5340 together with the X-NUCLEO-IKS01A3 temperature sensor.

Lesson 6: Exercise 1

I have been following the process to run the code, however, the following error appears once I manage to display the example.

According to what the course tells me, the current temperature value should be printed in both Celsius and Fahrenheit, however it seems that there is no connection with the sensor.

Another reason that occurs to me is that before doing this they told me that I should configure the sensor as a secondary i2c node, adding an address, I put the one they indicated but I don't know if I should change it.

And well I have been looking for how to obtain that address, since they tell me to locate it in the shield datasheet, however I have not been able to locate how to obtain that address

Any idea what this could be due to? I would really appreciate it if you could help me with this

[brando14]

hi, i try to introduce all of the address, but the code is not working, i am not sure that i should do, i am newbie in this area.

, 

&i2c1 {  
    mysensor: mysensor@4a {
        compatible = "i2c-device";
        reg = <0x4a>;
        label = "MYSENSOR";
    };
};

I try to change the line mysensor@4a and the reg with the addresses in  hexadecimal but it doesn't work. 

but the menssage is the same, i can't write and read in the sensor. 

[Sigurd Hellesvik]

Hi,

You can try this unofficial Simple I2C scanner for nRF5340 to scan for addresses on the I2C bus.

Regards,
Sigurd Hellesvik

[brando14]

hi, i try to use the scanner but i have had, problems with compatibilty with my version of nrf sdk, so i couldn't to build the app.

[Sigurd Hellesvik]

Hi,

Yes, the Scanner is written for pre-2.0.0 versions of the nRF connect SDK.

Either build it with a previous version, or update the sample to use Pin Control.

Regards,
Sigurd Hellesvik

[brando14]

ok, thanks for help, i will try