Unable to communicate with ICM-42688 P via SPI using STM32L412RB

[Dev_k]

I have a custom setup which contains a microcontroller STM32L412RB and a ICM-42688 P.I tried to communicate with the ICM-42688 P via SPI (4-wire, tried both 1MHz and 100kHz) using the command 0x75 to READ the WHO_AM_I register (thanks for implementing that!). Yet, I get back a 0x0 and not a 0x47. I then observed the signals in oscilloscope, transmission is happening properly but I'm not receiving any data from the IMU sensor.

I also need to get the data from Accelerometer and Gyroscope registers.

 

Can anyone help me through this..?

[Federica Bossi]

Hi @Dev_k ,

Welcome to ST Community!

 ICM-42688 P is not an ST product, so I can't give you support.

However, I recommend you take a look at our LSM6DSV, 3-axis digital accelerometer and a 3-axis digital gyroscope (as you are looking for), that offers the best performances.

For our products, we provide drivers to be included in your project, and also some applicative examples. 

If this helps you, please mark my answer as "Best Answer" by clicking on the "Accept as Solution" button, this can be helpful for Community users to find this solution faster.

[Dev_k]

I received the LSM6DSV and integrated your drivers with my project, I am trying to read the device ID using lsm6dsv_device_id_get() this function but I'm unable to get the proper device ID. This communication I'm doing using SPI. And also I have referred to the examples provided in the above solution, still I'm unable to resolve this issue.