BMI270 configuration issue with SPI, STM32

[Mattieu]

I cannot initialize and upload the configuration into the BMI270 configuraiton file. My BMI270 is connected to SP1, and CS is at GPIOA4.

I tried to develop my own drivers but failed, and now using a code example from a bosch forum moderator, and still can't make it run, I ran out of ideas.

Logs:

Error [-9] : Configuraiton load error. It occurs when failure observed while loading the configuration into the sensor

I attached the project code.

[BSTRobin]

Hi Mattieu,

Could we know your hardware schematic?
Could you get BMI270 chid ID via SPI?

[Mattieu]

Hello,

The chip ID returned is not correct. It looks like the code writes the config before checking that CHIP_ID is accurate. 

rslt = bmi2_soft_reset(dev); // bmi2.c:line 1753 write the config before chip_id

Here are hardware specs.

Here are pinout layouts

[Mattieu]

There must be something wrong with the CHIP_ID read section, since I could get the correct chip_id using a custom code ?

Also maybe the SPI has a maximum burst length, sending the 8K config bytes at once ?