BMI270 bring up issue

[AichiChen]

Hi,

I am working on BMI270 bring up with shuttle board and TI MCU via 4-wire SPI interface, cloned the codes from gitbub and now I can read chip ID (0x24) and loading firmware.

But I always got error after firmware loading and the functions are not actual working.

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

I read the "BMI2_INTERNAL_STATUS_ADDR" register got "0x00" value which mean not initialized...

I also did a testing, to write register BMI2_INT2_IO_CTRL_ADDR (This address is R/W) to see whether it change  as expected after I write it.

Sometimes, it will write into address, but also failure a lot.

Is there anyting wrong on SPI interface coding or any other possible root cause???

Thanks in advance.

[AichiChen]

Just fix it by finding  a proper delay time per spi speed and each time spi write .

[BSTRobin]

Good news, AichiChen.