BMI270 initialization issue with Arduino M0

[paraas]

Hello Minhwan,

Changed the read and write functions as you suggested. The code compiled just fine, but the init_status register returned 2.  Turns out I couldn't write 32 byte bursts, probably because the tx buffer is 32 and needs 2 stop bytes. Changing the write length to 16 fixed this, and now everything is working perfectly.

Thank you so much for your help! 🙂

Best regards.

[Eason]

Hallo, paraas

I also use this example program to debug BMI.But the value of "rslt" is not equal to the value of "BMI_OK" during debugging.This means the communication is not completed.

17:04:48.358 -> bmi270_init done
17:04:48.376 -> -2
17:04:48.376 -> 0
17:04:48.704 -> Accel x = 0	Accel y = 0	Accel z = 0	Gyro x = 0	Gyro y = 0	Gyro z = 0

 Which section of the program should be modified to get normal output? Thank you very much.

[Minhwan]

Hello Eason, 

-2 means communication error. So, you need to check software configuration and hardware setting. 

Thanks, 

[jimit007]

Hi,

Jimit here, I have bmi270 IMU, I am successfully loading my config file and then initializing the sensor in normal mode, as shown in the datasheet, I implement it in teensy 4.1 board, and I set ODR, BANDWIDTH, and filter pref with ACC_CONFIG resistor  filter_pref = 1, ODR = 100Hz, BANDWIDTH  = res_avg16 I get Acc config ERROR, and when I get ACC data on 2G I get range between on Z axis = 4175-4185, I don't know why this happens? can you help me, please? you can check my code, I will give you my code, I showed in the data sheet what reserved means.