BMI270 gyro

[joma]

In Bosch Sensortec | BMI270 Data sheet:

page 110 - Register (0x42) GYR_CONF  says that odr_6k4 is reserved.

page 2 says: Output data rates (ODR): 25 Hz ... 6.4 kHz (gyroscope) and 0.78 Hz ... 1.6 kHz (accelerometer)

How can I set odr_6k4 for gyro ?

If gyro ODR is 3k2 I'm getting about 60 interrupts per sec (with my watermark settings). If I chane ODR to 6k4 I'm getting about 24 interrupts per sec.

[FAE_CA1]

Hi,

Thanks for your inquiry.

If you set register 0x45 bit-3 gyr_fifo_filt_data to 0, then gyro unfiltered data will be filled in FIFO at 6.4KHz rate.

Thanks.

[kpoon12]

I set register 0x45 bit-3 gyr_fifo_filt_data to 0 but gyro data ready interrupt is still 200Hz and not 6.4KHz rate.

Do I need to set other register?

[Minhwan]

Hello kpoon12, 

Technically, you need to clear 4th bit in 0x45 register. 

But, this is not that all for your fifo setting. 

Therefore, I don't recommend to develop BMI270 w/o API. (If now, you are using our BMI270 API, that's great!) 

Please BMI270 API as below URL. 

https://github.com/BoschSensortec/BMI270-Sensor-API

And here is the my gyro fifo 6.4k ODR example code as attaced file. 

Thanks,