BMI270 SPI Init error

[JulianGra]

Hello,

I am trying to initalize the BMI270 with CY8C4024AXI with the SPI interface. I get the right Chip_ID and i can write the config file from the API but i always get the error code 0xF7 from the internal status register (0x21).  This is a compat_error but i did not find much information about this error.

I have also checket the first read and write before the config file and that are ok ( i compared it with a initialization sequence that i found in this forum).

I have attached my code.

Thanks

Julian

[BSTRobin]

Hi JulianGra,

For you code, you can read 0x21 register after sensor initialization.
In bmi270_init() function, it will call bmi2_soft_reset() to perform soft-reset to bring all register values to their default values.

[JulianGra]

Hi BSTRobin,

Sry i made a mistake.  I am getting 0x00 (not_init) back of the internal register after writing the config file.

[JulianGra]

Hello

I have tried to increase the time after writing the config file and i have tried to ask request the internal status again. But it did not helped. 
Did anyone has another solution or a example code for a cypress controller.

Thanks

Julian

[BSTRobin]

Hi JulianGra,

See it from you previous code, you are using BMI270 base version software. I uploaded example code on STM32 for your reference.

BMI270 (base)

• Any motion, No motion, Significant motion detectors
• Wrist worn Step counter and Step detector (Pedometer)
• Activity change recognition
  • Still
  • Walking
  • Running
• Wrist gestures
  • Push arm down
  • Pivot up
  • Wrist shake jiggle
  • Flick in
  • Flick out
• Wrist wear wake up

 

BMI270 Context

• Step counter and Step detector (Pedometer)
• Activity change recognition
  • Still
  • Walking
  • Running

 

BMI270 Legacy

• Any motion, No motion, Significant motion detector
• Orientation detector (Advanced Potrait-Landscape)
• High-G, Low-G (Freefall) detector
• Flat detector
• Tap detection (Single, Double, Triple taps)
• Smartphone Step counter and Step detector (Pedometer)
• Activity change recognition
  • Still
  • Walking
  • Running

 

BMI270 Maximum FIFO

• Supports a 6kB FIFO