SMI230 Failed to read and write the configuration file

[maiwl]

In the first figure, I write the configuration data to register 0x5E normally and SPI writes the waveform correctly  

After the write is done, the data in the 0X5E configuration file is read, and the MISO of the SPI interface remains low 

(All other registers read and write normally)

Could you please help to analyze what problems there may be?

[BSTRobin]

Hello maiwl,

Clock phase and clock polarity should be "00" or "11". You could set clkPhase to LPSPI_CLOCK_PHASE_1ND_EDGE, clkPolarity to LPSPI_SCK_ACTIVE_LOW. Or set clkPhase to LPSPI_CLOCK_PHASE_2ND_EDGE, clkPolarity to LPSPI_SCK_ACTIVE_HIGH.

And try it again.

[maiwl]

My SPI configuration is correct, because the chip ID and other registers can read and write normally

[BSTRobin]

Hello maiwl,

If you read sensor data from BMI088, example code didn't access 0x5E register.
https://github.com/BoschSensortec/BMI08x-Sensor-API/tree/master/examples/read_sensor_data

Could we know what is your application with BMI088? And what is the purpose you access 0x5E register?

[maiwl]

Since the data collection rate is 1000HZ, data synchronization is required

[BSTRobin]

Hello maiwl,

With github code, I tested read_synchronized_data_mcu example code on STM32 with BMI08X_ACCEL_DATA_SYNC_MODE_1000HZ.

Loading config normally, see the waveform.

Attachment included example code and full waveform, you could refer it.