Hi jack1,
Based on BHI360 sensor API v1.6.0, I uploaded BHI360 example code on STM32 for your reference. And also uploaded SPI waveform during read BHI360 chip ID for your reference.
To see all detailed SPI waveform, you can install Saleae logic(https://www.saleae.com/downloads) and open "BHI360 without BMM350_SPI waveform.logicdata".
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