RE: nrf5340dk SPI communication with BMI270 gyroscope

Albrecht Markus Schellenberger — Wed, 13 Apr 2022 06:23:39 GMT

Hello,

[quote user=""]For I2C you're supposed to use the 0x68 register but I couldn't find one for SPI in the datasheet so I just used the same(probably wrong)[/quote]

Yes, that is wrong. Since SPI is using the master-slave principle, you have to add the slave number counting from 0, instead of the physical I2C bus address.

Referring to the ADXL362 sample, and especially the containing .overlay file as a reference.

Please be aware that the nRF5340 application core has i2c1 enabled by default. Due to memory instantiation, you have to disable i2c1 if you would like to run spi1. You can check the status and its dependencies in ../<build_folder>/zephyr/zephyr.dts after performing a successful build.

Regards,

Markus