BeagleBone Black Hardware
This guide was taken from the 2018/19 Repository. It may not be up-to-date or relevant anymore.
MPU9250:
To use SPI to communicate with the MPU9250 we need to connect the BeagleBone as Master and the MPU9250 as Slave. Using the Diagram below as a reference we can wire them as follows:
| BeagleBone (P9 side) | MPU9250 | Purpose |
|---|---|---|
| Pin 17 (SPI0_CS0) / Or any GPIO pin | NCS | Chip select (Select slave for read or write) |
| Pin 18 (SPI0_D1) | SDA | Write data to MPU |
| Pin 21 (SPI0_D0) | ADO | Read data from MPU |
| Pin 22 (SPI0_SCLK) | SCL | Clock |
| Pin 03 or Pin 04 (+3.3V) | VCC | Voltage Source |
| Pin 01 or Pin 02 (DGND) | GND | Ground |
Once wired correctly SPI should work as intended and the BeagleBone should be able to read and write from/to the MPU9250.
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