Are you using the I2C1 peripheral or I2C2?

[Ajay-Embed]

I have a BNO080 breakout board by SparkFun, I was curious to know which I2C peripheral is being used for communication from the Nucleo board..

[DaveOfThings]

The example app uses I2C1, with SDA on PB9, SCL on PB8 and interrupt connected to PA10. You can find all these details in the file i2c_hal.c.