ICM 90248: how to send IRQ to the I2C master?

Sensors IMU & Motion
1

ICM 90248: how to send IRQ to the I2C master?

I have a SparkFun 9DoF IMU Breakout - ICM-20948: SparkFun 9DoF IMU Breakout - ICM-20948 (Qwiic) - SEN-15335 - SparkFun Electronics

I use IC2. The I2C master is a RPi. The IMU is connected to the RPi with a qwiic cable. Is there a way to configure the IMU to send IRQ to the RPi on a given GPIO pin for instance (not clear to me how from the doc): can somebody shed some light on how to do this (even describing the big picture without all details)?

Is there an alternative way to retrieve data from the IMU on the RPi using FIFO (not clear to me how) or other ways?

Ideally, I’d like to read data from the IMU as soon as data on IMU are ready

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Connect the ICM-20948 INT1 pin to the GPIO pin. See the device data sheet for the many ways to configure the interrupts, which includes a “raw data ready” interrupt.

Capture

3

Thanks! I’ll try that.