I can't get spi communication.

[baby_chicken]

Hello.

I tried to use an imu that was previously working using the spi2 port of the stm32f4 series with the spi4 port of the stm32h7 series, but I cannot communicate with it. (imu is using icm42688p.)
Is it possible that I have made a mistake in my settings or something?

 

↓Configuration in the stm32f4 series.

↓Configuration in the stm32h7 series.

 

Best regards.

[Pavel A.]

IMUs are complex devices, usually they have non-volatile configuration and so on. The problem can be on the IMU side.

[baby_chicken]

So you're saying that the settings are fine and I should try with a different imu?

[baby_chicken]

I would like to know if there is some code or other that would turn on spi programmatically.

[Pavel A.]

If you have not changed STM32 side program but the IMU acts up, it is logical to swap the IMU. If possible, take a new one with factory setup.

[baby_chicken]

I will replace it with a new IMU.

[baby_chicken]

Changing imu made no change.

[Pavel A.]

Well, then proceed as usual. Scope, logic analyzer ...