Does STM32H5 MCU series support MIPI I3C being Target with static address?

[BRIAN_LAI]

I have a EVB NUCLEO-H503RB and tried to implement I3C Target feature.

Before testing on I3C system, I would like to test some basic read write with legacy I2C Controller.

However, I just found that it seems to be not support with static address on I3C Target feature:

Is there any ways to initialization I3C target with a default address to communicate I2C controller?

Or is there any other MCU series could communicate I2C controller with I3C target features?

 

[Foued_KH]

Hello @BLAI.1​ ,

From RM "An I3C bus is a two-wire, serial single-ended, multidrop bus, intended to improve a legacy I2C bus."

If you want to communicate an I3C target on I3C bus you can assign an address using Dynamic addressing or define a default static address.

There is no way to communicate I2C controller with I3C target features, you can just work on I3C bus to improve the features of the I2C interface preserving some backward compatibility.

For more details, I recommend you check the Application Note : Introduction to I3C for STM32H5 series MCU - Application note

Foued

[BRIAN_LAI]

Thanks for the reply.

There will be no static address when I configure as I3C target on STM32H5 series.

Do we have any other series MCU could initialization with static address as I3C target?

[Foued_KH]

When you configure STM32H5 mcu as I3C target you should assign a dynamic address (when using a sensor as an I3C target you can work with its own address)

But I recommend you try the dynamic addressing and choose your own address for the I3C target and manage your bus .

Foued