Hi，I am working with  STM32H5RBT6U：How do I calculate the frequency of the I3C Controller? Is there documentation to cover the content?I tried using CubeMX to set the frequency, but strangely, all the frequencies work fine except 3~5MHz. The exceptio...

I am using the following slave device for I3C reading and writing. I can now read and write CMOS registers through private mode, but I cannot find any examples of entering and exiting HDR mode. Can you provide an example program for entering and exit...

I use spi1 as the slave to receive data, and if the speed of the spi master is set above 11M, the data received will be misaligned.I would like to know what is the maximum speed supported by the SPI peripheral on the stm32h503rbt6u chip in the slave ...