Solved
Hi, does anyone know where I can find a table of alternate pin functions for an STM32H745? It seems to me that the manual lists the functions of each pin, but does not provide the value to set on GPIO_AFR for each function. Thanks
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The datasheet will have that information.
https://www.st.com/resource/en/datasheet/stm32h745zg.pdf
For example, here is port A:

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