Custom CAN Bootloader For STM32 H725, G491, H563

[mccabehm]

I am implementing custom CAN bootloaders for H725, G491, and H563. I would like to use the same bootloader across all MCUs.

1. Are the flash interfaces across these MCUs close enough that a common bootloader is feasible? [I haven't compared the reference manuals yet]
2. If there are differences, does HAL hide them?

[TDK]

You'll have to compile them separately for each target but most of the code can be the same. HAL can't hide fundamental differences in the hardware, such as the minimum page to write.

You can likely use a minimum compatible interface.