Master the skill of porting between embedded platforms.
Best to start by understanding the board and hardware level differences of each platform. Review the schematics, look at the pin assignments.
As you port the specific peripherals of interest expect to adjust the pin level specifics to reflect those of the target board.
Make sure the clock sources are understood, and reflected in the defines, like HSE_VALUE, and within stm32f7xx_hal_conf.h for the project.
