Introduction - If you have any usage issues, please Google them yourself
This STM32F746 code provides a description of how to use the different BSP drivers.
At the beginning of the main program the HAL_Init() function is called to reset
all the peripherals, initialize the Flash interface and the systick.
Then the SystemClock_Config() function is used to configure the system clock
(SYSCLK) to run at 200 MHz and provide 50 MHz at the output PLL divided by PLL_Q.
This frequency permit to reach 25 Mhz clock needed for SD operation and in line
with microSD specification.