This is the code:#include <stm32f4xx.h>void main(void){//Set up PA5(LED)RCC -> AHB1ENR |= 0x00000001; //enables clock for GPO PAGPIOA -> MODER |= 0x00000400; //PA Pin 5 as GPOGPIOA -> OTYPER |= 0x00000000; //PA Pin 5 as Push/PullGPIOA -> OSPEEDR |= 0...