#include "stm32f4xx.h"#include<stdint.h>  void config_gpio(){RCC->AHB1ENR |= (1U<<0);//ENABLING THE PORT A  GPIOA->MODER |= (1U<<1);GPIOA->MODER &= ~(1U<<0);//SETTING PA0 AS ALTERNATE FUNCTION MODE  GPIOA->OTYPER &= ~(1U<<0);//SETTING OUTPUT TYPE AS ...