#include "stm32c031xx.h"

int main(void){
RCC->AHBENR |= (1<<0);
GPIOA->MODER |= (1<<10); // 10th Bit to Be 1
GPIOA->MODER &= ~(1<<11);// 10th Bit to Be 0
while(1){
GPIOA->ODR |= (1<<5);// PA5 - LED ON
for(int i=0;i<1000000; i++){}
GPIOA->ODR &= ~(1<<5);// PA5 - LED Off
for(int i=0;i<1000000; i++){}
} }