#include "stm32f746xx.h"
#include<stdint.h>

#include "uart.h"

#define GPIOBEN    (1U<<1)
#define PIN0       (1U<<0)

char Key;
int main(void)
{
	uart4_RXtx_init();
	RCC->AHB1ENR |= GPIOBEN;
	//	set the mode of the gpio pin for gpiob(pb0) and gpioc(pc13)
		GPIOB->MODER |=(1U<<0);
		GPIOB->MODER &=~(1U<<1);
	while(1)
	{

//		uart4_write(" Him");
//		GPIOB->ODR ^= PIN0;
	Key = uart2_read();
       if(Key == '1')
         {
        	 GPIOB->ODR |= PIN0;
         }
         else
         {
        	 GPIOB->ODR &=~ PIN0;
//        	 GPIOB->ODR |= PIN0;
         }
     }

}