led.c

STM32+ov7670

#include <stm32f10x_lib.h>	   
#include "led.h"
//Mini STM32开发板
//LED驱动代码			 


// V1.0
//初始化PA8和PD2为输出口.并使能这两个口的时钟		    
	 
//LED IO初始化
void LED_Init(void)
{
	RCC->APB2ENR|=1<<2;    //使能PORTA时钟	   	 
//	RCC->APB2ENR|=1<<5;    //使能PORTD时钟	
	   	 
//	GPIOA->CRH&=0XFFFFFFF0; 
	GPIOA->CRL&=0xffffff00;
	GPIOA->CRL|=0x00000033;//PA0,1 推挽输出   	 
    GPIOA->ODR|=1<<0;      //PA0 输出高
	GPIOA->ODR|=1<<1;		//PA1 输出高
											  
//	GPIOD->CRL&=0XFFFFF0FF;
//	GPIOD->CRL|=0X00000300;//PD.2推挽输出
//	GPIOD->ODR|=1<<2;      //PD.2输出高 
}


void LED_Flash(void)
{
	if(LED0 ==0)
	{
		LED0 = 1;
		LED1 = 0;

	}
	else
	{
		LED0 = 0;
		LED1 = 1;
	}
	
}