STM32-Player-Doc/STM32H743VI 开发版/STM32H750驱动例程(HAL库)/例12 内存保护（MPU）/HARDWARE/KEY/key.c

#include "key.h"
#include "delay.h"
//////////////////////////////////////////////////////////////////////////////////	 

//KEY<45><59><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>	   


//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com								  
//////////////////////////////////////////////////////////////////////////////////


/************************************************************************************/

//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>


//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com	


/************************************************************************************/

void KEY_Init(void)
{
    GPIO_InitTypeDef GPIO_Initure;

	  
    __HAL_RCC_GPIOC_CLK_ENABLE();           //<2F><><EFBFBD><EFBFBD>GPIOCʱ<43><CAB1>
    __HAL_RCC_GPIOE_CLK_ENABLE();           //<2F><><EFBFBD><EFBFBD>GPIOEʱ<45><CAB1>

    
	  GPIO_Initure.Pin=GPIO_PIN_3;            //PE3  :<3A><>Ӧ K1
    GPIO_Initure.Mode=GPIO_MODE_INPUT;      //<2F><><EFBFBD><EFBFBD>
    GPIO_Initure.Pull=GPIO_PULLUP;          //<2F><><EFBFBD><EFBFBD>
    GPIO_Initure.Speed=GPIO_SPEED_FREQ_VERY_HIGH;     //<2F><><EFBFBD><EFBFBD>
    HAL_GPIO_Init(GPIOE,&GPIO_Initure);
	
		GPIO_Initure.Pin=GPIO_PIN_5;            //PC5  :<3A><>Ӧ K2
    GPIO_Initure.Mode=GPIO_MODE_INPUT;      //<2F><><EFBFBD><EFBFBD>
    GPIO_Initure.Pull=GPIO_PULLUP;          //<2F><><EFBFBD><EFBFBD>
    GPIO_Initure.Speed=GPIO_SPEED_FREQ_VERY_HIGH;     //<2F><><EFBFBD><EFBFBD>
    HAL_GPIO_Init(GPIOC,&GPIO_Initure);
		
    

}


/************************************************************************************/

//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>ذ<EFBFBD><D8B0><EFBFBD>ֵ
//mode:0,<2C><>֧<EFBFBD><D6A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>;1,֧<><D6A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
//0<><30>û<EFBFBD><C3BB><EFBFBD>κΰ<CEBA><CEB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//1<><31>WKUP<55><50><EFBFBD><EFBFBD> WK_UP
//ע<><D7A2><EFBFBD>˺<EFBFBD><CBBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD>ȼ<EFBFBD>,KEY1>KEY2


//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com	


/************************************************************************************/

u8 KEY_Scan(u8 mode)
{
    static u8 key_up=1;     //<2F><><EFBFBD><EFBFBD><EFBFBD>ɿ<EFBFBD><C9BF><EFBFBD>־
    if(mode==1)key_up=1;    //֧<><D6A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    if(key_up&&(KEY1==0||KEY2==0))
    {
        delay_ms(10);
        key_up=0;
        if(KEY1==0)  return KEY1_PRES;
        else if(KEY2==0)  return KEY2_PRES;
        
    }else if(KEY1==1&&KEY2==1)key_up=1;
    return 0;   //<2F>ް<EFBFBD><DEB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
}









//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com