IndoorEnvSystem/stm32/HARDWARE/KEY/key.c

#include "key.h"
#include "delay.h"
//////////////////////////////////////////////////////////////////////////////////	 
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>ѧϰʹ<EFBFBD>ã<EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD><EFBFBD>;
//ALIENTEK Mini STM32<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>		   
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD>@ALIENTEK
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳:www.openedv.com
//<EFBFBD>޸<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:2014/3/06
//<EFBFBD>汾<EFBFBD><EFBFBD>V1.0
//<EFBFBD><EFBFBD>Ȩ<EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؾ<EFBFBD><EFBFBD><EFBFBD>
//Copyright(C) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿƼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>޹<EFBFBD>˾ 2009-2019
//All rights reserved									   
//////////////////////////////////////////////////////////////////////////////////	 
 	    
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
//PA0.15<EFBFBD><EFBFBD>PC5 <EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void KEY_Init(void)
{
	
	GPIO_InitTypeDef GPIO_InitStructure;

 	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOC,ENABLE);//ʹ<EFBFBD><EFBFBD>PORTA,PORTCʱ<EFBFBD><EFBFBD>

	GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);//<EFBFBD>ر<EFBFBD>jtag<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>SWD<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>SWDģʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	
	GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_15;//PA15
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //<EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	GPIO_Init(GPIOA, &GPIO_InitStructure);//<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>GPIOA15
	
	GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_5;//PC5
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //<EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	GPIO_Init(GPIOC, &GPIO_InitStructure);//<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>GPIOC5
 
	GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_0;//PA0
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; //PA0<EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬Ĭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>	  
	GPIO_Init(GPIOA, &GPIO_InitStructure);//<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>GPIOA.0
	
} 
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<EFBFBD><EFBFBD><EFBFBD>ذ<EFBFBD><EFBFBD><EFBFBD>ֵ
//mode:0,<EFBFBD><EFBFBD>֧<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>;1,֧<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD>
//0<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>κΰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//KEY0_PRES<EFBFBD><EFBFBD>KEY0<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//KEY1_PRES<EFBFBD><EFBFBD>KEY1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//WKUP_PRES<EFBFBD><EFBFBD>WK_UP<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
//ע<EFBFBD><EFBFBD><EFBFBD>˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>,KEY0>KEY1>WK_UP!!
u8 KEY_Scan(u8 mode)
{	 
	static u8 key_up=1;//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɿ<EFBFBD><EFBFBD><EFBFBD>־
	if(mode)key_up=1;  //֧<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>		  
	if(key_up&&(KEY0==0||KEY1==0||WK_UP==1))
	{
		delay_ms(10);//ȥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
		key_up=0;
		if(KEY0==0)return KEY0_PRES;
		else if(KEY1==0)return KEY1_PRES;
		else if(WK_UP==1)return WKUP_PRES; 
	}else if(KEY0==1&&KEY1==1&&WK_UP==0)key_up=1; 	     
	return 0;// <EFBFBD>ް<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
}