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#include <reg52.h>
#define uchar unsigned char //無符號字符型宏定義變量范圍0~255
#define uint unsigned int //無符號整型宏定義變量范圍0~65535
unsigned char code zheng[4]={0x08,0x04,0x02,0x01};//正轉(zhuǎn)表格
unsigned char code fan[4] ={0x01,0x02,0x04,0x08};//反轉(zhuǎn)表格
uchar flag_start ; //啟動標(biāo)志位 1為起動步進電機否則關(guān)閉電機
uchar flag_z_f; //正反標(biāo)志位 0為順時鐘 1為逆時史上轉(zhuǎn)
uint flag_moshi;
sbit led1 = P2^0; //指示燈
sbit led2 = P2^1;
sbit led3 = P2^2;
sbit led4 = P2^3;
sbit hw1 = P2^4; //紅外感應(yīng)
sbit hw2 = P2^5; //紅外感應(yīng)
uint bjdj_value; //步進電機的量
uchar flag_sj,flag_zdg; //延時關(guān)門時間打開和關(guān)閉的變量
void Delay(unsigned int i)//延時
{
while(--i);
}
/***********************1ms延時函數(shù)*****************************/
void delay_1ms(uint q)
{
uint i,j;
for(i=0;i<q;i++)
for(j=0;j<120;j++);
}
uchar key_can;
/********************獨立按鍵程序*****************/
void key()
{
static uchar key_new;
if((P3 & 0xf0) != 0xf0) //按鍵按下
{
Delay(1000); //按鍵消抖動
if(((P3 & 0xf0) != 0xf0) && (key_new == 1))
{ //確認(rèn)是按鍵按下
key_new = 0;
switch(P3 & 0xf0)
{
case 0xe0: key_can = 1; break; //得到按鍵值
case 0xd0: key_can = 2; break; //得到按鍵值
case 0xb0: key_can = 3; break; //得到按鍵值
case 0x70: key_can = 4; break; //得到按鍵值
}
}
}
else //按鍵松開
key_new = 1;
}
void bujindj() //步進電機函數(shù)
{
static uchar i;
if(flag_z_f != 0)
{
if(flag_z_f == 1) //開
{
if(bjdj_value >= 512)
{
flag_z_f = 0;
flag_zdg = 1;
}else
bjdj_value ++;
}
if(flag_z_f == 2) //關(guān)
{
if(bjdj_value <= 1)
{
flag_z_f = 0;
bjdj_value = 1;
}else
{
bjdj_value --;
}
}
for(i=0;i<4;i++) //4相
{
if(flag_z_f == 1) //開
{
P1=zheng[i];// //
P0=fan[i];
}
else if(flag_z_f == 2)//關(guān)
{
P1=fan[i];// //
P0=zheng[i];
}
}
}
}
/******************主程序**********************/
void main()
{
static unsigned char value;
while(1)
{
key();
if(key_can < 10)
{
if(key_can == 1) //自動模式
{
flag_moshi = 0;
flag_z_f = 0;
led4 = 0; led3 = 1; //指示燈
}
if(key_can == 2) //手動模式
{
flag_moshi = 1;
flag_z_f = 0;
led4 = 1; led3 = 0; //指示燈
}
if(key_can == 3) //手動關(guān)
{
flag_z_f = 2;
led2 = 0; led1 = 1; //指示燈
}
if(key_can == 4) //手動開
{
flag_z_f = 1;
led2 = 1; led1 = 0; //指示燈
}
}
if(flag_moshi == 0) //自動模式
{
if((hw1 == 1) || (hw2 == 1))
{
flag_z_f = 1; //打開
led2 = 1; led1 = 0; //指示燈
flag_zdg = 0;
flag_sj = 0;
}
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