无码精品人妻一区二区三区98,人人澡人人人人夜夜爽

#include<reg51.h>
//**************端口定義*******************
sbit k1 = P1^0; //傳感器
sbit buzeer = P3^6; //聲光報(bào)警
//**************變量定義*******************
char temp1 = 0;
/*******************定時(shí)器T0初始化********************/
void T0_init()
{
TMOD = TMOD | 0x01; //設(shè)T0為方式1
TH0 = (65535-50000)/256; //計(jì)數(shù)50000個(gè)
TL0 = (65535-50000)%256;
EA = 1; //開啟總中斷
ET0 = 1; //允許T0中斷
//TR0 = 1; //啟動(dòng)
}
//**************主函數(shù)*********************
void main()
{
T0_init(); //定時(shí)器0初始化
P0 = 0xff; //關(guān)閉指示燈
while(1)
{
if(k1 == 0) //檢測(cè)單金屬
{
TR0 = 1;
}
else //沒有檢測(cè)單金屬
{
TR0 = 0;
P0 = 0xff; //關(guān)閉指示燈
buzeer = 1; //關(guān)閉蜂鳴器
}
}
}
/**************************定時(shí)器T0中斷服務(wù)函數(shù)************************************/
void T0_time() interrupt 1
{
TH0 = (65535-50000)/256; //計(jì)數(shù)50000個(gè)
TL0 = (65535-50000)%256;
temp1 += 1;
if(temp1 >= 20)
{
temp1 = 0;
buzeer = ~buzeer;
P0 = ~P0;
}
}

復(fù)制代碼