標(biāo)題:
單片機(jī)定時(shí)中斷實(shí)驗(yàn)
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作者:
liuda
時(shí)間:
2015-1-21 23:25
標(biāo)題:
單片機(jī)定時(shí)中斷實(shí)驗(yàn)
是用51hei單片機(jī)開發(fā)板 電路圖詳見:
http://www.torrancerestoration.com/f/51hei-5.pdf
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
//=============
uchar data cnt;
//===========
sbit LAMP =P1^0;
//=============
void init(void)
{
TMOD=0x01;
TH0=-(50000/256);
TL0=-(50000%256);
ET0=1;
TR0=1;
EA=1;
}
//=============
void delay(uint k)
{
uint data i,j;
for(i=0;i<k;i++){
for(j=0;j<121;j++)
{;}}
}
//================
void time0(void) interrupt 1
{
TH0=-(50000/256);
TL0=-(50000%256);
cnt++;
if(cnt<=4)LAMP=0;
else LAMP=1;
if(cnt>=20)cnt=0;
}
//================
void main(void)
{
init();
while(1)
{
delay(3000);
}
}
復(fù)制代碼
作者:
瀚海一滴
時(shí)間:
2015-5-23 22:55
特別好,終于找到單片機(jī)板子的電路圖了,謝謝你。!
歡迎光臨 (http://www.torrancerestoration.com/bbs/)
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