#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar count=0,PWM_1;
//uchar flag;
sbit led=P1^0;
sbit k1 = P2^0;
void init();
void display();
void delay(uchar x);
void main()
{
init();
while(1)
{
display();
}
}
void init()
{
TMOD=0X01;
TH0=(65536-120)/256;
TL0=(65536-120)%256;
EA=1;
ET0=1;
TR0=1;
}
void display()
{
for(PWM_1=0;PWM_1<250;PWM_1++)
{
while(!k1);
delay(500);
}
}
void delay(uchar x)
{
uchar i,j;
for(i=x;i>0;i--)
for(j=110;j>0;j--);
}
void timer()interrupt 1
{
TH0=(65536-12)/256;
TL0=(65536-12)%256;
count++;
if(count<=PWM_1)
led=0;
else led = 1;
count = count%235;
|
QQ好友和群
QQ空間
騰訊微博
騰訊朋友
收藏
淘帖
頂
踩
