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#include <reg51.h>
#define unit unsigned int
#define uchar unsigned char
sbit p10=P1^0;//P1^0輸出100HZ波形
sbit p11=P1^1;//P1^1輸出50HZ波形
sbit p12=P1^2;//P1^2輸出25HZ波形
sbit p13=P1^3;//P1^3輸出20HZ波形
sbit p14=P1^4;//P1^4輸出10HZ波形
sbit p15=P1^5;//P1^5輸出5HZ波形
sbit p16=P1^6;//P1^6輸出2HZ波形
sbit p17=P1^7;//P1^7輸出1HZ波形
uchar count0;//計數
uchar count1;
uchar count2;
uchar count3;
uchar count4;
uchar count5;
uchar count6;
uchar count7;
void main()
{
count0=1;
count1=2;
count2=4;
count3=5;
count4=10;
count5=20;
count6=50;
count7=100;
TMOD=0X01;//定時器0 方式1
TH0=(65536-5000)/256;//5000個機器周期 5ms
TL0=(65536-5000)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
if(count0==0){count0=1;p10=!p10;}
if(count1==0){count1=2;p11=!p11;}
if(count2==0){count2=4;p12=!p12;}
if(count3==0){count3=5;p13=!p13;}
if(count4==0){count4=10;p14=!p14;}
if(count5==0){count5=20;p15=!p15;}
if(count6==0){count6=50;p16=!p16;}
if(count7==0){count7=100;p17=!p17;}
}
}
void counter()interrupt 1
{
TH0=(65536-4994)/256;
TL0=(65536-4994)%256;
count0--;
count1--;
count2--;
count3--;
count4--;
count5--;
count6--;
count7--;
}
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