#include<reg52.h>
#define uchar unsigned char
#define unit unsigned int
#define shudu 30
#define dengji 1
sbit B1=P1^0;
sbit G1=P1^1;
sbit R1=P1^2;
uchar Rout,Gout,Bout;
void delay(unit z)
{
unit x,y;
for(x=0;x<5;x++)
for(y=0;y<z;y++);
}
void RGBpwm(uchar Rou,uchar Gou,uchar Bou)
{
if(Rou!=0)
{
R1=0;
delay(Rou);
R1=1;
}
if(Bou!=0)
{
B1=0;
delay(Bou);
B1=1;
}
if(Gou!=0)
{
G1=0;
delay(Gou);
G1=1;
}
}
void main()
{
TMOD=0x01;
EA=1;
ET0=1;
TR0=1;
R1=1;
G1=1;
B1=1;
TH0=(65536-256)/256;
TL0=(65536-256)%256;
while(1)
{
RGBpwm(Rout,Gout,Bout);
}
}
void zhong() interrupt 1
{
unit num;
unit ji;
TH0=(65536-256)/256;
TL0=(65536-256)%256;
num++;
if(num==shudu)
{
num=0;
ji++;
if((ji>0)&&(ji<100))
{
Rout=240;
Gout=0;
Bout=0;
}
if((ji>100)&&(ji<240))
{
Rout-=dengji;
Gout=0;
Bout=0;
}
if((ji>340)&&(ji<580))
{
Rout=0;
Gout+=dengji;
Bout=0;
}
if((ji>580)&&(ji<680))
{
Rout=0;
Gout=240;
Bout=0;
}
if((ji>680)&&(ji<920))
{
Rout=0;
Gout-=dengji;
Bout=0;
}
if((ji>920)&&(ji<1160))
{
Rout=0;
Gout=0;
Bout+=dengji;
}
if((ji>1160)&&(ji<1260))
{
Rout=0;
Gout=0;
Bout=240;
}
if((ji>1260)&&(ji<1500))
{
Rout=0;
Gout=0;
Bout-=dengji;
}
if(ji>1500)
ji=0;
}
} |
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