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#include <reg52.h>
#include <stdio.h>
#define uint unsigned int
#define uchar unsigned char
sbit _4IN = P1^0;
sbit led1 = P1^7;
uchar a,js,pwmt,flag;
int bd;
void Init()
{
TMOD = 0x21;
SCON = 0x50;
TH0 = (65536-10)/256;
TL0 = (65536-10)%256;
TH1 = 0xfd;
TH0 = 0xfd;
EA = 1;
ES = 1;
ET0 = 1;
TR0 = 1;
TR1 = 1;
}
void Timer0() interrupt 1
{
TH0 = (65536-10)/256;
TL0 = (65536-10)%256;
js ++;
if(js == 100)
js = 0;
}
void Ser() interrupt 4
{
RI = 0;
a = SBUF;
}
void kg()
{
int i;
for(i=0;i<9999;i++)
{
if(a=="k")
{
flag = 1;
led1 = 0;
}
if(i == 9999)
i = 0;
}
}
void bdz()
{
if((a=="j")&&(flag == 1))
{
bd += 10;
if(bd>100)
bd = 100;
}
if((a=="d")&&(flag == 1))
{
bd += 10;
if(bd<0)
bd = 0;
}
}
void pwm()
{
while(pwmt<bd)
_4IN = 1;
_4IN = 0;
}
void main()
{
// _4IN = 0;
Init();
while(1)
{
kg();
bdz();
pwm();
if(a=="g")
{
_4IN = 0;
led1 = 1;
}
}
}
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![KLF$4YEDE]$Q1X~HTFM~O2O.png](static/image/common/none.gif "KLF$4YEDE]$Q1X~HTFM~O2O.png")
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