|
|
#include <reg51.h>
#include <stdio.h>
#define uchar unsigned char
uchar cycle=100;
uchar speed=50;
sbit IN1=P2^0;
sbit IN2=P2^1;
sbit ENA=P2^2;
void zz()
{
IN1=1;
IN2=0;
}
void fz()
{
IN1=0;
IN2=1;
}
void stop()
{
IN1=0;
IN2=0;
}
void to(void) interrupt 1 using 1
{
if(cycle>100)
cycle=0;
if(cycle>speed)
ENA=0;
else
ENA=1;
cycle++;
}
void speedup()
{
if(speed>99)
speed=100;
else
speed++;
}
void speeddown()
{
if(speed<1)
speed=0;
else
speed--;
}
void main(void)
{
EA=1;
EX0=1;
IT0=1;
TMOD=0x12;
TH0=0x06;
TL0=0x06;
TR0=1;
ET0=1;
PX0=1;
P1=0xff;
while(1)
{
}
}
void int0(void) interrupt 0 using 0
{
switch(P1)
{
case 0xfe:zz();break;
case 0xfd:fz();break;
case 0xfb:stop();break;
case 0xf7:speedup();break;
case 0xef:speeddown();break;
default:P1=0xff;break;
}
}
|
|
QQ好友和群
QQ空間
騰訊微博
騰訊朋友
收藏
淘帖
頂
踩
