/*******************************************************************************************************************
* 版权归huaer一切 **
* 功用：SH-20504操控56BYG250C的单片机程序 **
* 输出：PWM **
* 输入：无 **
* **
*电路链接： 共阳 (方向+/脱机+/PWM+衔接在一起与电源或者是操控I/O相连) **
* | | **
* 方向脉冲 P1.0—| |—-P1.3 key1
* PWM脉冲 P1.1—| |—-P1.4 key2
* 脱机脉冲 P1.2—| |—-P1.5 key3
* | |
* 创造时刻：2014.3.25
* 创造人： huaer 周-华
***************************************************************/
#include < reg51.h >
sbit C = P1^0; //方向脉冲
sbit D = P1^1; //pwm脉冲
sbit E = P1^2; //脱机脉冲
sbit key1 = P1^3; //方向开关
sbit key2 = P1^4; //加快开关
sbit key3 = P1^5; //减速开关
void delay(unsigned int d)
{
unsigned char i;
for ( ; d>0; d–)
for ( i=30; i>0; i–);
}
void main ( void )
{
unsigned char v1 = 1;//速度标志空占比调理
unsigned char z = 0;
while( 1 )
{
if ( key1 == 0 )
{
delay(100);
if(key1 == 0)
{
while( ~key1 );
z = 1; //回转（默许下正转）
}
}
else z = 0;
if( key2 == 0)
{
delay(100);
if(key2 == 0)
{
while( ~key2 );
++v1;
}
}
if( key3 == 0)
{
delay(100);
if(key3 == 0)
{
while( ~key3 );
–v1;
}
}
if( z == 1)
{
C = 0;
delay(1);
D = 0;
delay( v1 );
D = 1;
delay( v1 );
/*
D = 0;
delay( v1 );
E = 0;
delay( v2 );
E = 1;
*/
}
else {
D = 0;
delay( v1 );
D = 1;
delay( v1 );
/*
D = 0;
delay( v1 );
E = 0;
delay( v2 );
E = 1;
*/
}
}
}
