⑴ 51单片机开发板和绝对式编码器连接测量角度的程序
#include <reg52.h>
#include "inc/delay.h"
#include "inc/hc595.h"
#define uchar unsigned char
#define uint unsigned int
sbit PIN_ROTARY_A = P2^0; //引脚1接口
sbit PIN_ROTARY_B = P2^1; //引脚2接口
sbit PIN_ROTARY_C = P2^2; //按下的接口
sbit PIN_ROTARY_D = P2^3; //按下的接口
//uchar code table[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};
/* 存储待发送的数据 */
/* 1->8的段码表 */
code unsigned char ucDis_Segmentcode[16] = {0x3f,0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
/* 位码表 */
code unsigned char ucDis_Bitcode[8] = {0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF, 0xBF, 0x7F};
uchar dis_XS[8] = {0x3f,0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d};
uchar count = 0;
uchar flag;
uchar Last_BMB_status;
uchar Current_BMB_status;
void display()
{
uchar i;
dis_XS[0] = ucDis_Segmentcode[count/100]; //百位
dis_XS[1] = ucDis_Segmentcode[count%100/10]; //十位
dis_XS[2] = ucDis_Segmentcode[count%10]; //个位
if(i < 2)
{
i++;
}
else
{
i = 0;
}
// for (i = 0; i < 3; i++ )
{
Send_Data(dis_XS[i], ucDis_Bitcode[i]);
//PIN_ROTARY_D = 0;
// Delay1ms(1);
}
}
//************************************************
void main()
{
TMOD=0x01; //定时器0，工作方式1
TH0=0xD8;
TL0=0xF0; //给定时器装上初值，10ms中断一次
ET0=1; //打开定时器中断
EA =1; //打开总中断
TR0=1; //启动定时器0
while(1)
{
//display();
Last_BMB_status=PIN_ROTARY_B;
while(!PIN_ROTARY_A) //BMA为低电平时
{
Current_BMB_status = PIN_ROTARY_B;
flag = 1; //标志位置为1说明编码开关被旋转了
}
if(flag == 1)
{
flag = 0; //时刻要注意这一点！给标志位清零
if((Last_BMB_status == 0)&&(Current_BMB_status == 1)) //BMB上升沿表示正转
{
count++;
if(count == 255)
{
count = 0;
}
}
if((Last_BMB_status == 1)&&(Current_BMB_status == 0)) //BMB下降沿表示反转
{
count--;
if(count == 0)
{
count = 255;
}
}
}
}
}
//***********************************************
void timer0() interrupt 1//定时器0的中断服务程序
{
TH0=0xF8; // TH0=0xD8;
TL0=0xF0; //再次装入初值
display(); //每隔10ms显示一次
if(!PIN_ROTARY_C) //按下旋转编码开关则计数清零
{
count = 0;
}
PIN_ROTARY_D = !PIN_ROTARY_D;
}
⑵ 旋转编码器怎么连接51单片机
应该是STC89C52吧？？
能不能直接连接第一个要看你的旋转编码器的接口电平是否与单片机兼容，第二还要看编码器的分辨率和电动机的最高转速，如果分辨率×最高转速>程序运算周期，那就要加分频电路。