1.串口通信时候发送“t”,电机停止,需要串口设置定时1ms连续发送才可以停止,不能单点击一下停止,而正转和反转单点都正常
2.加速和减速也需要设置定时1ms才可以实现。不知道为什么。代码如下
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
//------8拍-----
uchar code zz[]={0x01,0x03,0x02,0x06,0x04,0x0c,0x08,0x09}; //正转
uchar code fz[]={0x09,0x08,0x0c,0x04,0x06,0x02,0x03,0x01}; //反转
sbit K1=P2^0; //停止
sbit K2=P2^1; //正转
sbit K3=P2^2; //反转
sbit K4=P2^3; //加速
sbit K5=P2^5; //减速
uchar state=0; //状态变量
uint Time=60; //延时时间,用于调速
unsigned char receiveData='0';
void UsartConfiguration(); //初始化串口
void delay(uint ms) //延时,用于调速
{
uint t;
while(ms--)
for(t=0;t<120;t++);
}
void motor_zz() //正传函数
{
uint j;
for(j=0;j<8;j++)
{
if(P1==0xfb)
break;
P1=zz[j];
delay(Time);
}
}
void motor_fz() //反转函数
{
uint j;
for(j=0;j<8;j++)
{
if(P1==0xfb)
break;
P1=fz[j];
delay(Time);
}
}
void main()
{
UsartConfiguration();
while(1)
{
while(state==0) //状态0,停止
{
if((K2==0)||(receiveData=='z')) //按下K2或串口接收到'z',电机正转
{
state=1;
receiveData='0';
break;
}
if((K3==0)||(receiveData=='f')) //按下K3或串口接收到'f',电机反转
{
state=2;
receiveData='0';
break;
}
P0=0xfb;
P1=0x03;
}
while(state==1) //状态1,正转
{
if((K1==0)||(receiveData=='t')) //按下K1或串口接收到'f',电机反转
{
state=0;
receiveData='0';
break;
}
if((K2==0)||(receiveData=='z')) //按下K2或串口接收到'z',电机正转
{
state=1;
receiveData='0';
break;
}
if((K3==0)||(receiveData=='f')) //按下K3或串口接收到'f',电机反转
{
state=2;
receiveData='0';
break;
}
if((K4==0)||(receiveData=='+')) //按下K4或串口接收到'+',电机加速
{
Time=Time-5;
if(Time<20)
Time=20;
while(K4==0);
}
if((K5==0)||(receiveData=='-')) //按下K5或串口接收到'-',电机减速
{
Time=Time+5;
if(Time>100)
Time=100;
while(K5==0);
}
motor_zz(); //状态1,正转
}
while(state==2) //状态2,反转
{
if((K1==0)||(receiveData=='t')) //按下K1或串口接收到'f',电机反转
{
state=0;
receiveData='0';
break;
}
if((K2==0)||(receiveData=='z')) //按下K2或串口接收到'z',电机正转
{
state=1;
receiveData='0';
break;
}
if((K3==0)||(receiveData=='f')) //按下K3或串口接收到'f',电机反转
{
state=2;
receiveData='0';
break;
}
if((K4==0)||(receiveData=='+')) //按下K4或串口接收到'+',电机加速
{
Time=Time-5;
if(Time<20)
Time=20;
while(K4==0);
}
if((K5==0)||(receiveData=='-')) //按下K5或串口接收到'-',电机减速
{
Time=Time+5;
if(Time>100)
Time=100;
while(K5==0);
}
motor_fz(); //状态2,反转
}
}
}
/************************************************************************
* 函数名 :UsartConfiguration()
* 函数功能 :设置串口
* 输入 : 无
* 输出 : 无
*************************************************************************/
void UsartConfiguration()
{
SCON=0X50; //设置为工作方式1
//TMOD=0X20; //设置计数器工作方式2
TMOD=0X21; //设置计数器工作方式2 和定时器0
PCON=0X80; //波特率加倍
//TH1=0XF4; //计数器初始值设置,注意波特率是4800的
//TL1=0XF4;
TH1=0XFA; //计数器初始值设置,注意波特率是9600的
TL1=0XFA;
ES=1; //打开接收中断
EA=1; //打开总中断
TR1=1; //打开计数器
}
void Usart() interrupt 4
{
receiveData=SBUF;//出去接收到的数据
RI = 0;//清除接收中断标志位
}
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