- #include <REGX52.H>
- #define uint unsigned int;
- //#define forwordDir 0;
- //#define backDir 1;
- sbit Pulse=P1^0;
- sbit Dir=P1^1;
- sbit En=P1^2;
- uint clock,i,x;
- uint counter=0;
- //void forword(void)
- //{
- // TR0 = 1;
- // TH0 = (65536 -clock)/256;
- // TL0 = (65536 -clock)%256;
- // Dir = 0;
- // En = 0;
- //}
- void back(void)
- {
- TR0 = 1;
- TH0= (65536 - clock)/256;
- TL0 = (65536 - clock)%256;
- Dir = 1;
- En = 0;
- }
- void stop(void)
- {
- TR0 = 0;
- }
- void InitBJDJ(void)
- {
- TMOD =0x01;
- EA =1;
- ET0=1;
- }
- void main(void)
- {
- clock =75;
- x=1600;
- InitBJDJ();
- while(1)
- {
- back();
-
- if(counter>=x)// 我想要的效果是:8细分,1600个脉冲走完一圈。 但是电机一直在转,不会停
- {
- En=1;
- }
- }
- void time0(void) interrupt 1
- {
- TH0= (65536-clock)/256;
- TL0 = (65536 -clock)%256;
- Pulse = ~Pulse;
- counter++;
- }
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- #include "AT89X51.h"
- int delay();
- void inti_lcd();
- void show_lcd(int);
- void cmd_wr();
- void ShowState();
- void clock(unsigned int Delay) ;
- void DoSpeed(); //计算速度
- //正转值
- #define RIGHT_RUN 1
- //反转值
- #define LEFT_RUN 0
- sbit RS=0xA0;
- sbit RW=0xA1;
- sbit E=0xA2;
- char SpeedChar[]="SPEED(n/min):";
- char StateChar[]="RUN STATE:";
- char STATE_CW[]="CW";
- char STATE_CCW[]="CCW";
- char SPEED[3]="050";
- unsigned int RunSpeed=50; //速度
- unsigned char RunState=RIGHT_RUN; //运行状态
- main()
- {
-
- /*定时器设置*/
- TMOD=0x66; //定时器0,1都为计数方式;方式2;
- EA=1; //开中断
-
- TH0=0xff; //定时器0初值FFH;
- TL0=0xff;
- ET0=1;
- TR0=1;
-
- TH1=0xff; //定时器1初值FFH;
- TL1=0xff;
- ET1=1;
- TR1=1;
-
- IT0=1; //脉冲方式
- EX0=1; //开外部中断0:加速
- IT1=1; //脉冲方式
- EX1=1; //开外部中断1:减速
-
- inti_lcd();
- DoSpeed();
- ShowState();
- while(1)
- {
- clock(RunSpeed);
- P0_1=P0_1^0x01;
- }
-
- }
- //定时器0中断程序:正转
- void t_0(void) interrupt 1
- {
- RunState=RIGHT_RUN;
- P0_0=1;
- P1=0x01;
- cmd_wr();
- ShowState();
- }
- //定时器1中断:反转
- void t_1(void) interrupt 3
- {
- RunState=LEFT_RUN;
- P0_0=0;
- P1=0x01;
- cmd_wr();
- ShowState();
-
- }
- //中断0:加速程序
- void SpeedUp() interrupt 0
- {
- if(RunSpeed>=12)
- RunSpeed=RunSpeed-2;
- DoSpeed();
- P1=0x01;
- cmd_wr();
- ShowState();
-
- }
- //中断1:减速程序
- void SpeedDowm() interrupt 2
- {
-
- if(RunSpeed<=100)
- RunSpeed=RunSpeed+2;
- DoSpeed();
- P1=0x01;
- cmd_wr();
- ShowState();
-
-
- }
- int delay() //判断LCD是否忙
- {
- int a;
- start:
-
- RS=0;
- RW=1;
- E=0;
- for(a=0;a<2;a++);
- E=1;
- P1=0xff;
- if(P1_7==0)
- return 0;
- else
- goto start;
- }
- void inti_lcd() //设置LCD方式
- {
- P1=0x38;
- cmd_wr();
- delay();
- P1=0x01; //清除
- cmd_wr();
- delay();
- P1=0x0f;
- cmd_wr();
- delay();
- P1=0x06;
- cmd_wr();
- delay();
- P1=0x0c;
- cmd_wr();
- delay();
- }
- void cmd_wr() //写控制字
- {
- RS=0;
- RW=0;
- E=0;
- E=1;
- }
- void show_lcd(int i) //LCD显示子程序
- {
- P1=i;
- RS=1;
- RW=0;
- E=0;
- E=1;
- }
- void ShowState() //显示状态与速度
- {
- int i=0;
- while(SpeedChar<i>!=' ')
- {
- delay();
- show_lcd(SpeedChar<i>);
- i++;
- }
-
- delay();
- P1=0x80 | 0x0d;
- cmd_wr();
- i=0;
- while(SPEED<i>!=' ')
- {
- delay();
- show_lcd(SPEED<i>);
- i++;
- }
- delay();
- P1=0xC0;
- cmd_wr();
- i=0;
- while(StateChar<i>!=' ')
- {
- delay();
- show_lcd(StateChar<i>);
- i++;
- }
- delay();
- P1=0xC0 | 0x0A;
- cmd_wr();
- i=0;
- if(RunState==RIGHT_RUN)
- while(STATE_CW<i>!=' ')
- {
- delay();
- show_lcd(STATE_CW<i>);
- i++;
- }
- else
- while(STATE_CCW<i>!=' ')
- {
- delay();
- show_lcd(STATE_CCW<i>);
- i++;
- }
- }
- void clock(unsigned int Delay) //1ms延时程序
- { unsigned int i;
- for(;Delay>0;Delay--)
- for(i=0;i<124;i++);
-
- }
- void DoSpeed()
- {
- SPEED[0]=(1000*6/RunSpeed/100)+48;
- SPEED[1]=1000*6/RunSpeed%100/10+48;
- SPEED[2]=1000*6/RunSpeed%10+48;
- }</i></i></i></i></i></i></i></i></i></i>
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