步進(jìn)電機(jī)控制及其LCD顯示

1、精選優(yōu)質(zhì)文檔-傾情為你奉上#include "AT89X51.h"int delay();void inti_lcd();void show_lcd(int);void cmd_wr();void ShowState();void clock(unsigned int Delay) ;void DoSpeed(); /計(jì)算速度/正轉(zhuǎn)值#define RIGHT_RUN 1/反轉(zhuǎn)值#define LEFT_RUN 0sbit RS=0xA0;sbit RW=0xA1;sbit E=0xA2;char SpeedChar="SPEED(n/min):"cha

2、r StateChar="RUN STATE:"char STATE_CW="CW"char STATE_CCW="CCW"char SPEED3="050"unsigned int RunSpeed=50;/速度unsigned char RunState=RIGHT_RUN; /運(yùn)行狀態(tài)main()/*定時(shí)器設(shè)置*/TMOD=0x66; /定時(shí)器0，1都為計(jì)數(shù)方式；方式2；EA=1;/開中斷TH0=0xff;/定時(shí)器0初值FFH；TL0=0xff;ET0=1;TR0=1;TH1=0xff;/定時(shí)器1初值FFH；

3、TL1=0xff;ET1=1;TR1=1; IT0=1;/脈沖方式EX0=1;/開外部中斷0:加速IT1=1;/脈沖方式EX1=1;/開外部中斷1:減速 inti_lcd(); DoSpeed(); ShowState(); while(1) clock(RunSpeed); P0_1=P0_10x01; /定時(shí)器0中斷程序:正轉(zhuǎn)void t_0(void) interrupt 1RunState=RIGHT_RUN; P0_0=1; P1=0x01; cmd_wr(); ShowState(); /定時(shí)器1中斷:反轉(zhuǎn)void t_1(void) interrupt 3RunState=LEF

4、T_RUN; P0_0=0; P1=0x01; cmd_wr(); ShowState(); /中斷0:加速程序void SpeedUp() interrupt 0 if(RunSpeed>=12) RunSpeed=RunSpeed-2; DoSpeed(); P1=0x01; cmd_wr(); ShowState(); /中斷1:減速程序void SpeedDowm() interrupt 2 if(RunSpeed<=100) RunSpeed=RunSpeed+2; DoSpeed(); P1=0x01; cmd_wr(); ShowState(); int delay(

5、) /判斷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() /設(shè)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() /寫控制字

6、 RS=0; RW=0; E=0; E=1;void show_lcd(int i) /LCD顯示子程序 P1=i; RS=1; RW=0; E=0; E=1;void ShowState() /顯示狀態(tài)與速度 int i=0; while(SpeedChari!='0') delay(); show_lcd(SpeedChari); i+; delay(); P1=0x80 | 0x0d; cmd_wr(); i=0; while(SPEEDi!='0') delay(); show_lcd(SPEEDi); i+; delay(); P1=0xC0; cmd

7、_wr(); i=0; while(StateChari!='0') delay(); show_lcd(StateChari); i+; delay(); P1=0xC0 | 0x0A; cmd_wr(); i=0; if(RunState=RIGHT_RUN) while(STATE_CWi!='0') delay(); show_lcd(STATE_CWi); i+; else while(STATE_CCWi!='0') delay(); show_lcd(STATE_CCWi); i+; void clock(unsigned int Delay) /1ms延時(shí)程序 unsigned int i; for(;Delay>0;Delay-) for(i=0;i<124;i+); void