C语言程序-直流电机调速9页

1、#include#define uchar unsigned char#define uint unsigned int/* 端口定义*/sbit in1=P10;sbit in2=P11;sbit jian=P20;sbit jia=P21;sbit dir=P22;sbit run=P23;sbit inter_0=P32;sbit inter_1=P33;#define LCD_data P0 /数据口sbit LCD_RS = P27; /寄存器选择输入sbit LCD_RW = P26; /液晶读/写控制sbit LCD_EN = P25; /液晶使能控制sbit LCD_PSB =

2、 P24; /串/并方式控制uchar t10,t1,ce,cj,s1=0,pl=10;uchar zi=电机转速:;uchar num3;uint nums=0,speed,k=1200;void delay_1ms(uchar x)uchar i,j;for(j=0;jx;j+)for(i=0;i110;i+);/*/* */*写指令数据到LCD */*RS=L，RW=L，E=高脉冲，D0-D7=指令码。 */* */*/void write_cmd(uchar cmd) LCD_RS = 0; LCD_RW = 0; LCD_EN = 0; P0 = cmd;delay_1ms(5);

3、LCD_EN = 1;delay_1ms(5); LCD_EN = 0;/*/* */*写显示数据到LCD */*RS=H，RW=L，E=高脉冲，D0-D7=数据。 */* */*/void write_dat(uchar dat) LCD_RS = 1; LCD_RW = 0; LCD_EN = 0; P0 = dat;delay_1ms(5); LCD_EN = 1;delay_1ms(5); LCD_EN = 0;/*/* */* 设定显示位置 */* */*/void lcd_pos(uchar X,uchar Y) uchar pos; if (X=0) X=0x80; else i

4、f (X=1) X=0x90; else if (X=2) X=0x88; else if (X=3) X=0x98; pos = X+Y ; write_cmd(pos); /显示地址/*/* */* LCD初始化设定 */* */*/void lcd_init() LCD_PSB = 1; /并口方式 write_cmd(0x30); /基本指令操作 delay_1ms(5); write_cmd(0x0C); /显示开，关光标 delay_1ms(5); write_cmd(0x01); /清除LCD的显示内容 delay_1ms(5);void main()TMOD=0x02;TH0=

5、0X6;TL0=0X6;EA=1;ET0=1;TR0=1;IT0=1;EX0=1;IT1=1;EX1=1;PX1=1;PT0=1;t10=1;t1=10;delay_1ms(10); /延时 lcd_init(); lcd_pos(0,2); write_dat(zi0);write_dat(zi1);write_dat(zi2);write_dat(zi3);write_dat(zi4);write_dat(zi5);write_dat(zi6);write_dat(zi7);write_dat(zi8);while(1);count0(void) interrupt 1pl-;if(pl=0) k-; if(k=0) k=1200; speed=nums/3; num0=speed%10+48; num1=speed/10%10+48; num2=speed/100+48; lcd_pos(1,3); write_dat(num2);write_dat(num1); write_dat(num0); nums=0; pl=10; s1+; if(run=1) if(dir=1) if(s1t10)&(s1=t1) in1=0;in2=0; else if(s1t10)&(s1=t1) s1=0;int_0(void) interrupt 0delay_1ms(15);