51单片机控制直流电机PWM调速C语言程序

.#include #define uchar unsigned char #define uint unsigned int sbit KEY1 = P34;sbit KEY2 = P35;sbit KEY3 = P36;sbit IN1 = P10;sbit IN2 = P11;sbit ENA = P12;sfr ldata=0x80;sbit dula=P26;sbit wela=P27;/sbit lcden=P34;/uchar timer,ms,t_set = 1;uchar T_N=100;uchar T_N1=100;uchar T_H_N=50;uchar T_H_N1=50;void msplay(uchar,uchar);uchar code x1=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x27,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;/uchar code x2=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xd8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e;uchar codex3=0xfe,0xfd,0xfb,0xf7,0xef,0xdf;/uchar codex4=0x01,0x02,0x04,0x08,0x10,0x20;void delay(uint z)/延时函数uint x;for(x=z;x0;x-);void Key_Scan()if(KEY1 = 0)delay(20);while(!KEY1);T_H_N+;if(T_H_N =99)T_H_N =99;if(KEY2 = 0)delay(20);while(!KEY2);T_H_N-;if(T_H_N = 1)T_H_N = 1;if(KEY3 = 0)delay(15);while(!KEY3);IN1=IN1;IN2=IN2;void Motor_Init()ENA = 0;IN1 = 1;IN2 = 0;void Timer0_Init()TMOD=0X12;TH0=(256-50);TL0=(256-50);/TH1=(65535-T_H)/256;/TL1=(65535-T_H)%256;EA=1;ET0=1;TR0=1;void main()uchar k3,k2,k1,k0;Timer0_Init();Motor_Init();while(1)k2=T_H_N/10;k3=T_H_N%10;k1=0;k0=0;msplay(k0,2);msplay(k1,3); msplay(k2,4);msplay(k3,5);Key_Scan();void timer0() interrupt 1TR0=0;/TH0=(65536-50)/256;/TL0=(65536-50)%256; T_H_N1-;if(0=T_H_N1)ENA=0;T_H_N1=1;T_N1-;if(T_N1=0)ENA=1;T_N1=100;T_H_N1=T_H_N;TR0=1;void msplay(uchar y1,uchar y2) ldata = x1y1;dula=1;dula=0; delay(1); ldata = x3y2;wela=1;wela=0; delay(1); lda