l298n驱动电机c程序及接线图

ID:476498 · 发表于 2019-2-14 15:06

本帖最后由 a@a@a@ 于 2019-2-15 10:47 编辑

#include<reg51.h>

#define sen_port P1

sbit SEN1=P1^0;
sbit SEN2=P1^1;

sbit EN1=P2^2;
sbit IN1=P2^3;
sbit IN2=P2^4;

sbit EN2=P2^5;
sbit IN3=P2^6;
sbit IN4=P2^7;

void delay(int n)             //延时子程序
{
  unsigned char i,j,k;
  for(i=n;i>0;i--)
  for(j=100;j>0;j--)
  for(k=200;k>0;k--);
}

unsigned char sensor_inp()
{
      unsigned char sensor;
      sensor = sen_port;
      sensor &= 0x03;
      P0 = sensor;
      return sensor;
}

void forward()             //two motos are runing forward
{
      IN1=1;
      IN2=0;
      IN3=1;
      IN4=0;
      EN1=1;
      EN2=1;
}

void backward()             //two motos are runing backward
{
      IN1=0;
      IN2=1;
      IN3=0;
      IN4=1;
      EN1=1;
      EN2=1;
}
void turn_left()       //left moto is runing, but right moto is brake
{
      IN1=1;
      IN2=0;
      IN3=0;
      IN4=0;
      EN1=1;
      EN2=1;
}
void rotate_left()       //right moto is runing forward, and left moto is running backward
{
      IN1=1;
      IN2=0;
      IN3=0;
      IN4=1;
      EN1=1;
      EN2=1;
}
void turn_right()       //right moto is runing, but left moto is brake
{
      IN1=0;
      IN2=0;
      IN3=1;
      IN4=0;
      EN1=1;
      EN2=1;
}
void rotate_right()       //left moto is running forward, and right moto is running backward
{
      IN1=0;
      IN2=1;
      IN3=1;
      IN4=0;
      EN1=1;
      EN2=1;
}
void free()                      //two motos is free
{
      IN1=0;
      IN2=0;
      IN3=0;
      IN4=0;
      EN1=0;
      EN2=0;
}
void stop()                      //two motos stop
{
      IN1=1;
      IN2=1;
      IN3=1;
      IN4=1;
      EN1=1;
      EN2=1;
}
void main(void)
{
      delay(10);
      P0=0x55;
      while(1)
      {
//             P0=P1;
//       delay(100); forward();
//             delay(100); stop();
      delay(100); backward();
            delay(100); stop();
      delay(100); turn_left();
            delay(100); stop();
      delay(100); turn_right();
            delay(100); stop();
      delay(100); rotate_left();
            delay(100); stop();
      delay(100); rotate_right();
            delay(100); stop();
      delay(100); stop();
      delay(20);       forward();
      delay(20);       backward();
      delay(20);
/*
      */
      }
}
l298n一般有3种接线方法
方式1：双电源板载5v供电（两电源须共地）
方式2：双电源单片机5v供电（拔掉跳线帽）

方式3：单电源板载5v供电（插上跳线帽）