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基于STM32控制直流电机加减速正反转设计

news 来源：原创 2025/6/23 20:36:54

基于STM32控制直流电机

（仿真＋程序＋设计报告）

功能介绍

具体功能：

1.L298N电机驱动；

2.按键可以控制正/反转，加/减速，停止；

3.LCD1602显示转速等级和正反转（正反转各有四个等级）；

添加图片注释，不超过 140 字（可选）

程序

#include "led.h"
#include "delay.h"
#include "sys.h"
#include "usart.h"
#include <stdio.h>
#include "timer.h"
#include "key.h"
#include "lcd.h"
unsigned char pwmRigh = 10; //pwm调整
unsigned char pwmLeft = 10;
unsigned char djs  = 200;char dis0[6] = "Dir:+";   //暂存
char dis1[6] = "Dir:-";   //暂存
char dis2[16] = "";   //暂?
char dis3[] = "RUN ";   //暂存?
char dis4[] = "STOP";   //暂存
unsigned  char rekey = 0; //按键防止抖动
unsigned char contNum = 0; //循环计数
int main(void)
{delay_init();            //延时函数初始化//    uart_init(9600);        //串口初始化为115200//  uart2_init(9600)    ;TIM3_Int_Init(10, 7199); //定时器LED_Init();             //初始化与LED连接的硬件接口KEY_Init();Lcd_GPIO_init();Lcd_Init();IN1 = 1;        //方向控制IN2 = 0;pwmRigh = 0;    //pwm调整,电机转速调整Lcd_Puts(0, 0, (unsigned char *)dis0);sprintf(dis2,"SPEED:%d",pwmRigh);Lcd_Puts(0, 1, (unsigned char *)dis2);Lcd_Puts(8, 0, (unsigned char *)dis3);while(1){if((key1 == 0) || (key2 == 0) || (key3 == 0) || (key4 == 0) || (key5 == 0)) //检测到按键按下{
//            delay_ms(1);   //小抖动仿真不需要加if(rekey == 0){if(key1 == 0)  //检测是否按下{rekey = 1;IN1 = 1;        //方向控制IN2 = 0;                   Lcd_Puts(0, 0, (unsigned char *)dis0);Lcd_Puts(8, 0, (unsigned char *)dis3);}else if(key2 == 0) //设置值键{rekey = 1;IN1 = 0;        //方向控制IN2 = 1;Lcd_Puts(0, 0, (unsigned char *)dis1);Lcd_Puts(8, 0, (unsigned char *)dis3);}else if(key3 == 0) //设置值键{rekey = 1;if(pwmRigh < 8)pwmRigh = pwmRigh + 2; //pwm 调速sprintf(dis2,"SPEED:%d",pwmRigh/2);Lcd_Puts(0, 1, (unsigned char *)dis2);}else if(key4 == 0) //设置值键{rekey = 1;if(pwmRigh >= 2)pwmRigh = pwmRigh - 1; //pwm 调速sprintf(dis2,"SPEED:%d",pwmRigh/2);Lcd_Puts(0, 1, (unsigned char *)dis2);}else if(key5 == 0) //设置值键{rekey = 1;IN1 = 0;        //方向控制IN2 = 0;Lcd_Puts(8, 0, (unsigned char *)dis4);}}}else{rekey = 0;  //防止重复检测到按键}delay_ms(10);}
}void pwmCtrl(void)
{static unsigned char countRigh;countRigh++;if(countRigh < pwmRigh)  //占空比调节{ENA = 1;             //打开}else if(countRigh <= 20)    //关闭时间段{ENA = 0;            //关闭if(countRigh == 20)countRigh = 0;}
}#include "led.h"
#include "delay.h"
#include "sys.h"
#include "usart.h"
#include <stdio.h>
#include "timer.h"
#include "key.h"
#include "lcd.h"
unsigned char pwmRigh = 10; //pwm调整
unsigned char pwmLeft = 10;
unsigned char djs  = 200;char dis0[6] = "Dir:+";   //暂存
char dis1[6] = "Dir:-";   //暂存
char dis2[16] = "";   //暂?
char dis3[] = "RUN ";   //暂存?
char dis4[] = "STOP";   //暂存
unsigned  char rekey = 0; //按键防止抖动
unsigned char contNum = 0; //循环计数
int main(void)
{delay_init();            //延时函数初始化//    uart_init(9600);        //串口初始化为115200//  uart2_init(9600)    ;TIM3_Int_Init(10, 7199); //定时器LED_Init();             //初始化与LED连接的硬件接口KEY_Init();Lcd_GPIO_init();Lcd_Init();IN1 = 1;        //方向控制IN2 = 0;pwmRigh = 0;    //pwm调整,电机转速调整Lcd_Puts(0, 0, (unsigned char *)dis0);sprintf(dis2,"SPEED:%d",pwmRigh);Lcd_Puts(0, 1, (unsigned char *)dis2);Lcd_Puts(8, 0, (unsigned char *)dis3);while(1){if((key1 == 0) || (key2 == 0) || (key3 == 0) || (key4 == 0) || (key5 == 0)) //检测到按键按下{
//            delay_ms(1);   //小抖动仿真不需要加if(rekey == 0){if(key1 == 0)  //检测是否按下{rekey = 1;IN1 = 1;        //方向控制IN2 = 0;                   Lcd_Puts(0, 0, (unsigned char *)dis0);Lcd_Puts(8, 0, (unsigned char *)dis3);}else if(key2 == 0) //设置值键{rekey = 1;IN1 = 0;        //方向控制IN2 = 1;Lcd_Puts(0, 0, (unsigned char *)dis1);Lcd_Puts(8, 0, (unsigned char *)dis3);}else if(key3 == 0) //设置值键{rekey = 1;if(pwmRigh < 8)pwmRigh = pwmRigh + 2; //pwm 调速sprintf(dis2,"SPEED:%d",pwmRigh/2);Lcd_Puts(0, 1, (unsigned char *)dis2);}else if(key4 == 0) //设置值键{rekey = 1;if(pwmRigh >= 2)pwmRigh = pwmRigh - 1; //pwm 调速sprintf(dis2,"SPEED:%d",pwmRigh/2);Lcd_Puts(0, 1, (unsigned char *)dis2);}else if(key5 == 0) //设置值键{rekey = 1;IN1 = 0;        //方向控制IN2 = 0;Lcd_Puts(8, 0, (unsigned char *)dis4);}}}else{rekey = 0;  //防止重复检测到按键}delay_ms(10);}
}
******//完整资料
*****//***微信公众号：木子单片机****/			void pwmCtrl(void)
{static unsigned char countRigh;countRigh++;if(countRigh < pwmRigh)  //占空比调节{ENA = 1;             //打开}else if(countRigh <= 20)    //关闭时间段{ENA = 0;            //关闭if(countRigh == 20)countRigh = 0;}
}