由 STM32单片机+数码管显示模块+键盘模块+L298N电机驱动模块+直流电机
1、采用STM32F103单片机为主控制器
2、四个按键,分别为启动/暂停、方向切换、加速、减速功能
3、数码管显示PWM占空比和电机转动方向(0正转,1反转)
注意:proteus8.11版本才能打开
24、基于STM32单片机的直流电机PWM调速(数码管显示)


#include "delay.h"#include "timer.h"
#include "key.h"
#include "SEG.h"
#include "stdio.h"
#include "stdlib.h"
#include int main(void)
{ unsigned char LV = 0; //PWM 百分比unsigned char buf[18];unsigned char Dir = 0; //0正转unsigned char key_value = 0; //按键返回值NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置中断优先级分组为组2:2位抢占优先级,2位响应优先级Seg_Init();KEY_Init(); //IO初始化PWM_Init();IN1 = 0;IN2 = 1;LV = 0;PWM_Set(LV);delay_ms(10);Smg_Get('+',000);while(1){ key_value = KEY_Scan(0); //按键单击switch(key_value){case 1: //开启if(LV==0){LV = 10;PWM_Set(LV);if(Dir==1)Smg_Get('-',LV);else if(Dir==0)Smg_Get('+',LV);}else{LV = 0;PWM_Set(LV);if(Dir==1)Smg_Get('-',LV);else if(Dir==0)Smg_Get('+',LV);}break;case 2: //方向if(Dir==0){Dir = 1;IN1 = 1;IN2 = 0;sprintf((char *)buf,"DIR: - "); Smg_Get('-',LV);}else{Dir = 0;IN1 = 0;IN2 = 1;sprintf((char *)buf,"DIR: + ");Smg_Get('+',LV);}break;case 3: //加速if(LV<100)LV = LV + 10;PWM_Set(LV);Smg_Get(5,LV);break;case 4: //减速if(LV>10)LV = LV-10;PWM_Set(LV);Smg_Get(5,LV);break;} }
}//定时器2中断服务程序
void TIM2_IRQHandler(void) //TIM2中断
{if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) //检查TIM4更新中断发生与否{TIM_ClearITPendingBit(TIM2, TIM_IT_Update ); //清除TIMx更新中断标志 Smg_display(); //数码管显示函数}
}
1、Proteus仿真软件
文件内容:Proteus7.8安装包、Proteus8.6安装包、Proteus.8.10安装包、Proteus Professional 8.11 SP0安装包
链接:https://pan.baidu.com/s/11LNUZ9BJXWvXf1C4dPc3_w
提取码:2756
3、KEIL5 MDK软件(STM32开发软件)
链接:https://pan.baidu.com/s/1t3eY-3yRdTa7jZMlijq_jg
提取码:ab58
https://pan.baidu.com/s/1owdfUhq7f7ZnNX8im_5BrA?pwd=l0np
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