STM32单片机驱动步进电机—简单篇
STM32单片机驱动步进电机—简单篇
STM32单片机驱动步进电机（一）
驱动电机运动
软件：Keil5
设备：步进电机（17HS4401）、驱动器、单片机（STM32F103）
接线方式：
- 电机与驱动器：黑A+，绿A-，红B+，蓝B-
- 驱动器与单片机：MF-PC8，DR-PC9，PU-PB5，COM-3.3V
main.c：(注解部分为此次用不上的程序)
#include "led.h"
#include "delay.h"
#include "key.h"
#include "sys.h"
#include "usart.h"
#include "timer.h"
#include "foot_definition.h"int main(void)
{TIM3_PWM_Init(99,99);PC89_Init();//uart1_init(115200);//PA9 PA10 //uart2_init(115200);//PA2 PA3//uart3_init(115200);//PB10 PB11delay_init();//KEY_Init(); LED_Init();NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);while (1){ GPIO_SetBits(GPIOC,GPIO_Pin_9); GPIO_SetBits(GPIOC,GPIO_Pin_8);TIM_Cmd(TIM3, ENABLE); LED1=!LED1;}
}
time.c:
#include "timer.h"
#include "led.h"
#include "usart.h"void TIM3_PWM_Init(u16 arr,u16 psc)
{ GPIO_InitTypeDef GPIO_InitStructure;TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;TIM_OCInitTypeDef TIM_OCInitStructure;RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE); GPIO_PinRemapConfig(GPIO_PartialRemap_TIM3, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOB, &GPIO_InitStructure);TIM_TimeBaseStructure.TIM_Period = arr; TIM_TimeBaseStructure.TIM_Prescaler =psc; TIM_TimeBaseStructure.TIM_ClockDivision = 0; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; TIM_OCInitStructure.TIM_Pulse=arr; TIM_OC2Init(TIM3, &TIM_OCInitStructure); TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Enable); TIM_Cmd(TIM3, DISABLE);
}
time.h:
#ifndef __TIMER_H
#define __TIMER_H
#include "sys.h"void TIM3_PWM_Init(u16 arr,u16 psc);
foot_definition.c:(名字随意取得，用以存放调用串口的程序)
#include "foot_definition.h"
#include "stm32f10x_it.h"
#include "delay.h"void PC89_Init(void) //
{GPIO_InitTypeDef GPIO_InitStructure;RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8|GPIO_Pin_9; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOC, &GPIO_InitStructure);GPIO_ResetBits(GPIOC,GPIO_Pin_8); //MFGPIO_ResetBits(GPIOC,GPIO_Pin_9); //DIR
}
foot_definition.h:
#ifndef _FOOT_DEFINITION_H
#define _FOOT_DEFINITION_Hvoid PC89_Init(void);
可以通过修改 TIM3_PWM_Init(99,99) 括号中的两个参数来改变PWM脉冲发送的频率，以达到控制电机转速的目的。