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#include "stm32f10x.h"
#include "user_Config.h"
#include "stm32_eval.h"
#include <stdio.h>
/********************************************************************
********************************************************************/
void start_run(void);
void stop_run(void);
uint8_t flag =0;
uint8_t stop_flag =0; //運(yùn)轉(zhuǎn)標(biāo)志
uint8_t auto_flag =0;
uint8_t auto_flag1 =0;
uint32_t count =0;
uint32_t round =0;
uint32_t speed_cal = 750;
延時(shí)函數(shù)
void Delay(vu32 nCount)
{
uint32_t a;
uint32_t b;
for(a=nCount;a>0;a--)
for(b=8000;b>0;b--);
}
配置時(shí)鐘函數(shù)
void RCC_Configuration(void)
{
/* TIM3 clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
/* GPIOA and GPIOB clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE);
}
pwm波產(chǎn)生管腳設(shè)置
void GPIO_pwm_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //復(fù)用推挽輸出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
正反轉(zhuǎn)及調(diào)速
void GPIO_key_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15 ;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
步進(jìn)電機(jī)驅(qū)動(dòng)器使能及方向控制
void GPIO_type_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 ;
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_0);
GPIO_SetBits(GPIOC,GPIO_Pin_1);
}
定時(shí)器設(shè)置
void pwm(void)
{
TIM_TimeBaseStructure.TIM_Period = speed_cal;
TIM_TimeBaseStructure.TIM_Prescaler = 3-1;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
TIM_ClearFlag(TIM3, TIM_FLAG_Update);
TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE);
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = speed_cal/2;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM3, &TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);
TIM_ARRPreloadConfig(TIM3, ENABLE);
//TIM_Cmd(TIM3, DISABLE);
}
中斷優(yōu)先級(jí)設(shè)置
void TIM3_NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
NVIC_Init(&NVIC_InitStructure);
}
中斷函數(shù)（統(tǒng)計(jì)脈沖個(gè)數(shù)）
void TIM3_IRQHandler(void)
{
if(TIM_GetITStatus(TIM3,TIM_IT_Update!=RESET))
{
TIM_ClearITPendingBit(TIM3,TIM_FLAG_Update);
count++;
if(count == 768750)
{
count = 0;
round++;
}
if(round == 5)
{
round = 0;
if(flag == 1)
{
if(auto_flag == 0)
{
auto_flag = 1;
stop_run();
Delay(2000);
GPIO_SetBits(GPIOC,GPIO_Pin_0);
start_run();
}
else
{
auto_flag = 0;
stop_run();
Delay(2000);
GPIO_ResetBits(GPIOC,GPIO_Pin_0);
start_run();
}
}
}
}
}
開(kāi)始發(fā)送pwm
void start_run(void)
{
TIM_Cmd(TIM3, ENABLE);
}
關(guān)閉發(fā)送pwm
void stop_run(void)
{
TIM_Cmd(TIM3, DISABLE);
}
正傳
void start_scan1(void)
{
if(stop_flag == 0)
{
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_12)==0)
{
Delay(200);
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_12)==0)
{
GPIO_ResetBits(GPIOC,GPIO_Pin_0);
start_run();
stop_flag = 1;
while(!GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_12));
}
}
}
}
反轉(zhuǎn)
void start_scan2(void)
{
if(stop_flag == 0)
{
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_13)==0)
{
Delay(200);
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_13)==0)
{
GPIO_SetBits(GPIOC,GPIO_Pin_0);
start_run();
stop_flag =1;
while(!GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_13));
}
}
}
}
停止
void stop_scan(void)
{
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_15)==0)
{
Delay(200);
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_15)==0)
{
stop_run();
GPIO_ResetBits(GPIOC,GPIO_Pin_0);
Delay(1500);
stop_flag = 0;
while(!GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_15));
}
}
}
調(diào)速
void change_speed(void)
{
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_14)==0)
{
Delay(200);
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_14)==0)
{
if(speed_cal == 750)
{
speed_cal = 375;
}
else
{
speed_cal = 750;
}
TIM3->ARR = speed_cal;
pwm();
//TIM_Cmd(TIM3, ENABLE);
while(!GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_14));
}
}
}
自動(dòng)旋轉(zhuǎn)
void auto_run(void)
{
if(stop_flag == 0)
{
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_11)==0)
{
Delay(200);
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_11)==0)
{
if(auto_flag1 == 0)
auto_flag1 =1;
}
}
}
}
/****************************************************************************************************************************************/
int main(void)
{
RCC_Configuration();
GPIO_pwm_Configuration();
GPIO_key_Configuration();
GPIO_type_Configuration();
TIM3_NVIC_Configuration();
pwm();
while (1)
{
auto_run();
if(auto_flag1 ==0)
{
start_scan1();
start_scan2();
stop_scan();
change_speed();
}
else
{
if(flag == 0)
{
flag = 1;
GPIO_ResetBits(GPIOC,GPIO_Pin_0);
start_run();
}
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_15)==0)
{
Delay(200);
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_15)==0)
{
stop_run();
GPIO_ResetBits(GPIOC,GPIO_Pin_0);
auto_flag1 =0;
while(!GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_15));
}
}
}
}
}
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