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用HSI時鐘使步進電機轉(zhuǎn)動：
#include"stm32f10x_lib.h"
GPIO_InitTypeDef GPIO_InitStructure;
ErrorStatus HSIStartUpStatus;
void NVIC_Configuration(void);
void RCC_Configuration(void);
void TIM2_Configuration(void);
void GPIO_Configuration(void);
#define VECT_TAB_RAM
int main(void)
{
#ifdef DEBUG
debug();/*[初始化外圍設(shè)備指針]*/
#endif
RCC_Configuration(); //初始化時鐘與復(fù)位
NVIC_Configuration();//初始化中斷嵌套
TIM2_Configuration();//初始化定時器
GPIO_Configuration();
GPIO_WriteBit(GPIOD, GPIO_Pin_7, (BitAction)(0));
GPIO_WriteBit(GPIOD, GPIO_Pin_6, (BitAction)(0)); //DCY1 DCY2為00，即Normal %0 DECAY
GPIO_WriteBit(GPIOE, GPIO_Pin_7, (BitAction)(1));
GPIO_WriteBit(GPIOB, GPIO_Pin_1, (BitAction)(0)); //M1M2為10，即1-2-phase
GPIO_WriteBit(GPIOA, GPIO_Pin_4, (BitAction)(1)); //正向旋轉(zhuǎn)
GPIO_WriteBit(GPIOB, GPIO_Pin_0, (BitAction)(0));
GPIO_WriteBit(GPIOC, GPIO_Pin_5, (BitAction)(1)); //TQ1 TQ2為01，即Current Ratio為50%
GPIO_WriteBit(GPIOA, GPIO_Pin_7, (BitAction)(1)); //StepReset位
GPIO_WriteBit(GPIOC, GPIO_Pin_4, (BitAction)(1)); //StepEn 使能位
while(1)
{
}
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_7; //PA的3.4.7接CLK,CW/CCW,StepReset
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin= GPIO_Pin_5 | GPIO_Pin_6; //PA的6.7接Protect和Mo
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IPU;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_4 | GPIO_Pin_5; //PC的4.5接StepEn和TQ2
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOC,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_0 | GPIO_Pin_1; //PB的0.1接TQ1和M2
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOB,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_7; //PE7接M1
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOE,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6 | GPIO_Pin_7; //PD的67接DCY2和DCY1
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOD,&GPIO_InitStructure);
}
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
#ifdef VECT_TAB_RAM
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQChannel; //設(shè)置TIM2通道輸入中斷
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; /*配置優(yōu)先級組*/
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; /*允許TIM2全局中斷*/
NVIC_Init(&NVIC_InitStructure);
}
void TIM2_Configuration(void)
{
TIM_SetCounter( TIM2, 0x0000);
TIM_ClearFlag(TIM2, TIM_FLAG_Update); /*清除更新標志位*/
TIM_ClearITPendingBit(TIM2, TIM_FLAG_Update); //清除TIM2等待中斷更新中斷標志位
TIM_ARRPreloadConfig(TIM2, ENABLE); /*預(yù)裝載寄存器的內(nèi)容被立即傳送到影子寄存器 */
TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE); //使能TIM2的更新
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_TimeBaseStructure.TIM_Period = 120; //設(shè)定的最大計數(shù)值，計數(shù)值到則產(chǎn)生一次中斷
TIM_TimeBaseStructure.TIM_Prescaler = 30; //分頻
TIM_TimeBaseStructure.TIM_ClockDivision = 0; // 時鐘分割
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //計數(shù)方向向上計數(shù)
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
TIM_Cmd(TIM2, ENABLE); //TIM2 enable counter
}
void RCC_Configuration(void)
{
RCC_DeInit();
RCC_HSICmd(ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC
| RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE,ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); //在開啟時鐘里一定要打開TIM2的時鐘
}
void TIM2_IRQHandler(void)
{
if (TIM_GetITStatus(TIM2, TIM_IT_Update) == SET)
{
TIM_ClearFlag(TIM2, TIM_FLAG_Update);
GPIO_WriteBit(GPIOA,GPIO_Pin_3,(BitAction)(1-GPIO_ReadOutputDataBit(GPIOA,GPIO_Pin_3)));
}
}
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