STM32 驱动

led 驱动

led头文件

#ifndef _LED_H
#define _LED_Hvoid LED_Init(void);
void LED_ON(void);
void LED_OFF(void);
void LED_Turn(void);#endif

led代码

#include "stm32f10x.h" void   LED_Init(void)
{//START CLOCKRCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;GPIO_InitStructure.GPIO_Pin=GPIO_Pin_1 ;GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;GPIO_Init(GPIOA,&GPIO_InitStructure);GPIO_SetBits(GPIOA,GPIO_Pin_1 );
}
void LED_ON(void){GPIO_ResetBits(GPIOA,GPIO_Pin_1);
}
void LED_OFF(void){GPIO_SetBits(GPIOA,GPIO_Pin_1);
}
void LED_Turn(void)
{if (GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_1)==0){GPIO_SetBits(GPIOA,GPIO_Pin_1);//关灯}else{GPIO_ResetBits(GPIOA,GPIO_Pin_1);//开灯}}

delay 延迟

delay头文件

#ifndef __DELAY_H
#define __DELAY_Hvoid Delay_us(uint32_t us);
void Delay_ms(uint32_t ms);
void Delay_s(uint32_t s);#endif

delay代码

#include "stm32f10x.h"/*** @brief  微秒级延时* @param  xus 延时时长，范围：0~233015* @retval 无*/
void Delay_us(uint32_t xus)
{SysTick->LOAD = 72 * xus;				//设置定时器重装值SysTick->VAL = 0x00;					//清空当前计数值SysTick->CTRL = 0x00000005;				//设置时钟源为HCLK，启动定时器while(!(SysTick->CTRL & 0x00010000));	//等待计数到0SysTick->CTRL = 0x00000004;				//关闭定时器
}/*** @brief  毫秒级延时* @param  xms 延时时长，范围：0~4294967295* @retval 无*/
void Delay_ms(uint32_t xms)
{while(xms--){Delay_us(1000);}
}/*** @brief  秒级延时* @param  xs 延时时长，范围：0~4294967295* @retval 无*/
void Delay_s(uint32_t xs)
{while(xs--){Delay_ms(1000);}
} 

光敏传感器

头文件

#ifndef _LightSensor_H
#define _LightSensor_Hvoid LightSensor_Init(void);
uint8_t LightSensor_Get(void);
#endif

c文件

#include "stm32f10x.h" void LightSensor_Init(void)
{//START CLOCKRCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IPU;GPIO_InitStructure.GPIO_Pin=GPIO_Pin_13 ;GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;GPIO_Init(GPIOB,&GPIO_InitStructure);
}uint8_t LightSensor_Get(void)
{return GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_13);
}

对射式红外传感器驱动

c文件

#include "stm32f10x.h"                  // Device headeruint16_t CountSensor_Count;void CountSensor_Init(void)
{//开启GPIOB时钟RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);// 开启AFIO时钟RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);//初始化GPIO_InitTypeDefGPIO_InitTypeDef GPIO_InitStructure;//高电平输入GPIO_InitStructure.GPIO_Mode=  GPIO_Mode_IPU;GPIO_InitStructure.GPIO_Pin=GPIO_Pin_14;GPIO_InitStructure.GPIO_Speed= GPIO_Speed_50MHz;GPIO_Init(GPIOB,&GPIO_InitStructure);//配置AFIOGPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource14);// EXTIEXTI_InitTypeDef EXTI_InitStruct;EXTI_InitStruct.EXTI_Line=EXTI_Line14 ;EXTI_InitStruct.EXTI_LineCmd=ENABLE;EXTI_InitStruct.EXTI_Mode=EXTI_Mode_Interrupt;EXTI_InitStruct.EXTI_Trigger=EXTI_Trigger_Rising;EXTI_Init(&EXTI_InitStruct);NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);NVIC_InitTypeDef NVIC_InitStruct;NVIC_InitStruct.NVIC_IRQChannel=EXTI15_10_IRQn;NVIC_InitStruct.NVIC_IRQChannelCmd=ENABLE;NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority=1;NVIC_InitStruct.NVIC_IRQChannelSubPriority=1;NVIC_Init(&NVIC_InitStruct);}void EXTI15_10_IRQHandler (void){if (EXTI_GetITStatus(EXTI_Line14)==SET){CountSensor_Count ++;EXTI_ClearITPendingBit(EXTI_Line14);}}uint16_t CountSensor_Get(void)
{return CountSensor_Count;
}// void EXTI15_10_IRQHandler(void)
// {
// 	if (EXTI_GetITStatus(EXTI_Line14) == SET)
// 	{
// 		/*如果出现数据乱跳的现象，可再次判断引脚电平，以避免抖动*/
// 		if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_14) == 0)
// 		{
// 			CountSensor_Count ++;
// 		}
// 		EXTI_ClearITPendingBit(EXTI_Line14);
// 	}
// }

.h文件

#ifndef __COUNT_SENSOR_H
#define __COUNT_SENSOR_Hvoid CountSensor_Init(void);
uint16_t CountSensor_Get(void);#endif```c
#ifndef __COUNT_SENSOR_H
#define __COUNT_SENSOR_Hvoid CountSensor_Init(void);
uint16_t CountSensor_Get(void);#endif

5-2 旋转编码器计次

#ifndef __ENCODER_H
#define __ENCODER_Hvoid Encoder_Init(void);
int16_t Encoder_Get(void);#endif

#include "stm32f10x.h"                  // Device headerint16_t Encoder_Count;void Encoder_Init(void)
{RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOB, &GPIO_InitStructure);GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource0);GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource1);EXTI_InitTypeDef EXTI_InitStructure;EXTI_InitStructure.EXTI_Line = EXTI_Line0 | EXTI_Line1;EXTI_InitStructure.EXTI_LineCmd = ENABLE;EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;EXTI_Init(&EXTI_InitStructure);NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);NVIC_InitTypeDef NVIC_InitStructure;NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_InitStructure);NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQn;NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;NVIC_Init(&NVIC_InitStructure);
}int16_t Encoder_Get(void)
{int16_t Temp;Temp = Encoder_Count;Encoder_Count = 0;return Temp;
}void EXTI0_IRQHandler(void)
{if (EXTI_GetITStatus(EXTI_Line0) == SET){/*如果出现数据乱跳的现象，可再次判断引脚电平，以避免抖动*/if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_0) == 0){if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_1) == 0){Encoder_Count++;}}EXTI_ClearITPendingBit(EXTI_Line0);}
}void EXTI1_IRQHandler(void)
{if (EXTI_GetITStatus(EXTI_Line1) == SET){/*如果出现数据乱跳的现象，可再次判断引脚电平，以避免抖动*/if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_1) == 0){if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_0) == 0){Encoder_Count --;}}EXTI_ClearITPendingBit(EXTI_Line1);}
}

TIM定时器驱动

#include "stm32f10x.h"                  // Device headervoid Timer_Init(void)
{RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);TIM_InternalClockConfig(TIM2);TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;TIM_TimeBaseInitStructure.TIM_Period=10000-1;TIM_TimeBaseInitStructure.TIM_Prescaler=7200-1;TIM_TimeBaseInitStructure.TIM_RepetitionCounter=0;TIM_TimeBaseInit(TIM2,&TIM_TimeBaseInitStructure);//使能中断TIM_ClearFlag(TIM2,TIM_FLAG_Update);TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);NVIC_InitTypeDef NVIC_InitStructure;NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_InitStructure);TIM_Cmd(TIM2, ENABLE);
}
// void TIM2_IRQHandler(void)
// {
// 	if (TIM_GetITStatus(TIM2, TIM_IT_Update) == SET)
// 	{
// 		num++;
// 		TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
// 	}
// }