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STM32 驱动
led 驱动
led头文件
#ifndef _LED_H #define _LED_H void LED_Init(void); void LED_ON(void); void LED_OFF(void); void LED_Turn(void); #endif- 1
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led代码
#include "stm32f10x.h" void LED_Init(void) { //START CLOCK RCC_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 } }- 1
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delay 延迟
#ifndef __DELAY_H #define __DELAY_H void Delay_us(uint32_t us); void Delay_ms(uint32_t ms); void Delay_s(uint32_t s); #endif- 1
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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0 SysTick->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); } }- 1
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光敏传感器
头文件
#ifndef _LightSensor_H #define _LightSensor_H void LightSensor_Init(void); uint8_t LightSensor_Get(void); #endif- 1
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c文件
#include "stm32f10x.h" void LightSensor_Init(void) { //START CLOCK RCC_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); }- 1
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对射式红外传感器驱动
c文件
#include "stm32f10x.h" // Device header uint16_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_InitTypeDef GPIO_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AFIO GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource14); // EXTI EXTI_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); // } // }- 1
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#ifndef __COUNT_SENSOR_H #define __COUNT_SENSOR_H void CountSensor_Init(void); uint16_t CountSensor_Get(void); #endif ```c #ifndef __COUNT_SENSOR_H #define __COUNT_SENSOR_H void CountSensor_Init(void); uint16_t CountSensor_Get(void); #endif- 1
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5-2 旋转编码器计次
#ifndef __ENCODER_H #define __ENCODER_H void Encoder_Init(void); int16_t Encoder_Get(void); #endif- 1
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#include "stm32f10x.h" // Device header int16_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); } }- 1
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TIM定时器驱动
#include "stm32f10x.h" // Device header void 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); // } // }- 1
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- 原文地址：https://blog.csdn.net/weixin_45079974/article/details/132991893
