STM32相关知识点总结讲解

1、GPIO 篇GPIO寄存器端口配置低位寄存器CRL;32位端口配置高位寄存器CRH;32位端口输入数据寄存器IDR;32位端口输出数据寄存器ODR;32位置位/复位寄存器BSRR;32位复位寄存器BRR;16位锁定内存命LCKR;32位GPIO库函数stm32f10x_gpio.hvoid GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct);void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);void GPIO_ResetBits(GPIO_TypeD

2、ef* GPIOx, uint16_t GPIO_Pin);void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal);void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal);typedef structuint16_t GPIO_Pin;GPIOSpeed_TypeDef GPIO_Speed;GPIOMode_TypeDef GPIO_Mode; GPIO_InitTypeDef;typedef enum Bit_RESET = 0,Bit_S

3、ET BitAction;GPIO相关类型名typedef struct_IO uint32_t CRL;_IO uint32_t CRH;_IO uint32_t IDR;_IO uint32_t ODR;_IO uint32_t BSRR;_IO uint32_t BRR;_IO uint32_t LCKR; GPIO_TypeDef;GPIO_Pin 取值#define GPIO_Pin_0#define GPIO_Pin_1#define GPIO_Pin_2#define GPIO_Pin_3#define GPIO_Pin_4#define GPIO_Pin_5#define GP

4、IO_Pin_6#define GPIO_Pin_7#define GPIO_Pin_8#define GPIO_Pin_9#define GPIO_Pin_10#define GPIO_Pin_11#define GPIO_Pin_12#define GPIO_Pin_13#define GPIO_Pin_14#define GPIO_Pin_ 15#define GPIO_Pin_All中断篇NVIC相关寄存器AIRCR寄存器P139中断使能设置寄存器ISERVECTKEY31:16DR/W中断使能清除寄存器ICERENDIANESS15DR中断悬挂设置寄存器ISPRPRIGROUP10:

5、8DR/W中断悬挂清除寄存器ICPRSYSRESETREQ2DW中断激活位寄存器IABRVECTCLRACTIVE1DW中断优先级寄存器IPVECTRESET0DW软件触发中断寄存器STIRTVOR寄存器 P138TBLBASE29 段 R/WTBLOFF28:7段 R 向量表起始地址EXTI相关寄存器中断屏蔽寄存器事件屏蔽寄存器上升沿触发选择寄存器 下降沿触发选择寄存器 软件中断事件寄存器 挂起寄存器EXTI_IMR EXTI_EMR EXTI_RTSR EXTI_FTSR EXTI_SWIER EXTIPR设置是否屏蔽中断请求线上的中断请求 设置是否屏蔽事件请求线上的中断请求 设置是否用上

6、升沿来触发中断和事件 设置是否用下降沿来触发中断和事件 用于软件触发中断/事件用于保存中断/事件请求线上是否有请求AFIO寄存器AFIO_EVCRAFIO_EXTICRxAFIO_MAPR事件控制寄存器外部中断配置寄存器复用重映射和调试I/O配置寄存器系统控制寄存器SCB p138EXTI 相关库函数stm32f10x_exti.hvoid GPIO_EXTILineConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource);设置IO 口与中断线的映射关系void EXTI_Init(EXTI_InitTypeDef* EXTI_InitSt

7、ruct);ITStatus EXTI_GetITStatus(uint32_t EXTI_Line);void EXTI_ClearITPendingBit(uint32_t EXTI_Line);初始化中断线：触发方式等 判断中断线中断状态，是否发生 清除中断线上的中断标志位AFIO相关函数stm32f10x_rcc.hstm32f10x_gpio.h使能AFIO时钟开启重映射RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);GPIO_PinRemapConfig(GPIO_Remap_USART1, ENABLE);根据第一个参数，来

8、确定是部分重映射还是全部重映射NVIC相关函数corecm3.hmisc.hvoid NVIC_PriorityGroupConfig(uint32_t NVIC_PriorityGroup);void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStruct);static _INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn) ; static _INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn) static _INLINE void NVIC_ClearPending

9、IRQ(IRQn_Type IRQn) static _INLINE uint32_t NVIC_GetActive(IRQn_Type IRQn)中断优先级分组函数 中断参数初始化函数 挂起中断解挂中断IABREXTI相关类型名GPIO_PortSource 取值#define GPIO_PortSourceGPIOA#define GPIO_PortSourceGPIOB#define GPIO_PortSourceGPIOC#define GPIO_PortSourceGPIOD#define GPIO_PortSourceGPIOE#define GPIO_PortSourceGPIO

10、Ftypedef structuint32_t EXTI_Line;EXTIMode_TypeDef EXTI_Mode;EXTITrigger_TypeDef EXTI_Trigger FunctionalState EXTI_LineCmd; EXTI_InitTypeDef;GPIO_PinSource 取值#defineGPIO_PinSource0#define GPIO_PinSource1#define GPIO_PinSource2#define GPIO_PinSource3#define GPIO_PinSource4#define GPIO_PinSource5#defi

11、ne GPIO_PinSource6#defineGPIO_PinSource7#define GPIO_PinSource8#define GPIO_PinSource9#define GPIO_PinSource10#define GPIO_PinSource11#define GPIO_PinSource12#define GPIO_PinSource13#define GPIO_PinSource14#define GPIO_PinSource15EXTI_Line 取值#define EXTI_Line0#define EXTI_Line1#define EXTI_Line2#def

12、ine EXTI_Line3#define EXTI_Line4#define EXTI_Line5#define EXTI_Line6#define EXTI_Line7#define EXTI_Line8#define EXTI_Line9#define EXTI_Line10#define EXTI_Line11#define EXTI_Line12#define EXTI_Line13#define EXTI_Line14#define EXTI_Line15#define EXTI_Line16#define EXTI_Line17#define EXTI_Line18#define

13、 EXTI_Line19typedef struct_IO uint32_t IMR;_IO uint32_t EMR;_IO uint32_t RTSR;_IO uint32_t FTSR;typedef enumEXTI_Mode_Interrupt = 0x00, EXTI_Mode_Event = 0x04 EXTIMode_TypeDef;typedef enump145 EXTI_Trigger_Rising = 0x08, EXTI_Trigger_Falling = 0x0C,EXTI_Trigger_Rising_Falling = 0x10 EXTITrigger_Type

14、Def;IO uint32_t SWIER;IO uint32_t PR; EXTI_TypeDef;NVIC相关类型名NVIC_PriorityGroup 取值#define NVIC_PriorityGroup_0#define NVIC_PriorityGroup_1#define NVIC_PriorityGroup_2#define NVIC_PriorityGroup_3#define NVIC_PriorityGroup_4typedef struct(uint8_t NVIC_IRQChannel;uint8_t NVIC_IRQChannelPreemptionPriorit

15、y;uint8_t NVIC_IRQChannelSubPriority;FunctionalState NVIC_IRQChannelCmd; NVIC_InitTypeDef;AFIO相关类型名typedef struct(_IO uint32_t EVCR;_IO uint32_t MAPR;_IO uint32_t EXTICR4;_IO uint32_t MAPR2; AFIO_TypeDef;USART 篇USART相关寄存器状态寄存器USART_SR反映USART单元状态数据寄存器USART_DR用于保存接收或发送的数据波特比率寄存器USART_BRR用于设置USART的波特率控

16、制寄存器1USART_CR1用于控制USART控制寄存器2USART_CR2用于控制USART控制寄存器3USART_CR3用于控制USART保护时间和预分频寄存器USART GTPR保护时间和预分频USART 相关库函数stm32f10x_usart.h串口初始化：波特率，数据字长，奇偶校验，硬件流控以及收发使能void USART_Init();void USART_Cmd();void USART_ITConfig();void USART_SendData();void USART_ClearFlag();void USART_ClearITPendingBit();uint16_tU

17、SART_ReceiveData();FlagStatus USART_GetFlagStatus();ITStatusUSART_GetITStatus();USART_DeInit();使能串口使能相关中断发送数据到串口， DR清除状态标志位清除中断状态标志位接受数据，从 DR读取接受到的数据获取状态标志位获取中断状态标志位串口复位FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG);void USART_ClearITPendingBit(USART_TypeDef* USARTx, uint

18、16_t USART_IT);串口传输状态获取USART相关类型名typedef struct p168(uint32_t USART_BaudRate;波特率uint16_t USART_WordLength;字长uint16_t USART_StopBits;停止位长度uint16_t USART_Parity;奇偶校验uint16_t USART_Mode;接收或发送模式uint16_t USART_HardwareFlowControl;硬件流控制 USART_InitTypeDef;typedef enum DISABLE = 0, ENABLE = !DISABLEtypedef

19、struct _IO uint16_t SR;_IO uint16_t DR;_IO uint16_t BRR;_IO uint16_t CR1;_IO uint16_t CR2;_IO uint16_t CR3;_IO uint16_t GTPR; USART_TypeDef;FunctionalState;#define USART_IT_PE#define USART_IT_TXE#define USART_IT_TC#define USART_IT_RXNEUSART_FLAG 取值#define USART_FLAG_CTS#define USART_FLAG_LBD#define

20、USART_FLAG_TXE#define USART_FLAG_TC#define USART_FLAG_RXNE#define USART_IT_IDLE#define USART_IT_LBD#define USART_IT_CTS#define USART_IT_ERR#define USART_FLAG_IDLE#define USART_FLAG_ORE#define USART_FLAG_NE#define USART_FLAG_FE#define USART_FLAG_PE通用定时器篇#define USART_IT_ORE#define USART_IT_NE#define

21、USART_IT_FEtypedef struct p169 uint16_t USART_Clock uint16_t USART_CPOL; uint16_t USART_CPHA; uint16_t USART_LastBit; USART_ClockInitTypeDef;USARTIT 取值TIMx相关寄存器 p189计数器当前值寄存器 CNT预分频寄存器TIMx_PSC自动重装载寄存器TIMx_ARR控制寄存器1TIMx_CR1控制寄存器2TIMx_CR2DMA 中断使能寄存器 TIMx DIERTIMx相关库函数stm32f10x_tim.h void TIM_TimeBaseI

22、nit(TIM_TypeDef* TIMx, TIM_TimeBaseInitTypeDef* TIM_TimeBaseInitStruct);定时器参数初始化void TIM_Cmd(TIM_TypeDef* TIMx, FunctionalState NewState) 定时器使能函数状态标志位获取和清除FlagStatus TIM_GetFlagStatus(TIM_TypeDef* TIMx, uint16_t TIM_FLAG);void TIM_ClearFlag(TIM_TypeDef* TIMx, uint16_t TIM_FLAG);ITStatus TIM_GetITSta

23、tus(TIM_TypeDef* TIMx, uint16_t TIM_IT);void TIM_ClearITPendingBit(TIM_TypeDef* TIMx, uint16_t TIM_IT);TIMx相关类型名TIM_TypeDef p191typedef structuint16_t TIM_Prescaler;uint16_t TIM_CounterMode;uint16_t TIM_Period;uint16_t TIM_ClockDivision;uint8_t TIM_RepetitionCounter; TIM_TimeBaseInitTypeDef;TIM_FLAG

24、 取值#define TIM_FLAG_Update#define TIM_FLAG_CC1#define TIM_FLAG_CC2#define TIM_FLAG_CC3TIM_IT取值#define TIM_IT_Update#define TIM_IT_CC1#define TIM_IT_CC2#define TIM_IT_CC3#define TIM_IT_CC4#define TIM_IT_COM#define TIM_IT_Trigger#define TIM_IT_BreakRTC相关寄存器RTC控制寄存器RTC预分频装载寄存器RTC预分频余数寄存器RTC计数器寄存器RTC闹钟寄

25、存器#define TIM_FLAG_CC4#define TIM_FLAG_COM #define TIM_FLAG_Trigger#define TIM_FLAG_BreakRTC篇P210(RTC_CRH ,RTC_CRL)(RTC_PRLH ,RTC_PRLL)(RTC_DIVH ,RTC_DIVL)(RTC_CNTH ,RTC_CNTL)(RTC_ALRH , RTC_ALRL)#define TIM_FLAG_CC1OF#define TIM_FLAG_CC2OF#define TIM_FLAG_CC3OF#define TIM_FLAG_CC4OF备份寄存器BKP_DRx(x=1

26、142)RTC相关库函数stm32f10x_rtc.h stm32f10x_pwr.h stm32f10x_rcc.h stm32f10x_bkp.hvoid RTC_ITConfig(uint16_t RTC_IT, FunctionalState NewState); RTC 中断设置函数void RTC_EnterConfigMode(void);允许 RTC 配置:CRL 位 CNFvoid RTC_ExitConfigMode(void);退出配置模式：CRL 位 CNFvoid RTC_SetCounter(uint32_t CounterValue);设置计数器值：CNTH/CNTLvoid RTC_SetPrescaler(uint32_t PrescalerValue);预分频配置：PRLH/PRLLvoid RTC_SetAlarm(uint32_t AlarmValue);闹钟设置：ALRH/ALRLvoid RTC_WaitForLastTask(void);等待上次操作完成：CRL 位 RTOFFvoid RTC_WaitForSynchro(void); 等待时钟同步： CRL 位 RSFvoid RTC_ClearITPendingBit(uint16_t RTC_IT);void RTC_ClearFlag(ui