STM相关知识点总结

1、GPIO 篇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 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 位锁定寄存器LCKR;32 位GPIO 库函数void GPIO_Init(

2、GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct);void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);void GPIO_ResetBits(GPIO_TypeDef* 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 Po

3、rtVal);GPIO 相关类型名typedef struct uint16_t GPIO_Pin;GPIOSpeed_TypeDef GPIO_Speed; GPIOMode_TypeDef GPIO_Mode; GPIO_InitTypeDef;typedef enum Bit_RESET = 0, Bit_SET BitAction;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 G

4、PIO_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IS

5、PRPRIGROUP10:8DR/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 P138TBLBASE 29 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 EXTI_PR设置是否屏蔽中断请求线上的中断请求设置是否

6、屏蔽事件请求线上的中断请求 设置是否用上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_EVCR事件控制寄存器AFIO_EXTICRx外部中断配置寄存器AFIO_MAPR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void 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*

7、 EXTI_InitStruct);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RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);使能 AFIO 时钟GPIO_PinRemapConfig(GPIO_Remap_USART1, ENABLE);根据第一个参数，来确定是部分重映射还是全部重映射开启重映射

8、NVIC 相关函数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IABRvoid NVIC_PriorityGroupConfig(uint32_t NVIC_PriorityGroup);void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStruct);EXTI 相关类型名GPIO_PortSource 取值#define GPIO_PortSourceGPIOA #define GPIO_PortSourceGPIOB #define GPIO_PortSourceGPIOC #define GPIO_PortSourceGPIOD #defin

9、e GPIO_PortSourceGPIOE #define GPIO_PortSourceGPIOFstatic _INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn) ； static _INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn) static _INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn) static _INLINE uint32_t NVIC_GetActive(IRQn_Type IRQn)typedef structuint32_t

10、 EXTI_Line; EXTIMode_TypeDef EXTI_Mode;EXTITrigger_TypeDef EXTI_TriggerFunctionalState EXTI_LineCmd; EXTI_InitTypeDef;GPIO_PinSource 取值#defineGPIO_PinSource0#define GPIO_PinSource6#define GPIO_PinSource12#define GPIO_PinSource1#defineGPIO_PinSource7#define GPIO_PinSource13#define GPIO_PinSource2#def

11、ine GPIO_PinSource8#define GPIO_PinSource14#define GPIO_PinSource3#define GPIO_PinSource9#define GPIO_PinSource15#define GPIO_PinSource4#define GPIO_PinSource10#define GPIO_PinSource5#define GPIO_PinSource11EXTI_Line 取值#define EXTI_Line0#define EXTI_Line7#define EXTI_Line14#define EXTI_Line1#define

12、EXTI_Line8#define EXTI_Line15#define EXTI_Line2#define EXTI_Line9#define EXTI_Line16#define EXTI_Line3#define EXTI_Line10#define EXTI_Line17#define EXTI_Line4#define EXTI_Line11#define EXTI_Line18#define EXTI_Line5#define EXTI_Line12#define EXTI_Line19#define EXTI_Line6#define EXTI_Line13typedef str

13、uct_IO uint32_t IMR;_IO uint32_t EMR;_IO uint32_t RTSR;_IO uint32_t FTSR;_IO uint32_t SWIER; _IO uint32_t PR; EXTI_TypeDef;typedef enumEXTI_Mode_Interrupt = 0x00,EXTI_Mode_Event = 0x04EXTIMode_TypeDef;typedef enum p145 EXTI_Trigger_Rising = 0x08,EXTI_Trigger_Falling = 0x0C, EXTI_Trigger_Rising_Falli

14、ng = 0x10 EXTITrigger_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 structuint8_t NVIC_IRQChannel;uint8_t NVIC_IRQChannelPreemptionPriority;uint8_t NVIC_IRQCha

15、nnelSubPriority; 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 的波特率控制寄存器 1USART_CR1

16、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void USART_Init();void USART_Cmd();void USART_ITConfig();void USART_SendData();void USART_ClearFlag(); void USART_ClearITPendingBit(); uint16_t USART_ReceiveData(); FlagStatus USART_GetFlagStatus();

17、 ITStatus USART_GetITStatus(); USART_DeInit();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, uint16_t USART_IT

18、); 串口传输状态获取USART 相关类型名typedef struct p168uint32_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 struct _IO uint16_t SR;_IO uint16_t DR;_IO uint16_t BR

19、R;_IO uint16_t CR1;_IO uint16_t CR2;_IO uint16_t CR3;_IO uint16_t GTPR; USART_TypeDef;USART_IT 取值#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 USART_FLAG_TXE #define USART_FLAG_TC#define USART_FLAG_RX

20、NE#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 USART_IT_FEtypedef structp169 uint16_t USART_Cloc

21、kuint16_t USART_CPOL;uint16_t USART_CPHA;uint16_t USART_LastBit; USART_ClockInitTypeDef;typedef enum DISABLE = 0, ENABLE = !DISABLE FunctionalState;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void TIM_TimeBaseInit(TIM_TypeDef* T

22、IMx, 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_GetITStatus(TIM_TypeDef*

23、 TIMx, uint16_t TIM_IT); void TIM_ClearITPendingBit(TIM_TypeDef* TIMx, uint16_t TIM_IT);TIMx 相关类型名TIM_TypeDef p191typedef structTIM_IT 取值#define TIM_IT_Update#define TIM_IT_CC4uint16_t TIM_Prescaler;#define TIM_IT_CC1#define TIM_IT_COMuint16_t TIM_CounterMode;#define TIM_IT_CC2#define TIM_IT_Trigger

24、uint16_t TIM_Period;uint16_t TIM_ClockDivision; uint8_t TIM_RepetitionCounter; TIM_TimeBaseInitTypeDef;#define TIM_IT_CC3#define TIM_IT_BreakTIM_FLAG 取值#define TIM_FLAG_Update#define TIM_FLAG_CC4#define TIM_FLAG_CC1OF#define TIM_FLAG_CC1#define TIM_FLAG_COM#define TIM_FLAG_CC2OF#define TIM_FLAG_CC2#

25、define TIM_FLAG_Trigger#define TIM_FLAG_CC3OF#define TIM_FLAG_CC3#define TIM_FLAG_Break#define TIM_FLAG_CC4OFRTC 篇RTC 相关寄存器P210RTC 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 闹钟寄存器(RTC_CRH ， RTC_CRL) (RTC_PRLH ， RTC_PRLL) (RTC_DIVH ， RTC_DIVL) (RTC_CNTH ， RTC_CNTL) (RTC_ALRH ， RTC_ALRL)备份寄存器 BKP_DRx(x=1142)RTC 相关库函数void RTC_ITConfig