1、RCC相關:
APB2啓動時鐘項:
RCC_APB2Periph_AFIO, RCC_APB2Periph_GPIOA, RCC_APB2Periph_GPIOB,
RCC_APB2Periph_GPIOC, RCC_APB2Periph_GPIOD, RCC_APB2Periph_GPIOE,
RCC_APB2Periph_GPIOF, RCC_APB2Periph_GPIOG, RCC_APB2Periph_ADC1,
RCC_APB2Periph_ADC2, RCC_APB2Periph_TIM1, RCC_APB2Periph_SPI1,
RCC_APB2Periph_TIM8, RCC_APB2Periph_USART1, RCC_APB2Periph_ADC3,
RCC_APB2Periph_ALL
APB2啓動函數:
RCC_APB2PeriphClockCmd(XX,ENABLE);
APB1啓動時鐘項:
RCC_APB1Periph_TIM2, RCC_APB1Periph_TIM3, RCC_APB1Periph_TIM4,
RCC_APB1Periph_TIM5, RCC_APB1Periph_TIM6, RCC_APB1Periph_TIM7,
RCC_APB1Periph_WWDG, RCC_APB1Periph_SPI2, RCC_APB1Periph_SPI3,
RCC_APB1Periph_USART2, RCC_APB1Periph_USART3, RCC_APB1Periph_USART4,
RCC_APB1Periph_USART5, RCC_APB1Periph_I2C1, RCC_APB1Periph_I2C2,
RCC_APB1Periph_USB, RCC_APB1Periph_CAN1, RCC_APB1Periph_BKP,
RCC_APB1Periph_PWR, RCC_APB1Periph_DAC, RCC_APB1Periph_ALL
APB1啓動函數:
RCC_APB2PeriphClockCmd(XX,ENABLE);
AHB啓動時鐘項:
RCC_AHBPeriph_DMA1
RCC_AHBPeriph_DMA2
RCC_AHBPeriph_SRAM
RCC_AHBPeriph_FLITF
RCC_AHBPeriph_CRC
RCC_AHBPeriph_FSMC
RCC_AHBPeriph_SDIO
AHB啓動函數:
RCC_AHBPeriphClockCmd (XX,ENABLE);
2、GPIO相關:
GPIO模式:
GPIO_Mode_AIN:模擬輸入 GPIO_Mode_IN_FLOATING:浮空輸入
GPIO_Mode_IPD:下拉輸入 GPIO_Mode_IPU:上拉輸入
GPIO_Mode_Out_OD:開漏輸出 GPIO_Mode_Out_PP:推輓輸出
GPIO_Mode_AF_OD:複用開漏輸出 GPIO_Mode_AF_PP:複用推輓輸出
GPIO速度:
GPIO_Speed_2MHz
GPIO_Speed_10MHz
GPIO_Speed_50MHz
GPIO引腳聲明:
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_x; x:1~15或者all
GPIO初始化函數:
GPIO_Init(GPIOx, &GPIO_InitStructure); x:A~G
注:需要定義GPIO結構體變量,GPIO_InitTypeDef GPIO_InitStructure;
3、ADC相關
最好需要重新初始化:ADC_DeInit(ADCx);
ADC工作模式選擇:
ADC_Mode_Independent:獨立工作
ADC_Mode_RegInjecSimult:混合同步+注入同步
ADC_Mode_RegSimult_AlterTrig:混合同步+交替觸發
ADC_Mode_InjecSimult_FastInterl:混合同步+快速交替
ADC_Mode_InjecSimult_SlowInterl:混合同步+慢速交替
ADC_Mode_InjecSimult:注入同步
ADC_Mode_RegSimult:規則同步
ADC_Mode_FastInterl:快速交替
ADC_Mode_SlowInterl:慢速交替
ADC_Mode_AlterTrig:交替觸發
通過ADC_InitStructure.ADC_Mode = XX進行賦值
ADC掃描使能:
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC連續 /單次模式選擇:
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC轉換控制方式:
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;//有軟件控制轉換
ADC數據對齊方式:ADC_DataAlign_Right:右對齊 / ADC_DataAlign_Right:左對齊
ADC_InitStructure.ADC_DataAlign =XX
ADC轉換通道數:
ADC_InitStructure.ADC_NbrOfChannel = X // X=1~16
ADC初始化函數:
ADC_Init(ADCx, &ADC_InitStructure);
注:在開始要定義結構體變量 ADC_InitTypeDef ADC_InitStructure
是否使能ADCx DMA :
ADC_DMACmd(ADCx, ENABLE);
使能ADCx:
ADC_Cmd(ADCx, ENABLE);
初始化ADC1校準寄存器:
ADC_ResetCalibration(ADCx);
檢測ADC1校準寄存器初始化是否完成:
while(ADC_GetResetCalibrationStatus(ADCx));
開始校準ADC1:
ADC_StartCalibration(ADCx);
檢測是否完成校準:
while(ADC_GetCalibrationStatus(ADCx));
ADC1轉換軟件啓動:
ADC_SoftwareStartConvCmd(ADCx, ENABLE);
4、DMA相關:
復位通道:
DMA_DeInit(DMAy_Channelx);//復位DMAy通道x,y=1時,x=1~7;y=2時,x=1~5
定義外設基地址,全局變量:
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;//地址自己定義
如:#define ADC1_DR_Address ((u32)0x4001244C)
定義DMA存儲器地址,全局變量u32
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC_ConvertedValue; //定義DMA通道存儲器地址
如:volatile unsigned short int ADC_ConvertedValue[8];
DMA外設方向:
DMA_InitStructure.DMA_DIR = XX;
DMA_DIR_PeripheralSRC:外設爲數據傳輸的來源,DMA_DIR_PeripheralDST:外設爲數據傳輸的目的地
DMA傳輸數量寄存器值,即緩存大小,單位由MemoryDataSize或PeripheralDataSize決定:
DMA_InitStructure.DMA_BufferSize = x;
//定義DMA緩衝區大小x,如8通道ADC,則x就爲8
DMA外設地址寄存器變不變:
DMA_InitStructure.DMA_PeripheralInc = x;
DMA_PeripheralInc_Disable:外設地址寄存器不變 DMA_PeripheralInc_Enable:外設地址寄存器遞增
DMA內存地址寄存器變不變:
DMA_InitStructure.DMA_MemoryInc = X;
DMA_MemoryInc_Disable:內存地址寄存器不變 DMA_MemoryInc_Enable:內存地址寄存器遞增
外設數據寬度:
DMA_InitStructure.DMA_PeripheralDataSize = X;
DMA_PeripheralDataSize_Byte 數據寬度爲8位
DMA_PeripheralDataSize_HalfWord 數據寬度爲16位
DMA_PeripheralDataSize_Word 數據寬度爲32位
存儲器數據寬度:
DMA_InitStructure.DMA_MemoryDataSize = X;
DMA_MemoryDataSize_Byte 數據寬度爲8位
DMA_MemoryDataSize_HalfWord 數據寬度爲16位
DMA_MemoryDataSize_Word 數據寬度爲32位
模式選擇:
DMA_InitStructure.DMA_Mode =x;
DMA_Mode_Circular: 循環模式
DMA_Mode_Normal:正常模式
通道軟件優先級設置:
DMA_InitStructure.DMA_Priority =x;
DMA_Priority_VeryHigh 最高優先級
DMA_Priority_High 高優先級
DMA_Priority_Medium 中優先級
DMA_Priority_Low 低優先級
DMA內存到內存的傳輸使能:
DMA_InitStructure.DMA_M2M = x
DMA_M2M_Enable:使能
DMA_M2M_Disable:未使能
DMA初始化函數:
DMA_Init(DMAy_Channelx , &DMA_InitStructure);
DMA通道使能函數:
DMA_Cmd(DMAy_Channelx , ENABLE); //使能DMA通道1
注:在開始要定義結構體變量 DMA_InitTypeDef DMA_InitStructure
5、NVIC相關:
優先級組設定:
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_x);
NVIC_PriorityGroup_0: 0 bits for pre-emption priority
4 bits for subpriority
NVIC_PriorityGroup_1: 1 bits for pre-emption priority
3 bits for subpriority
NVIC_PriorityGroup_2: 2 bits for pre-emption priority
2 bits for subpriority
NVIC_PriorityGroup_3: 3 bits for pre-emption priority
1 bits for subpriority
NVIC_PriorityGroup_4: 4 bits for pre-emption priority
0 bits for subpriority
設置中斷:
NVIC_InitStructure.NVIC_IRQChannel =x;
ADC1_2_IRQn = 18, /*!< ADC1 and ADC2 global Interrupt*/
USB_HP_CAN1_TX_IRQn = 19, /*!< USB Device High Priority or CAN1 TX Interrupts */
USB_LP_CAN1_RX0_IRQn = 20, /*!< USB Device Low Priority or CAN1 RX0 Interrupts */
CAN1_RX1_IRQn = 21, /*!< CAN1 RX1 Interrupt*/
CAN1_SCE_IRQn = 22, /*!<CAN1 SCE Interrupt*/
EXTI9_5_IRQn = 23, /*!< External Line[9:5] Interrupts*/
TIM1_BRK_IRQn = 24, /*!< TIM1 Break Interrupt*/
TIM1_UP_IRQn = 25, /*!< TIM1 Update Interrupt*/
TIM1_TRG_COM_IRQn = 26, /*!< TIM1 Trigger and Commutation Interrupt*/
TIM1_CC_IRQn = 27, /*!< TIM1 Capture Compare Interrupt*/
TIM2_IRQn = 28, /*!< TIM2 global Interrupt */
TIM3_IRQn = 29, /*!< TIM3 global Interrupt */
TIM4_IRQn = 30, /*!< TIM4 global Interrupt*/
I2C1_EV_IRQn = 31, /*!< I2C1 Event Interrupt*/
I2C1_ER_IRQn = 32, /*!< I2C1 Error Interrupt*/
I2C2_EV_IRQn = 33, /*!< I2C2 Event Interrupt */
I2C2_ER_IRQn = 34, /*!< I2C2 Error Interrupt */
SPI1_IRQn = 35, /*!< SPI1 global Interrupt*/
SPI2_IRQn = 36, /*!< SPI2 global Interrupt*/
USART1_IRQn = 37, /*!< USART1 global Interrupt*/
USART2_IRQn = 38, /*!< USART2 global Interrupt*/
USART3_IRQn = 39, /*!< USART3 global Interrupt*/
EXTI15_10_IRQn = 40, /*!< External Line[15:10] Interrupts*/
RTCAlarm_IRQn = 41, /*!< RTC Alarm through EXTI Line Interrupt*/
USBWakeUp_IRQn = 42, /*!< USB Device WakeUp from suspend through EXTI Line Interrupt */
TIM8_BRK_IRQn = 43, /*!< TIM8 Break Interrupt */
TIM8_UP_IRQn = 44, /*!< TIM8 Update Interrupt\*/
TIM8_TRG_COM_IRQn = 45, /*!< TIM8 Trigger and Commutation Interrupt
TIM8_CC_IRQn = 46, /*!< TIM8 Capture Compare Interrupt*/
ADC3_IRQn = 47, /*!< ADC3 global Interrupt*/
FSMC_IRQn = 48, /*!< FSMC global Interrupt */
SDIO_IRQn = 49, /*!< SDIO global Interrupt\*/
TIM5_IRQn = 50, /*!< TIM5 global Interrupt*/
SPI3_IRQn = 51, /*!< SPI3 global Interrupt*/
UART4_IRQn = 52, /*!< UART4 global Interrupt */
UART5_IRQn = 53, /*!< UART5 global Interrupt */
TIM6_IRQn = 54, /*!< TIM6 global Interrupt */
TIM7_IRQn = 55, /*!< TIM7 global Interrupt */
DMA2_Channel1_IRQn = 56, /*!< DMA2 Channel 1 global Interrupt*/
DMA2_Channel2_IRQn = 57, /*!< DMA2 Channel 2 global Interrupt */
DMA2_Channel3_IRQn = 58, /*!< DMA2 Channel 3 global Interrupt*/
DMA2_Channel4_5_IRQn = 59, /*!< DMA2 Channel 4 and Channel 5 global Interrupt*/
設置搶佔優先級:
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority =X; //搶佔優先級 X
設置子優先級爲:
NVIC_InitStructure.NVIC_IRQChannelSubPriority =X; //搶佔優先級 X
使能中斷:
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能
NVIC初始化函數:
NVIC_Init(&NVIC_InitStructure);
注:在開始時需要定義結構體變量NVIC_InitTypeDef NVIC _InitStructure;
6、USART相關:
USART波特率選擇:
USART_InitStructure.USART_BaudRate =XX; //波特率爲XX bps
數據位位數選擇:
USART_InitStructure.USART_WordLength = USART_WordLength_Xb;
//X爲8或者9,即8位或者9位數據位
停止位位數選擇:
USART_InitStructure.USART_StopBits = USART_StopBits_1; //停止位1位
#define USART_StopBits_1 ((uint16_t)0x0000)
#define USART_StopBits_0_5 ((uint16_t)0x1000)
#define USART_StopBits_2 ((uint16_t)0x2000)
#define USART_StopBits_1_5 ((uint16_t)0x3000)
有無校驗位選擇:
USART_InitStructure.USART_Parity = USART_Parity_No; //無校驗位
#define USART_Parity_No ((uint16_t)0x0000)
#define USART_Parity_Even ((uint16_t)0x0400)
#define USART_Parity_Odd ((uint16_t)0x0600)
有無硬件流控選擇:
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
//無硬件流控
#define USART_HardwareFlowControl_None ((uint16_t)0x0000)
#define USART_HardwareFlowControl_RTS ((uint16_t)0x0100)
#define USART_HardwareFlowControl_CTS ((uint16_t)0x0200)
#define USART_HardwareFlowControl_RTS_CTS ((uint16_t)0x0300)
模式選擇:
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收發模式
#define USART_Mode_Rx ((uint16_t)0x0004)
#define USART_Mode_Tx ((uint16_t)0x0008)
配置串口參數函數:
USART_Init(USARTx, &USART_InitStructure);
USARTx 可選:USART1, USART2, USART3, UART4 or UART5
注:在開始時需要定義結構體變量USART_InitTypeDef USART_InitStruct;
使能接收中斷:
USART_ITConfig(USARTx, USART_IT_RXNE, ENABLE);
使能發送緩衝空中斷:
USART_ITConfig(USARTx, USART_IT_TXE, ENABLE);
使能發送完成中斷:
USART_ITConfig(USARTx, USART_IT_TC, ENABLE)
使能USART:
USART_Cmd(USARTx, ENABLE);