ARM常用函数的配置函数（1） 结构体, 优先级, 外设

yuyang911220

本页所包含的配置函数有：
void SysTick_Configuration(void)；
void GPIO_Configuration(void)； //端口引脚功能的配置
void EXTI_Configuration(void)；//配置外部中断线
void NVIC_Configuration(void)； //配置中断的优先级、内部中断向量
void RCC_Configuration(void)； //配置系统及其外设的时钟
void IWDG_Configuration(void)；//看门狗的配置结构
void  TIM_Configuration(void)
void  ADC_configuration();
void DMA_Configuration(void);
void DAC_Configuration(void);
//同时需要配置的结构体变量
GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
*******//Cortex系统定时器（SysTick）*********************
*******************************************************
*******************************************************
void SysTick_Configuration(void)
{
   
   //选择系统定时器（SysTick）的时钟源
    SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK_Div8);
  
   SysTick_SetReload(250000);
   
  SysTick_CounterCmd(SysTick_Counter_Enable);

   SysTick_ITConfig(ENABLE);
}
*********///GPIO的配置程序***************************************
******************************************************************
*******************************************************************
void GPIO_Configuration(void) void RCC_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;


  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
   

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOB, &GPIO_InitStructure);
}
//中断线路初始化
void EXTI_Configuration(void)
{
   
  EXTI_InitStructure.EXTI_Line = EXTI_Line9;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);
   
  EXTI_InitStructure.EXTI_Line = EXTI_Line13;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);
}
///嵌套中断向量NVIC**********************************
/
    GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel=EXTI0_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
//为EXTI_Line9使能并配置中断向量

    //为EXTI_Line0使能并配置中断向量
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
NVIC_InitStructure.NVIC_IRQChannel=EXTI9_5_IRQChannel;
NVIC_Init(&NVIC_InitStructure);
//为EXTI_Line9使能并配置中断向量

//为EXTI_Line13使能并配置中断向量
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
NVIC_InitStructure.NVIC_IRQChannel=EXTI15_10_IRQChannel;
NVIC_Init(&NVIC_InitStructure);
}
********************************************************************
**************系统时钟的配置RCC_Configuration**********************
void RCC_Configuration(void)
{

  RCC_DeInit();
  
  RCC_HSEConfig(RCC_HSE_ON);
   
  HSEStartUpStatus = RCC_WaitForHSEStartUp();
    if(HSEStartUpStatus == SUCCESS)
  {
   
    RCC_HCLKConfig(RCC_SYSCLK_Div1);
      
    RCC_PCLK2Config(RCC_HCLK_Div1);
      
    RCC_PCLK1Config(RCC_HCLK_Div2);
      
    FLASH_SetLatency(FLASH_Latency_2);
   
    FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
  */
    RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
     
    RCC_PLLCmd(ENABLE);
     
    while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
    {
    }
   
    RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
      
    while(RCC_GetSYSCLKSource() != 0x08)
    {
    }

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOB |RCC_APB2Periph_AFIO, ENABLE);
  
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
  }
*****************//初始化独立看门狗******************************
********************************************************************
********************************************************************
********************************************************************
void IWDG_Configuration(void)
{


  //是能或者失能对寄存器IWDG_PR和IWDG_RLR
  IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);

  //选定工作频率
  IWDG_SetPrescaler(IWDG_Prescaler_32);
  //设置重装载值
  IWDG_SetReload(230);

  //按照重装载器的值重装载IWDG计数器的值-----------此动作相当于“喂狗”
  IWDG_ReloadCounter();

  //使能IWDG
  IWDG_Enable();
}
/ *******************
/
   TIM_DeInit(TIM1); //将外设TIMx寄存器重设为缺省值
//2、基础设置

  TIM1_TimeBaseStructure.TIM_Prescaler = 0x0; //预分频,此值+1为分频的除数得到计数周期；
  TIM1_TimeBaseStructure.TIM_Period = 0xFFFF;//计数周期 (即当计数值达到“计数值”时，刚好用时一个计数周期)
  TIM1_TimeBaseStructure.TIM_ClockDivision = 0x0;//时钟因子
  TIM1_TimeBaseStructure.TIM_RepetitionCounter = 0x0;
  TIM1_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //计数器模式
             //TIM_CounterMode_Dowm            向下计数
             //TIM_CounterMode_CenterAligned1 中心对齐方式1
            // TIM_CounterMode_CenterAligned2 中心对齐方式2
            // TIM_CounterMode_CenterAligned3 中心对齐方式3
  TIM_TimeBaseInit(TIM1,&TIM1_TimeBaseStructure);
// 3、输出通道设置