DA驱动程序 函数配置

//Data：2011-11月

//功能：DA驱动程序，函数配置
#include "main.h"
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
u8 Rx_Buffer[128*2];
vu32 FLASH_ID = 0;
#define  M25P64_FLASH_ID        0x202017
float AD_value;
//u16 colors[]={
//  0xf800,0x07e0,0x001f,0xffe0,0x0000,0x07ff,0xf81f,0xffff ,0x7bef
//};



static vu32 TimingDelay = 0;
static vu32 LedShowStatus = 0;
static volatile ErrorStatus HSEStartUpStatus = SUCCESS;
void  ADC_configuration();
 

int main(void)
{
   RCC_Init();
   ADC_configuration();
   LCD_Display_Color(0xffe0);
   LCD_SetBackColor(0xffe0);
   LCD_SetTextColor(0x07e0);
   
    while (1)
     {
  AD_value=ADC_GetConversionValue(ADC1);
  AD_value=AD_value/4095.0*3.3;
  AD_value=AD_value*1000.0;
  Display_variate(60,16,AD_value);
     } 
}

void RCC_Init(void)
{
  RCC_DeInit();

 
  RCC_HSEConfig(RCC_HSE_ON);

 
  HSEStartUpStatus = RCC_WaitForHSEStartUp();

  if(HSEStartUpStatus == SUCCESS)
  {
   
    FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

   
    FLASH_SetLatency(FLASH_Latency_2);
   
   
    RCC_HCLKConfig(RCC_SYSCLK_Div1);
 
   
    RCC_PCLK2Config(RCC_HCLK_Div1);
 
   
    RCC_PCLK1Config(RCC_HCLK_Div2);
 
   
    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_GPIOB |RCC_APB2Periph_GPIOC
         | RCC_APB2Periph_GPIOD  | RCC_APB2Periph_AFIO, ENABLE);
   
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 , ENABLE);
 
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);

 
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);

 
 
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM4, ENABLE);

 
       
    SysTick_Config();
   
    STM3210B_LCD_Init();
 
   
    SPI_FLASH_Init();

   
    FLASH_ID = SPI_FLASH_ReadID();
   
    if(FLASH_ID == M25P64_FLASH_ID)
    {
     
      GPIO_WriteBit(GPIOC, GPIO_Pin_6, Bit_SET);
    }
    else
    {
     
      GPIO_WriteBit(GPIOC, GPIO_Pin_7, Bit_SET);
    }     
}

 void SysTick_Config(void)
{
  
   SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
 
  
   SysTick_SetReload(720000);
 
  
   SysTick_ITConfig(ENABLE);
}

void Delay(u32 nCount)
{
  TimingDelay = nCount;

 
  SysTick_CounterCmd(SysTick_Counter_Enable);
 
  while(TimingDelay != 0)
  {
  }

 
  SysTick_CounterCmd(SysTick_Counter_Disable);

 
  SysTick_CounterCmd(SysTick_Counter_Clear);
}

void Decrement_TimingDelay(void)
{
  if (TimingDelay != 0x00)
  {
    TimingDelay--;
  }
}
  ////////////AD的配置函数/////////////////////////////
void  ADC_configuration()
{
 
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
  ADC_InitStructure.ADC_ScanConvMode = ENABLE;
  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
  ADC_InitStructure.ADC_NbrOfChannel=1;  //指定用于转换的通道数
  ADC_Init(ADC1, &ADC_InitStructure);
  
  ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 1, ADC_SampleTime_55Cycles5);
  
  ADC_Cmd(ADC1, ENABLE);
    
  ADC_ResetCalibration(ADC1);
 
  while(ADC_GetResetCalibrationStatus(ADC1));//等待ADC的校准寄存器被设置完毕
  
  ADC_StartCalibration(ADC1);
 
  while(ADC_GetCalibrationStatus(ADC1));
  
  ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}