#include "adc.h"
 #include "ctrl.h"
 #include "task.h"
 //初始化AD
//#ifdef _DEBUG
double Result[3];
//#endif

#define M 2 
vu16  AD_Value[M];

 
u16 ADStove[MAX_STOVE_CNT]={0}; 
u16 ADPool[MAX_POL_CNT]={0};                 //
//double ADStoveSpeedSum    = 0.0f;    //升温速度微分累加
long ADStovePtr= 0;
long ADPoolPtr= 0 ;

  
 void InitAD(void)
 {       
    ADC_InitTypeDef ADC_InitStructure; 
    GPIO_InitTypeDef GPIO_InitStructure;   
    DMA_InitTypeDef DMA_InitStructure;    
    NVIC_InitTypeDef NVIC_InitStructure;             

    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1,ENABLE);
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1|RCC_APB2Periph_GPIOA, ENABLE );  
                                                                                       
    GPIO_InitStructure.GPIO_Pin     = GPIO_Pin_0|GPIO_Pin_1;  
    GPIO_InitStructure.GPIO_Mode     = GPIO_Mode_AIN;             
	 GPIO_InitStructure.GPIO_Speed     = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA , &GPIO_InitStructure);  
       
    //////////////////////////////////////////////////////////////////////
     
   
    DMA_DeInit(DMA1_Channel1);   //将DMA的通道1寄存器重设为缺省值
    DMA_InitStructure.DMA_PeripheralBaseAddr =  (u32)&ADC1->DR;  //DMA外设ADC基地址
    DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&AD_Value;  //DMA内存基地址
    DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;  //内存作为数据传输的目的地
    DMA_InitStructure.DMA_BufferSize = M;  //DMA通道的DMA缓存的大小
    DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;  //外设地址寄存器不变
    DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;  //内存地址寄存器递增
    DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;  //数据宽度为16位
    DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; //数据宽度为16位
    DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;//DMA_Mode_Normal;//DMA_Mode_Circular;  //工作在循环缓存模式
    DMA_InitStructure.DMA_Priority = DMA_Priority_High; //DMA通道 x拥有高优先级 
    DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;  //DMA通道x没有设置为内存到内存传输
    DMA_Init(DMA1_Channel1, &DMA_InitStructure);  //根据DMA_InitStruct中指定的参数初始化DMA的通道  
    DMA_ITConfig(DMA1_Channel1 ,DMA_IT_TC,ENABLE);
    DMA_Cmd(DMA1_Channel1, ENABLE);         //启动DMA通道
    /////////////////////////////////////////
      
  
      /* Enable DMA2 channel6 IRQ Channel */
      NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel1_IRQn;
      NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
      NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
      NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
      NVIC_Init(&NVIC_InitStructure);    
    /////////////////////////////////////////
    
     //APB2  ADC 时钟不能太快  APB2设置为 CLK/8    
    ADC_DeInit(ADC1);  //将外设 ADC1 的全部寄存器重设为缺省值
    //RCC_ADCCLKConfig(RCC_PCLK2_Div8);   //配置ADC时钟分频    //adc clock 9MHz
    RCC_ADCCLKConfig(RCC_PCLK2_Div2);   //配置ADC时钟分频  2015.12.26加速一倍,将2.2uF电容拆除
    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 = M;  
    ADC_Init(ADC1,&ADC_InitStructure); 


    ADC_RegularChannelConfig(ADC1,ADC_Channel_0,1,ADC_SampleTime_71Cycles5);      //252 个周期 
    ADC_RegularChannelConfig(ADC1,ADC_Channel_1,2,ADC_SampleTime_239Cycles5);  
    //ADC_RegularChannelConfig(ADC1,ADC_Channel_2,3,ADC_SampleTime_239Cycles5);  
 //原设置 72M PCLK1 1分频 ADC 4分频                         ADC_SampleTime_239Cycles5
//新改设置              ADC 7MHz    5000次平均              ADC_SampleTime_239Cycles5
//60mS  抵抗工频干扰      1个71.5 还有一个239.5 60ms  1250倍
//将控温周期修改为1S
//    ADStovePtr        = 0;
//    ADSTOVE_ADS1242    = 0;
//    PE15_O = 1; //小电极打开 
//转换时间 1.5
//7.5   
    ADC_Cmd(ADC1,ENABLE);   
    ADC_ResetCalibration(ADC1);   
    while(ADC_GetResetCalibrationStatus(ADC1));   
    ADC_StartCalibration(ADC1);   
    while(ADC_GetCalibrationStatus(ADC1));  
    /////////////////////////////////////////  
    ADC_DMACmd(ADC1,ENABLE);   
    ADC_SoftwareStartConvCmd(ADC1,ENABLE);  
     
 }
//AD读取任务      
double ADToVol(int iADValue)
{
    double i = VREF>>3;
    i*=iADValue;
    i/=0xFFFFFF;
    return i;
}

volatile unsigned char Int0IntFlag = 0;  
volatile unsigned char gcChannel   = 0;
volatile unsigned char count   = 0;
 


long lPreTemp,lTemp,ADStoveSpeedSum2;
long deltaTempErr;
//long lPreAD,lCurAD;
void DMA1_Channel1_IRQHandler(void)
{         
    int tempValue = 0;  
    DMA_ClearITPendingBit(DMA1_IT_TC1);          
    //update Temperature value
    disable();
    lPreTemp             = lTemp ;  
    lTemp               -= ADStove[ADStovePtr]; 
    deltaTempErr        =  (long)AD_Value[1] - (long)ADStove[ADStovePtr];
    ADStove[ADStovePtr]  = AD_Value[1];
    lTemp               += ADStove[ADStovePtr];
    ADStovePtr           = (++ADStovePtr)%MAX_STOVE_CNT;  
    
//    lTemp               -= ((double)lTemp)/MAX_STOVE_CNT;      扣减平均值滞后比较厉害
//    lTemp               += AD_Value[1];    
    
    //warn speed sum........ 
    //主板拆除了2.2uF滤波电容两个
    //ADStoveSpeedSum     -=  ADStoveSpeedSum/ADStoveSpeedDepth ;
    //ADStoveSpeedSum     += (lTemp- lPreTemp);//(lCurAD - lPreAD);
    //ADStoveSpeedSum2     = ADStoveSpeedSum;
    //update temperature 
    IED.AdValue.lPreTemp    = IED.AdValue.lTemp; 
    IED.AdValue.lTemp       = lTemp;
    
    //if(labs(deltaTempErr)>0x2)                                           //未调试
     //   IED.AdValue.lTemp       += deltaTempErr*MAX_STOVE_CNT/20;   //加上微分值.增加响应速度
    
    //update sensor value
    IED.AdValue.lPreChlPol  = IED.AdValue.lChlPol ;    
    IED.AdValue.lChlPol    -= ADPool[ADPoolPtr];    
    ADPool[ADPoolPtr]       = AD_Value[0];
    IED.AdValue.lChlPol    += ADPool[ADPoolPtr];       
    ADPoolPtr=(++ADPoolPtr)%MAX_POL_CNT;      
    
    enable();
    //大电极电压............
    //IED.AdValue.lPreChlVDJ    = IED.AdValue.lVDJ ;
    //IED.AdValue.lVDJ         = AD_Value[2];    
    ///////////////
    //#ifdef _DEBUG
    Result[0] = GetTempVol();
    Result[1] = GetPolVol();
    Result[2] = GetPolVol2();
    //printf("%fmV,%fmV,%fmV\n",dResult[0],dResult[1],dResult[2]);
    //#endif
}

double GetTempVol(void)
{
    double dResult;
    dResult =  IED.AdValue.lTemp    ; 
    dResult*=VREF;
    dResult/=0xFFF;    
    dResult/=GAIN_TEMP;
    dResult/=MAX_STOVE_CNT;         
      return dResult;
}

double GetPolVol(void)
{ 
    double dResult; 
    dResult =  IED.AdValue.lPreChlPol    ;
    dResult*=VREF; 
    dResult/=0xFFFL;    
    dResult/=GAIN_POL;     
    dResult/=MAX_POL_CNT;   
    return dResult     ;
}

double GetPolVol2(void)
{ 
    double dResult; 
    dResult =  AD_Value[0];
    dResult*=VREF; 
    dResult/=0xFFFL;    
    dResult/=GAIN_POL;      
    return dResult     ;
}

double GetDJVol(void)
{
    double dResult;
    dResult =  IED.AdValue.lVDJ    ;
    dResult*=VREF;
    dResult/=0xFFF;           
      return dResult/GAIN_DJ      ; 
}