#include "adc.h"
#include "stm32l1xx_adc.h"
#include "bsp.h"
//PB0-ADC8,PB1-ADC9
 __IO uint16_t VREFINT_CAL;
 __IO uint16_t VREFINT_DATA;
 __IO float VDDA_VAL;


void ADC15_Init(void)
{
		ADC_CommonInitTypeDef ADC_CommonInitStructure;
		GPIO_InitTypeDef GPIO_InitStructure;
		ADC_InitTypeDef ADC_InitStructure;
		/*----------------- ADC1 configuration with DMA enabled --------------------*/
    /* Enable the HSI oscillator */
    RCC_HSICmd(ENABLE);
		
		ADC_CommonInitStructure.ADC_Prescaler=ADC_Prescaler_Div4;
		ADC_CommonInit(&ADC_CommonInitStructure);
		
		
    /* Enable GPIOB clock */
    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
    /* Configure PB.14 (ADC Channe20) in analog mode */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_Init(GPIOC, &GPIO_InitStructure);

    /* Check that HSI oscillator is ready */
    while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);
		
		
		
		
		
    /* Enable ADC1 clock */
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
    /* ADC1 configuration */
    ADC_InitStructure.ADC_ScanConvMode = DISABLE;
    ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
    ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConvEdge_None;
    ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
	//	ADC_InitStructure.ADC_Resolution=ADC_Resolution_12b;//12位
    ADC_InitStructure.ADC_NbrOfConversion = 1;
    ADC_Init(ADC1, &ADC_InitStructure);
    
    ADC_TempSensorVrefintCmd(ENABLE);//内部通道17使能
    
    ADC_Cmd(ADC1, ENABLE);
    VREFINT_CAL = *(__IO uint16_t *)(0X1FF800F8);
}

//获得ADC值
//ch:通道值 0~3
u16 Get_Adc(u8 ch)   
{
  PWR_CTRLADC_H;//打开ADC电源
  
  	//设置指定ADC的规则组通道，一个序列，采样时间
	ADC_RegularChannelConfig(ADC1, ch, 1, ADC_SampleTime_384Cycles );	//ADC1,ADC通道    
  
	ADC_SoftwareStartConv(ADC1);		//使能指定的ADC1的软件转换启动功能	
	 
	while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));//等待转换结束

	return ADC_GetConversionValue(ADC1);	//返回最近一次ADC1规则组的转换结果
}
//读取带参考电压的ADC值
float Get_Adc_Ref(u8 ch)
{ 
  float ADC_V;
  u16 adc_ch;
  PWR_CTRLADC_H;//打开ADC电源 
 // Get_Adc(ch);
  VREFINT_DATA=Get_Adc(17);
  adc_ch=Get_Adc(ch);
  VDDA_VAL=(float)3*VREFINT_CAL/VREFINT_DATA;//获取VDDA电压
  ADC_V=((float)adc_ch/4095)*VDDA_VAL;
  return ADC_V;
}
float Get_Adc_Average(u8 ch,u8 times)
{
	float temp_val=0;
	u8 t;
	for(t=0;t<times;t++)
	{
		//temp_val+=Get_Adc_Ref(ch);
    temp_val+=Get_Adc(ch);
		delay_ms(10);
	}
  temp_val=((temp_val/times)/4095)*3.35;
  return temp_val;
	//return ((temp_val/times));
}  
	 
void ADC15_POWERON(void)
{
  PWR_CTRLADC_H;
};
void ADC15_POWEROFF(void)
{
  PWR_CTRLADC_L;
};

void ADC15_Process(void)
{
  float ADC_VALUVE;
  ADC_VALUVE=Get_Adc_Average(15,10);
  delay_ms(500);
  ADC_VALUVE=Get_Adc_Average(15,10);
  ADC_VALUVE*=(float)4.2;
  sprintf(data_common1.ADC_DATA,"%.3f,",ADC_VALUVE);
  
}