#include "ADC.h"
void ADC_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;

//GPIO??
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;//GPIO??????
GPIO_Init(GPIOA, &GPIO_InitStructure);//?PA0???
	
ADC_DeInit(ADC1);//??

	RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1,ENABLE);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;//ADC1?ADC2????,????
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;//ADC????,????????
ADC_InitStructure.ADC_ScanConvMode = DISABLE;   //ADC?????(ENABLE??????)
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;//????ADC
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;//?????
ADC_InitStructure.ADC_NbrOfChannel = 1;//ADC??????,??????ADC,????1

	
ADC_Init(ADC1,&ADC_InitStructure);//???
ADC_Cmd(ADC1, ENABLE);//??

//ADC??
ADC_ResetCalibration(ADC1);//??ADC???
while(ADC_GetResetCalibrationStatus(ADC1));//??????

ADC_StartCalibration(ADC1);//????
while(ADC_GetCalibrationStatus(ADC1));//??????

ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_239Cycles5);

}
static u16 Get_ADC_Value()
{
    ADC_SoftwareStartConvCmd(ADC1, ENABLE);//????,ADC????
    while(ADC_GetSoftwareStartConvStatus(ADC1));//??????
    return ADC_GetConversionValue(ADC1);//?????ADC?
}
float bat_volt;
uint8_t Get_Battary(void)
{static float last_value = 100;
static u8 first=1;
	bat_volt = (float)Get_ADC_Value()/621;  //(value/4096*3.3*2-3.5)/0.7
	if(bat_volt>=3.5)
	{
		if(first)
		{
		first = 0;
			last_value =(bat_volt-3.5)*143;
		}
		last_value = 0.9*last_value + (bat_volt-3.5)*14.3;
	if(last_value>100)
		last_value = 100;
	if(last_value<0)
		last_value = 0;
}
	return last_value;	
}