#include "ADC.h"
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void ADC_Configuration(void)
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{
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ADC_InitTypeDef ADC_InitStructure;
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GPIO_InitTypeDef GPIO_InitStructure;
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//GPIO??
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;//GPIO??????
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GPIO_Init(GPIOA, &GPIO_InitStructure);//?PA0???
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ADC_DeInit(ADC1);//??
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1,ENABLE);
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ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;//ADC1?ADC2????,????
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ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;//ADC????,????????
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ADC_InitStructure.ADC_ScanConvMode = DISABLE; //ADC?????(ENABLE??????)
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ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;//????ADC
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ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;//?????
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ADC_InitStructure.ADC_NbrOfChannel = 1;//ADC??????,??????ADC,????1
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ADC_Init(ADC1,&ADC_InitStructure);//???
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ADC_Cmd(ADC1, ENABLE);//??
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//ADC??
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ADC_ResetCalibration(ADC1);//??ADC???
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while(ADC_GetResetCalibrationStatus(ADC1));//??????
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ADC_StartCalibration(ADC1);//????
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while(ADC_GetCalibrationStatus(ADC1));//??????
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ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_1Cycles5);
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}
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u16 Get_ADC_Value(void)
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{
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ADC_SoftwareStartConvCmd(ADC1, ENABLE);//????,ADC????
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while(ADC_GetSoftwareStartConvStatus(ADC1));//??????
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return ADC_GetConversionValue(ADC1);//?????ADC?
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}
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float bat_volt;
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uint8_t Get_Battary(void)
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{static float last_value = 100;
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static u8 first=1;
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bat_volt = (float)Get_ADC_Value()/621; //(value/4096*3.3*2-3.5)/0.7
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if(bat_volt>=3.5)
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{
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if(first)
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{
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first = 0;
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last_value =(bat_volt-3.5)*143;
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}
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last_value = 0.9*last_value + (bat_volt-3.5)*14.3;
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if(last_value>100)
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last_value = 100;
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if(last_value<0)
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last_value = 0;
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}
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return last_value;
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}
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