voidadcGPIOConfig(void)
{
GPIO_InitTypeDefgpioInitStruct;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);//使能PortA時鐘
gpioInitStruct.GPIO_Speed=GPIO_Speed_2MHz;
gpioInitStruct.GPIO_Pin=GPIO_Pin_4;
gpioInitStruct.GPIO_Mode=GPIO_Mode_AIN;
GPIO_Init(GPIOA,&gpioInitStruct);//GPIO口別弄錯
}

voidadcModeConfig(void)
{
ADC_InitTypeDefadcInitStruct;
adcInitStruct.ADC_Mode=ADC_Mode_Independent;
adcInitStruct.ADC_ScanConvMode=DISABLE;
adcInitStruct.ADC_ContinuousConvMode=DISABLE;//
adcInitStruct.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;
adcInitStruct.ADC_DataAlign=ADC_DataAlign_Right;
adcInitStruct.ADC_NbrOfChannel=1;
ADC_Init(ADC1,&adcInitStruct);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1,ENABLE);//使能ADC1時鐘

/*EnableADC1*/
ADC_Cmd(ADC1,ENABLE);

/*復(fù)位校準(zhǔn)寄存器*/
ADC_ResetCalibration(ADC1);
/*等待校準(zhǔn)寄存器復(fù)位完成*/
while(ADC_GetResetCalibrationStatus(ADC1));

/*ADC校準(zhǔn)*/
ADC_StartCalibration(ADC1);
/*等待校準(zhǔn)完成*/
while(ADC_GetCalibrationStatus(ADC1));

ADC_TempSensorVrefintCmd(ENABLE);

/*由于沒有采用外部觸發(fā)，所以使用軟件觸發(fā)ADC轉(zhuǎn)換*/
ADC_SoftwareStartConvCmd(ADC1,ENABLE);
}

voidadcInit(void)
{
adcGPIOConfig();
adcModeConfig();
}

floatgetPowerAD(void)
{
uint16_tADC_ConvertedValue;
floatADC_ConvertedValueLocal;

ADC_Cmd(ADC1,ENABLE);

ADC_SoftwareStartConvCmd(ADC1,ENABLE);//使能指定的ADC1的軟件轉(zhuǎn)換啟動功能

ADC_RegularChannelConfig(ADC1,ADC_Channel_4,1,ADC_SampleTime_239Cycles5);

while(!ADC_GetFlagStatus(ADC1,ADC_FLAG_EOC));//等待轉(zhuǎn)換結(jié)束

ADC_ConvertedValue=ADC_GetConversionValue(ADC1);//返回最近一次ADC1規(guī)則組的轉(zhuǎn)換結(jié)果

ADC_ConvertedValueLocal=(float)ADC_ConvertedValue/4096*3.3;//讀取轉(zhuǎn)換的AD值

ADC_ClearFlag(ADC1,ADC_FLAG_EOC);//清除轉(zhuǎn)化結(jié)束標(biāo)志位

returnADC_ConvertedValueLocal;
}