AD分别用注入组和规则组测内部温度

嘘嘘

AD分别用注入组和规则组测内部温度，但是两个程序测出来的内部温度总是差那么3度左右是什么原因呢？？
注入组AD配置
void ADC_Configuration1(void)
{
ADC_InitTypeDef ADC_InitStructure;

ADC_InitStructure.ADC_Mode=ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode=ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode=DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign=ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel=1;

ADC_Init(ADC1,&ADC_InitStructure);

//ADC_RegularChannelConfig(ADC1,ADC_Channel_10,1,ADC_SampleTime_239Cycles5);
ADC_InjectedSequencerLengthConfig(ADC1,1); 
ADC_InjectedChannelConfig(ADC1,ADC_Channel_16,1,ADC_SampleTime_239Cycles5);

// ADC_RegularChannelConfig(ADC1,ADC_Channel_16,1,ADC_SampleTime_239Cycles5);
// ADC_TempSensorVrefintCmd(ENABLE);


ADC_ExternalTrigInjectedConvConfig(ADC1,ADC_ExternalTrigInjecConv_None);

ADC_Cmd(ADC1,ENABLE);
ADC_ResetCalibration(ADC1);
while(ADC_GetResetCalibrationStatus(ADC1));

ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));

ADC_SoftwareStartInjectedConvCmd(ADC1, ENABLE);

}
规则组AD配置
void ADC_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;

ADC_InitStructure.ADC_Mode=ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode=DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode=DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign=ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel=1;

ADC_Init(ADC1,&ADC_InitStructure);

//ADC_RegularChannelConfig(ADC1,ADC_Channel_10,1,ADC_SampleTime_239Cycles5);

ADC_RegularChannelConfig(ADC1,ADC_Channel_16,1,ADC_SampleTime_239Cycles5);
ADC_TempSensorVrefintCmd(ENABLE);

ADC_Cmd(ADC1,ENABLE);


ADC_ResetCalibration(ADC1);
while(ADC_GetResetCalibrationStatus(ADC1));

ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));

ADC_SoftwareStartConvCmd(ADC1,ENABLE);

}
主函数是这样
注入组：
 ad1=0;
for(i=0;i<50;i++)
{
ADC_SoftwareStartConvCmd(ADC1,ENABLE);
while(!ADC_GetFlagStatus(ADC1,ADC_FLAG_JEOC));
ad1=ad1+ADC_GetInjectedConversionValue(ADC1,ADC_InjectedChannel_1);
}  
 ad1=ad1/50;
 printf("温度 =%f\r\n",(1.43-3.26/4095*ad1)/0.0043+25);
   }
规则组：
   while(1)
   {
     ad=0;
for(i=0;i<50;i++)
{
ADC_SoftwareStartConvCmd(ADC1,ENABLE);
while(!ADC_GetFlagStatus(ADC1,ADC_FLAG_EOC));
ad=ad+ADC_GetConversionValue(ADC1);
} 
 
 ad=ad/50;
 
 //printf("ad =%f\r\n",3.3/4095*ad);//??????????

 printf("???? =%f\r\n",(1.43-3.3/4095*ad)/0.0043+25);

 delay_ms(1000);
 delay_ms(1000);
 delay_ms(1000);
   }
还情大神不啬赐教，注入组的配置也是在论坛找到的，希望大神可以讲解一下，万分感谢

正点原子

帮顶.....

嘘嘘

有木有大神啊！！