STM32 nach reset unterschiedliche Vref und temp werte

  RCC_ADCCLKConfig(RCC_PCLK2_Div8);

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

  ADC_TempSensorVrefintCmd(ENABLE);

  breakt(1);

  ADC_InitTypeDef ADC_InitStructure;

  ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;

  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;

  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;

  ADC_InitStructure.ADC_NbrOfChannel = 1;

  ADC_InitStructure.ADC_ScanConvMode = DISABLE;

  ADC_Init(ADC1,&ADC_InitStructure);

  NVIC_InitTypeDef NVIC_adc;

  NVIC_adc.NVIC_IRQChannel = ADC1_IRQn;

  NVIC_adc.NVIC_IRQChannelCmd = ENABLE;

  NVIC_adc.NVIC_IRQChannelPreemptionPriority = 0x0F;

  NVIC_adc.NVIC_IRQChannelSubPriority = 0x01;

  NVIC_Init(&NVIC_adc);

  ADC_RegularChannelConfig(ADC1, ADC_Channel_Vrefint, 1, ADC_SampleTime_239Cycles5);

  ADC_Cmd(ADC1, ENABLE);

  ADC_ITConfig(ADC1, ADC_IT_EOC, ENABLE);

  // Enable ADC1 reset calibration register

  ADC_ResetCalibration(ADC1);

  // Check the end of ADC1 reset calibration register

  while(ADC_GetResetCalibrationStatus(ADC1));

  // Start ADC1 calibration

  ADC_StartCalibration(ADC1);

  // Check the end of ADC1 calibration

  while(ADC_GetCalibrationStatus(ADC1));