コード例 #1
0
//-----------------------------------------------------------------//
//	Setup ADC
//	ADC_CLK = 4 MHz
//	ADC single conversion time is ADC_StartDelay +
//		(29 to 36 ADC clock cycles depending on ADC_DelayGo)
//	ADC clock = 4MHz / 128 = 31.250kHz (T = 32uS)
//-----------------------------------------------------------------//
void HW_ADCInit(void)
{
    ADC_InitTypeDef sADC;
    ADCx_InitTypeDef sADCx;

    // ADC Configuration
    // Reset all ADC settings
    ADC_DeInit();
    ADC_StructInit(&sADC);

    sADC.ADC_SynchronousMode      = ADC_SyncMode_Independent;
    sADC.ADC_StartDelay           = 10;
    sADC.ADC_TempSensor           = ADC_TEMP_SENSOR_Enable;
    sADC.ADC_TempSensorAmplifier  = ADC_TEMP_SENSOR_AMPLIFIER_Enable;
    sADC.ADC_TempSensorConversion = ADC_TEMP_SENSOR_CONVERSION_Enable;
    sADC.ADC_IntVRefConversion    = ADC_VREF_CONVERSION_Enable;
    sADC.ADC_IntVRefTrimming      = 1;
    ADC_Init (&sADC);

    // ADC1 Configuration
    ADCx_StructInit (&sADCx);
    sADCx.ADC_ClockSource      = ADC_CLOCK_SOURCE_ADC;
    sADCx.ADC_SamplingMode     = ADC_SAMPLING_MODE_SINGLE_CONV;
    sADCx.ADC_ChannelSwitching = ADC_CH_SWITCHING_Disable;
    sADCx.ADC_ChannelNumber    = ADC_CH_TEMP_SENSOR;
    sADCx.ADC_Channels         = 0;
    sADCx.ADC_LevelControl     = ADC_LEVEL_CONTROL_Disable;
    sADCx.ADC_LowLevel         = 0;
    sADCx.ADC_HighLevel        = 0;
    sADCx.ADC_VRefSource       = ADC_VREF_SOURCE_EXTERNAL;
    sADCx.ADC_IntVRefSource    = ADC_INT_VREF_SOURCE_EXACT;
    sADCx.ADC_Prescaler        = ADC_CLK_div_128;
    sADCx.ADC_DelayGo          = 0;		// CHECKME
    ADC1_Init (&sADCx);
    ADC2_Init (&sADCx);

    // Disable ADC interupts
    ADC1_ITConfig((ADCx_IT_END_OF_CONVERSION  | ADCx_IT_OUT_OF_RANGE), DISABLE);
    ADC2_ITConfig((ADCx_IT_END_OF_CONVERSION  | ADCx_IT_OUT_OF_RANGE), DISABLE);

    // ADC1 enable
    ADC1_Cmd (ENABLE);
    ADC2_Cmd (ENABLE);


    //-------------------//
    /*	ADC1_SetChannel(ADC_CH_TEMP_SENSOR);
    	ADC1_Start();
    	while( ADC_GetFlagStatus(ADC1_FLAG_END_OF_CONVERSION)==RESET );
      temp_adc = ADC1_GetResult();

    	ADC1_Start();
    	while( ADC_GetFlagStatus(ADC1_FLAG_END_OF_CONVERSION)==RESET );
      temp_adc = ADC1_GetResult();

    	temp_adc = temp_adc;
    	*/

}
コード例 #2
0
ファイル: TIM2Process.C プロジェクト: rolfhu/787H_MCU
/**************************实现函数********************************************
*函数原型:	unsigned int Get_ADCCH_Value(ADC2_Channel_TypeDef ADC_Channel)
*功  能:	单次采样某个ADC通道
*******************************************************************************/
unsigned int Get_ADCCH_Value(ADC2_Channel_TypeDef ADC_Channel)
{
	
	unsigned int SUM = 0;//临时和
	unsigned char j;
	//配置ADC转换通道,单次采样模式,ADC结果右对齐
	ADC2_Cmd(ENABLE);
	ADC2_ConversionConfig(ADC2_CONVERSIONMODE_SINGLE, ADC_Channel, ADC2_ALIGN_RIGHT);
	for (j = 0; j < 16 ; j++)
	{
		ADC2_StartConversion();               // 开始转换
		while (ADC2_GetFlagStatus() == RESET); // 等待转换完成
		SUM += ADC2_GetConversionValue();     // 求和
		ADC2_ClearFlag();
	}
	SUM = SUM>>4; 
	ADC2_Cmd(DISABLE);
	return(SUM);
}