UM1561 datasheet(19/39 Pages) STMICROELECTRONICS

19 / 39 page

UM1561

Data sensing section for the closed loop control

Doc ID 023556 Rev 1

19/39

ADC_InitStructure.ADC_NbrOfChannel = 3;

ADC_Init(ADC2, &ADC_InitStructure);

/* ADC2 regular channel11 configuration */

ADC_RegularChannelConfig(ADC2, ADC_Channel_11, 1,

ADC_SampleTime_1Cycles5);

/* ADC2 regular channel13 configuration */

ADC_RegularChannelConfig(ADC2, ADC_Channel_13, 2,

ADC_SampleTime_1Cycles5); //PC3 PANEL VOLTAGE

/* ADC2 regular channel15 configuration not used */

ADC_RegularChannelConfig(ADC2, ADC_Channel_15, 3,

ADC_SampleTime_1Cycles5);

/*External trigger enabled*/

ADC_ExternalTrigConvCmd(ADC2, ENABLE);

ADC_ITConfig(ADC1, ADC_IT_EOC , ENABLE);

DS_ADC_EnableAndCalibrate(ADC1);

DS_ADC_EnableAndCalibrate(ADC2);

}

The ADC1 converts the following information at different channels:

●

ADC_Channel_10 -> AC line current

●

ADC_Channel_12 -> DC panel current

●

ADC_Channel_14 -> DC bus voltage.

/* ADC2 configuration -------------------------------------------------*/

ADC_InitStructure.ADC_Mode = ADC_Mode_RegSimult;

ADC_InitStructure.ADC_ScanConvMode = ENABLE;

ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;

ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;

ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Left;

ADC_InitStructure.ADC_NbrOfChannel = 3;

ADC_Init(ADC2, &ADC_InitStructure);

/* ADC2 regular channel11 configuration */

ADC_RegularChannelConfig(ADC2, ADC_Channel_11, 1,

ADC_SampleTime_1Cycles5);

/* ADC2 regular channel13 configuration */

ADC_RegularChannelConfig(ADC2, ADC_Channel_13, 2,

ADC_SampleTime_1Cycles5);

/* ADC2 regular channel15 configuration not used */

ADC_RegularChannelConfig(ADC2, ADC_Channel_15, 3,

ADC_SampleTime_1Cycles5);

/*External trigger enabled*/

ADC_ExternalTrigConvCmd(ADC2, ENABLE);

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