Repeat sequence of ADC conversions using DMA

Hi All,

I need to do 13 ADC conversions using DMA. And also need to repeat it 10 times so that I can take average for all the 13 values. Here's the code I'm using:

static uint16_t adcDataArrayBeforeAvg[130];

HAL_ADC_Start_DMA(&hadc, (uint32_t *)adcDataArrayBeforeAvg, 130);

ADC Config:

 hadc.Init.EOCSelection = ADC_EOC_SEQ_CONV;

 hadc.Init.LowPowerAutoWait = DISABLE;

 hadc.Init.LowPowerAutoPowerOff = DISABLE;

 hadc.Init.ContinuousConvMode = DISABLE;

 hadc.Init.DiscontinuousConvMode = DISABLE;

 hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;

 hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;

 hadc.Init.DMAContinuousRequests = ENABLE;

 hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED;

I'm expecting the DMA to repeat the sequence of conversions 10 times and generate an interrupt finally. But HAL_ADC_ConvCpltCallback is not getting called.

NOTE: If I just convert 13 values like below, HAL_ADC_ConvCpltCallback is getting invoked.

HAL_ADC_Start_DMA(&hadc, (uint32_t *)adcDataArrayBeforeAvg, 13);

Is what I'm trying to achieve possible or am I doing something wrong here?

Thanks,

Prakash