LL_ADC_GetMultiDMATransfer() function

Returned value can be one of the following values: @arg LL_ADC_MULTI_REG_DMA_EACH_ADC @arg LL_ADC_MULTI_REG_DMA_LIMIT_1 @arg LL_ADC_MULTI_REG_DMA_LIMIT_2 @arg LL_ADC_MULTI_REG_DMA_LIMIT_3 @arg LL_ADC_MULTI_REG_DMA_UNLMT_1 @arg LL_ADC_MULTI_REG_DMA_UNLMT_2 @arg LL_ADC_MULTI_REG_DMA_UNLMT_3

If ADC multimode transfer by DMA is not selected: each ADC uses its own DMA channel, with its individual DMA transfer settings. If ADC multimode transfer by DMA is selected: One DMA channel is used for both ADC (DMA of ADC master) Specifies the DMA requests mode: - Limited mode (One shot mode): DMA transfer requests are stopped when number of DMA data transfers (number of ADC conversions) is reached. This ADC mode is intended to be used with DMA mode non-circular. - Unlimited mode: DMA transfer requests are unlimited, whatever number of DMA data transfers (number of ADC conversions). This ADC mode is intended to be used with DMA mode circular. If ADC DMA requests mode is set to unlimited and DMA is set to mode non-circular: when DMA transfers size will be reached, DMA will stop transfers of ADC conversions data ADC will raise an overrun error (overrun flag and interruption if enabled). How to retrieve multimode conversion data: Whatever multimode transfer by DMA setting: using function LL_ADC_REG_ReadMultiConversionData32(). If ADC multimode transfer by DMA is selected: conversion data is a raw data with ADC master and slave concatenated. A macro is available to get the conversion data of ADC master or ADC slave: see helper macro __LL_ADC_MULTI_CONV_DATA_MASTER_SLAVE (). CCR DDS LL_ADC_GetMultiDMATransfer