ADC DMA management

Collaboration diagram for ADC DMA management:

Functions
__STATIC_INLINE uint32_t	LL_ADC_DMA_GetRegAddr (const ADC_TypeDef *ADCx, uint32_t Register)
	Function to help to configure DMA transfer from ADC: retrieve the ADC register address from ADC instance and a list of ADC registers intended to be used (most commonly) with DMA transfer. More...
__STATIC_INLINE uint32_t	LL_ADC_DMA_GetRegAddr (ADC_TypeDef *ADCx, uint32_t Register)

Detailed Description

Function Documentation

LL_ADC_DMA_GetRegAddr()

__STATIC_INLINE uint32_t LL_ADC_DMA_GetRegAddr	(	const ADC_TypeDef *	ADCx,
		uint32_t	Register
	)

Function to help to configure DMA transfer from ADC: retrieve the ADC register address from ADC instance and a list of ADC registers intended to be used (most commonly) with DMA transfer.

Note

These ADC registers are data registers: when ADC conversion data is available in ADC data registers, ADC generates a DMA transfer request.

This macro is intended to be used with LL DMA driver, refer to function "LL_DMA_ConfigAddresses()". Example: LL_DMA_ConfigAddresses(DMA1, LL_DMA_CHANNEL_1, LL_ADC_DMA_GetRegAddr(ADC1, LL_ADC_DMA_REG_REGULAR_DATA), (uint32_t)&< array or variable >, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);

For devices with several ADC: in multimode, some devices use a different data register outside of ADC instance scope (common data register). This macro manages this register difference, only ADC instance has to be set as parameter. @rmtoll DR RDATA LL_ADC_DMA_GetRegAddr
CDR RDATA_MST LL_ADC_DMA_GetRegAddr
CDR RDATA_SLV LL_ADC_DMA_GetRegAddr

Parameters

ADCx	ADC instance
Register	This parameter can be one of the following values: LL_ADC_DMA_REG_REGULAR_DATA LL_ADC_DMA_REG_REGULAR_DATA_MULTI (1) (1) Available on devices with several ADC instances.

Return values

ADC	register address

Definition at line 1862 of file stm32f4xx_ll_adc.h.