Functions
__STATIC_INLINE void	LL_DMA_EnableChannel (DMA_TypeDef *DMAx, uint32_t Channel)
	Enable DMA channel. CCR EN LL_DMA_EnableChannel. More...

__STATIC_INLINE void	LL_DMA_DisableChannel (DMA_TypeDef *DMAx, uint32_t Channel)
	Disable DMA channel. CCR EN LL_DMA_DisableChannel. More...

__STATIC_INLINE uint32_t	LL_DMA_IsEnabledChannel (DMA_TypeDef *DMAx, uint32_t Channel)
	Check if DMA channel is enabled or disabled. CCR EN LL_DMA_IsEnabledChannel. More...

__STATIC_INLINE void	LL_DMA_ConfigTransfer (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t Configuration)
	Configure all parameters link to DMA transfer. CCR DIR LL_DMA_ConfigTransfer CCR MEM2MEM LL_DMA_ConfigTransfer CCR CIRC LL_DMA_ConfigTransfer CCR PINC LL_DMA_ConfigTransfer CCR MINC LL_DMA_ConfigTransfer CCR PSIZE LL_DMA_ConfigTransfer CCR MSIZE LL_DMA_ConfigTransfer CCR PL LL_DMA_ConfigTransfer. More...

__STATIC_INLINE void	LL_DMA_SetDataTransferDirection (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t Direction)
	Set Data transfer direction (read from peripheral or from memory). CCR DIR LL_DMA_SetDataTransferDirection CCR MEM2MEM LL_DMA_SetDataTransferDirection. More...

__STATIC_INLINE uint32_t	LL_DMA_GetDataTransferDirection (DMA_TypeDef *DMAx, uint32_t Channel)
	Get Data transfer direction (read from peripheral or from memory). CCR DIR LL_DMA_GetDataTransferDirection CCR MEM2MEM LL_DMA_GetDataTransferDirection. More...

__STATIC_INLINE void	LL_DMA_SetMode (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t Mode)
	Set DMA mode circular or normal. More...

__STATIC_INLINE uint32_t	LL_DMA_GetMode (DMA_TypeDef *DMAx, uint32_t Channel)
	Get DMA mode circular or normal. CCR CIRC LL_DMA_GetMode. More...

__STATIC_INLINE void	LL_DMA_SetPeriphIncMode (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t PeriphOrM2MSrcIncMode)
	Set Peripheral increment mode. CCR PINC LL_DMA_SetPeriphIncMode. More...

__STATIC_INLINE uint32_t	LL_DMA_GetPeriphIncMode (DMA_TypeDef *DMAx, uint32_t Channel)
	Get Peripheral increment mode. CCR PINC LL_DMA_GetPeriphIncMode. More...

__STATIC_INLINE void	LL_DMA_SetMemoryIncMode (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t MemoryOrM2MDstIncMode)
	Set Memory increment mode. CCR MINC LL_DMA_SetMemoryIncMode. More...

__STATIC_INLINE uint32_t	LL_DMA_GetMemoryIncMode (DMA_TypeDef *DMAx, uint32_t Channel)
	Get Memory increment mode. CCR MINC LL_DMA_GetMemoryIncMode. More...

__STATIC_INLINE void	LL_DMA_SetPeriphSize (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t PeriphOrM2MSrcDataSize)
	Set Peripheral size. CCR PSIZE LL_DMA_SetPeriphSize. More...

__STATIC_INLINE uint32_t	LL_DMA_GetPeriphSize (DMA_TypeDef *DMAx, uint32_t Channel)
	Get Peripheral size. CCR PSIZE LL_DMA_GetPeriphSize. More...

__STATIC_INLINE void	LL_DMA_SetMemorySize (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t MemoryOrM2MDstDataSize)
	Set Memory size. CCR MSIZE LL_DMA_SetMemorySize. More...

__STATIC_INLINE uint32_t	LL_DMA_GetMemorySize (DMA_TypeDef *DMAx, uint32_t Channel)
	Get Memory size. CCR MSIZE LL_DMA_GetMemorySize. More...

__STATIC_INLINE void	LL_DMA_SetChannelPriorityLevel (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t Priority)
	Set Channel priority level. CCR PL LL_DMA_SetChannelPriorityLevel. More...

__STATIC_INLINE uint32_t	LL_DMA_GetChannelPriorityLevel (DMA_TypeDef *DMAx, uint32_t Channel)
	Get Channel priority level. CCR PL LL_DMA_GetChannelPriorityLevel. More...

__STATIC_INLINE void	LL_DMA_SetDataLength (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t NbData)
	Set Number of data to transfer. More...

__STATIC_INLINE uint32_t	LL_DMA_GetDataLength (DMA_TypeDef *DMAx, uint32_t Channel)
	Get Number of data to transfer. More...

__STATIC_INLINE void	LL_DMA_ConfigAddresses (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t SrcAddress, uint32_t DstAddress, uint32_t Direction)
	Configure the Source and Destination addresses. More...

__STATIC_INLINE void	LL_DMA_SetMemoryAddress (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t MemoryAddress)
	Set the Memory address. More...

__STATIC_INLINE void	LL_DMA_SetPeriphAddress (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t PeriphAddress)
	Set the Peripheral address. More...

__STATIC_INLINE uint32_t	LL_DMA_GetMemoryAddress (DMA_TypeDef *DMAx, uint32_t Channel)
	Get Memory address. More...

__STATIC_INLINE uint32_t	LL_DMA_GetPeriphAddress (DMA_TypeDef *DMAx, uint32_t Channel)
	Get Peripheral address. More...

__STATIC_INLINE void	LL_DMA_SetM2MSrcAddress (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t MemoryAddress)
	Set the Memory to Memory Source address. More...

__STATIC_INLINE void	LL_DMA_SetM2MDstAddress (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t MemoryAddress)
	Set the Memory to Memory Destination address. More...

__STATIC_INLINE uint32_t	LL_DMA_GetM2MSrcAddress (DMA_TypeDef *DMAx, uint32_t Channel)
	Get the Memory to Memory Source address. More...

__STATIC_INLINE uint32_t	LL_DMA_GetM2MDstAddress (DMA_TypeDef *DMAx, uint32_t Channel)
	Get the Memory to Memory Destination address. More...

__STATIC_INLINE void	LL_DMA_SetPeriphRequest (DMA_TypeDef *DMAx, uint32_t Channel, uint32_t Request)
	Set DMA request for DMA Channels on DMAMUX Channel x. More...

__STATIC_INLINE uint32_t	LL_DMA_GetPeriphRequest (DMA_TypeDef *DMAx, uint32_t Channel)
	Get DMA request for DMA Channels on DMAMUX Channel x. More...

Detailed Description

Function Documentation

◆ LL_DMA_ConfigAddresses()

__STATIC_INLINE void LL_DMA_ConfigAddresses	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	SrcAddress,
		uint32_t	DstAddress,
		uint32_t	Direction
	)

Configure the Source and Destination addresses.

Note: This API must not be called when the DMA channel is enabled.; Each IP using DMA provides an API to get directly the register adress (LL_PPP_DMA_GetRegAddr). CPAR PA LL_DMA_ConfigAddresses
CMAR MA LL_DMA_ConfigAddresses

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
SrcAddress	Between Min_Data = 0 and Max_Data = 0xFFFFFFFF
DstAddress	Between Min_Data = 0 and Max_Data = 0xFFFFFFFF
Direction	This parameter can be one of the following values: LL_DMA_DIRECTION_PERIPH_TO_MEMORY LL_DMA_DIRECTION_MEMORY_TO_PERIPH LL_DMA_DIRECTION_MEMORY_TO_MEMORY

Return values

None

Definition at line 1054 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   /* Direction Memory to Periph */
   if (Direction == LL_DMA_DIRECTION_MEMORY_TO_PERIPH)
   {
     WRITE_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CMAR, SrcAddress);
     WRITE_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CPAR, DstAddress);
   }
   /* Direction Periph to Memory and Memory to Memory */
   else
   {
     WRITE_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CPAR, SrcAddress);
     WRITE_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CMAR, DstAddress);
   }
 }

◆ LL_DMA_ConfigTransfer()

__STATIC_INLINE void LL_DMA_ConfigTransfer	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	Configuration
	)

Configure all parameters link to DMA transfer. CCR DIR LL_DMA_ConfigTransfer
CCR MEM2MEM LL_DMA_ConfigTransfer
CCR CIRC LL_DMA_ConfigTransfer
CCR PINC LL_DMA_ConfigTransfer
CCR MINC LL_DMA_ConfigTransfer
CCR PSIZE LL_DMA_ConfigTransfer
CCR MSIZE LL_DMA_ConfigTransfer
CCR PL LL_DMA_ConfigTransfer.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
Configuration	This parameter must be a combination of all the following values: LL_DMA_DIRECTION_PERIPH_TO_MEMORY or LL_DMA_DIRECTION_MEMORY_TO_PERIPH or LL_DMA_DIRECTION_MEMORY_TO_MEMORY LL_DMA_MODE_NORMAL or LL_DMA_MODE_CIRCULAR LL_DMA_PERIPH_INCREMENT or LL_DMA_PERIPH_NOINCREMENT LL_DMA_MEMORY_INCREMENT or LL_DMA_MEMORY_NOINCREMENT LL_DMA_PDATAALIGN_BYTE or LL_DMA_PDATAALIGN_HALFWORD or LL_DMA_PDATAALIGN_WORD LL_DMA_MDATAALIGN_BYTE or LL_DMA_MDATAALIGN_HALFWORD or LL_DMA_MDATAALIGN_WORD LL_DMA_PRIORITY_LOW or LL_DMA_PRIORITY_MEDIUM or LL_DMA_PRIORITY_HIGH or LL_DMA_PRIORITY_VERYHIGH

Return values

None

Definition at line 633 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   MODIFY_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
              DMA_CCR_DIR | DMA_CCR_MEM2MEM | DMA_CCR_CIRC | DMA_CCR_PINC | DMA_CCR_MINC | DMA_CCR_PSIZE | DMA_CCR_MSIZE | DMA_CCR_PL,
              Configuration);
 }

◆ LL_DMA_DisableChannel()

__STATIC_INLINE void LL_DMA_DisableChannel	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Disable DMA channel. CCR EN LL_DMA_DisableChannel.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

None

Definition at line 577 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   CLEAR_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR, DMA_CCR_EN);
 }

◆ LL_DMA_EnableChannel()

__STATIC_INLINE void LL_DMA_EnableChannel	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Enable DMA channel. CCR EN LL_DMA_EnableChannel.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

None

Definition at line 557 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   SET_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR, DMA_CCR_EN);
 }

◆ LL_DMA_GetChannelPriorityLevel()

__STATIC_INLINE uint32_t LL_DMA_GetChannelPriorityLevel	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get Channel priority level. CCR PL LL_DMA_GetChannelPriorityLevel.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Returned

value can be one of the following values:

LL_DMA_PRIORITY_LOW
LL_DMA_PRIORITY_MEDIUM
LL_DMA_PRIORITY_HIGH
LL_DMA_PRIORITY_VERYHIGH

Definition at line 977 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
                    DMA_CCR_PL));
 }

◆ LL_DMA_GetDataLength()

__STATIC_INLINE uint32_t LL_DMA_GetDataLength	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get Number of data to transfer.

Note: Once the channel is enabled, the return value indicate the remaining bytes to be transmitted. CNDTR NDT LL_DMA_GetDataLength

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Between Min_Data = 0 and Max_Data = 0xFFFFFFFF

Definition at line 1024 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CNDTR,
                    DMA_CNDTR_NDT));
 }

◆ LL_DMA_GetDataTransferDirection()

__STATIC_INLINE uint32_t LL_DMA_GetDataTransferDirection	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get Data transfer direction (read from peripheral or from memory). CCR DIR LL_DMA_GetDataTransferDirection
CCR MEM2MEM LL_DMA_GetDataTransferDirection.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Returned

value can be one of the following values:

LL_DMA_DIRECTION_PERIPH_TO_MEMORY
LL_DMA_DIRECTION_MEMORY_TO_PERIPH
LL_DMA_DIRECTION_MEMORY_TO_MEMORY

Definition at line 685 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
                    DMA_CCR_DIR | DMA_CCR_MEM2MEM));
 }

◆ LL_DMA_GetM2MDstAddress()

__STATIC_INLINE uint32_t LL_DMA_GetM2MDstAddress	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get the Memory to Memory Destination address.

Note: Interface used for direction LL_DMA_DIRECTION_MEMORY_TO_MEMORY only. CMAR MA LL_DMA_GetM2MDstAddress

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Between Min_Data = 0 and Max_Data = 0xFFFFFFFF

Definition at line 1242 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CMAR));
 }

◆ LL_DMA_GetM2MSrcAddress()

__STATIC_INLINE uint32_t LL_DMA_GetM2MSrcAddress	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get the Memory to Memory Source address.

Note: Interface used for direction LL_DMA_DIRECTION_MEMORY_TO_MEMORY only. CPAR PA LL_DMA_GetM2MSrcAddress

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Between Min_Data = 0 and Max_Data = 0xFFFFFFFF

Definition at line 1221 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CPAR));
 }

◆ LL_DMA_GetMemoryAddress()

__STATIC_INLINE uint32_t LL_DMA_GetMemoryAddress	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get Memory address.

Note: Interface used for direction LL_DMA_DIRECTION_PERIPH_TO_MEMORY or LL_DMA_DIRECTION_MEMORY_TO_PERIPH only. CMAR MA LL_DMA_GetMemoryAddress

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Between Min_Data = 0 and Max_Data = 0xFFFFFFFF

Definition at line 1133 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CMAR));
 }

◆ LL_DMA_GetMemoryIncMode()

__STATIC_INLINE uint32_t LL_DMA_GetMemoryIncMode	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get Memory increment mode. CCR MINC LL_DMA_GetMemoryIncMode.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Returned

value can be one of the following values:

LL_DMA_MEMORY_INCREMENT
LL_DMA_MEMORY_NOINCREMENT

Definition at line 828 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
                    DMA_CCR_MINC));
 }

◆ LL_DMA_GetMemorySize()

__STATIC_INLINE uint32_t LL_DMA_GetMemorySize	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get Memory size. CCR MSIZE LL_DMA_GetMemorySize.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Returned

value can be one of the following values:

LL_DMA_MDATAALIGN_BYTE
LL_DMA_MDATAALIGN_HALFWORD
LL_DMA_MDATAALIGN_WORD

Definition at line 926 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
                    DMA_CCR_MSIZE));
 }

◆ LL_DMA_GetMode()

__STATIC_INLINE uint32_t LL_DMA_GetMode	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get DMA mode circular or normal. CCR CIRC LL_DMA_GetMode.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Returned

value can be one of the following values:

LL_DMA_MODE_NORMAL
LL_DMA_MODE_CIRCULAR

Definition at line 734 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
                    DMA_CCR_CIRC));
 }

◆ LL_DMA_GetPeriphAddress()

__STATIC_INLINE uint32_t LL_DMA_GetPeriphAddress	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get Peripheral address.

Note: Interface used for direction LL_DMA_DIRECTION_PERIPH_TO_MEMORY or LL_DMA_DIRECTION_MEMORY_TO_PERIPH only. CPAR PA LL_DMA_GetPeriphAddress

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Between Min_Data = 0 and Max_Data = 0xFFFFFFFF

Definition at line 1154 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CPAR));
 }

◆ LL_DMA_GetPeriphIncMode()

__STATIC_INLINE uint32_t LL_DMA_GetPeriphIncMode	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get Peripheral increment mode. CCR PINC LL_DMA_GetPeriphIncMode.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Returned

value can be one of the following values:

LL_DMA_PERIPH_INCREMENT
LL_DMA_PERIPH_NOINCREMENT

Definition at line 781 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
                    DMA_CCR_PINC));
 }

◆ LL_DMA_GetPeriphRequest()

__STATIC_INLINE uint32_t LL_DMA_GetPeriphRequest	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get DMA request for DMA Channels on DMAMUX Channel x.

Get DMA request for DMA instance on Channel x. CSELR C1S LL_DMA_GetPeriphRequest
CSELR C2S LL_DMA_GetPeriphRequest
CSELR C3S LL_DMA_GetPeriphRequest
CSELR C4S LL_DMA_GetPeriphRequest
CSELR C5S LL_DMA_GetPeriphRequest
CSELR C6S LL_DMA_GetPeriphRequest
CSELR C7S LL_DMA_GetPeriphRequest.

Note: DMAMUX channel 0 to 6 are mapped to DMA1 channel 1 to 7. DMAMUX channel 7 to 13 are mapped to DMA2 channel 1 to 7. CxCR DMAREQ_ID LL_DMA_GetPeriphRequest

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Returned

value can be one of the following values:

LL_DMAMUX_REQ_MEM2MEM
LL_DMAMUX_REQ_GENERATOR0
LL_DMAMUX_REQ_GENERATOR1
LL_DMAMUX_REQ_GENERATOR2
LL_DMAMUX_REQ_GENERATOR3
LL_DMAMUX_REQ_ADC1
LL_DMAMUX_REQ_DAC1_CH1
LL_DMAMUX_REQ_DAC1_CH2
LL_DMAMUX_REQ_TIM6_UP
LL_DMAMUX_REQ_TIM7_UP
LL_DMAMUX_REQ_SPI1_RX
LL_DMAMUX_REQ_SPI1_TX
LL_DMAMUX_REQ_SPI2_RX
LL_DMAMUX_REQ_SPI2_TX
LL_DMAMUX_REQ_SPI3_RX
LL_DMAMUX_REQ_SPI3_TX
LL_DMAMUX_REQ_I2C1_RX
LL_DMAMUX_REQ_I2C1_TX
LL_DMAMUX_REQ_I2C2_RX
LL_DMAMUX_REQ_I2C2_TX
LL_DMAMUX_REQ_I2C3_RX
LL_DMAMUX_REQ_I2C3_TX
LL_DMAMUX_REQ_I2C4_RX
LL_DMAMUX_REQ_I2C4_TX
LL_DMAMUX_REQ_USART1_RX
LL_DMAMUX_REQ_USART1_TX
LL_DMAMUX_REQ_USART2_RX
LL_DMAMUX_REQ_USART2_TX
LL_DMAMUX_REQ_USART3_RX
LL_DMAMUX_REQ_USART3_TX
LL_DMAMUX_REQ_UART4_RX
LL_DMAMUX_REQ_UART4_TX
LL_DMAMUX_REQ_UART5_RX
LL_DMAMUX_REQ_UART5_TX
LL_DMAMUX_REQ_LPUART1_RX
LL_DMAMUX_REQ_LPUART1_TX
LL_DMAMUX_REQ_SAI1_A
LL_DMAMUX_REQ_SAI1_B
LL_DMAMUX_REQ_SAI2_A
LL_DMAMUX_REQ_SAI2_B
LL_DMAMUX_REQ_OSPI1
LL_DMAMUX_REQ_OSPI2
LL_DMAMUX_REQ_TIM1_CH1
LL_DMAMUX_REQ_TIM1_CH2
LL_DMAMUX_REQ_TIM1_CH3
LL_DMAMUX_REQ_TIM1_CH4
LL_DMAMUX_REQ_TIM1_UP
LL_DMAMUX_REQ_TIM1_TRIG
LL_DMAMUX_REQ_TIM1_COM
LL_DMAMUX_REQ_TIM8_CH1
LL_DMAMUX_REQ_TIM8_CH2
LL_DMAMUX_REQ_TIM8_CH3
LL_DMAMUX_REQ_TIM8_CH4
LL_DMAMUX_REQ_TIM8_UP
LL_DMAMUX_REQ_TIM8_TRIG
LL_DMAMUX_REQ_TIM8_COM
LL_DMAMUX_REQ_TIM2_CH1
LL_DMAMUX_REQ_TIM2_CH2
LL_DMAMUX_REQ_TIM2_CH3
LL_DMAMUX_REQ_TIM2_CH4
LL_DMAMUX_REQ_TIM2_UP
LL_DMAMUX_REQ_TIM3_CH1
LL_DMAMUX_REQ_TIM3_CH2
LL_DMAMUX_REQ_TIM3_CH3
LL_DMAMUX_REQ_TIM3_CH4
LL_DMAMUX_REQ_TIM3_UP
LL_DMAMUX_REQ_TIM3_TRIG
LL_DMAMUX_REQ_TIM4_CH1
LL_DMAMUX_REQ_TIM4_CH2
LL_DMAMUX_REQ_TIM4_CH3
LL_DMAMUX_REQ_TIM4_CH4
LL_DMAMUX_REQ_TIM4_UP
LL_DMAMUX_REQ_TIM5_CH1
LL_DMAMUX_REQ_TIM5_CH2
LL_DMAMUX_REQ_TIM5_CH3
LL_DMAMUX_REQ_TIM5_CH4
LL_DMAMUX_REQ_TIM5_UP
LL_DMAMUX_REQ_TIM5_TRIG
LL_DMAMUX_REQ_TIM15_CH1
LL_DMAMUX_REQ_TIM15_UP
LL_DMAMUX_REQ_TIM15_TRIG
LL_DMAMUX_REQ_TIM15_COM
LL_DMAMUX_REQ_TIM16_CH1
LL_DMAMUX_REQ_TIM16_UP
LL_DMAMUX_REQ_TIM17_CH1
LL_DMAMUX_REQ_TIM17_UP
LL_DMAMUX_REQ_DFSDM1_FLT0
LL_DMAMUX_REQ_DFSDM1_FLT1
LL_DMAMUX_REQ_DFSDM1_FLT2
LL_DMAMUX_REQ_DFSDM1_FLT3
LL_DMAMUX_REQ_DCMI
LL_DMAMUX_REQ_AES_IN
LL_DMAMUX_REQ_AES_OUT
LL_DMAMUX_REQ_HASH_IN

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Returned

value can be one of the following values:

LL_DMA_REQUEST_0
LL_DMA_REQUEST_1
LL_DMA_REQUEST_2
LL_DMA_REQUEST_3
LL_DMA_REQUEST_4
LL_DMA_REQUEST_5
LL_DMA_REQUEST_6
LL_DMA_REQUEST_7

Definition at line 1476 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dmamux_ccr_offset = ((((uint32_t)DMAx ^ (uint32_t)DMA1) >> 10U) * 7U);
   return (READ_BIT((DMAMUX1_Channel0 + Channel + dmamux_ccr_offset)->CCR, DMAMUX_CxCR_DMAREQ_ID));
 }

◆ LL_DMA_GetPeriphSize()

__STATIC_INLINE uint32_t LL_DMA_GetPeriphSize	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Get Peripheral size. CCR PSIZE LL_DMA_GetPeriphSize.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

Returned

value can be one of the following values:

LL_DMA_PDATAALIGN_BYTE
LL_DMA_PDATAALIGN_HALFWORD
LL_DMA_PDATAALIGN_WORD

Definition at line 877 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return (READ_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
                    DMA_CCR_PSIZE));
 }

◆ LL_DMA_IsEnabledChannel()

__STATIC_INLINE uint32_t LL_DMA_IsEnabledChannel	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel
	)

Check if DMA channel is enabled or disabled. CCR EN LL_DMA_IsEnabledChannel.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7

Return values

State of bit (1 or 0).

Definition at line 597 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   return ((READ_BIT(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
                   DMA_CCR_EN) == (DMA_CCR_EN)) ? 1UL : 0UL);
 }

◆ LL_DMA_SetChannelPriorityLevel()

__STATIC_INLINE void LL_DMA_SetChannelPriorityLevel	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	Priority
	)

Set Channel priority level. CCR PL LL_DMA_SetChannelPriorityLevel.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
Priority	This parameter can be one of the following values: LL_DMA_PRIORITY_LOW LL_DMA_PRIORITY_MEDIUM LL_DMA_PRIORITY_HIGH LL_DMA_PRIORITY_VERYHIGH

Return values

None

Definition at line 952 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   MODIFY_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR, DMA_CCR_PL,
              Priority);
 }

◆ LL_DMA_SetDataLength()

__STATIC_INLINE void LL_DMA_SetDataLength	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	NbData
	)

Set Number of data to transfer.

Note: This action has no effect if channel is enabled. CNDTR NDT LL_DMA_SetDataLength

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
NbData	Between Min_Data = 0 and Max_Data = 0x0000FFFF

Return values

None

Definition at line 1001 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   MODIFY_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CNDTR,
              DMA_CNDTR_NDT, NbData);
 }

◆ LL_DMA_SetDataTransferDirection()

__STATIC_INLINE void LL_DMA_SetDataTransferDirection	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	Direction
	)

Set Data transfer direction (read from peripheral or from memory). CCR DIR LL_DMA_SetDataTransferDirection
CCR MEM2MEM LL_DMA_SetDataTransferDirection.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
Direction	This parameter can be one of the following values: LL_DMA_DIRECTION_PERIPH_TO_MEMORY LL_DMA_DIRECTION_MEMORY_TO_PERIPH LL_DMA_DIRECTION_MEMORY_TO_MEMORY

Return values

None

Definition at line 660 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   MODIFY_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR,
              DMA_CCR_DIR | DMA_CCR_MEM2MEM, Direction);
 }

◆ LL_DMA_SetM2MDstAddress()

__STATIC_INLINE void LL_DMA_SetM2MDstAddress	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	MemoryAddress
	)

Set the Memory to Memory Destination address.

Note: Interface used for direction LL_DMA_DIRECTION_MEMORY_TO_MEMORY only.; This API must not be called when the DMA channel is enabled. CMAR MA LL_DMA_SetM2MDstAddress

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
MemoryAddress	Between Min_Data = 0 and Max_Data = 0xFFFFFFFF

Return values

None

Definition at line 1200 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   WRITE_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CMAR, MemoryAddress);
 }

◆ LL_DMA_SetM2MSrcAddress()

__STATIC_INLINE void LL_DMA_SetM2MSrcAddress	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	MemoryAddress
	)

Set the Memory to Memory Source address.

Note: Interface used for direction LL_DMA_DIRECTION_MEMORY_TO_MEMORY only.; This API must not be called when the DMA channel is enabled. CPAR PA LL_DMA_SetM2MSrcAddress

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
MemoryAddress	Between Min_Data = 0 and Max_Data = 0xFFFFFFFF

Return values

None

Definition at line 1177 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   WRITE_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CPAR, MemoryAddress);
 }

◆ LL_DMA_SetMemoryAddress()

__STATIC_INLINE void LL_DMA_SetMemoryAddress	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	MemoryAddress
	)

Set the Memory address.

Note: Interface used for direction LL_DMA_DIRECTION_PERIPH_TO_MEMORY or LL_DMA_DIRECTION_MEMORY_TO_PERIPH only.; This API must not be called when the DMA channel is enabled. CMAR MA LL_DMA_SetMemoryAddress

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
MemoryAddress	Between Min_Data = 0 and Max_Data = 0xFFFFFFFF

Return values

None

Definition at line 1089 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   WRITE_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CMAR, MemoryAddress);
 }

◆ LL_DMA_SetMemoryIncMode()

__STATIC_INLINE void LL_DMA_SetMemoryIncMode	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	MemoryOrM2MDstIncMode
	)

Set Memory increment mode. CCR MINC LL_DMA_SetMemoryIncMode.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
MemoryOrM2MDstIncMode	This parameter can be one of the following values: LL_DMA_MEMORY_INCREMENT LL_DMA_MEMORY_NOINCREMENT

Return values

None

Definition at line 805 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   MODIFY_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR, DMA_CCR_MINC,
              MemoryOrM2MDstIncMode);
 }

◆ LL_DMA_SetMemorySize()

__STATIC_INLINE void LL_DMA_SetMemorySize	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	MemoryOrM2MDstDataSize
	)

Set Memory size. CCR MSIZE LL_DMA_SetMemorySize.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
MemoryOrM2MDstDataSize	This parameter can be one of the following values: LL_DMA_MDATAALIGN_BYTE LL_DMA_MDATAALIGN_HALFWORD LL_DMA_MDATAALIGN_WORD

Return values

None

Definition at line 902 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   MODIFY_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR, DMA_CCR_MSIZE,
              MemoryOrM2MDstDataSize);
 }

◆ LL_DMA_SetMode()

__STATIC_INLINE void LL_DMA_SetMode	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	Mode
	)

Set DMA mode circular or normal.

Note: The circular buffer mode cannot be used if the memory-to-memory data transfer is configured on the selected Channel. CCR CIRC LL_DMA_SetMode

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
Mode	This parameter can be one of the following values: LL_DMA_MODE_NORMAL LL_DMA_MODE_CIRCULAR

Return values

None

Definition at line 711 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   MODIFY_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR, DMA_CCR_CIRC,
              Mode);
 }

◆ LL_DMA_SetPeriphAddress()

__STATIC_INLINE void LL_DMA_SetPeriphAddress	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	PeriphAddress
	)

Set the Peripheral address.

Note: Interface used for direction LL_DMA_DIRECTION_PERIPH_TO_MEMORY or LL_DMA_DIRECTION_MEMORY_TO_PERIPH only.; This API must not be called when the DMA channel is enabled. CPAR PA LL_DMA_SetPeriphAddress

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
PeriphAddress	Between Min_Data = 0 and Max_Data = 0xFFFFFFFF

Return values

None

Definition at line 1112 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   WRITE_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CPAR, PeriphAddress);
 }

◆ LL_DMA_SetPeriphIncMode()

__STATIC_INLINE void LL_DMA_SetPeriphIncMode	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	PeriphOrM2MSrcIncMode
	)

Set Peripheral increment mode. CCR PINC LL_DMA_SetPeriphIncMode.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
PeriphOrM2MSrcIncMode	This parameter can be one of the following values: LL_DMA_PERIPH_INCREMENT LL_DMA_PERIPH_NOINCREMENT

Return values

None

Definition at line 758 of file stm32l4xx_ll_dma.h.

 {
     uint32_t dma_base_addr = (uint32_t)DMAx;
     MODIFY_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR, DMA_CCR_PINC,
              PeriphOrM2MSrcIncMode);
 }

◆ LL_DMA_SetPeriphRequest()

__STATIC_INLINE void LL_DMA_SetPeriphRequest	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	PeriphRequest
	)

Set DMA request for DMA Channels on DMAMUX Channel x.

Set DMA request for DMA instance on Channel x.

Note: DMAMUX channel 0 to 6 are mapped to DMA1 channel 1 to 7. DMAMUX channel 7 to 13 are mapped to DMA2 channel 1 to 7. CxCR DMAREQ_ID LL_DMA_SetPeriphRequest

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
Request	This parameter can be one of the following values: LL_DMAMUX_REQ_MEM2MEM LL_DMAMUX_REQ_GENERATOR0 LL_DMAMUX_REQ_GENERATOR1 LL_DMAMUX_REQ_GENERATOR2 LL_DMAMUX_REQ_GENERATOR3 LL_DMAMUX_REQ_ADC1 LL_DMAMUX_REQ_DAC1_CH1 LL_DMAMUX_REQ_DAC1_CH2 LL_DMAMUX_REQ_TIM6_UP LL_DMAMUX_REQ_TIM7_UP LL_DMAMUX_REQ_SPI1_RX LL_DMAMUX_REQ_SPI1_TX LL_DMAMUX_REQ_SPI2_RX LL_DMAMUX_REQ_SPI2_TX LL_DMAMUX_REQ_SPI3_RX LL_DMAMUX_REQ_SPI3_TX LL_DMAMUX_REQ_I2C1_RX LL_DMAMUX_REQ_I2C1_TX LL_DMAMUX_REQ_I2C2_RX LL_DMAMUX_REQ_I2C2_TX LL_DMAMUX_REQ_I2C3_RX LL_DMAMUX_REQ_I2C3_TX LL_DMAMUX_REQ_I2C4_RX LL_DMAMUX_REQ_I2C4_TX LL_DMAMUX_REQ_USART1_RX LL_DMAMUX_REQ_USART1_TX LL_DMAMUX_REQ_USART2_RX LL_DMAMUX_REQ_USART2_TX LL_DMAMUX_REQ_USART3_RX LL_DMAMUX_REQ_USART3_TX LL_DMAMUX_REQ_UART4_RX LL_DMAMUX_REQ_UART4_TX LL_DMAMUX_REQ_UART5_RX LL_DMAMUX_REQ_UART5_TX LL_DMAMUX_REQ_LPUART1_RX LL_DMAMUX_REQ_LPUART1_TX LL_DMAMUX_REQ_SAI1_A LL_DMAMUX_REQ_SAI1_B LL_DMAMUX_REQ_SAI2_A LL_DMAMUX_REQ_SAI2_B LL_DMAMUX_REQ_OSPI1 LL_DMAMUX_REQ_OSPI2 LL_DMAMUX_REQ_TIM1_CH1 LL_DMAMUX_REQ_TIM1_CH2 LL_DMAMUX_REQ_TIM1_CH3 LL_DMAMUX_REQ_TIM1_CH4 LL_DMAMUX_REQ_TIM1_UP LL_DMAMUX_REQ_TIM1_TRIG LL_DMAMUX_REQ_TIM1_COM LL_DMAMUX_REQ_TIM8_CH1 LL_DMAMUX_REQ_TIM8_CH2 LL_DMAMUX_REQ_TIM8_CH3 LL_DMAMUX_REQ_TIM8_CH4 LL_DMAMUX_REQ_TIM8_UP LL_DMAMUX_REQ_TIM8_TRIG LL_DMAMUX_REQ_TIM8_COM LL_DMAMUX_REQ_TIM2_CH1 LL_DMAMUX_REQ_TIM2_CH2 LL_DMAMUX_REQ_TIM2_CH3 LL_DMAMUX_REQ_TIM2_CH4 LL_DMAMUX_REQ_TIM2_UP LL_DMAMUX_REQ_TIM3_CH1 LL_DMAMUX_REQ_TIM3_CH2 LL_DMAMUX_REQ_TIM3_CH3 LL_DMAMUX_REQ_TIM3_CH4 LL_DMAMUX_REQ_TIM3_UP LL_DMAMUX_REQ_TIM3_TRIG LL_DMAMUX_REQ_TIM4_CH1 LL_DMAMUX_REQ_TIM4_CH2 LL_DMAMUX_REQ_TIM4_CH3 LL_DMAMUX_REQ_TIM4_CH4 LL_DMAMUX_REQ_TIM4_UP LL_DMAMUX_REQ_TIM5_CH1 LL_DMAMUX_REQ_TIM5_CH2 LL_DMAMUX_REQ_TIM5_CH3 LL_DMAMUX_REQ_TIM5_CH4 LL_DMAMUX_REQ_TIM5_UP LL_DMAMUX_REQ_TIM5_TRIG LL_DMAMUX_REQ_TIM15_CH1 LL_DMAMUX_REQ_TIM15_UP LL_DMAMUX_REQ_TIM15_TRIG LL_DMAMUX_REQ_TIM15_COM LL_DMAMUX_REQ_TIM16_CH1 LL_DMAMUX_REQ_TIM16_UP LL_DMAMUX_REQ_TIM17_CH1 LL_DMAMUX_REQ_TIM17_UP LL_DMAMUX_REQ_DFSDM1_FLT0 LL_DMAMUX_REQ_DFSDM1_FLT1 LL_DMAMUX_REQ_DFSDM1_FLT2 LL_DMAMUX_REQ_DFSDM1_FLT3 LL_DMAMUX_REQ_DCMI LL_DMAMUX_REQ_AES_IN LL_DMAMUX_REQ_AES_OUT LL_DMAMUX_REQ_HASH_IN

Return values

None

Note: Please refer to Reference Manual to get the available mapping of Request value link to Channel Selection. CSELR C1S LL_DMA_SetPeriphRequest
CSELR C2S LL_DMA_SetPeriphRequest
CSELR C3S LL_DMA_SetPeriphRequest
CSELR C4S LL_DMA_SetPeriphRequest
CSELR C5S LL_DMA_SetPeriphRequest
CSELR C6S LL_DMA_SetPeriphRequest
CSELR C7S LL_DMA_SetPeriphRequest

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
PeriphRequest	This parameter can be one of the following values: LL_DMA_REQUEST_0 LL_DMA_REQUEST_1 LL_DMA_REQUEST_2 LL_DMA_REQUEST_3 LL_DMA_REQUEST_4 LL_DMA_REQUEST_5 LL_DMA_REQUEST_6 LL_DMA_REQUEST_7

Return values

None

Definition at line 1360 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dmamux_ccr_offset = ((((uint32_t)DMAx ^ (uint32_t)DMA1) >> 10U) * 7U);
   MODIFY_REG((DMAMUX1_Channel0 + Channel + dmamux_ccr_offset)->CCR, DMAMUX_CxCR_DMAREQ_ID, Request);
 }

◆ LL_DMA_SetPeriphSize()

__STATIC_INLINE void LL_DMA_SetPeriphSize	(	DMA_TypeDef *	DMAx,
		uint32_t	Channel,
		uint32_t	PeriphOrM2MSrcDataSize
	)

Set Peripheral size. CCR PSIZE LL_DMA_SetPeriphSize.

Parameters

DMAx	DMAx Instance
Channel	This parameter can be one of the following values: LL_DMA_CHANNEL_1 LL_DMA_CHANNEL_2 LL_DMA_CHANNEL_3 LL_DMA_CHANNEL_4 LL_DMA_CHANNEL_5 LL_DMA_CHANNEL_6 LL_DMA_CHANNEL_7
PeriphOrM2MSrcDataSize	This parameter can be one of the following values: LL_DMA_PDATAALIGN_BYTE LL_DMA_PDATAALIGN_HALFWORD LL_DMA_PDATAALIGN_WORD

Return values

None

Definition at line 853 of file stm32l4xx_ll_dma.h.

 {
   uint32_t dma_base_addr = (uint32_t)DMAx;
   MODIFY_REG(((DMA_Channel_TypeDef *)(dma_base_addr + CHANNEL_OFFSET_TAB[Channel]))->CCR, DMA_CCR_PSIZE, 
              PeriphOrM2MSrcDataSize);
 }

Functions

Detailed Description

Function Documentation

◆ LL_DMA_ConfigAddresses()

◆ LL_DMA_ConfigTransfer()

◆ LL_DMA_DisableChannel()

◆ LL_DMA_EnableChannel()

◆ LL_DMA_GetChannelPriorityLevel()

◆ LL_DMA_GetDataLength()

◆ LL_DMA_GetDataTransferDirection()

◆ LL_DMA_GetM2MDstAddress()

◆ LL_DMA_GetM2MSrcAddress()

◆ LL_DMA_GetMemoryAddress()

◆ LL_DMA_GetMemoryIncMode()

◆ LL_DMA_GetMemorySize()

◆ LL_DMA_GetMode()

◆ LL_DMA_GetPeriphAddress()

◆ LL_DMA_GetPeriphIncMode()

◆ LL_DMA_GetPeriphRequest()

◆ LL_DMA_GetPeriphSize()

◆ LL_DMA_IsEnabledChannel()

◆ LL_DMA_SetChannelPriorityLevel()

◆ LL_DMA_SetDataLength()

◆ LL_DMA_SetDataTransferDirection()

◆ LL_DMA_SetM2MDstAddress()

◆ LL_DMA_SetM2MSrcAddress()

◆ LL_DMA_SetMemoryAddress()

◆ LL_DMA_SetMemoryIncMode()

◆ LL_DMA_SetMemorySize()

◆ LL_DMA_SetMode()

◆ LL_DMA_SetPeriphAddress()

◆ LL_DMA_SetPeriphIncMode()

◆ LL_DMA_SetPeriphRequest()

◆ LL_DMA_SetPeriphSize()