DMA_Management

Functions
__STATIC_INLINE void	LL_LPUART_EnableDMAReq_RX (USART_TypeDef *LPUARTx)
	Enable DMA Mode for reception CR3 DMAR LL_LPUART_EnableDMAReq_RX. More...
__STATIC_INLINE void	LL_LPUART_DisableDMAReq_RX (USART_TypeDef *LPUARTx)
	Disable DMA Mode for reception CR3 DMAR LL_LPUART_DisableDMAReq_RX. More...
__STATIC_INLINE uint32_t	LL_LPUART_IsEnabledDMAReq_RX (USART_TypeDef *LPUARTx)
	Check if DMA Mode is enabled for reception CR3 DMAR LL_LPUART_IsEnabledDMAReq_RX. More...
__STATIC_INLINE void	LL_LPUART_EnableDMAReq_TX (USART_TypeDef *LPUARTx)
	Enable DMA Mode for transmission CR3 DMAT LL_LPUART_EnableDMAReq_TX. More...
__STATIC_INLINE void	LL_LPUART_DisableDMAReq_TX (USART_TypeDef *LPUARTx)
	Disable DMA Mode for transmission CR3 DMAT LL_LPUART_DisableDMAReq_TX. More...
__STATIC_INLINE uint32_t	LL_LPUART_IsEnabledDMAReq_TX (USART_TypeDef *LPUARTx)
	Check if DMA Mode is enabled for transmission CR3 DMAT LL_LPUART_IsEnabledDMAReq_TX. More...
__STATIC_INLINE void	LL_LPUART_EnableDMADeactOnRxErr (USART_TypeDef *LPUARTx)
	Enable DMA Disabling on Reception Error CR3 DDRE LL_LPUART_EnableDMADeactOnRxErr. More...
__STATIC_INLINE void	LL_LPUART_DisableDMADeactOnRxErr (USART_TypeDef *LPUARTx)
	Disable DMA Disabling on Reception Error CR3 DDRE LL_LPUART_DisableDMADeactOnRxErr. More...
__STATIC_INLINE uint32_t	LL_LPUART_IsEnabledDMADeactOnRxErr (USART_TypeDef *LPUARTx)
	Indicate if DMA Disabling on Reception Error is disabled CR3 DDRE LL_LPUART_IsEnabledDMADeactOnRxErr. More...
__STATIC_INLINE uint32_t	LL_LPUART_DMA_GetRegAddr (USART_TypeDef *LPUARTx, uint32_t Direction)
	Get the LPUART data register address used for DMA transfer RDR RDR LL_LPUART_DMA_GetRegAddr TDR TDR LL_LPUART_DMA_GetRegAddr. More...

Detailed Description

Function Documentation

LL_LPUART_DisableDMADeactOnRxErr()

__STATIC_INLINE void LL_LPUART_DisableDMADeactOnRxErr

(

USART_TypeDef *

LPUARTx

)

Disable DMA Disabling on Reception Error CR3 DDRE LL_LPUART_DisableDMADeactOnRxErr.

Parameters

LPUARTx

LPUART Instance

Return values

None

Definition at line 2685 of file stm32l4xx_ll_lpuart.h.

{
  CLEAR_BIT(LPUARTx->CR3, USART_CR3_DDRE);
}

LL_LPUART_DisableDMAReq_RX()

__STATIC_INLINE void LL_LPUART_DisableDMAReq_RX

(

USART_TypeDef *

LPUARTx

)

Disable DMA Mode for reception CR3 DMAR LL_LPUART_DisableDMAReq_RX.

Parameters

LPUARTx

LPUART Instance

Return values

None

Definition at line 2619 of file stm32l4xx_ll_lpuart.h.

{
  CLEAR_BIT(LPUARTx->CR3, USART_CR3_DMAR);
}

LL_LPUART_DisableDMAReq_TX()

__STATIC_INLINE void LL_LPUART_DisableDMAReq_TX

(

USART_TypeDef *

LPUARTx

)

Disable DMA Mode for transmission CR3 DMAT LL_LPUART_DisableDMAReq_TX.

Parameters

LPUARTx

LPUART Instance

Return values

None

Definition at line 2652 of file stm32l4xx_ll_lpuart.h.

{
  CLEAR_BIT(LPUARTx->CR3, USART_CR3_DMAT);
}

LL_LPUART_DMA_GetRegAddr()

__STATIC_INLINE uint32_t LL_LPUART_DMA_GetRegAddr	(	USART_TypeDef *	LPUARTx,
		uint32_t	Direction
	)

Get the LPUART data register address used for DMA transfer RDR RDR LL_LPUART_DMA_GetRegAddr
TDR TDR LL_LPUART_DMA_GetRegAddr.

Parameters

LPUARTx	LPUART Instance
Direction	This parameter can be one of the following values: LL_LPUART_DMA_REG_DATA_TRANSMIT LL_LPUART_DMA_REG_DATA_RECEIVE

Return values

Address

of data register

Definition at line 2711 of file stm32l4xx_ll_lpuart.h.

{
  register uint32_t data_reg_addr;

  if (Direction == LL_LPUART_DMA_REG_DATA_TRANSMIT)
  {
    /* return address of TDR register */
    data_reg_addr = (uint32_t) &(LPUARTx->TDR);
  }
  else
  {
    /* return address of RDR register */
    data_reg_addr = (uint32_t) &(LPUARTx->RDR);
  }

  return data_reg_addr;
}

LL_LPUART_EnableDMADeactOnRxErr()

__STATIC_INLINE void LL_LPUART_EnableDMADeactOnRxErr

(

USART_TypeDef *

LPUARTx

)

Enable DMA Disabling on Reception Error CR3 DDRE LL_LPUART_EnableDMADeactOnRxErr.

Parameters

LPUARTx

LPUART Instance

Return values

None

Definition at line 2674 of file stm32l4xx_ll_lpuart.h.

{
  SET_BIT(LPUARTx->CR3, USART_CR3_DDRE);
}

LL_LPUART_EnableDMAReq_RX()

__STATIC_INLINE void LL_LPUART_EnableDMAReq_RX

(

USART_TypeDef *

LPUARTx

)

Enable DMA Mode for reception CR3 DMAR LL_LPUART_EnableDMAReq_RX.

Parameters

LPUARTx

LPUART Instance

Return values

None

Definition at line 2608 of file stm32l4xx_ll_lpuart.h.

{
  SET_BIT(LPUARTx->CR3, USART_CR3_DMAR);
}

LL_LPUART_EnableDMAReq_TX()

__STATIC_INLINE void LL_LPUART_EnableDMAReq_TX

(

USART_TypeDef *

LPUARTx

)

Enable DMA Mode for transmission CR3 DMAT LL_LPUART_EnableDMAReq_TX.

Parameters

LPUARTx

LPUART Instance

Return values

None

Definition at line 2641 of file stm32l4xx_ll_lpuart.h.

{
  SET_BIT(LPUARTx->CR3, USART_CR3_DMAT);
}

LL_LPUART_IsEnabledDMADeactOnRxErr()

__STATIC_INLINE uint32_t LL_LPUART_IsEnabledDMADeactOnRxErr

(

USART_TypeDef *

LPUARTx

)

Indicate if DMA Disabling on Reception Error is disabled CR3 DDRE LL_LPUART_IsEnabledDMADeactOnRxErr.

Parameters

LPUARTx

LPUART Instance

Return values

State

of bit (1 or 0).

Definition at line 2696 of file stm32l4xx_ll_lpuart.h.

{
  return ((READ_BIT(LPUARTx->CR3, USART_CR3_DDRE) == (USART_CR3_DDRE)) ? 1UL : 0UL);
}

LL_LPUART_IsEnabledDMAReq_RX()

__STATIC_INLINE uint32_t LL_LPUART_IsEnabledDMAReq_RX

(

USART_TypeDef *

LPUARTx

)

Check if DMA Mode is enabled for reception CR3 DMAR LL_LPUART_IsEnabledDMAReq_RX.

Parameters

LPUARTx

LPUART Instance

Return values

State

of bit (1 or 0).

Definition at line 2630 of file stm32l4xx_ll_lpuart.h.

{
  return ((READ_BIT(LPUARTx->CR3, USART_CR3_DMAR) == (USART_CR3_DMAR)) ? 1UL : 0UL);
}

LL_LPUART_IsEnabledDMAReq_TX()

__STATIC_INLINE uint32_t LL_LPUART_IsEnabledDMAReq_TX

(

USART_TypeDef *

LPUARTx

)

Check if DMA Mode is enabled for transmission CR3 DMAT LL_LPUART_IsEnabledDMAReq_TX.

Parameters

LPUARTx

LPUART Instance

Return values

State

of bit (1 or 0).

Definition at line 2663 of file stm32l4xx_ll_lpuart.h.

{
  return ((READ_BIT(LPUARTx->CR3, USART_CR3_DMAT) == (USART_CR3_DMAT)) ? 1UL : 0UL);
}