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/**
******************************************************************************
* @file stm32l4xx_ll_lpuart.h
* @author MCD Application Team
* @brief Header file of LPUART LL module.
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32L4xx_LL_LPUART_H
#define STM32L4xx_LL_LPUART_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx.h"
/** @addtogroup STM32L4xx_LL_Driver
* @{
*/
#if defined (LPUART1)
/** @defgroup LPUART_LL LPUART
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
#if defined(USART_PRESC_PRESCALER)
/** @defgroup LPUART_LL_Private_Variables LPUART Private Variables
* @{
*/
/* Array used to get the LPUART prescaler division decimal values versus @ref LPUART_LL_EC_PRESCALER values */
static const uint16_t LPUART_PRESCALER_TAB[] =
{
(uint16_t)1,
(uint16_t)2,
(uint16_t)4,
(uint16_t)6,
(uint16_t)8,
(uint16_t)10,
(uint16_t)12,
(uint16_t)16,
(uint16_t)32,
(uint16_t)64,
(uint16_t)128,
(uint16_t)256
};
/**
* @}
*/
#endif /* USART_PRESC_PRESCALER */
/* Private constants ---------------------------------------------------------*/
/** @defgroup LPUART_LL_Private_Constants LPUART Private Constants
* @{
*/
/* Defines used in Baud Rate related macros and corresponding register setting computation */
#define LPUART_LPUARTDIV_FREQ_MUL 256U
#define LPUART_BRR_MASK 0x000FFFFFU
#define LPUART_BRR_MIN_VALUE 0x00000300U
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup LPUART_LL_Private_Macros LPUART Private Macros
* @{
*/
/**
* @}
*/
#endif /*USE_FULL_LL_DRIVER*/
/* Exported types ------------------------------------------------------------*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup LPUART_LL_ES_INIT LPUART Exported Init structures
* @{
*/
/**
* @brief LL LPUART Init Structure definition
*/
typedef struct
{
#if defined(USART_PRESC_PRESCALER)
uint32_t PrescalerValue; /*!< Specifies the Prescaler to compute the communication baud rate.
This parameter can be a value of @ref LPUART_LL_EC_PRESCALER.
This feature can be modified afterwards using unitary
function @ref LL_LPUART_SetPrescaler().*/
#endif /* USART_PRESC_PRESCALER */
uint32_t BaudRate; /*!< This field defines expected LPUART communication baud rate.
This feature can be modified afterwards using unitary
function @ref LL_LPUART_SetBaudRate().*/
uint32_t DataWidth; /*!< Specifies the number of data bits transmitted or received in a frame.
This parameter can be a value of @ref LPUART_LL_EC_DATAWIDTH.
This feature can be modified afterwards using unitary
function @ref LL_LPUART_SetDataWidth().*/
uint32_t StopBits; /*!< Specifies the number of stop bits transmitted.
This parameter can be a value of @ref LPUART_LL_EC_STOPBITS.
This feature can be modified afterwards using unitary
function @ref LL_LPUART_SetStopBitsLength().*/
uint32_t Parity; /*!< Specifies the parity mode.
This parameter can be a value of @ref LPUART_LL_EC_PARITY.
This feature can be modified afterwards using unitary
function @ref LL_LPUART_SetParity().*/
uint32_t TransferDirection; /*!< Specifies whether the Receive and/or Transmit mode is enabled or disabled.
This parameter can be a value of @ref LPUART_LL_EC_DIRECTION.
This feature can be modified afterwards using unitary
function @ref LL_LPUART_SetTransferDirection().*/
uint32_t HardwareFlowControl; /*!< Specifies whether the hardware flow control mode is enabled or disabled.
This parameter can be a value of @ref LPUART_LL_EC_HWCONTROL.
This feature can be modified afterwards using unitary
function @ref LL_LPUART_SetHWFlowCtrl().*/
} LL_LPUART_InitTypeDef;
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/* Exported constants --------------------------------------------------------*/
/** @defgroup LPUART_LL_Exported_Constants LPUART Exported Constants
* @{
*/
/** @defgroup LPUART_LL_EC_CLEAR_FLAG Clear Flags Defines
* @brief Flags defines which can be used with LL_LPUART_WriteReg function
* @{
*/
#define LL_LPUART_ICR_PECF USART_ICR_PECF /*!< Parity error clear flag */
#define LL_LPUART_ICR_FECF USART_ICR_FECF /*!< Framing error clear flag */
#define LL_LPUART_ICR_NCF USART_ICR_NECF /*!< Noise error detected clear flag */
#define LL_LPUART_ICR_ORECF USART_ICR_ORECF /*!< Overrun error clear flag */
#define LL_LPUART_ICR_IDLECF USART_ICR_IDLECF /*!< Idle line detected clear flag */
#define LL_LPUART_ICR_TCCF USART_ICR_TCCF /*!< Transmission complete clear flag */
#define LL_LPUART_ICR_CTSCF USART_ICR_CTSCF /*!< CTS clear flag */
#define LL_LPUART_ICR_CMCF USART_ICR_CMCF /*!< Character match clear flag */
#define LL_LPUART_ICR_WUCF USART_ICR_WUCF /*!< Wakeup from Stop mode clear flag */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_GET_FLAG Get Flags Defines
* @brief Flags defines which can be used with LL_LPUART_ReadReg function
* @{
*/
#define LL_LPUART_ISR_PE USART_ISR_PE /*!< Parity error flag */
#define LL_LPUART_ISR_FE USART_ISR_FE /*!< Framing error flag */
#define LL_LPUART_ISR_NE USART_ISR_NE /*!< Noise detected flag */
#define LL_LPUART_ISR_ORE USART_ISR_ORE /*!< Overrun error flag */
#define LL_LPUART_ISR_IDLE USART_ISR_IDLE /*!< Idle line detected flag */
#if defined(USART_CR1_FIFOEN)
#define LL_LPUART_ISR_RXNE_RXFNE USART_ISR_RXNE_RXFNE /*!< Read data register or RX FIFO not empty flag */
#else
#define LL_LPUART_ISR_RXNE USART_ISR_RXNE /*!< Read data register not empty flag */
#endif /* USART_CR1_FIFOEN */
#define LL_LPUART_ISR_TC USART_ISR_TC /*!< Transmission complete flag */
#if defined(USART_CR1_FIFOEN)
#define LL_LPUART_ISR_TXE_TXFNF USART_ISR_TXE_TXFNF /*!< Transmit data register empty or TX FIFO Not Full flag*/
#else
#define LL_LPUART_ISR_TXE USART_ISR_TXE /*!< Transmit data register empty flag */
#endif /* USART_CR1_FIFOEN */
#define LL_LPUART_ISR_CTSIF USART_ISR_CTSIF /*!< CTS interrupt flag */
#define LL_LPUART_ISR_CTS USART_ISR_CTS /*!< CTS flag */
#define LL_LPUART_ISR_BUSY USART_ISR_BUSY /*!< Busy flag */
#define LL_LPUART_ISR_CMF USART_ISR_CMF /*!< Character match flag */
#define LL_LPUART_ISR_SBKF USART_ISR_SBKF /*!< Send break flag */
#define LL_LPUART_ISR_RWU USART_ISR_RWU /*!< Receiver wakeup from Mute mode flag */
#define LL_LPUART_ISR_WUF USART_ISR_WUF /*!< Wakeup from Stop mode flag */
#define LL_LPUART_ISR_TEACK USART_ISR_TEACK /*!< Transmit enable acknowledge flag */
#define LL_LPUART_ISR_REACK USART_ISR_REACK /*!< Receive enable acknowledge flag */
#if defined(USART_CR1_FIFOEN)
#define LL_LPUART_ISR_TXFE USART_ISR_TXFE /*!< TX FIFO empty flag */
#define LL_LPUART_ISR_RXFF USART_ISR_RXFF /*!< RX FIFO full flag */
#define LL_LPUART_ISR_RXFT USART_ISR_RXFT /*!< RX FIFO threshold flag */
#define LL_LPUART_ISR_TXFT USART_ISR_TXFT /*!< TX FIFO threshold flag */
#endif /* USART_CR1_FIFOEN */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_IT IT Defines
* @brief IT defines which can be used with LL_LPUART_ReadReg and LL_LPUART_WriteReg functions
* @{
*/
#define LL_LPUART_CR1_IDLEIE USART_CR1_IDLEIE /*!< IDLE interrupt enable */
#if defined(USART_CR1_FIFOEN)
#define LL_LPUART_CR1_RXNEIE_RXFNEIE USART_CR1_RXNEIE_RXFNEIE /*!< Read data register and RXFIFO not empty
interrupt enable */
#else
#define LL_LPUART_CR1_RXNEIE USART_CR1_RXNEIE /*!< Read data register not empty interrupt enable */
#endif /* USART_CR1_FIFOEN */
#define LL_LPUART_CR1_TCIE USART_CR1_TCIE /*!< Transmission complete interrupt enable */
#if defined(USART_CR1_FIFOEN)
#define LL_LPUART_CR1_TXEIE_TXFNFIE USART_CR1_TXEIE_TXFNFIE /*!< Transmit data register empty and TX FIFO
not full interrupt enable */
#else
#define LL_LPUART_CR1_TXEIE USART_CR1_TXEIE /*!< Transmit data register empty interrupt enable */
#endif /* USART_CR1_FIFOEN */
#define LL_LPUART_CR1_PEIE USART_CR1_PEIE /*!< Parity error */
#define LL_LPUART_CR1_CMIE USART_CR1_CMIE /*!< Character match interrupt enable */
#if defined(USART_CR1_FIFOEN)
#define LL_LPUART_CR1_TXFEIE USART_CR1_TXFEIE /*!< TX FIFO empty interrupt enable */
#define LL_LPUART_CR1_RXFFIE USART_CR1_RXFFIE /*!< RX FIFO full interrupt enable */
#endif /* USART_CR1_FIFOEN */
#define LL_LPUART_CR3_EIE USART_CR3_EIE /*!< Error interrupt enable */
#define LL_LPUART_CR3_CTSIE USART_CR3_CTSIE /*!< CTS interrupt enable */
#define LL_LPUART_CR3_WUFIE USART_CR3_WUFIE /*!< Wakeup from Stop mode interrupt enable */
#if defined(USART_CR1_FIFOEN)
#define LL_LPUART_CR3_TXFTIE USART_CR3_TXFTIE /*!< TX FIFO threshold interrupt enable */
#define LL_LPUART_CR3_RXFTIE USART_CR3_RXFTIE /*!< RX FIFO threshold interrupt enable */
#endif /* USART_CR1_FIFOEN */
/**
* @}
*/
#if defined(USART_CR1_FIFOEN)
/** @defgroup LPUART_LL_EC_FIFOTHRESHOLD FIFO Threshold
* @{
*/
#define LL_LPUART_FIFOTHRESHOLD_1_8 0x00000000U /*!< FIFO reaches 1/8 of its depth */
#define LL_LPUART_FIFOTHRESHOLD_1_4 0x00000001U /*!< FIFO reaches 1/4 of its depth */
#define LL_LPUART_FIFOTHRESHOLD_1_2 0x00000002U /*!< FIFO reaches 1/2 of its depth */
#define LL_LPUART_FIFOTHRESHOLD_3_4 0x00000003U /*!< FIFO reaches 3/4 of its depth */
#define LL_LPUART_FIFOTHRESHOLD_7_8 0x00000004U /*!< FIFO reaches 7/8 of its depth */
#define LL_LPUART_FIFOTHRESHOLD_8_8 0x00000005U /*!< FIFO becomes empty for TX and full for RX */
/**
* @}
*/
#endif /* USART_CR1_FIFOEN */
/** @defgroup LPUART_LL_EC_DIRECTION Direction
* @{
*/
#define LL_LPUART_DIRECTION_NONE 0x00000000U /*!< Transmitter and Receiver are disabled */
#define LL_LPUART_DIRECTION_RX USART_CR1_RE /*!< Transmitter is disabled and Receiver is enabled */
#define LL_LPUART_DIRECTION_TX USART_CR1_TE /*!< Transmitter is enabled and Receiver is disabled */
#define LL_LPUART_DIRECTION_TX_RX (USART_CR1_TE |USART_CR1_RE) /*!< Transmitter and Receiver are enabled */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_PARITY Parity Control
* @{
*/
#define LL_LPUART_PARITY_NONE 0x00000000U /*!< Parity control disabled */
#define LL_LPUART_PARITY_EVEN USART_CR1_PCE /*!< Parity control enabled and Even Parity is selected */
#define LL_LPUART_PARITY_ODD (USART_CR1_PCE | USART_CR1_PS) /*!< Parity control enabled and Odd Parity is selected */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_WAKEUP Wakeup
* @{
*/
#define LL_LPUART_WAKEUP_IDLELINE 0x00000000U /*!< LPUART wake up from Mute mode on Idle Line */
#define LL_LPUART_WAKEUP_ADDRESSMARK USART_CR1_WAKE /*!< LPUART wake up from Mute mode on Address Mark */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_DATAWIDTH Datawidth
* @{
*/
#define LL_LPUART_DATAWIDTH_7B USART_CR1_M1 /*!< 7 bits word length : Start bit, 7 data bits, n stop bits */
#define LL_LPUART_DATAWIDTH_8B 0x00000000U /*!< 8 bits word length : Start bit, 8 data bits, n stop bits */
#define LL_LPUART_DATAWIDTH_9B USART_CR1_M0 /*!< 9 bits word length : Start bit, 9 data bits, n stop bits */
/**
* @}
*/
#if defined(USART_PRESC_PRESCALER)
/** @defgroup LPUART_LL_EC_PRESCALER Clock Source Prescaler
* @{
*/
#define LL_LPUART_PRESCALER_DIV1 0x00000000U /*!< Input clock not divided */
#define LL_LPUART_PRESCALER_DIV2 (USART_PRESC_PRESCALER_0) /*!< Input clock divided by 2 */
#define LL_LPUART_PRESCALER_DIV4 (USART_PRESC_PRESCALER_1) /*!< Input clock divided by 4 */
#define LL_LPUART_PRESCALER_DIV6 (USART_PRESC_PRESCALER_1 |\
USART_PRESC_PRESCALER_0) /*!< Input clock divided by 6 */
#define LL_LPUART_PRESCALER_DIV8 (USART_PRESC_PRESCALER_2) /*!< Input clock divided by 8 */
#define LL_LPUART_PRESCALER_DIV10 (USART_PRESC_PRESCALER_2 |\
USART_PRESC_PRESCALER_0) /*!< Input clock divided by 10 */
#define LL_LPUART_PRESCALER_DIV12 (USART_PRESC_PRESCALER_2 |\
USART_PRESC_PRESCALER_1) /*!< Input clock divided by 12 */
#define LL_LPUART_PRESCALER_DIV16 (USART_PRESC_PRESCALER_2 |\
USART_PRESC_PRESCALER_1 |\
USART_PRESC_PRESCALER_0) /*!< Input clock divided by 16 */
#define LL_LPUART_PRESCALER_DIV32 (USART_PRESC_PRESCALER_3) /*!< Input clock divided by 32 */
#define LL_LPUART_PRESCALER_DIV64 (USART_PRESC_PRESCALER_3 |\
USART_PRESC_PRESCALER_0) /*!< Input clock divided by 64 */
#define LL_LPUART_PRESCALER_DIV128 (USART_PRESC_PRESCALER_3 |\
USART_PRESC_PRESCALER_1) /*!< Input clock divided by 128 */
#define LL_LPUART_PRESCALER_DIV256 (USART_PRESC_PRESCALER_3 |\
USART_PRESC_PRESCALER_1 |\
USART_PRESC_PRESCALER_0) /*!< Input clock divided by 256 */
/**
* @}
*/
#endif /* USART_PRESC_PRESCALER */
/** @defgroup LPUART_LL_EC_STOPBITS Stop Bits
* @{
*/
#define LL_LPUART_STOPBITS_1 0x00000000U /*!< 1 stop bit */
#define LL_LPUART_STOPBITS_2 USART_CR2_STOP_1 /*!< 2 stop bits */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_TXRX TX RX Pins Swap
* @{
*/
#define LL_LPUART_TXRX_STANDARD 0x00000000U /*!< TX/RX pins are used as defined in standard pinout */
#define LL_LPUART_TXRX_SWAPPED (USART_CR2_SWAP) /*!< TX and RX pins functions are swapped. */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_RXPIN_LEVEL RX Pin Active Level Inversion
* @{
*/
#define LL_LPUART_RXPIN_LEVEL_STANDARD 0x00000000U /*!< RX pin signal works using the standard logic levels */
#define LL_LPUART_RXPIN_LEVEL_INVERTED (USART_CR2_RXINV) /*!< RX pin signal values are inverted. */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_TXPIN_LEVEL TX Pin Active Level Inversion
* @{
*/
#define LL_LPUART_TXPIN_LEVEL_STANDARD 0x00000000U /*!< TX pin signal works using the standard logic levels */
#define LL_LPUART_TXPIN_LEVEL_INVERTED (USART_CR2_TXINV) /*!< TX pin signal values are inverted. */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_BINARY_LOGIC Binary Data Inversion
* @{
*/
#define LL_LPUART_BINARY_LOGIC_POSITIVE 0x00000000U /*!< Logical data from the data register are send/received
in positive/direct logic. (1=H, 0=L) */
#define LL_LPUART_BINARY_LOGIC_NEGATIVE USART_CR2_DATAINV /*!< Logical data from the data register are send/received
in negative/inverse logic. (1=L, 0=H).
The parity bit is also inverted. */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_BITORDER Bit Order
* @{
*/
#define LL_LPUART_BITORDER_LSBFIRST 0x00000000U /*!< data is transmitted/received with data bit 0 first,
following the start bit */
#define LL_LPUART_BITORDER_MSBFIRST USART_CR2_MSBFIRST /*!< data is transmitted/received with the MSB first,
following the start bit */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_ADDRESS_DETECT Address Length Detection
* @{
*/
#define LL_LPUART_ADDRESS_DETECT_4B 0x00000000U /*!< 4-bit address detection method selected */
#define LL_LPUART_ADDRESS_DETECT_7B USART_CR2_ADDM7 /*!< 7-bit address detection (in 8-bit data mode) method selected */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_HWCONTROL Hardware Control
* @{
*/
#define LL_LPUART_HWCONTROL_NONE 0x00000000U /*!< CTS and RTS hardware flow control disabled */
#define LL_LPUART_HWCONTROL_RTS USART_CR3_RTSE /*!< RTS output enabled, data is only requested
when there is space in the receive buffer */
#define LL_LPUART_HWCONTROL_CTS USART_CR3_CTSE /*!< CTS mode enabled, data is only transmitted
when the nCTS input is asserted (tied to 0)*/
#define LL_LPUART_HWCONTROL_RTS_CTS (USART_CR3_RTSE | USART_CR3_CTSE) /*!< CTS and RTS hardware flow control enabled */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_WAKEUP_ON Wakeup Activation
* @{
*/
#define LL_LPUART_WAKEUP_ON_ADDRESS 0x00000000U /*!< Wake up active on address match */
#define LL_LPUART_WAKEUP_ON_STARTBIT USART_CR3_WUS_1 /*!< Wake up active on Start bit detection */
#define LL_LPUART_WAKEUP_ON_RXNE (USART_CR3_WUS_0 | USART_CR3_WUS_1) /*!< Wake up active on RXNE */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_DE_POLARITY Driver Enable Polarity
* @{
*/
#define LL_LPUART_DE_POLARITY_HIGH 0x00000000U /*!< DE signal is active high */
#define LL_LPUART_DE_POLARITY_LOW USART_CR3_DEP /*!< DE signal is active low */
/**
* @}
*/
/** @defgroup LPUART_LL_EC_DMA_REG_DATA DMA Register Data
* @{
*/
#define LL_LPUART_DMA_REG_DATA_TRANSMIT 0x00000000U /*!< Get address of data register used for transmission */
#define LL_LPUART_DMA_REG_DATA_RECEIVE 0x00000001U /*!< Get address of data register used for reception */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup LPUART_LL_Exported_Macros LPUART Exported Macros
* @{
*/
/** @defgroup LPUART_LL_EM_WRITE_READ Common Write and read registers Macros
* @{
*/
/**
* @brief Write a value in LPUART register
* @param __INSTANCE__ LPUART Instance
* @param __REG__ Register to be written
* @param __VALUE__ Value to be written in the register
* @retval None
*/
#define LL_LPUART_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
/**
* @brief Read a value in LPUART register
* @param __INSTANCE__ LPUART Instance
* @param __REG__ Register to be read
* @retval Register value
*/
#define LL_LPUART_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
/**
* @}
*/
/** @defgroup LPUART_LL_EM_Exported_Macros_Helper Helper Macros
* @{
*/
/**
* @brief Compute LPUARTDIV value according to Peripheral Clock and
* expected Baud Rate (20-bit value of LPUARTDIV is returned)
* @param __PERIPHCLK__ Peripheral Clock frequency used for LPUART Instance
@if USART_PRESC_PRESCALER
* @param __PRESCALER__ This parameter can be one of the following values:
* @arg @ref LL_LPUART_PRESCALER_DIV1
* @arg @ref LL_LPUART_PRESCALER_DIV2
* @arg @ref LL_LPUART_PRESCALER_DIV4
* @arg @ref LL_LPUART_PRESCALER_DIV6
* @arg @ref LL_LPUART_PRESCALER_DIV8
* @arg @ref LL_LPUART_PRESCALER_DIV10
* @arg @ref LL_LPUART_PRESCALER_DIV12
* @arg @ref LL_LPUART_PRESCALER_DIV16
* @arg @ref LL_LPUART_PRESCALER_DIV32
* @arg @ref LL_LPUART_PRESCALER_DIV64
* @arg @ref LL_LPUART_PRESCALER_DIV128
* @arg @ref LL_LPUART_PRESCALER_DIV256
@endif
* @param __BAUDRATE__ Baud Rate value to achieve
* @retval LPUARTDIV value to be used for BRR register filling
*/
#if defined(USART_PRESC_PRESCALER)
#define __LL_LPUART_DIV(__PERIPHCLK__, __PRESCALER__, __BAUDRATE__) (uint32_t)\
((((((uint64_t)(__PERIPHCLK__)/(uint64_t)(LPUART_PRESCALER_TAB[(uint16_t)(__PRESCALER__)]))\
* LPUART_LPUARTDIV_FREQ_MUL) + (uint32_t)((__BAUDRATE__)/2U))/(__BAUDRATE__)) & LPUART_BRR_MASK)
#else
#define __LL_LPUART_DIV(__PERIPHCLK__, __BAUDRATE__) (uint32_t)(((((uint64_t)(__PERIPHCLK__)*LPUART_LPUARTDIV_FREQ_MUL) + (uint32_t)((__BAUDRATE__)/2U))/(__BAUDRATE__))\
& LPUART_BRR_MASK)
#endif /* USART_PRESC_PRESCALER */
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup LPUART_LL_Exported_Functions LPUART Exported Functions
* @{
*/
/** @defgroup LPUART_LL_EF_Configuration Configuration functions
* @{
*/
/**
* @brief LPUART Enable
* @rmtoll CR1 UE LL_LPUART_Enable
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_Enable(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->CR1, USART_CR1_UE);
}
/**
* @brief LPUART Disable
* @note When LPUART is disabled, LPUART prescalers and outputs are stopped immediately,
* and current operations are discarded. The configuration of the LPUART is kept, but all the status
* flags, in the LPUARTx_ISR are set to their default values.
* @note In order to go into low-power mode without generating errors on the line,
* the TE bit must be reset before and the software must wait
* for the TC bit in the LPUART_ISR to be set before resetting the UE bit.
* The DMA requests are also reset when UE = 0 so the DMA channel must
* be disabled before resetting the UE bit.
* @rmtoll CR1 UE LL_LPUART_Disable
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_Disable(USART_TypeDef *LPUARTx)
{
CLEAR_BIT(LPUARTx->CR1, USART_CR1_UE);
}
/**
* @brief Indicate if LPUART is enabled
* @rmtoll CR1 UE LL_LPUART_IsEnabled
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabled(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_UE) == (USART_CR1_UE)) ? 1UL : 0UL);
}
#if defined(USART_CR1_FIFOEN)
/**
* @brief FIFO Mode Enable
* @rmtoll CR1 FIFOEN LL_LPUART_EnableFIFO
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableFIFO(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->CR1, USART_CR1_FIFOEN);
}
/**
* @brief FIFO Mode Disable
* @rmtoll CR1 FIFOEN LL_LPUART_DisableFIFO
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableFIFO(USART_TypeDef *LPUARTx)
{
CLEAR_BIT(LPUARTx->CR1, USART_CR1_FIFOEN);
}
/**
* @brief Indicate if FIFO Mode is enabled
* @rmtoll CR1 FIFOEN LL_LPUART_IsEnabledFIFO
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledFIFO(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_FIFOEN) == (USART_CR1_FIFOEN)) ? 1UL : 0UL);
}
/**
* @brief Configure TX FIFO Threshold
* @rmtoll CR3 TXFTCFG LL_LPUART_SetTXFIFOThreshold
* @param LPUARTx LPUART Instance
* @param Threshold This parameter can be one of the following values:
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_2
* @arg @ref LL_LPUART_FIFOTHRESHOLD_3_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_7_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_8_8
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetTXFIFOThreshold(USART_TypeDef *LPUARTx, uint32_t Threshold)
{
ATOMIC_MODIFY_REG(LPUARTx->CR3, USART_CR3_TXFTCFG, Threshold << USART_CR3_TXFTCFG_Pos);
}
/**
* @brief Return TX FIFO Threshold Configuration
* @rmtoll CR3 TXFTCFG LL_LPUART_GetTXFIFOThreshold
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_2
* @arg @ref LL_LPUART_FIFOTHRESHOLD_3_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_7_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_8_8
*/
__STATIC_INLINE uint32_t LL_LPUART_GetTXFIFOThreshold(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR3, USART_CR3_TXFTCFG) >> USART_CR3_TXFTCFG_Pos);
}
/**
* @brief Configure RX FIFO Threshold
* @rmtoll CR3 RXFTCFG LL_LPUART_SetRXFIFOThreshold
* @param LPUARTx LPUART Instance
* @param Threshold This parameter can be one of the following values:
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_2
* @arg @ref LL_LPUART_FIFOTHRESHOLD_3_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_7_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_8_8
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetRXFIFOThreshold(USART_TypeDef *LPUARTx, uint32_t Threshold)
{
ATOMIC_MODIFY_REG(LPUARTx->CR3, USART_CR3_RXFTCFG, Threshold << USART_CR3_RXFTCFG_Pos);
}
/**
* @brief Return RX FIFO Threshold Configuration
* @rmtoll CR3 RXFTCFG LL_LPUART_GetRXFIFOThreshold
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_2
* @arg @ref LL_LPUART_FIFOTHRESHOLD_3_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_7_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_8_8
*/
__STATIC_INLINE uint32_t LL_LPUART_GetRXFIFOThreshold(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR3, USART_CR3_RXFTCFG) >> USART_CR3_RXFTCFG_Pos);
}
/**
* @brief Configure TX and RX FIFOs Threshold
* @rmtoll CR3 TXFTCFG LL_LPUART_ConfigFIFOsThreshold\n
* CR3 RXFTCFG LL_LPUART_ConfigFIFOsThreshold
* @param LPUARTx LPUART Instance
* @param TXThreshold This parameter can be one of the following values:
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_2
* @arg @ref LL_LPUART_FIFOTHRESHOLD_3_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_7_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_8_8
* @param RXThreshold This parameter can be one of the following values:
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_1_2
* @arg @ref LL_LPUART_FIFOTHRESHOLD_3_4
* @arg @ref LL_LPUART_FIFOTHRESHOLD_7_8
* @arg @ref LL_LPUART_FIFOTHRESHOLD_8_8
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ConfigFIFOsThreshold(USART_TypeDef *LPUARTx, uint32_t TXThreshold, uint32_t RXThreshold)
{
ATOMIC_MODIFY_REG(LPUARTx->CR3, USART_CR3_TXFTCFG | USART_CR3_RXFTCFG, (TXThreshold << USART_CR3_TXFTCFG_Pos) | \
(RXThreshold << USART_CR3_RXFTCFG_Pos));
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief LPUART enabled in STOP Mode
* @note When this function is enabled, LPUART is able to wake up the MCU from Stop mode, provided that
* LPUART clock selection is HSI or LSE in RCC.
* @rmtoll CR1 UESM LL_LPUART_EnableInStopMode
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableInStopMode(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_UESM);
}
/**
* @brief LPUART disabled in STOP Mode
* @note When this function is disabled, LPUART is not able to wake up the MCU from Stop mode
* @rmtoll CR1 UESM LL_LPUART_DisableInStopMode
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableInStopMode(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_UESM);
}
/**
* @brief Indicate if LPUART is enabled in STOP Mode
* (able to wake up MCU from Stop mode or not)
* @rmtoll CR1 UESM LL_LPUART_IsEnabledInStopMode
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledInStopMode(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_UESM) == (USART_CR1_UESM)) ? 1UL : 0UL);
}
#if defined(USART_CR3_UCESM)
/**
* @brief LPUART Clock enabled in STOP Mode
* @note When this function is called, LPUART Clock is enabled while in STOP mode
* @rmtoll CR3 UCESM LL_LPUART_EnableClockInStopMode
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableClockInStopMode(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR3, USART_CR3_UCESM);
}
/**
* @brief LPUART clock disabled in STOP Mode
* @note When this function is called, LPUART Clock is disabled while in STOP mode
* @rmtoll CR3 UCESM LL_LPUART_DisableClockInStopMode
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableClockInStopMode(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR3, USART_CR3_UCESM);
}
/**
* @brief Indicate if LPUART clock is enabled in STOP Mode
* @rmtoll CR3 UCESM LL_LPUART_IsClockEnabledInStopMode
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsClockEnabledInStopMode(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_UCESM) == (USART_CR3_UCESM)) ? 1UL : 0UL);
}
#endif /* USART_CR3_UCESM */
/**
* @brief Receiver Enable (Receiver is enabled and begins searching for a start bit)
* @rmtoll CR1 RE LL_LPUART_EnableDirectionRx
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableDirectionRx(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_RE);
}
/**
* @brief Receiver Disable
* @rmtoll CR1 RE LL_LPUART_DisableDirectionRx
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableDirectionRx(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_RE);
}
/**
* @brief Transmitter Enable
* @rmtoll CR1 TE LL_LPUART_EnableDirectionTx
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableDirectionTx(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_TE);
}
/**
* @brief Transmitter Disable
* @rmtoll CR1 TE LL_LPUART_DisableDirectionTx
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableDirectionTx(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_TE);
}
/**
* @brief Configure simultaneously enabled/disabled states
* of Transmitter and Receiver
* @rmtoll CR1 RE LL_LPUART_SetTransferDirection\n
* CR1 TE LL_LPUART_SetTransferDirection
* @param LPUARTx LPUART Instance
* @param TransferDirection This parameter can be one of the following values:
* @arg @ref LL_LPUART_DIRECTION_NONE
* @arg @ref LL_LPUART_DIRECTION_RX
* @arg @ref LL_LPUART_DIRECTION_TX
* @arg @ref LL_LPUART_DIRECTION_TX_RX
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetTransferDirection(USART_TypeDef *LPUARTx, uint32_t TransferDirection)
{
ATOMIC_MODIFY_REG(LPUARTx->CR1, USART_CR1_RE | USART_CR1_TE, TransferDirection);
}
/**
* @brief Return enabled/disabled states of Transmitter and Receiver
* @rmtoll CR1 RE LL_LPUART_GetTransferDirection\n
* CR1 TE LL_LPUART_GetTransferDirection
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_DIRECTION_NONE
* @arg @ref LL_LPUART_DIRECTION_RX
* @arg @ref LL_LPUART_DIRECTION_TX
* @arg @ref LL_LPUART_DIRECTION_TX_RX
*/
__STATIC_INLINE uint32_t LL_LPUART_GetTransferDirection(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_RE | USART_CR1_TE));
}
/**
* @brief Configure Parity (enabled/disabled and parity mode if enabled)
* @note This function selects if hardware parity control (generation and detection) is enabled or disabled.
* When the parity control is enabled (Odd or Even), computed parity bit is inserted at the MSB position
* (depending on data width) and parity is checked on the received data.
* @rmtoll CR1 PS LL_LPUART_SetParity\n
* CR1 PCE LL_LPUART_SetParity
* @param LPUARTx LPUART Instance
* @param Parity This parameter can be one of the following values:
* @arg @ref LL_LPUART_PARITY_NONE
* @arg @ref LL_LPUART_PARITY_EVEN
* @arg @ref LL_LPUART_PARITY_ODD
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetParity(USART_TypeDef *LPUARTx, uint32_t Parity)
{
MODIFY_REG(LPUARTx->CR1, USART_CR1_PS | USART_CR1_PCE, Parity);
}
/**
* @brief Return Parity configuration (enabled/disabled and parity mode if enabled)
* @rmtoll CR1 PS LL_LPUART_GetParity\n
* CR1 PCE LL_LPUART_GetParity
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_PARITY_NONE
* @arg @ref LL_LPUART_PARITY_EVEN
* @arg @ref LL_LPUART_PARITY_ODD
*/
__STATIC_INLINE uint32_t LL_LPUART_GetParity(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_PS | USART_CR1_PCE));
}
/**
* @brief Set Receiver Wake Up method from Mute mode.
* @rmtoll CR1 WAKE LL_LPUART_SetWakeUpMethod
* @param LPUARTx LPUART Instance
* @param Method This parameter can be one of the following values:
* @arg @ref LL_LPUART_WAKEUP_IDLELINE
* @arg @ref LL_LPUART_WAKEUP_ADDRESSMARK
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetWakeUpMethod(USART_TypeDef *LPUARTx, uint32_t Method)
{
MODIFY_REG(LPUARTx->CR1, USART_CR1_WAKE, Method);
}
/**
* @brief Return Receiver Wake Up method from Mute mode
* @rmtoll CR1 WAKE LL_LPUART_GetWakeUpMethod
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_WAKEUP_IDLELINE
* @arg @ref LL_LPUART_WAKEUP_ADDRESSMARK
*/
__STATIC_INLINE uint32_t LL_LPUART_GetWakeUpMethod(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_WAKE));
}
/**
* @brief Set Word length (nb of data bits, excluding start and stop bits)
* @rmtoll CR1 M LL_LPUART_SetDataWidth
* @param LPUARTx LPUART Instance
* @param DataWidth This parameter can be one of the following values:
* @arg @ref LL_LPUART_DATAWIDTH_7B
* @arg @ref LL_LPUART_DATAWIDTH_8B
* @arg @ref LL_LPUART_DATAWIDTH_9B
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetDataWidth(USART_TypeDef *LPUARTx, uint32_t DataWidth)
{
MODIFY_REG(LPUARTx->CR1, USART_CR1_M, DataWidth);
}
/**
* @brief Return Word length (i.e. nb of data bits, excluding start and stop bits)
* @rmtoll CR1 M LL_LPUART_GetDataWidth
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_DATAWIDTH_7B
* @arg @ref LL_LPUART_DATAWIDTH_8B
* @arg @ref LL_LPUART_DATAWIDTH_9B
*/
__STATIC_INLINE uint32_t LL_LPUART_GetDataWidth(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_M));
}
/**
* @brief Allow switch between Mute Mode and Active mode
* @rmtoll CR1 MME LL_LPUART_EnableMuteMode
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableMuteMode(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_MME);
}
/**
* @brief Prevent Mute Mode use. Set Receiver in active mode permanently.
* @rmtoll CR1 MME LL_LPUART_DisableMuteMode
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableMuteMode(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_MME);
}
/**
* @brief Indicate if switch between Mute Mode and Active mode is allowed
* @rmtoll CR1 MME LL_LPUART_IsEnabledMuteMode
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledMuteMode(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_MME) == (USART_CR1_MME)) ? 1UL : 0UL);
}
#if defined(USART_PRESC_PRESCALER)
/**
* @brief Configure Clock source prescaler for baudrate generator and oversampling
* @rmtoll PRESC PRESCALER LL_LPUART_SetPrescaler
* @param LPUARTx LPUART Instance
* @param PrescalerValue This parameter can be one of the following values:
* @arg @ref LL_LPUART_PRESCALER_DIV1
* @arg @ref LL_LPUART_PRESCALER_DIV2
* @arg @ref LL_LPUART_PRESCALER_DIV4
* @arg @ref LL_LPUART_PRESCALER_DIV6
* @arg @ref LL_LPUART_PRESCALER_DIV8
* @arg @ref LL_LPUART_PRESCALER_DIV10
* @arg @ref LL_LPUART_PRESCALER_DIV12
* @arg @ref LL_LPUART_PRESCALER_DIV16
* @arg @ref LL_LPUART_PRESCALER_DIV32
* @arg @ref LL_LPUART_PRESCALER_DIV64
* @arg @ref LL_LPUART_PRESCALER_DIV128
* @arg @ref LL_LPUART_PRESCALER_DIV256
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetPrescaler(USART_TypeDef *LPUARTx, uint32_t PrescalerValue)
{
MODIFY_REG(LPUARTx->PRESC, USART_PRESC_PRESCALER, (uint16_t)PrescalerValue);
}
/**
* @brief Retrieve the Clock source prescaler for baudrate generator and oversampling
* @rmtoll PRESC PRESCALER LL_LPUART_GetPrescaler
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_PRESCALER_DIV1
* @arg @ref LL_LPUART_PRESCALER_DIV2
* @arg @ref LL_LPUART_PRESCALER_DIV4
* @arg @ref LL_LPUART_PRESCALER_DIV6
* @arg @ref LL_LPUART_PRESCALER_DIV8
* @arg @ref LL_LPUART_PRESCALER_DIV10
* @arg @ref LL_LPUART_PRESCALER_DIV12
* @arg @ref LL_LPUART_PRESCALER_DIV16
* @arg @ref LL_LPUART_PRESCALER_DIV32
* @arg @ref LL_LPUART_PRESCALER_DIV64
* @arg @ref LL_LPUART_PRESCALER_DIV128
* @arg @ref LL_LPUART_PRESCALER_DIV256
*/
__STATIC_INLINE uint32_t LL_LPUART_GetPrescaler(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->PRESC, USART_PRESC_PRESCALER));
}
#endif /* USART_PRESC_PRESCALER */
/**
* @brief Set the length of the stop bits
* @rmtoll CR2 STOP LL_LPUART_SetStopBitsLength
* @param LPUARTx LPUART Instance
* @param StopBits This parameter can be one of the following values:
* @arg @ref LL_LPUART_STOPBITS_1
* @arg @ref LL_LPUART_STOPBITS_2
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetStopBitsLength(USART_TypeDef *LPUARTx, uint32_t StopBits)
{
MODIFY_REG(LPUARTx->CR2, USART_CR2_STOP, StopBits);
}
/**
* @brief Retrieve the length of the stop bits
* @rmtoll CR2 STOP LL_LPUART_GetStopBitsLength
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_STOPBITS_1
* @arg @ref LL_LPUART_STOPBITS_2
*/
__STATIC_INLINE uint32_t LL_LPUART_GetStopBitsLength(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_STOP));
}
/**
* @brief Configure Character frame format (Datawidth, Parity control, Stop Bits)
* @note Call of this function is equivalent to following function call sequence :
* - Data Width configuration using @ref LL_LPUART_SetDataWidth() function
* - Parity Control and mode configuration using @ref LL_LPUART_SetParity() function
* - Stop bits configuration using @ref LL_LPUART_SetStopBitsLength() function
* @rmtoll CR1 PS LL_LPUART_ConfigCharacter\n
* CR1 PCE LL_LPUART_ConfigCharacter\n
* CR1 M LL_LPUART_ConfigCharacter\n
* CR2 STOP LL_LPUART_ConfigCharacter
* @param LPUARTx LPUART Instance
* @param DataWidth This parameter can be one of the following values:
* @arg @ref LL_LPUART_DATAWIDTH_7B
* @arg @ref LL_LPUART_DATAWIDTH_8B
* @arg @ref LL_LPUART_DATAWIDTH_9B
* @param Parity This parameter can be one of the following values:
* @arg @ref LL_LPUART_PARITY_NONE
* @arg @ref LL_LPUART_PARITY_EVEN
* @arg @ref LL_LPUART_PARITY_ODD
* @param StopBits This parameter can be one of the following values:
* @arg @ref LL_LPUART_STOPBITS_1
* @arg @ref LL_LPUART_STOPBITS_2
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ConfigCharacter(USART_TypeDef *LPUARTx, uint32_t DataWidth, uint32_t Parity,
uint32_t StopBits)
{
MODIFY_REG(LPUARTx->CR1, USART_CR1_PS | USART_CR1_PCE | USART_CR1_M, Parity | DataWidth);
MODIFY_REG(LPUARTx->CR2, USART_CR2_STOP, StopBits);
}
/**
* @brief Configure TX/RX pins swapping setting.
* @rmtoll CR2 SWAP LL_LPUART_SetTXRXSwap
* @param LPUARTx LPUART Instance
* @param SwapConfig This parameter can be one of the following values:
* @arg @ref LL_LPUART_TXRX_STANDARD
* @arg @ref LL_LPUART_TXRX_SWAPPED
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetTXRXSwap(USART_TypeDef *LPUARTx, uint32_t SwapConfig)
{
MODIFY_REG(LPUARTx->CR2, USART_CR2_SWAP, SwapConfig);
}
/**
* @brief Retrieve TX/RX pins swapping configuration.
* @rmtoll CR2 SWAP LL_LPUART_GetTXRXSwap
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_TXRX_STANDARD
* @arg @ref LL_LPUART_TXRX_SWAPPED
*/
__STATIC_INLINE uint32_t LL_LPUART_GetTXRXSwap(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_SWAP));
}
/**
* @brief Configure RX pin active level logic
* @rmtoll CR2 RXINV LL_LPUART_SetRXPinLevel
* @param LPUARTx LPUART Instance
* @param PinInvMethod This parameter can be one of the following values:
* @arg @ref LL_LPUART_RXPIN_LEVEL_STANDARD
* @arg @ref LL_LPUART_RXPIN_LEVEL_INVERTED
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetRXPinLevel(USART_TypeDef *LPUARTx, uint32_t PinInvMethod)
{
MODIFY_REG(LPUARTx->CR2, USART_CR2_RXINV, PinInvMethod);
}
/**
* @brief Retrieve RX pin active level logic configuration
* @rmtoll CR2 RXINV LL_LPUART_GetRXPinLevel
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_RXPIN_LEVEL_STANDARD
* @arg @ref LL_LPUART_RXPIN_LEVEL_INVERTED
*/
__STATIC_INLINE uint32_t LL_LPUART_GetRXPinLevel(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_RXINV));
}
/**
* @brief Configure TX pin active level logic
* @rmtoll CR2 TXINV LL_LPUART_SetTXPinLevel
* @param LPUARTx LPUART Instance
* @param PinInvMethod This parameter can be one of the following values:
* @arg @ref LL_LPUART_TXPIN_LEVEL_STANDARD
* @arg @ref LL_LPUART_TXPIN_LEVEL_INVERTED
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetTXPinLevel(USART_TypeDef *LPUARTx, uint32_t PinInvMethod)
{
MODIFY_REG(LPUARTx->CR2, USART_CR2_TXINV, PinInvMethod);
}
/**
* @brief Retrieve TX pin active level logic configuration
* @rmtoll CR2 TXINV LL_LPUART_GetTXPinLevel
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_TXPIN_LEVEL_STANDARD
* @arg @ref LL_LPUART_TXPIN_LEVEL_INVERTED
*/
__STATIC_INLINE uint32_t LL_LPUART_GetTXPinLevel(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_TXINV));
}
/**
* @brief Configure Binary data logic.
*
* @note Allow to define how Logical data from the data register are send/received :
* either in positive/direct logic (1=H, 0=L) or in negative/inverse logic (1=L, 0=H)
* @rmtoll CR2 DATAINV LL_LPUART_SetBinaryDataLogic
* @param LPUARTx LPUART Instance
* @param DataLogic This parameter can be one of the following values:
* @arg @ref LL_LPUART_BINARY_LOGIC_POSITIVE
* @arg @ref LL_LPUART_BINARY_LOGIC_NEGATIVE
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetBinaryDataLogic(USART_TypeDef *LPUARTx, uint32_t DataLogic)
{
MODIFY_REG(LPUARTx->CR2, USART_CR2_DATAINV, DataLogic);
}
/**
* @brief Retrieve Binary data configuration
* @rmtoll CR2 DATAINV LL_LPUART_GetBinaryDataLogic
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_BINARY_LOGIC_POSITIVE
* @arg @ref LL_LPUART_BINARY_LOGIC_NEGATIVE
*/
__STATIC_INLINE uint32_t LL_LPUART_GetBinaryDataLogic(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_DATAINV));
}
/**
* @brief Configure transfer bit order (either Less or Most Significant Bit First)
* @note MSB First means data is transmitted/received with the MSB first, following the start bit.
* LSB First means data is transmitted/received with data bit 0 first, following the start bit.
* @rmtoll CR2 MSBFIRST LL_LPUART_SetTransferBitOrder
* @param LPUARTx LPUART Instance
* @param BitOrder This parameter can be one of the following values:
* @arg @ref LL_LPUART_BITORDER_LSBFIRST
* @arg @ref LL_LPUART_BITORDER_MSBFIRST
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetTransferBitOrder(USART_TypeDef *LPUARTx, uint32_t BitOrder)
{
MODIFY_REG(LPUARTx->CR2, USART_CR2_MSBFIRST, BitOrder);
}
/**
* @brief Return transfer bit order (either Less or Most Significant Bit First)
* @note MSB First means data is transmitted/received with the MSB first, following the start bit.
* LSB First means data is transmitted/received with data bit 0 first, following the start bit.
* @rmtoll CR2 MSBFIRST LL_LPUART_GetTransferBitOrder
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_BITORDER_LSBFIRST
* @arg @ref LL_LPUART_BITORDER_MSBFIRST
*/
__STATIC_INLINE uint32_t LL_LPUART_GetTransferBitOrder(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_MSBFIRST));
}
/**
* @brief Set Address of the LPUART node.
* @note This is used in multiprocessor communication during Mute mode or Stop mode,
* for wake up with address mark detection.
* @note 4bits address node is used when 4-bit Address Detection is selected in ADDM7.
* (b7-b4 should be set to 0)
* 8bits address node is used when 7-bit Address Detection is selected in ADDM7.
* (This is used in multiprocessor communication during Mute mode or Stop mode,
* for wake up with 7-bit address mark detection.
* The MSB of the character sent by the transmitter should be equal to 1.
* It may also be used for character detection during normal reception,
* Mute mode inactive (for example, end of block detection in ModBus protocol).
* In this case, the whole received character (8-bit) is compared to the ADD[7:0]
* value and CMF flag is set on match)
* @rmtoll CR2 ADD LL_LPUART_ConfigNodeAddress\n
* CR2 ADDM7 LL_LPUART_ConfigNodeAddress
* @param LPUARTx LPUART Instance
* @param AddressLen This parameter can be one of the following values:
* @arg @ref LL_LPUART_ADDRESS_DETECT_4B
* @arg @ref LL_LPUART_ADDRESS_DETECT_7B
* @param NodeAddress 4 or 7 bit Address of the LPUART node.
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ConfigNodeAddress(USART_TypeDef *LPUARTx, uint32_t AddressLen, uint32_t NodeAddress)
{
MODIFY_REG(LPUARTx->CR2, USART_CR2_ADD | USART_CR2_ADDM7,
(uint32_t)(AddressLen | (NodeAddress << USART_CR2_ADD_Pos)));
}
/**
* @brief Return 8 bit Address of the LPUART node as set in ADD field of CR2.
* @note If 4-bit Address Detection is selected in ADDM7,
* only 4bits (b3-b0) of returned value are relevant (b31-b4 are not relevant)
* If 7-bit Address Detection is selected in ADDM7,
* only 8bits (b7-b0) of returned value are relevant (b31-b8 are not relevant)
* @rmtoll CR2 ADD LL_LPUART_GetNodeAddress
* @param LPUARTx LPUART Instance
* @retval Address of the LPUART node (Value between Min_Data=0 and Max_Data=255)
*/
__STATIC_INLINE uint32_t LL_LPUART_GetNodeAddress(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_ADD) >> USART_CR2_ADD_Pos);
}
/**
* @brief Return Length of Node Address used in Address Detection mode (7-bit or 4-bit)
* @rmtoll CR2 ADDM7 LL_LPUART_GetNodeAddressLen
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_ADDRESS_DETECT_4B
* @arg @ref LL_LPUART_ADDRESS_DETECT_7B
*/
__STATIC_INLINE uint32_t LL_LPUART_GetNodeAddressLen(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_ADDM7));
}
/**
* @brief Enable RTS HW Flow Control
* @rmtoll CR3 RTSE LL_LPUART_EnableRTSHWFlowCtrl
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableRTSHWFlowCtrl(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->CR3, USART_CR3_RTSE);
}
/**
* @brief Disable RTS HW Flow Control
* @rmtoll CR3 RTSE LL_LPUART_DisableRTSHWFlowCtrl
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableRTSHWFlowCtrl(USART_TypeDef *LPUARTx)
{
CLEAR_BIT(LPUARTx->CR3, USART_CR3_RTSE);
}
/**
* @brief Enable CTS HW Flow Control
* @rmtoll CR3 CTSE LL_LPUART_EnableCTSHWFlowCtrl
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableCTSHWFlowCtrl(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->CR3, USART_CR3_CTSE);
}
/**
* @brief Disable CTS HW Flow Control
* @rmtoll CR3 CTSE LL_LPUART_DisableCTSHWFlowCtrl
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableCTSHWFlowCtrl(USART_TypeDef *LPUARTx)
{
CLEAR_BIT(LPUARTx->CR3, USART_CR3_CTSE);
}
/**
* @brief Configure HW Flow Control mode (both CTS and RTS)
* @rmtoll CR3 RTSE LL_LPUART_SetHWFlowCtrl\n
* CR3 CTSE LL_LPUART_SetHWFlowCtrl
* @param LPUARTx LPUART Instance
* @param HardwareFlowControl This parameter can be one of the following values:
* @arg @ref LL_LPUART_HWCONTROL_NONE
* @arg @ref LL_LPUART_HWCONTROL_RTS
* @arg @ref LL_LPUART_HWCONTROL_CTS
* @arg @ref LL_LPUART_HWCONTROL_RTS_CTS
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetHWFlowCtrl(USART_TypeDef *LPUARTx, uint32_t HardwareFlowControl)
{
MODIFY_REG(LPUARTx->CR3, USART_CR3_RTSE | USART_CR3_CTSE, HardwareFlowControl);
}
/**
* @brief Return HW Flow Control configuration (both CTS and RTS)
* @rmtoll CR3 RTSE LL_LPUART_GetHWFlowCtrl\n
* CR3 CTSE LL_LPUART_GetHWFlowCtrl
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_HWCONTROL_NONE
* @arg @ref LL_LPUART_HWCONTROL_RTS
* @arg @ref LL_LPUART_HWCONTROL_CTS
* @arg @ref LL_LPUART_HWCONTROL_RTS_CTS
*/
__STATIC_INLINE uint32_t LL_LPUART_GetHWFlowCtrl(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR3, USART_CR3_RTSE | USART_CR3_CTSE));
}
/**
* @brief Enable Overrun detection
* @rmtoll CR3 OVRDIS LL_LPUART_EnableOverrunDetect
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableOverrunDetect(USART_TypeDef *LPUARTx)
{
CLEAR_BIT(LPUARTx->CR3, USART_CR3_OVRDIS);
}
/**
* @brief Disable Overrun detection
* @rmtoll CR3 OVRDIS LL_LPUART_DisableOverrunDetect
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableOverrunDetect(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->CR3, USART_CR3_OVRDIS);
}
/**
* @brief Indicate if Overrun detection is enabled
* @rmtoll CR3 OVRDIS LL_LPUART_IsEnabledOverrunDetect
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledOverrunDetect(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_OVRDIS) != USART_CR3_OVRDIS) ? 1UL : 0UL);
}
/**
* @brief Select event type for Wake UP Interrupt Flag (WUS[1:0] bits)
* @rmtoll CR3 WUS LL_LPUART_SetWKUPType
* @param LPUARTx LPUART Instance
* @param Type This parameter can be one of the following values:
* @arg @ref LL_LPUART_WAKEUP_ON_ADDRESS
* @arg @ref LL_LPUART_WAKEUP_ON_STARTBIT
* @arg @ref LL_LPUART_WAKEUP_ON_RXNE
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetWKUPType(USART_TypeDef *LPUARTx, uint32_t Type)
{
MODIFY_REG(LPUARTx->CR3, USART_CR3_WUS, Type);
}
/**
* @brief Return event type for Wake UP Interrupt Flag (WUS[1:0] bits)
* @rmtoll CR3 WUS LL_LPUART_GetWKUPType
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_WAKEUP_ON_ADDRESS
* @arg @ref LL_LPUART_WAKEUP_ON_STARTBIT
* @arg @ref LL_LPUART_WAKEUP_ON_RXNE
*/
__STATIC_INLINE uint32_t LL_LPUART_GetWKUPType(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR3, USART_CR3_WUS));
}
/**
* @brief Configure LPUART BRR register for achieving expected Baud Rate value.
*
* @note Compute and set LPUARTDIV value in BRR Register (full BRR content)
* according to used Peripheral Clock and expected Baud Rate values
* @note Peripheral clock and Baud Rate values provided as function parameters should be valid
* (Baud rate value != 0).
* @note Provided that LPUARTx_BRR must be > = 0x300 and LPUART_BRR is 20-bit,
* a care should be taken when generating high baud rates using high PeriphClk
* values. PeriphClk must be in the range [3 x BaudRate, 4096 x BaudRate].
* @rmtoll BRR BRR LL_LPUART_SetBaudRate
* @param LPUARTx LPUART Instance
* @param PeriphClk Peripheral Clock
@if USART_PRESC_PRESCALER
* @param PrescalerValue This parameter can be one of the following values:
* @arg @ref LL_LPUART_PRESCALER_DIV1
* @arg @ref LL_LPUART_PRESCALER_DIV2
* @arg @ref LL_LPUART_PRESCALER_DIV4
* @arg @ref LL_LPUART_PRESCALER_DIV6
* @arg @ref LL_LPUART_PRESCALER_DIV8
* @arg @ref LL_LPUART_PRESCALER_DIV10
* @arg @ref LL_LPUART_PRESCALER_DIV12
* @arg @ref LL_LPUART_PRESCALER_DIV16
* @arg @ref LL_LPUART_PRESCALER_DIV32
* @arg @ref LL_LPUART_PRESCALER_DIV64
* @arg @ref LL_LPUART_PRESCALER_DIV128
* @arg @ref LL_LPUART_PRESCALER_DIV256
@endif
* @param BaudRate Baud Rate
* @retval None
*/
#if defined(USART_PRESC_PRESCALER)
__STATIC_INLINE void LL_LPUART_SetBaudRate(USART_TypeDef *LPUARTx, uint32_t PeriphClk, uint32_t PrescalerValue,
uint32_t BaudRate)
#else
__STATIC_INLINE void LL_LPUART_SetBaudRate(USART_TypeDef *LPUARTx, uint32_t PeriphClk, uint32_t BaudRate)
#endif /* USART_PRESC_PRESCALER */
{
#if defined(USART_PRESC_PRESCALER)
if (BaudRate != 0U)
{
LPUARTx->BRR = __LL_LPUART_DIV(PeriphClk, PrescalerValue, BaudRate);
}
#else
if (BaudRate != 0U)
{
LPUARTx->BRR = __LL_LPUART_DIV(PeriphClk, BaudRate);
}
#endif /* USART_PRESC_PRESCALER */
}
/**
* @brief Return current Baud Rate value, according to LPUARTDIV present in BRR register
* (full BRR content), and to used Peripheral Clock values
* @note In case of non-initialized or invalid value stored in BRR register, value 0 will be returned.
* @rmtoll BRR BRR LL_LPUART_GetBaudRate
* @param LPUARTx LPUART Instance
* @param PeriphClk Peripheral Clock
@if USART_PRESC_PRESCALER
* @param PrescalerValue This parameter can be one of the following values:
* @arg @ref LL_LPUART_PRESCALER_DIV1
* @arg @ref LL_LPUART_PRESCALER_DIV2
* @arg @ref LL_LPUART_PRESCALER_DIV4
* @arg @ref LL_LPUART_PRESCALER_DIV6
* @arg @ref LL_LPUART_PRESCALER_DIV8
* @arg @ref LL_LPUART_PRESCALER_DIV10
* @arg @ref LL_LPUART_PRESCALER_DIV12
* @arg @ref LL_LPUART_PRESCALER_DIV16
* @arg @ref LL_LPUART_PRESCALER_DIV32
* @arg @ref LL_LPUART_PRESCALER_DIV64
* @arg @ref LL_LPUART_PRESCALER_DIV128
* @arg @ref LL_LPUART_PRESCALER_DIV256
@endif
* @retval Baud Rate
*/
#if defined(USART_PRESC_PRESCALER)
__STATIC_INLINE uint32_t LL_LPUART_GetBaudRate(const USART_TypeDef *LPUARTx, uint32_t PeriphClk, uint32_t PrescalerValue)
#else
__STATIC_INLINE uint32_t LL_LPUART_GetBaudRate(const USART_TypeDef *LPUARTx, uint32_t PeriphClk)
#endif /* USART_PRESC_PRESCALER */
{
uint32_t lpuartdiv;
uint32_t brrresult;
#if defined(USART_PRESC_PRESCALER)
uint32_t periphclkpresc = (uint32_t)(PeriphClk / (LPUART_PRESCALER_TAB[(uint16_t)PrescalerValue]));
#endif /* USART_PRESC_PRESCALER */
lpuartdiv = LPUARTx->BRR & LPUART_BRR_MASK;
if (lpuartdiv >= LPUART_BRR_MIN_VALUE)
{
#if defined(USART_PRESC_PRESCALER)
brrresult = (uint32_t)(((uint64_t)(periphclkpresc) * LPUART_LPUARTDIV_FREQ_MUL) / lpuartdiv);
#else
brrresult = (uint32_t)(((uint64_t)(PeriphClk) * LPUART_LPUARTDIV_FREQ_MUL) / lpuartdiv);
#endif /* USART_PRESC_PRESCALER */
}
else
{
brrresult = 0x0UL;
}
return (brrresult);
}
/**
* @}
*/
/** @defgroup LPUART_LL_EF_Configuration_HalfDuplex Configuration functions related to Half Duplex feature
* @{
*/
/**
* @brief Enable Single Wire Half-Duplex mode
* @rmtoll CR3 HDSEL LL_LPUART_EnableHalfDuplex
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableHalfDuplex(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->CR3, USART_CR3_HDSEL);
}
/**
* @brief Disable Single Wire Half-Duplex mode
* @rmtoll CR3 HDSEL LL_LPUART_DisableHalfDuplex
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableHalfDuplex(USART_TypeDef *LPUARTx)
{
CLEAR_BIT(LPUARTx->CR3, USART_CR3_HDSEL);
}
/**
* @brief Indicate if Single Wire Half-Duplex mode is enabled
* @rmtoll CR3 HDSEL LL_LPUART_IsEnabledHalfDuplex
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledHalfDuplex(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_HDSEL) == (USART_CR3_HDSEL)) ? 1UL : 0UL);
}
/**
* @}
*/
/** @defgroup LPUART_LL_EF_Configuration_DE Configuration functions related to Driver Enable feature
* @{
*/
/**
* @brief Set DEDT (Driver Enable De-Assertion Time), Time value expressed on 5 bits ([4:0] bits).
* @rmtoll CR1 DEDT LL_LPUART_SetDEDeassertionTime
* @param LPUARTx LPUART Instance
* @param Time Value between Min_Data=0 and Max_Data=31
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetDEDeassertionTime(USART_TypeDef *LPUARTx, uint32_t Time)
{
MODIFY_REG(LPUARTx->CR1, USART_CR1_DEDT, Time << USART_CR1_DEDT_Pos);
}
/**
* @brief Return DEDT (Driver Enable De-Assertion Time)
* @rmtoll CR1 DEDT LL_LPUART_GetDEDeassertionTime
* @param LPUARTx LPUART Instance
* @retval Time value expressed on 5 bits ([4:0] bits) : c
*/
__STATIC_INLINE uint32_t LL_LPUART_GetDEDeassertionTime(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_DEDT) >> USART_CR1_DEDT_Pos);
}
/**
* @brief Set DEAT (Driver Enable Assertion Time), Time value expressed on 5 bits ([4:0] bits).
* @rmtoll CR1 DEAT LL_LPUART_SetDEAssertionTime
* @param LPUARTx LPUART Instance
* @param Time Value between Min_Data=0 and Max_Data=31
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetDEAssertionTime(USART_TypeDef *LPUARTx, uint32_t Time)
{
MODIFY_REG(LPUARTx->CR1, USART_CR1_DEAT, Time << USART_CR1_DEAT_Pos);
}
/**
* @brief Return DEAT (Driver Enable Assertion Time)
* @rmtoll CR1 DEAT LL_LPUART_GetDEAssertionTime
* @param LPUARTx LPUART Instance
* @retval Time value expressed on 5 bits ([4:0] bits) : Time Value between Min_Data=0 and Max_Data=31
*/
__STATIC_INLINE uint32_t LL_LPUART_GetDEAssertionTime(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_DEAT) >> USART_CR1_DEAT_Pos);
}
/**
* @brief Enable Driver Enable (DE) Mode
* @rmtoll CR3 DEM LL_LPUART_EnableDEMode
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableDEMode(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->CR3, USART_CR3_DEM);
}
/**
* @brief Disable Driver Enable (DE) Mode
* @rmtoll CR3 DEM LL_LPUART_DisableDEMode
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableDEMode(USART_TypeDef *LPUARTx)
{
CLEAR_BIT(LPUARTx->CR3, USART_CR3_DEM);
}
/**
* @brief Indicate if Driver Enable (DE) Mode is enabled
* @rmtoll CR3 DEM LL_LPUART_IsEnabledDEMode
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledDEMode(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_DEM) == (USART_CR3_DEM)) ? 1UL : 0UL);
}
/**
* @brief Select Driver Enable Polarity
* @rmtoll CR3 DEP LL_LPUART_SetDESignalPolarity
* @param LPUARTx LPUART Instance
* @param Polarity This parameter can be one of the following values:
* @arg @ref LL_LPUART_DE_POLARITY_HIGH
* @arg @ref LL_LPUART_DE_POLARITY_LOW
* @retval None
*/
__STATIC_INLINE void LL_LPUART_SetDESignalPolarity(USART_TypeDef *LPUARTx, uint32_t Polarity)
{
MODIFY_REG(LPUARTx->CR3, USART_CR3_DEP, Polarity);
}
/**
* @brief Return Driver Enable Polarity
* @rmtoll CR3 DEP LL_LPUART_GetDESignalPolarity
* @param LPUARTx LPUART Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_LPUART_DE_POLARITY_HIGH
* @arg @ref LL_LPUART_DE_POLARITY_LOW
*/
__STATIC_INLINE uint32_t LL_LPUART_GetDESignalPolarity(const USART_TypeDef *LPUARTx)
{
return (uint32_t)(READ_BIT(LPUARTx->CR3, USART_CR3_DEP));
}
/**
* @}
*/
/** @defgroup LPUART_LL_EF_FLAG_Management FLAG_Management
* @{
*/
/**
* @brief Check if the LPUART Parity Error Flag is set or not
* @rmtoll ISR PE LL_LPUART_IsActiveFlag_PE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_PE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_PE) == (USART_ISR_PE)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Framing Error Flag is set or not
* @rmtoll ISR FE LL_LPUART_IsActiveFlag_FE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_FE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_FE) == (USART_ISR_FE)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Noise error detected Flag is set or not
* @rmtoll ISR NE LL_LPUART_IsActiveFlag_NE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_NE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_NE) == (USART_ISR_NE)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART OverRun Error Flag is set or not
* @rmtoll ISR ORE LL_LPUART_IsActiveFlag_ORE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_ORE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_ORE) == (USART_ISR_ORE)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART IDLE line detected Flag is set or not
* @rmtoll ISR IDLE LL_LPUART_IsActiveFlag_IDLE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_IDLE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_IDLE) == (USART_ISR_IDLE)) ? 1UL : 0UL);
}
#if defined(USART_CR1_FIFOEN)
/* Legacy define */
#define LL_LPUART_IsActiveFlag_RXNE LL_LPUART_IsActiveFlag_RXNE_RXFNE
/**
* @brief Check if the LPUART Read Data Register or LPUART RX FIFO Not Empty Flag is set or not
* @rmtoll ISR RXNE_RXFNE LL_LPUART_IsActiveFlag_RXNE_RXFNE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_RXNE_RXFNE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_RXNE_RXFNE) == (USART_ISR_RXNE_RXFNE)) ? 1UL : 0UL);
}
#else
/**
* @brief Check if the LPUART Read Data Register Not Empty Flag is set or not
* @rmtoll ISR RXNE LL_LPUART_IsActiveFlag_RXNE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_RXNE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_RXNE) == (USART_ISR_RXNE)) ? 1UL : 0UL);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Check if the LPUART Transmission Complete Flag is set or not
* @rmtoll ISR TC LL_LPUART_IsActiveFlag_TC
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_TC(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_TC) == (USART_ISR_TC)) ? 1UL : 0UL);
}
#if defined(USART_CR1_FIFOEN)
/* Legacy define */
#define LL_LPUART_IsActiveFlag_TXE LL_LPUART_IsActiveFlag_TXE_TXFNF
/**
* @brief Check if the LPUART Transmit Data Register Empty or LPUART TX FIFO Not Full Flag is set or not
* @rmtoll ISR TXE_TXFNF LL_LPUART_IsActiveFlag_TXE_TXFNF
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_TXE_TXFNF(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_TXE_TXFNF) == (USART_ISR_TXE_TXFNF)) ? 1UL : 0UL);
}
#else
/**
* @brief Check if the LPUART Transmit Data Register Empty Flag is set or not
* @rmtoll ISR TXE LL_LPUART_IsActiveFlag_TXE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_TXE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_TXE) == (USART_ISR_TXE)) ? 1UL : 0UL);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Check if the LPUART CTS interrupt Flag is set or not
* @rmtoll ISR CTSIF LL_LPUART_IsActiveFlag_nCTS
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_nCTS(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_CTSIF) == (USART_ISR_CTSIF)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART CTS Flag is set or not
* @rmtoll ISR CTS LL_LPUART_IsActiveFlag_CTS
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_CTS(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_CTS) == (USART_ISR_CTS)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Busy Flag is set or not
* @rmtoll ISR BUSY LL_LPUART_IsActiveFlag_BUSY
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_BUSY(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_BUSY) == (USART_ISR_BUSY)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Character Match Flag is set or not
* @rmtoll ISR CMF LL_LPUART_IsActiveFlag_CM
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_CM(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_CMF) == (USART_ISR_CMF)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Send Break Flag is set or not
* @rmtoll ISR SBKF LL_LPUART_IsActiveFlag_SBK
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_SBK(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_SBKF) == (USART_ISR_SBKF)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Receive Wake Up from mute mode Flag is set or not
* @rmtoll ISR RWU LL_LPUART_IsActiveFlag_RWU
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_RWU(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_RWU) == (USART_ISR_RWU)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Wake Up from stop mode Flag is set or not
* @rmtoll ISR WUF LL_LPUART_IsActiveFlag_WKUP
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_WKUP(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_WUF) == (USART_ISR_WUF)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Transmit Enable Acknowledge Flag is set or not
* @rmtoll ISR TEACK LL_LPUART_IsActiveFlag_TEACK
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_TEACK(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_TEACK) == (USART_ISR_TEACK)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Receive Enable Acknowledge Flag is set or not
* @rmtoll ISR REACK LL_LPUART_IsActiveFlag_REACK
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_REACK(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_REACK) == (USART_ISR_REACK)) ? 1UL : 0UL);
}
#if defined(USART_CR1_FIFOEN)
/**
* @brief Check if the LPUART TX FIFO Empty Flag is set or not
* @rmtoll ISR TXFE LL_LPUART_IsActiveFlag_TXFE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_TXFE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_TXFE) == (USART_ISR_TXFE)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART RX FIFO Full Flag is set or not
* @rmtoll ISR RXFF LL_LPUART_IsActiveFlag_RXFF
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_RXFF(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_RXFF) == (USART_ISR_RXFF)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART TX FIFO Threshold Flag is set or not
* @rmtoll ISR TXFT LL_LPUART_IsActiveFlag_TXFT
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_TXFT(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_TXFT) == (USART_ISR_TXFT)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART RX FIFO Threshold Flag is set or not
* @rmtoll ISR RXFT LL_LPUART_IsActiveFlag_RXFT
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsActiveFlag_RXFT(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->ISR, USART_ISR_RXFT) == (USART_ISR_RXFT)) ? 1UL : 0UL);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Clear Parity Error Flag
* @rmtoll ICR PECF LL_LPUART_ClearFlag_PE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ClearFlag_PE(USART_TypeDef *LPUARTx)
{
WRITE_REG(LPUARTx->ICR, USART_ICR_PECF);
}
/**
* @brief Clear Framing Error Flag
* @rmtoll ICR FECF LL_LPUART_ClearFlag_FE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ClearFlag_FE(USART_TypeDef *LPUARTx)
{
WRITE_REG(LPUARTx->ICR, USART_ICR_FECF);
}
/**
* @brief Clear Noise detected Flag
* @rmtoll ICR NECF LL_LPUART_ClearFlag_NE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ClearFlag_NE(USART_TypeDef *LPUARTx)
{
WRITE_REG(LPUARTx->ICR, USART_ICR_NECF);
}
/**
* @brief Clear OverRun Error Flag
* @rmtoll ICR ORECF LL_LPUART_ClearFlag_ORE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ClearFlag_ORE(USART_TypeDef *LPUARTx)
{
WRITE_REG(LPUARTx->ICR, USART_ICR_ORECF);
}
/**
* @brief Clear IDLE line detected Flag
* @rmtoll ICR IDLECF LL_LPUART_ClearFlag_IDLE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ClearFlag_IDLE(USART_TypeDef *LPUARTx)
{
WRITE_REG(LPUARTx->ICR, USART_ICR_IDLECF);
}
/**
* @brief Clear Transmission Complete Flag
* @rmtoll ICR TCCF LL_LPUART_ClearFlag_TC
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ClearFlag_TC(USART_TypeDef *LPUARTx)
{
WRITE_REG(LPUARTx->ICR, USART_ICR_TCCF);
}
/**
* @brief Clear CTS Interrupt Flag
* @rmtoll ICR CTSCF LL_LPUART_ClearFlag_nCTS
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ClearFlag_nCTS(USART_TypeDef *LPUARTx)
{
WRITE_REG(LPUARTx->ICR, USART_ICR_CTSCF);
}
/**
* @brief Clear Character Match Flag
* @rmtoll ICR CMCF LL_LPUART_ClearFlag_CM
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ClearFlag_CM(USART_TypeDef *LPUARTx)
{
WRITE_REG(LPUARTx->ICR, USART_ICR_CMCF);
}
/**
* @brief Clear Wake Up from stop mode Flag
* @rmtoll ICR WUCF LL_LPUART_ClearFlag_WKUP
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_ClearFlag_WKUP(USART_TypeDef *LPUARTx)
{
WRITE_REG(LPUARTx->ICR, USART_ICR_WUCF);
}
/**
* @}
*/
/** @defgroup LPUART_LL_EF_IT_Management IT_Management
* @{
*/
/**
* @brief Enable IDLE Interrupt
* @rmtoll CR1 IDLEIE LL_LPUART_EnableIT_IDLE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_IDLE(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_IDLEIE);
}
#if defined(USART_CR1_FIFOEN)
/* Legacy define */
#define LL_LPUART_EnableIT_RXNE LL_LPUART_EnableIT_RXNE_RXFNE
/**
* @brief Enable RX Not Empty and RX FIFO Not Empty Interrupt
* @rmtoll CR1 RXNEIE_RXFNEIE LL_LPUART_EnableIT_RXNE_RXFNE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_RXNE_RXFNE(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_RXNEIE_RXFNEIE);
}
#else
/**
* @brief Enable RX Not Empty Interrupt
* @rmtoll CR1 RXNEIE LL_LPUART_EnableIT_RXNE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_RXNE(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_RXNEIE);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Enable Transmission Complete Interrupt
* @rmtoll CR1 TCIE LL_LPUART_EnableIT_TC
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_TC(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_TCIE);
}
#if defined(USART_CR1_FIFOEN)
/* Legacy define */
#define LL_LPUART_EnableIT_TXE LL_LPUART_EnableIT_TXE_TXFNF
/**
* @brief Enable TX Empty and TX FIFO Not Full Interrupt
* @rmtoll CR1 TXEIE_TXFNFIE LL_LPUART_EnableIT_TXE_TXFNF
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_TXE_TXFNF(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_TXEIE_TXFNFIE);
}
#else
/**
* @brief Enable TX Empty Interrupt
* @rmtoll CR1 TXEIE LL_LPUART_EnableIT_TXE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_TXE(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_TXEIE);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Enable Parity Error Interrupt
* @rmtoll CR1 PEIE LL_LPUART_EnableIT_PE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_PE(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_PEIE);
}
/**
* @brief Enable Character Match Interrupt
* @rmtoll CR1 CMIE LL_LPUART_EnableIT_CM
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_CM(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_CMIE);
}
#if defined(USART_CR1_FIFOEN)
/**
* @brief Enable TX FIFO Empty Interrupt
* @rmtoll CR1 TXFEIE LL_LPUART_EnableIT_TXFE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_TXFE(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_TXFEIE);
}
/**
* @brief Enable RX FIFO Full Interrupt
* @rmtoll CR1 RXFFIE LL_LPUART_EnableIT_RXFF
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_RXFF(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR1, USART_CR1_RXFFIE);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Enable Error Interrupt
* @note When set, Error Interrupt Enable Bit is enabling interrupt generation in case of a framing
* error, overrun error or noise flag (FE=1 or ORE=1 or NF=1 in the LPUARTx_ISR register).
* - 0: Interrupt is inhibited
* - 1: An interrupt is generated when FE=1 or ORE=1 or NF=1 in the LPUARTx_ISR register.
* @rmtoll CR3 EIE LL_LPUART_EnableIT_ERROR
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_ERROR(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR3, USART_CR3_EIE);
}
/**
* @brief Enable CTS Interrupt
* @rmtoll CR3 CTSIE LL_LPUART_EnableIT_CTS
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_CTS(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR3, USART_CR3_CTSIE);
}
/**
* @brief Enable Wake Up from Stop Mode Interrupt
* @rmtoll CR3 WUFIE LL_LPUART_EnableIT_WKUP
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_WKUP(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR3, USART_CR3_WUFIE);
}
#if defined(USART_CR1_FIFOEN)
/**
* @brief Enable TX FIFO Threshold Interrupt
* @rmtoll CR3 TXFTIE LL_LPUART_EnableIT_TXFT
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_TXFT(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR3, USART_CR3_TXFTIE);
}
/**
* @brief Enable RX FIFO Threshold Interrupt
* @rmtoll CR3 RXFTIE LL_LPUART_EnableIT_RXFT
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableIT_RXFT(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR3, USART_CR3_RXFTIE);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Disable IDLE Interrupt
* @rmtoll CR1 IDLEIE LL_LPUART_DisableIT_IDLE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_IDLE(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_IDLEIE);
}
#if defined(USART_CR1_FIFOEN)
/* Legacy define */
#define LL_LPUART_DisableIT_RXNE LL_LPUART_DisableIT_RXNE_RXFNE
/**
* @brief Disable RX Not Empty and RX FIFO Not Empty Interrupt
* @rmtoll CR1 RXNEIE_RXFNEIE LL_LPUART_DisableIT_RXNE_RXFNE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_RXNE_RXFNE(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_RXNEIE_RXFNEIE);
}
#else
/**
* @brief Disable RX Not Empty Interrupt
* @rmtoll CR1 RXNEIE LL_LPUART_DisableIT_RXNE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_RXNE(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_RXNEIE);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Disable Transmission Complete Interrupt
* @rmtoll CR1 TCIE LL_LPUART_DisableIT_TC
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_TC(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_TCIE);
}
#if defined(USART_CR1_FIFOEN)
/* Legacy define */
#define LL_LPUART_DisableIT_TXE LL_LPUART_DisableIT_TXE_TXFNF
/**
* @brief Disable TX Empty and TX FIFO Not Full Interrupt
* @rmtoll CR1 TXEIE_TXFNFIE LL_LPUART_DisableIT_TXE_TXFNF
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_TXE_TXFNF(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_TXEIE_TXFNFIE);
}
#else
/**
* @brief Disable TX Empty Interrupt
* @rmtoll CR1 TXEIE LL_LPUART_DisableIT_TXE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_TXE(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_TXEIE);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Disable Parity Error Interrupt
* @rmtoll CR1 PEIE LL_LPUART_DisableIT_PE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_PE(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_PEIE);
}
/**
* @brief Disable Character Match Interrupt
* @rmtoll CR1 CMIE LL_LPUART_DisableIT_CM
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_CM(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_CMIE);
}
#if defined(USART_CR1_FIFOEN)
/**
* @brief Disable TX FIFO Empty Interrupt
* @rmtoll CR1 TXFEIE LL_LPUART_DisableIT_TXFE
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_TXFE(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_TXFEIE);
}
/**
* @brief Disable RX FIFO Full Interrupt
* @rmtoll CR1 RXFFIE LL_LPUART_DisableIT_RXFF
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_RXFF(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR1, USART_CR1_RXFFIE);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Disable Error Interrupt
* @note When set, Error Interrupt Enable Bit is enabling interrupt generation in case of a framing
* error, overrun error or noise flag (FE=1 or ORE=1 or NF=1 in the LPUARTx_ISR register).
* - 0: Interrupt is inhibited
* - 1: An interrupt is generated when FE=1 or ORE=1 or NF=1 in the LPUARTx_ISR register.
* @rmtoll CR3 EIE LL_LPUART_DisableIT_ERROR
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_ERROR(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR3, USART_CR3_EIE);
}
/**
* @brief Disable CTS Interrupt
* @rmtoll CR3 CTSIE LL_LPUART_DisableIT_CTS
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_CTS(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR3, USART_CR3_CTSIE);
}
/**
* @brief Disable Wake Up from Stop Mode Interrupt
* @rmtoll CR3 WUFIE LL_LPUART_DisableIT_WKUP
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_WKUP(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR3, USART_CR3_WUFIE);
}
#if defined(USART_CR1_FIFOEN)
/**
* @brief Disable TX FIFO Threshold Interrupt
* @rmtoll CR3 TXFTIE LL_LPUART_DisableIT_TXFT
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_TXFT(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR3, USART_CR3_TXFTIE);
}
/**
* @brief Disable RX FIFO Threshold Interrupt
* @rmtoll CR3 RXFTIE LL_LPUART_DisableIT_RXFT
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableIT_RXFT(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR3, USART_CR3_RXFTIE);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Check if the LPUART IDLE Interrupt source is enabled or disabled.
* @rmtoll CR1 IDLEIE LL_LPUART_IsEnabledIT_IDLE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_IDLE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_IDLEIE) == (USART_CR1_IDLEIE)) ? 1UL : 0UL);
}
#if defined(USART_CR1_FIFOEN)
/* Legacy define */
#define LL_LPUART_IsEnabledIT_RXNE LL_LPUART_IsEnabledIT_RXNE_RXFNE
/**
* @brief Check if the LPUART RX Not Empty and LPUART RX FIFO Not Empty Interrupt is enabled or disabled.
* @rmtoll CR1 RXNEIE_RXFNEIE LL_LPUART_IsEnabledIT_RXNE_RXFNE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_RXNE_RXFNE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_RXNEIE_RXFNEIE) == (USART_CR1_RXNEIE_RXFNEIE)) ? 1UL : 0UL);
}
#else
/**
* @brief Check if the LPUART RX Not Empty Interrupt is enabled or disabled.
* @rmtoll CR1 RXNEIE LL_LPUART_IsEnabledIT_RXNE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_RXNE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_RXNEIE) == (USART_CR1_RXNEIE)) ? 1UL : 0UL);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Check if the LPUART Transmission Complete Interrupt is enabled or disabled.
* @rmtoll CR1 TCIE LL_LPUART_IsEnabledIT_TC
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_TC(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_TCIE) == (USART_CR1_TCIE)) ? 1UL : 0UL);
}
#if defined(USART_CR1_FIFOEN)
/* Legacy define */
#define LL_LPUART_IsEnabledIT_TXE LL_LPUART_IsEnabledIT_TXE_TXFNF
/**
* @brief Check if the LPUART TX Empty and LPUART TX FIFO Not Full Interrupt is enabled or disabled
* @rmtoll CR1 TXEIE_TXFNFIE LL_LPUART_IsEnabledIT_TXE_TXFNF
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_TXE_TXFNF(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_TXEIE_TXFNFIE) == (USART_CR1_TXEIE_TXFNFIE)) ? 1UL : 0UL);
}
#else
/**
* @brief Check if the LPUART TX Empty Interrupt is enabled or disabled.
* @rmtoll CR1 TXEIE LL_LPUART_IsEnabledIT_TXE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_TXE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_TXEIE) == (USART_CR1_TXEIE)) ? 1UL : 0UL);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Check if the LPUART Parity Error Interrupt is enabled or disabled.
* @rmtoll CR1 PEIE LL_LPUART_IsEnabledIT_PE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_PE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_PEIE) == (USART_CR1_PEIE)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Character Match Interrupt is enabled or disabled.
* @rmtoll CR1 CMIE LL_LPUART_IsEnabledIT_CM
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_CM(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_CMIE) == (USART_CR1_CMIE)) ? 1UL : 0UL);
}
#if defined(USART_CR1_FIFOEN)
/**
* @brief Check if the LPUART TX FIFO Empty Interrupt is enabled or disabled
* @rmtoll CR1 TXFEIE LL_LPUART_IsEnabledIT_TXFE
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_TXFE(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_TXFEIE) == (USART_CR1_TXFEIE)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART RX FIFO Full Interrupt is enabled or disabled
* @rmtoll CR1 RXFFIE LL_LPUART_IsEnabledIT_RXFF
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_RXFF(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR1, USART_CR1_RXFFIE) == (USART_CR1_RXFFIE)) ? 1UL : 0UL);
}
#endif /* USART_CR1_FIFOEN */
/**
* @brief Check if the LPUART Error Interrupt is enabled or disabled.
* @rmtoll CR3 EIE LL_LPUART_IsEnabledIT_ERROR
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_ERROR(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_EIE) == (USART_CR3_EIE)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART CTS Interrupt is enabled or disabled.
* @rmtoll CR3 CTSIE LL_LPUART_IsEnabledIT_CTS
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_CTS(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_CTSIE) == (USART_CR3_CTSIE)) ? 1UL : 0UL);
}
/**
* @brief Check if the LPUART Wake Up from Stop Mode Interrupt is enabled or disabled.
* @rmtoll CR3 WUFIE LL_LPUART_IsEnabledIT_WKUP
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_WKUP(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_WUFIE) == (USART_CR3_WUFIE)) ? 1UL : 0UL);
}
#if defined(USART_CR1_FIFOEN)
/**
* @brief Check if LPUART TX FIFO Threshold Interrupt is enabled or disabled
* @rmtoll CR3 TXFTIE LL_LPUART_IsEnabledIT_TXFT
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_TXFT(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_TXFTIE) == (USART_CR3_TXFTIE)) ? 1UL : 0UL);
}
/**
* @brief Check if LPUART RX FIFO Threshold Interrupt is enabled or disabled
* @rmtoll CR3 RXFTIE LL_LPUART_IsEnabledIT_RXFT
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledIT_RXFT(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_RXFTIE) == (USART_CR3_RXFTIE)) ? 1UL : 0UL);
}
#endif /* USART_CR1_FIFOEN */
/**
* @}
*/
/** @defgroup LPUART_LL_EF_DMA_Management DMA_Management
* @{
*/
/**
* @brief Enable DMA Mode for reception
* @rmtoll CR3 DMAR LL_LPUART_EnableDMAReq_RX
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableDMAReq_RX(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR3, USART_CR3_DMAR);
}
/**
* @brief Disable DMA Mode for reception
* @rmtoll CR3 DMAR LL_LPUART_DisableDMAReq_RX
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableDMAReq_RX(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR3, USART_CR3_DMAR);
}
/**
* @brief Check if DMA Mode is enabled for reception
* @rmtoll CR3 DMAR LL_LPUART_IsEnabledDMAReq_RX
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledDMAReq_RX(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_DMAR) == (USART_CR3_DMAR)) ? 1UL : 0UL);
}
/**
* @brief Enable DMA Mode for transmission
* @rmtoll CR3 DMAT LL_LPUART_EnableDMAReq_TX
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableDMAReq_TX(USART_TypeDef *LPUARTx)
{
ATOMIC_SET_BIT(LPUARTx->CR3, USART_CR3_DMAT);
}
/**
* @brief Disable DMA Mode for transmission
* @rmtoll CR3 DMAT LL_LPUART_DisableDMAReq_TX
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableDMAReq_TX(USART_TypeDef *LPUARTx)
{
ATOMIC_CLEAR_BIT(LPUARTx->CR3, USART_CR3_DMAT);
}
/**
* @brief Check if DMA Mode is enabled for transmission
* @rmtoll CR3 DMAT LL_LPUART_IsEnabledDMAReq_TX
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledDMAReq_TX(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_DMAT) == (USART_CR3_DMAT)) ? 1UL : 0UL);
}
/**
* @brief Enable DMA Disabling on Reception Error
* @rmtoll CR3 DDRE LL_LPUART_EnableDMADeactOnRxErr
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_EnableDMADeactOnRxErr(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->CR3, USART_CR3_DDRE);
}
/**
* @brief Disable DMA Disabling on Reception Error
* @rmtoll CR3 DDRE LL_LPUART_DisableDMADeactOnRxErr
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_DisableDMADeactOnRxErr(USART_TypeDef *LPUARTx)
{
CLEAR_BIT(LPUARTx->CR3, USART_CR3_DDRE);
}
/**
* @brief Indicate if DMA Disabling on Reception Error is disabled
* @rmtoll CR3 DDRE LL_LPUART_IsEnabledDMADeactOnRxErr
* @param LPUARTx LPUART Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_LPUART_IsEnabledDMADeactOnRxErr(const USART_TypeDef *LPUARTx)
{
return ((READ_BIT(LPUARTx->CR3, USART_CR3_DDRE) == (USART_CR3_DDRE)) ? 1UL : 0UL);
}
/**
* @brief Get the LPUART data register address used for DMA transfer
* @rmtoll RDR RDR LL_LPUART_DMA_GetRegAddr\n
* @rmtoll TDR TDR LL_LPUART_DMA_GetRegAddr
* @param LPUARTx LPUART Instance
* @param Direction This parameter can be one of the following values:
* @arg @ref LL_LPUART_DMA_REG_DATA_TRANSMIT
* @arg @ref LL_LPUART_DMA_REG_DATA_RECEIVE
* @retval Address of data register
*/
__STATIC_INLINE uint32_t LL_LPUART_DMA_GetRegAddr(const USART_TypeDef *LPUARTx, uint32_t Direction)
{
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;
}
/**
* @}
*/
/** @defgroup LPUART_LL_EF_Data_Management Data_Management
* @{
*/
/**
* @brief Read Receiver Data register (Receive Data value, 8 bits)
* @rmtoll RDR RDR LL_LPUART_ReceiveData8
* @param LPUARTx LPUART Instance
* @retval Time Value between Min_Data=0x00 and Max_Data=0xFF
*/
__STATIC_INLINE uint8_t LL_LPUART_ReceiveData8(const USART_TypeDef *LPUARTx)
{
return (uint8_t)(READ_BIT(LPUARTx->RDR, USART_RDR_RDR) & 0xFFU);
}
/**
* @brief Read Receiver Data register (Receive Data value, 9 bits)
* @rmtoll RDR RDR LL_LPUART_ReceiveData9
* @param LPUARTx LPUART Instance
* @retval Time Value between Min_Data=0x00 and Max_Data=0x1FF
*/
__STATIC_INLINE uint16_t LL_LPUART_ReceiveData9(const USART_TypeDef *LPUARTx)
{
return (uint16_t)(READ_BIT(LPUARTx->RDR, USART_RDR_RDR));
}
/**
* @brief Write in Transmitter Data Register (Transmit Data value, 8 bits)
* @rmtoll TDR TDR LL_LPUART_TransmitData8
* @param LPUARTx LPUART Instance
* @param Value between Min_Data=0x00 and Max_Data=0xFF
* @retval None
*/
__STATIC_INLINE void LL_LPUART_TransmitData8(USART_TypeDef *LPUARTx, uint8_t Value)
{
LPUARTx->TDR = Value;
}
/**
* @brief Write in Transmitter Data Register (Transmit Data value, 9 bits)
* @rmtoll TDR TDR LL_LPUART_TransmitData9
* @param LPUARTx LPUART Instance
* @param Value between Min_Data=0x00 and Max_Data=0x1FF
* @retval None
*/
__STATIC_INLINE void LL_LPUART_TransmitData9(USART_TypeDef *LPUARTx, uint16_t Value)
{
LPUARTx->TDR = Value & 0x1FFUL;
}
/**
* @}
*/
/** @defgroup LPUART_LL_EF_Execution Execution
* @{
*/
/**
* @brief Request Break sending
* @rmtoll RQR SBKRQ LL_LPUART_RequestBreakSending
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_RequestBreakSending(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->RQR, (uint16_t)USART_RQR_SBKRQ);
}
/**
* @brief Put LPUART in mute mode and set the RWU flag
* @rmtoll RQR MMRQ LL_LPUART_RequestEnterMuteMode
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_RequestEnterMuteMode(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->RQR, (uint16_t)USART_RQR_MMRQ);
}
/**
@if USART_CR1_FIFOEN
* @brief Request a Receive Data and FIFO flush
* @note Allows to discard the received data without reading them, and avoid an overrun
* condition.
@else
* @brief Request a Receive Data flush
@endif
* @rmtoll RQR RXFRQ LL_LPUART_RequestRxDataFlush
* @param LPUARTx LPUART Instance
* @retval None
*/
__STATIC_INLINE void LL_LPUART_RequestRxDataFlush(USART_TypeDef *LPUARTx)
{
SET_BIT(LPUARTx->RQR, (uint16_t)USART_RQR_RXFRQ);
}
/**
* @}
*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup LPUART_LL_EF_Init Initialization and de-initialization functions
* @{
*/
ErrorStatus LL_LPUART_DeInit(const USART_TypeDef *LPUARTx);
ErrorStatus LL_LPUART_Init(USART_TypeDef *LPUARTx, const LL_LPUART_InitTypeDef *LPUART_InitStruct);
void LL_LPUART_StructInit(LL_LPUART_InitTypeDef *LPUART_InitStruct);
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/**
* @}
*/
/**
* @}
*/
#endif /* LPUART1 */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32L4xx_LL_LPUART_H */