| /** |
| ****************************************************************************** |
| * @file stm32l4xx_hal_usart_ex.h |
| * @author MCD Application Team |
| * @brief Header file of USART HAL Extended module. |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Define to prevent recursive inclusion -------------------------------------*/ |
| #ifndef __STM32L4xx_HAL_USART_EX_H |
| #define __STM32L4xx_HAL_USART_EX_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l4xx_hal_def.h" |
| |
| /** @addtogroup STM32L4xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @addtogroup USARTEx |
| * @{ |
| */ |
| |
| /* Exported types ------------------------------------------------------------*/ |
| /* Exported constants --------------------------------------------------------*/ |
| /** @defgroup USARTEx_Exported_Constants USARTEx Exported Constants |
| * @{ |
| */ |
| |
| /** @defgroup USARTEx_Word_Length USARTEx Word Length |
| * @{ |
| */ |
| #define USART_WORDLENGTH_7B ((uint32_t)USART_CR1_M1) /*!< 7-bit long USART frame */ |
| #define USART_WORDLENGTH_8B 0x00000000U /*!< 8-bit long USART frame */ |
| #define USART_WORDLENGTH_9B ((uint32_t)USART_CR1_M0) /*!< 9-bit long USART frame */ |
| /** |
| * @} |
| */ |
| |
| #if defined(USART_CR2_SLVEN) |
| /** @defgroup USARTEx_Slave_Select_management USARTEx Slave Select Management |
| * @{ |
| */ |
| #define USART_NSS_HARD 0x00000000U /*!< SPI slave selection depends on NSS input pin */ |
| #define USART_NSS_SOFT USART_CR2_DIS_NSS /*!< SPI slave is always selected and NSS input pin is ignored */ |
| /** |
| * @} |
| */ |
| #endif |
| |
| #if defined(USART_CR1_FIFOEN) |
| /** @defgroup USARTEx_TXFIFO_threshold_level USARTEx TXFIFO threshold level |
| * @brief USART TXFIFO level |
| * @{ |
| */ |
| #define USART_TXFIFO_THRESHOLD_1_8 0x00000000U /*!< TXFIFO reaches 1/8 of its depth */ |
| #define USART_TXFIFO_THRESHOLD_1_4 USART_CR3_TXFTCFG_0 /*!< TXFIFO reaches 1/4 of its depth */ |
| #define USART_TXFIFO_THRESHOLD_1_2 USART_CR3_TXFTCFG_1 /*!< TXFIFO reaches 1/2 of its depth */ |
| #define USART_TXFIFO_THRESHOLD_3_4 (USART_CR3_TXFTCFG_0|USART_CR3_TXFTCFG_1) /*!< TXFIFO reaches 3/4 of its depth */ |
| #define USART_TXFIFO_THRESHOLD_7_8 USART_CR3_TXFTCFG_2 /*!< TXFIFO reaches 7/8 of its depth */ |
| #define USART_TXFIFO_THRESHOLD_8_8 (USART_CR3_TXFTCFG_2|USART_CR3_TXFTCFG_0) /*!< TXFIFO becomes empty */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup USARTEx_RXFIFO_threshold_level USARTEx RXFIFO threshold level |
| * @brief USART RXFIFO level |
| * @{ |
| */ |
| #define USART_RXFIFO_THRESHOLD_1_8 0x00000000U /*!< RXFIFO FIFO reaches 1/8 of its depth */ |
| #define USART_RXFIFO_THRESHOLD_1_4 USART_CR3_RXFTCFG_0 /*!< RXFIFO FIFO reaches 1/4 of its depth */ |
| #define USART_RXFIFO_THRESHOLD_1_2 USART_CR3_RXFTCFG_1 /*!< RXFIFO FIFO reaches 1/2 of its depth */ |
| #define USART_RXFIFO_THRESHOLD_3_4 (USART_CR3_RXFTCFG_0|USART_CR3_RXFTCFG_1) /*!< RXFIFO FIFO reaches 3/4 of its depth */ |
| #define USART_RXFIFO_THRESHOLD_7_8 USART_CR3_RXFTCFG_2 /*!< RXFIFO FIFO reaches 7/8 of its depth */ |
| #define USART_RXFIFO_THRESHOLD_8_8 (USART_CR3_RXFTCFG_2|USART_CR3_RXFTCFG_0) /*!< RXFIFO FIFO becomes full */ |
| /** |
| * @} |
| */ |
| #endif |
| |
| /** |
| * @} |
| */ |
| |
| /* Private constants ---------------------------------------------------------*/ |
| /** @defgroup USARTEx_Private_Constants USARTEx Private Constants |
| * @{ |
| */ |
| #if defined(USART_CR2_SLVEN) |
| /** @defgroup USARTEx_Slave_Mode USARTEx Synchronous Slave mode |
| * @{ |
| */ |
| #define USART_SLAVEMODE_DISABLE 0x00000000U /*!< USART SPI Slave Mode Enable */ |
| #define USART_SLAVEMODE_ENABLE USART_CR2_SLVEN /*!< USART SPI Slave Mode Disable */ |
| /** |
| * @} |
| */ |
| #endif |
| |
| #if defined(USART_CR1_FIFOEN) |
| /** @defgroup USARTEx_FIFO_mode USARTEx FIFO mode |
| * @{ |
| */ |
| #define USART_FIFOMODE_DISABLE 0x00000000U /*!< FIFO mode disable */ |
| #define USART_FIFOMODE_ENABLE USART_CR1_FIFOEN /*!< FIFO mode enable */ |
| /** |
| * @} |
| */ |
| #endif |
| /** |
| * @} |
| */ |
| |
| /* Private macros ------------------------------------------------------------*/ |
| /** @defgroup USARTEx_Private_Macros USARTEx Private Macros |
| * @{ |
| */ |
| |
| /** @brief Report the USART clock source. |
| * @param __HANDLE__: specifies the USART Handle. |
| * @param __CLOCKSOURCE__: output variable. |
| * @retval the USART clocking source, written in __CLOCKSOURCE__. |
| */ |
| #if defined (STM32L432xx) || defined (STM32L442xx) |
| #define USART_GETCLOCKSOURCE(__HANDLE__,__CLOCKSOURCE__) \ |
| do { \ |
| if((__HANDLE__)->Instance == USART1) \ |
| { \ |
| switch(__HAL_RCC_GET_USART1_SOURCE()) \ |
| { \ |
| case RCC_USART1CLKSOURCE_PCLK2: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK2; \ |
| break; \ |
| case RCC_USART1CLKSOURCE_HSI: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \ |
| break; \ |
| case RCC_USART1CLKSOURCE_SYSCLK: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \ |
| break; \ |
| case RCC_USART1CLKSOURCE_LSE: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \ |
| break; \ |
| default: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_UNDEFINED; \ |
| break; \ |
| } \ |
| } \ |
| else if((__HANDLE__)->Instance == USART2) \ |
| { \ |
| switch(__HAL_RCC_GET_USART2_SOURCE()) \ |
| { \ |
| case RCC_USART2CLKSOURCE_PCLK1: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK1; \ |
| break; \ |
| case RCC_USART2CLKSOURCE_HSI: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \ |
| break; \ |
| case RCC_USART2CLKSOURCE_SYSCLK: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \ |
| break; \ |
| case RCC_USART2CLKSOURCE_LSE: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \ |
| break; \ |
| default: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_UNDEFINED; \ |
| break; \ |
| } \ |
| } \ |
| } while(0) |
| #else |
| #define USART_GETCLOCKSOURCE(__HANDLE__,__CLOCKSOURCE__) \ |
| do { \ |
| if((__HANDLE__)->Instance == USART1) \ |
| { \ |
| switch(__HAL_RCC_GET_USART1_SOURCE()) \ |
| { \ |
| case RCC_USART1CLKSOURCE_PCLK2: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK2; \ |
| break; \ |
| case RCC_USART1CLKSOURCE_HSI: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \ |
| break; \ |
| case RCC_USART1CLKSOURCE_SYSCLK: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \ |
| break; \ |
| case RCC_USART1CLKSOURCE_LSE: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \ |
| break; \ |
| default: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_UNDEFINED; \ |
| break; \ |
| } \ |
| } \ |
| else if((__HANDLE__)->Instance == USART2) \ |
| { \ |
| switch(__HAL_RCC_GET_USART2_SOURCE()) \ |
| { \ |
| case RCC_USART2CLKSOURCE_PCLK1: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK1; \ |
| break; \ |
| case RCC_USART2CLKSOURCE_HSI: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \ |
| break; \ |
| case RCC_USART2CLKSOURCE_SYSCLK: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \ |
| break; \ |
| case RCC_USART2CLKSOURCE_LSE: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \ |
| break; \ |
| default: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_UNDEFINED; \ |
| break; \ |
| } \ |
| } \ |
| else if((__HANDLE__)->Instance == USART3) \ |
| { \ |
| switch(__HAL_RCC_GET_USART3_SOURCE()) \ |
| { \ |
| case RCC_USART3CLKSOURCE_PCLK1: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK1; \ |
| break; \ |
| case RCC_USART3CLKSOURCE_HSI: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \ |
| break; \ |
| case RCC_USART3CLKSOURCE_SYSCLK: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \ |
| break; \ |
| case RCC_USART3CLKSOURCE_LSE: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \ |
| break; \ |
| default: \ |
| (__CLOCKSOURCE__) = USART_CLOCKSOURCE_UNDEFINED; \ |
| break; \ |
| } \ |
| } \ |
| } while(0) |
| #endif /* STM32L432xx || STM32L442xx */ |
| |
| /** @brief Compute the USART mask to apply to retrieve the received data |
| * according to the word length and to the parity bits activation. |
| * @note If PCE = 1, the parity bit is not included in the data extracted |
| * by the reception API(). |
| * This masking operation is not carried out in the case of |
| * DMA transfers. |
| * @param __HANDLE__ specifies the USART Handle. |
| * @retval None, the mask to apply to USART RDR register is stored in (__HANDLE__)->Mask field. |
| */ |
| #define USART_MASK_COMPUTATION(__HANDLE__) \ |
| do { \ |
| if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_9B) \ |
| { \ |
| if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \ |
| { \ |
| (__HANDLE__)->Mask = 0x01FF ; \ |
| } \ |
| else \ |
| { \ |
| (__HANDLE__)->Mask = 0x00FF ; \ |
| } \ |
| } \ |
| else if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_8B) \ |
| { \ |
| if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \ |
| { \ |
| (__HANDLE__)->Mask = 0x00FF ; \ |
| } \ |
| else \ |
| { \ |
| (__HANDLE__)->Mask = 0x007F ; \ |
| } \ |
| } \ |
| else if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_7B) \ |
| { \ |
| if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \ |
| { \ |
| (__HANDLE__)->Mask = 0x007F ; \ |
| } \ |
| else \ |
| { \ |
| (__HANDLE__)->Mask = 0x003F ; \ |
| } \ |
| } \ |
| } while(0) |
| |
| |
| /** |
| * @brief Ensure that USART frame length is valid. |
| * @param __LENGTH__ USART frame length. |
| * @retval SET (__LENGTH__ is valid) or RESET (__LENGTH__ is invalid) |
| */ |
| #define IS_USART_WORD_LENGTH(__LENGTH__) (((__LENGTH__) == USART_WORDLENGTH_7B) || \ |
| ((__LENGTH__) == USART_WORDLENGTH_8B) || \ |
| ((__LENGTH__) == USART_WORDLENGTH_9B)) |
| #if defined(USART_CR2_SLVEN) |
| /** |
| * @brief Ensure that USART Negative Slave Select (NSS) pin management is valid. |
| * @param __NSS__ USART Negative Slave Select pin management. |
| * @retval SET (__NSS__ is valid) or RESET (__NSS__ is invalid) |
| */ |
| #define IS_USART_NSS(__NSS__) (((__NSS__) == USART_NSS_HARD) || \ |
| ((__NSS__) == USART_NSS_SOFT)) |
| #endif |
| |
| #if defined(USART_CR1_FIFOEN) |
| /** |
| * @brief Ensure that USART TXFIFO threshold level is valid. |
| * @param __THRESHOLD__ USART TXFIFO threshold level. |
| * @retval SET (__THRESHOLD__ is valid) or RESET (__THRESHOLD__ is invalid) |
| */ |
| #define IS_USART_TXFIFO_THRESHOLD(__THRESHOLD__) (((__THRESHOLD__) == USART_TXFIFO_THRESHOLD_1_8) || \ |
| ((__THRESHOLD__) == USART_TXFIFO_THRESHOLD_1_4) || \ |
| ((__THRESHOLD__) == USART_TXFIFO_THRESHOLD_1_2) || \ |
| ((__THRESHOLD__) == USART_TXFIFO_THRESHOLD_3_4) || \ |
| ((__THRESHOLD__) == USART_TXFIFO_THRESHOLD_7_8) || \ |
| ((__THRESHOLD__) == USART_TXFIFO_THRESHOLD_8_8)) |
| |
| /** |
| * @brief Ensure that USART RXFIFO threshold level is valid. |
| * @param __THRESHOLD__ USART RXFIFO threshold level. |
| * @retval SET (__THRESHOLD__ is valid) or RESET (__THRESHOLD__ is invalid) |
| */ |
| #define IS_USART_RXFIFO_THRESHOLD(__THRESHOLD__) (((__THRESHOLD__) == USART_RXFIFO_THRESHOLD_1_8) || \ |
| ((__THRESHOLD__) == USART_RXFIFO_THRESHOLD_1_4) || \ |
| ((__THRESHOLD__) == USART_RXFIFO_THRESHOLD_1_2) || \ |
| ((__THRESHOLD__) == USART_RXFIFO_THRESHOLD_3_4) || \ |
| ((__THRESHOLD__) == USART_RXFIFO_THRESHOLD_7_8) || \ |
| ((__THRESHOLD__) == USART_RXFIFO_THRESHOLD_8_8)) |
| #endif |
| |
| /** |
| * @} |
| */ |
| |
| /* Exported functions --------------------------------------------------------*/ |
| /** @addtogroup USARTEx_Exported_Functions |
| * @{ |
| */ |
| |
| /** @addtogroup USARTEx_Exported_Functions_Group2 |
| * @{ |
| */ |
| |
| /* IO operation functions *****************************************************/ |
| #if defined(USART_CR1_FIFOEN) |
| void HAL_USARTEx_RxFifoFullCallback(USART_HandleTypeDef *husart); |
| void HAL_USARTEx_TxFifoEmptyCallback(USART_HandleTypeDef *husart); |
| #endif |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup USARTEx_Exported_Functions_Group3 |
| * @{ |
| */ |
| |
| /* Peripheral Control functions ***********************************************/ |
| #if defined(USART_CR2_SLVEN) |
| HAL_StatusTypeDef HAL_USARTEx_EnableSlaveMode(USART_HandleTypeDef *husart); |
| HAL_StatusTypeDef HAL_USARTEx_DisableSlaveMode(USART_HandleTypeDef *husart); |
| HAL_StatusTypeDef HAL_USARTEx_ConfigNSS(USART_HandleTypeDef *husart, uint32_t NSSConfig); |
| #endif |
| |
| #if defined(USART_CR1_FIFOEN) |
| HAL_StatusTypeDef HAL_USARTEx_EnableFifoMode(USART_HandleTypeDef *husart); |
| HAL_StatusTypeDef HAL_USARTEx_DisableFifoMode(USART_HandleTypeDef *husart); |
| HAL_StatusTypeDef HAL_USARTEx_SetTxFifoThreshold(USART_HandleTypeDef *husart, uint32_t Threshold); |
| HAL_StatusTypeDef HAL_USARTEx_SetRxFifoThreshold(USART_HandleTypeDef *husart, uint32_t Threshold); |
| #endif |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __STM32L4xx_HAL_USART_EX_H */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |