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- /**
- ******************************************************************************
- * @file stm32l4xx_hal_sai_ex.h
- * @author MCD Application Team
- * @brief Header file of SAI HAL extended 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_HAL_SAI_EX_H
- #define STM32L4xx_HAL_SAI_EX_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- #if defined(STM32L4R5xx) || defined(STM32L4R7xx) || defined(STM32L4R9xx) || defined(STM32L4S5xx) || defined(STM32L4S7xx) || defined(STM32L4S9xx) || \
- defined(STM32L4P5xx) || defined(STM32L4Q5xx)
- /* Includes ------------------------------------------------------------------*/
- #include "stm32l4xx_hal_def.h"
- /** @addtogroup STM32L4xx_HAL_Driver
- * @{
- */
- /** @addtogroup SAIEx
- * @{
- */
- /* Exported types ------------------------------------------------------------*/
- /** @defgroup SAIEx_Exported_Types SAIEx Exported Types
- * @{
- */
- /**
- * @brief PDM microphone delay structure definition
- */
- typedef struct
- {
- uint32_t MicPair; /*!< Specifies which pair of microphones is selected.
- This parameter must be a number between Min_Data = 1 and Max_Data = 3. */
- uint32_t LeftDelay; /*!< Specifies the delay in PDM clock unit to apply on left microphone.
- This parameter must be a number between Min_Data = 0 and Max_Data = 7. */
- uint32_t RightDelay; /*!< Specifies the delay in PDM clock unit to apply on right microphone.
- This parameter must be a number between Min_Data = 0 and Max_Data = 7. */
- } SAIEx_PdmMicDelayParamTypeDef;
- /**
- * @}
- */
- /* Exported constants --------------------------------------------------------*/
- /* Exported macros -----------------------------------------------------------*/
- /* Exported functions --------------------------------------------------------*/
- /** @addtogroup SAIEx_Exported_Functions SAIEx Extended Exported Functions
- * @{
- */
- /** @addtogroup SAIEx_Exported_Functions_Group1 Peripheral Control functions
- * @{
- */
- HAL_StatusTypeDef HAL_SAIEx_ConfigPdmMicDelay(const SAI_HandleTypeDef *hsai,
- const SAIEx_PdmMicDelayParamTypeDef *pdmMicDelay);
- /**
- * @}
- */
- /**
- * @}
- */
- /* Private macros ------------------------------------------------------------*/
- /** @addtogroup SAIEx_Private_Macros SAIEx Extended Private Macros
- * @{
- */
- #define IS_SAI_PDM_MIC_DELAY(VALUE) ((VALUE) <= 7U)
- /**
- * @}
- */
- /**
- * @}
- */
- /**
- * @}
- */
- #endif /* STM32L4R5xx || STM32L4R7xx || STM32L4R9xx || STM32L4S5xx || STM32L4S7xx || STM32L4S9xx || */
- /* STM32L4P5xx || STM32L4Q5xx */
- #ifdef __cplusplus
- }
- #endif
- #endif /* STM32L4xx_HAL_SAI_EX_H */
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