1 /** 2 ****************************************************************************** 3 * @file stm32l4xx_hal_sai_ex.h 4 * @author MCD Application Team 5 * @brief Header file of SAI HAL extended module. 6 ****************************************************************************** 7 * @attention 8 * 9 * <h2><center>© Copyright (c) 2017 STMicroelectronics. 10 * All rights reserved.</center></h2> 11 * 12 * This software component is licensed by ST under BSD 3-Clause license, 13 * the "License"; You may not use this file except in compliance with the 14 * License. You may obtain a copy of the License at: 15 * opensource.org/licenses/BSD-3-Clause 16 * 17 ****************************************************************************** 18 */ 19 20 /* Define to prevent recursive inclusion -------------------------------------*/ 21 #ifndef STM32L4xx_HAL_SAI_EX_H 22 #define STM32L4xx_HAL_SAI_EX_H 23 24 #ifdef __cplusplus 25 extern "C" { 26 #endif 27 28 #if defined(STM32L4R5xx) || defined(STM32L4R7xx) || defined(STM32L4R9xx) || defined(STM32L4S5xx) || defined(STM32L4S7xx) || defined(STM32L4S9xx) || \ 29 defined(STM32L4P5xx) || defined(STM32L4Q5xx) 30 31 /* Includes ------------------------------------------------------------------*/ 32 #include "stm32l4xx_hal_def.h" 33 34 /** @addtogroup STM32L4xx_HAL_Driver 35 * @{ 36 */ 37 38 /** @addtogroup SAIEx 39 * @{ 40 */ 41 42 /* Exported types ------------------------------------------------------------*/ 43 /** @defgroup SAIEx_Exported_Types SAIEx Exported Types 44 * @{ 45 */ 46 47 /** 48 * @brief PDM microphone delay structure definition 49 */ 50 typedef struct 51 { 52 uint32_t MicPair; /*!< Specifies which pair of microphones is selected. 53 This parameter must be a number between Min_Data = 1 and Max_Data = 3. */ 54 55 uint32_t LeftDelay; /*!< Specifies the delay in PDM clock unit to apply on left microphone. 56 This parameter must be a number between Min_Data = 0 and Max_Data = 7. */ 57 58 uint32_t RightDelay; /*!< Specifies the delay in PDM clock unit to apply on right microphone. 59 This parameter must be a number between Min_Data = 0 and Max_Data = 7. */ 60 } SAIEx_PdmMicDelayParamTypeDef; 61 62 /** 63 * @} 64 */ 65 66 /* Exported constants --------------------------------------------------------*/ 67 /* Exported macros -----------------------------------------------------------*/ 68 /* Exported functions --------------------------------------------------------*/ 69 /** @addtogroup SAIEx_Exported_Functions SAIEx Extended Exported Functions 70 * @{ 71 */ 72 73 /** @addtogroup SAIEx_Exported_Functions_Group1 Peripheral Control functions 74 * @{ 75 */ 76 HAL_StatusTypeDef HAL_SAIEx_ConfigPdmMicDelay(SAI_HandleTypeDef *hsai, SAIEx_PdmMicDelayParamTypeDef *pdmMicDelay); 77 /** 78 * @} 79 */ 80 81 /** 82 * @} 83 */ 84 85 /* Private macros ------------------------------------------------------------*/ 86 /** @addtogroup SAIEx_Private_Macros SAIEx Extended Private Macros 87 * @{ 88 */ 89 #define IS_SAI_PDM_MIC_DELAY(VALUE) ((VALUE) <= 7U) 90 /** 91 * @} 92 */ 93 94 /** 95 * @} 96 */ 97 98 /** 99 * @} 100 */ 101 102 #endif /* STM32L4R5xx || STM32L4R7xx || STM32L4R9xx || STM32L4S5xx || STM32L4S7xx || STM32L4S9xx || */ 103 /* STM32L4P5xx || STM32L4Q5xx */ 104 105 #ifdef __cplusplus 106 } 107 #endif 108 109 #endif /* STM32L4xx_HAL_SAI_EX_H */ 110 111 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 112