stm32f4xx_hal_i2s.h 19 KB

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  1. /**
  2. ******************************************************************************
  3. * @file stm32f4xx_hal_i2s.h
  4. * @author MCD Application Team
  5. * @version V1.6.0
  6. * @date 04-November-2016
  7. * @brief Header file of I2S HAL module.
  8. ******************************************************************************
  9. * @attention
  10. *
  11. * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
  12. *
  13. * Redistribution and use in source and binary forms, with or without modification,
  14. * are permitted provided that the following conditions are met:
  15. * 1. Redistributions of source code must retain the above copyright notice,
  16. * this list of conditions and the following disclaimer.
  17. * 2. Redistributions in binary form must reproduce the above copyright notice,
  18. * this list of conditions and the following disclaimer in the documentation
  19. * and/or other materials provided with the distribution.
  20. * 3. Neither the name of STMicroelectronics nor the names of its contributors
  21. * may be used to endorse or promote products derived from this software
  22. * without specific prior written permission.
  23. *
  24. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  28. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30. * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  31. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  32. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34. *
  35. ******************************************************************************
  36. */
  37. /* Define to prevent recursive inclusion -------------------------------------*/
  38. #ifndef __STM32F4xx_HAL_I2S_H
  39. #define __STM32F4xx_HAL_I2S_H
  40. #ifdef __cplusplus
  41. extern "C" {
  42. #endif
  43. /* Includes ------------------------------------------------------------------*/
  44. #include "stm32f4xx_hal_def.h"
  45. /** @addtogroup STM32F4xx_HAL_Driver
  46. * @{
  47. */
  48. /** @addtogroup I2S
  49. * @{
  50. */
  51. /* Exported types ------------------------------------------------------------*/
  52. /** @defgroup I2S_Exported_Types I2S Exported Types
  53. * @{
  54. */
  55. /**
  56. * @brief I2S Init structure definition
  57. */
  58. typedef struct
  59. {
  60. uint32_t Mode; /*!< Specifies the I2S operating mode.
  61. This parameter can be a value of @ref I2S_Mode */
  62. uint32_t Standard; /*!< Specifies the standard used for the I2S communication.
  63. This parameter can be a value of @ref I2S_Standard */
  64. uint32_t DataFormat; /*!< Specifies the data format for the I2S communication.
  65. This parameter can be a value of @ref I2S_Data_Format */
  66. uint32_t MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not.
  67. This parameter can be a value of @ref I2S_MCLK_Output */
  68. uint32_t AudioFreq; /*!< Specifies the frequency selected for the I2S communication.
  69. This parameter can be a value of @ref I2S_Audio_Frequency */
  70. uint32_t CPOL; /*!< Specifies the idle state of the I2S clock.
  71. This parameter can be a value of @ref I2S_Clock_Polarity */
  72. uint32_t ClockSource; /*!< Specifies the I2S Clock Source.
  73. This parameter can be a value of @ref I2S_Clock_Source */
  74. uint32_t FullDuplexMode; /*!< Specifies the I2S FullDuplex mode.
  75. This parameter can be a value of @ref I2S_FullDuplex_Mode */
  76. }I2S_InitTypeDef;
  77. /**
  78. * @brief HAL State structures definition
  79. */
  80. typedef enum
  81. {
  82. HAL_I2S_STATE_RESET = 0x00U, /*!< I2S not yet initialized or disabled */
  83. HAL_I2S_STATE_READY = 0x01U, /*!< I2S initialized and ready for use */
  84. HAL_I2S_STATE_BUSY = 0x02U, /*!< I2S internal process is ongoing */
  85. HAL_I2S_STATE_BUSY_TX = 0x12U, /*!< Data Transmission process is ongoing */
  86. HAL_I2S_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing */
  87. HAL_I2S_STATE_BUSY_TX_RX = 0x32U, /*!< Data Transmission and Reception process is ongoing */
  88. HAL_I2S_STATE_TIMEOUT = 0x03U, /*!< I2S timeout state */
  89. HAL_I2S_STATE_ERROR = 0x04U /*!< I2S error state */
  90. }HAL_I2S_StateTypeDef;
  91. /**
  92. * @brief I2S handle Structure definition
  93. */
  94. typedef struct
  95. {
  96. SPI_TypeDef *Instance; /* I2S registers base address */
  97. I2S_InitTypeDef Init; /* I2S communication parameters */
  98. uint16_t *pTxBuffPtr; /* Pointer to I2S Tx transfer buffer */
  99. __IO uint16_t TxXferSize; /* I2S Tx transfer size */
  100. __IO uint16_t TxXferCount; /* I2S Tx transfer Counter */
  101. uint16_t *pRxBuffPtr; /* Pointer to I2S Rx transfer buffer */
  102. __IO uint16_t RxXferSize; /* I2S Rx transfer size */
  103. __IO uint16_t RxXferCount; /* I2S Rx transfer counter */
  104. DMA_HandleTypeDef *hdmatx; /* I2S Tx DMA handle parameters */
  105. DMA_HandleTypeDef *hdmarx; /* I2S Rx DMA handle parameters */
  106. __IO HAL_LockTypeDef Lock; /* I2S locking object */
  107. __IO HAL_I2S_StateTypeDef State; /* I2S communication state */
  108. __IO uint32_t ErrorCode; /* I2S Error code */
  109. }I2S_HandleTypeDef;
  110. /**
  111. * @}
  112. */
  113. /* Exported constants --------------------------------------------------------*/
  114. /** @defgroup I2S_Exported_Constants I2S Exported Constants
  115. * @{
  116. */
  117. /** @defgroup I2S_Error_Code I2S Error Code
  118. * @brief I2S Error Code
  119. * @{
  120. */
  121. #define HAL_I2S_ERROR_NONE ((uint32_t)0x00000000U) /*!< No error */
  122. #define HAL_I2S_ERROR_UDR ((uint32_t)0x00000001U) /*!< I2S Underrun error */
  123. #define HAL_I2S_ERROR_OVR ((uint32_t)0x00000002U) /*!< I2S Overrun error */
  124. #define HAL_I2SEX_ERROR_UDR ((uint32_t)0x00000004U) /*!< I2S extended Underrun error */
  125. #define HAL_I2SEX_ERROR_OVR ((uint32_t)0x00000008U) /*!< I2S extended Overrun error */
  126. #define HAL_I2S_ERROR_FRE ((uint32_t)0x00000010U) /*!< I2S Frame format error */
  127. #define HAL_I2S_ERROR_DMA ((uint32_t)0x00000020U) /*!< DMA transfer error */
  128. /**
  129. * @}
  130. */
  131. /** @defgroup I2S_Mode I2S Mode
  132. * @{
  133. */
  134. #define I2S_MODE_SLAVE_TX ((uint32_t)0x00000000U)
  135. #define I2S_MODE_SLAVE_RX ((uint32_t)0x00000100U)
  136. #define I2S_MODE_MASTER_TX ((uint32_t)0x00000200U)
  137. #define I2S_MODE_MASTER_RX ((uint32_t)0x00000300U)
  138. /**
  139. * @}
  140. */
  141. /** @defgroup I2S_Standard I2S Standard
  142. * @{
  143. */
  144. #define I2S_STANDARD_PHILIPS ((uint32_t)0x00000000U)
  145. #define I2S_STANDARD_MSB ((uint32_t)0x00000010U)
  146. #define I2S_STANDARD_LSB ((uint32_t)0x00000020U)
  147. #define I2S_STANDARD_PCM_SHORT ((uint32_t)0x00000030U)
  148. #define I2S_STANDARD_PCM_LONG ((uint32_t)0x000000B0U)
  149. /**
  150. * @}
  151. */
  152. /** @defgroup I2S_Data_Format I2S Data Format
  153. * @{
  154. */
  155. #define I2S_DATAFORMAT_16B ((uint32_t)0x00000000U)
  156. #define I2S_DATAFORMAT_16B_EXTENDED ((uint32_t)0x00000001U)
  157. #define I2S_DATAFORMAT_24B ((uint32_t)0x00000003U)
  158. #define I2S_DATAFORMAT_32B ((uint32_t)0x00000005U)
  159. /**
  160. * @}
  161. */
  162. /** @defgroup I2S_MCLK_Output I2S Mclk Output
  163. * @{
  164. */
  165. #define I2S_MCLKOUTPUT_ENABLE ((uint32_t)SPI_I2SPR_MCKOE)
  166. #define I2S_MCLKOUTPUT_DISABLE ((uint32_t)0x00000000U)
  167. /**
  168. * @}
  169. */
  170. /** @defgroup I2S_Audio_Frequency I2S Audio Frequency
  171. * @{
  172. */
  173. #define I2S_AUDIOFREQ_192K ((uint32_t)192000U)
  174. #define I2S_AUDIOFREQ_96K ((uint32_t)96000U)
  175. #define I2S_AUDIOFREQ_48K ((uint32_t)48000U)
  176. #define I2S_AUDIOFREQ_44K ((uint32_t)44100U)
  177. #define I2S_AUDIOFREQ_32K ((uint32_t)32000U)
  178. #define I2S_AUDIOFREQ_22K ((uint32_t)22050U)
  179. #define I2S_AUDIOFREQ_16K ((uint32_t)16000U)
  180. #define I2S_AUDIOFREQ_11K ((uint32_t)11025U)
  181. #define I2S_AUDIOFREQ_8K ((uint32_t)8000U)
  182. #define I2S_AUDIOFREQ_DEFAULT ((uint32_t)2U)
  183. /**
  184. * @}
  185. */
  186. /** @defgroup I2S_FullDuplex_Mode I2S FullDuplex Mode
  187. * @{
  188. */
  189. #define I2S_FULLDUPLEXMODE_DISABLE ((uint32_t)0x00000000U)
  190. #define I2S_FULLDUPLEXMODE_ENABLE ((uint32_t)0x00000001U)
  191. /**
  192. * @}
  193. */
  194. /** @defgroup I2S_Clock_Polarity I2S Clock Polarity
  195. * @{
  196. */
  197. #define I2S_CPOL_LOW ((uint32_t)0x00000000U)
  198. #define I2S_CPOL_HIGH ((uint32_t)SPI_I2SCFGR_CKPOL)
  199. /**
  200. * @}
  201. */
  202. /** @defgroup I2S_Interrupts_Definition I2S Interrupts Definition
  203. * @{
  204. */
  205. #define I2S_IT_TXE SPI_CR2_TXEIE
  206. #define I2S_IT_RXNE SPI_CR2_RXNEIE
  207. #define I2S_IT_ERR SPI_CR2_ERRIE
  208. /**
  209. * @}
  210. */
  211. /** @defgroup I2S_Flags_Definition I2S Flags Definition
  212. * @{
  213. */
  214. #define I2S_FLAG_TXE SPI_SR_TXE
  215. #define I2S_FLAG_RXNE SPI_SR_RXNE
  216. #define I2S_FLAG_UDR SPI_SR_UDR
  217. #define I2S_FLAG_OVR SPI_SR_OVR
  218. #define I2S_FLAG_FRE SPI_SR_FRE
  219. #define I2S_FLAG_CHSIDE SPI_SR_CHSIDE
  220. #define I2S_FLAG_BSY SPI_SR_BSY
  221. /**
  222. * @}
  223. */
  224. /**
  225. * @}
  226. */
  227. /* Exported macro ------------------------------------------------------------*/
  228. /** @defgroup I2S_Exported_Macros I2S Exported Macros
  229. * @{
  230. */
  231. /** @brief Reset I2S handle state
  232. * @param __HANDLE__: specifies the I2S Handle.
  233. * @retval None
  234. */
  235. #define __HAL_I2S_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2S_STATE_RESET)
  236. /** @brief Enable or disable the specified SPI peripheral (in I2S mode).
  237. * @param __HANDLE__: specifies the I2S Handle.
  238. * @retval None
  239. */
  240. #define __HAL_I2S_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->I2SCFGR |= SPI_I2SCFGR_I2SE)
  241. #define __HAL_I2S_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->I2SCFGR &= ~SPI_I2SCFGR_I2SE)
  242. /** @brief Enable or disable the specified I2S interrupts.
  243. * @param __HANDLE__: specifies the I2S Handle.
  244. * @param __INTERRUPT__: specifies the interrupt source to enable or disable.
  245. * This parameter can be one of the following values:
  246. * @arg I2S_IT_TXE: Tx buffer empty interrupt enable
  247. * @arg I2S_IT_RXNE: RX buffer not empty interrupt enable
  248. * @arg I2S_IT_ERR: Error interrupt enable
  249. * @retval None
  250. */
  251. #define __HAL_I2S_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR2 |= (__INTERRUPT__))
  252. #define __HAL_I2S_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR2 &= ~(__INTERRUPT__))
  253. /** @brief Checks if the specified I2S interrupt source is enabled or disabled.
  254. * @param __HANDLE__: specifies the I2S Handle.
  255. * This parameter can be I2S where x: 1, 2, or 3 to select the I2S peripheral.
  256. * @param __INTERRUPT__: specifies the I2S interrupt source to check.
  257. * This parameter can be one of the following values:
  258. * @arg I2S_IT_TXE: Tx buffer empty interrupt enable
  259. * @arg I2S_IT_RXNE: RX buffer not empty interrupt enable
  260. * @arg I2S_IT_ERR: Error interrupt enable
  261. * @retval The new state of __IT__ (TRUE or FALSE).
  262. */
  263. #define __HAL_I2S_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)
  264. /** @brief Checks whether the specified I2S flag is set or not.
  265. * @param __HANDLE__: specifies the I2S Handle.
  266. * @param __FLAG__: specifies the flag to check.
  267. * This parameter can be one of the following values:
  268. * @arg I2S_FLAG_RXNE: Receive buffer not empty flag
  269. * @arg I2S_FLAG_TXE: Transmit buffer empty flag
  270. * @arg I2S_FLAG_UDR: Underrun flag
  271. * @arg I2S_FLAG_OVR: Overrun flag
  272. * @arg I2S_FLAG_FRE: Frame error flag
  273. * @arg I2S_FLAG_CHSIDE: Channel Side flag
  274. * @arg I2S_FLAG_BSY: Busy flag
  275. * @retval The new state of __FLAG__ (TRUE or FALSE).
  276. */
  277. #define __HAL_I2S_GET_FLAG(__HANDLE__, __FLAG__) ((((__HANDLE__)->Instance->SR) & (__FLAG__)) == (__FLAG__))
  278. /** @brief Clears the I2S OVR pending flag.
  279. * @param __HANDLE__: specifies the I2S Handle.
  280. * @retval None
  281. */
  282. #define __HAL_I2S_CLEAR_OVRFLAG(__HANDLE__) \
  283. do{ \
  284. __IO uint32_t tmpreg = 0x00U; \
  285. tmpreg = (__HANDLE__)->Instance->DR; \
  286. tmpreg = (__HANDLE__)->Instance->SR; \
  287. UNUSED(tmpreg); \
  288. } while(0)
  289. /** @brief Clears the I2S UDR pending flag.
  290. * @param __HANDLE__: specifies the I2S Handle.
  291. * @retval None
  292. */
  293. #define __HAL_I2S_CLEAR_UDRFLAG(__HANDLE__) \
  294. do{ \
  295. __IO uint32_t tmpreg = 0x00U; \
  296. tmpreg = (__HANDLE__)->Instance->SR; \
  297. UNUSED(tmpreg); \
  298. } while(0)
  299. /**
  300. * @}
  301. */
  302. /* Include I2S Extension module */
  303. #include "stm32f4xx_hal_i2s_ex.h"
  304. /* Exported functions --------------------------------------------------------*/
  305. /** @addtogroup I2S_Exported_Functions
  306. * @{
  307. */
  308. /** @addtogroup I2S_Exported_Functions_Group1
  309. * @{
  310. */
  311. /* Initialization/de-initialization functions **********************************/
  312. HAL_StatusTypeDef HAL_I2S_Init(I2S_HandleTypeDef *hi2s);
  313. HAL_StatusTypeDef HAL_I2S_DeInit (I2S_HandleTypeDef *hi2s);
  314. void HAL_I2S_MspInit(I2S_HandleTypeDef *hi2s);
  315. void HAL_I2S_MspDeInit(I2S_HandleTypeDef *hi2s);
  316. /**
  317. * @}
  318. */
  319. /** @addtogroup I2S_Exported_Functions_Group2
  320. * @{
  321. */
  322. /* I/O operation functions *****************************************************/
  323. /* Blocking mode: Polling */
  324. HAL_StatusTypeDef HAL_I2S_Transmit(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout);
  325. HAL_StatusTypeDef HAL_I2S_Receive(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size, uint32_t Timeout);
  326. /* Non-Blocking mode: Interrupt */
  327. HAL_StatusTypeDef HAL_I2S_Transmit_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size);
  328. HAL_StatusTypeDef HAL_I2S_Receive_IT(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size);
  329. void HAL_I2S_IRQHandler(I2S_HandleTypeDef *hi2s);
  330. /* Non-Blocking mode: DMA */
  331. HAL_StatusTypeDef HAL_I2S_Transmit_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size);
  332. HAL_StatusTypeDef HAL_I2S_Receive_DMA(I2S_HandleTypeDef *hi2s, uint16_t *pData, uint16_t Size);
  333. HAL_StatusTypeDef HAL_I2S_DMAPause(I2S_HandleTypeDef *hi2s);
  334. HAL_StatusTypeDef HAL_I2S_DMAResume(I2S_HandleTypeDef *hi2s);
  335. HAL_StatusTypeDef HAL_I2S_DMAStop(I2S_HandleTypeDef *hi2s);
  336. /* Peripheral Control and State functions **************************************/
  337. HAL_I2S_StateTypeDef HAL_I2S_GetState(I2S_HandleTypeDef *hi2s);
  338. uint32_t HAL_I2S_GetError(I2S_HandleTypeDef *hi2s);
  339. /* Callbacks used in non blocking modes (Interrupt and DMA) *******************/
  340. void HAL_I2S_TxHalfCpltCallback(I2S_HandleTypeDef *hi2s);
  341. void HAL_I2S_TxCpltCallback(I2S_HandleTypeDef *hi2s);
  342. void HAL_I2S_RxHalfCpltCallback(I2S_HandleTypeDef *hi2s);
  343. void HAL_I2S_RxCpltCallback(I2S_HandleTypeDef *hi2s);
  344. void HAL_I2S_ErrorCallback(I2S_HandleTypeDef *hi2s);
  345. /**
  346. * @}
  347. */
  348. /**
  349. * @}
  350. */
  351. /* Private types -------------------------------------------------------------*/
  352. /* Private variables ---------------------------------------------------------*/
  353. /* Private constants ---------------------------------------------------------*/
  354. /** @defgroup I2S_Private_Constants I2S Private Constants
  355. * @{
  356. */
  357. /**
  358. * @}
  359. */
  360. /* Private macros ------------------------------------------------------------*/
  361. /** @defgroup I2S_Private_Macros I2S Private Macros
  362. * @{
  363. */
  364. #define IS_I2S_MODE(MODE) (((MODE) == I2S_MODE_SLAVE_TX) || \
  365. ((MODE) == I2S_MODE_SLAVE_RX) || \
  366. ((MODE) == I2S_MODE_MASTER_TX) || \
  367. ((MODE) == I2S_MODE_MASTER_RX))
  368. #define IS_I2S_STANDARD(STANDARD) (((STANDARD) == I2S_STANDARD_PHILIPS) || \
  369. ((STANDARD) == I2S_STANDARD_MSB) || \
  370. ((STANDARD) == I2S_STANDARD_LSB) || \
  371. ((STANDARD) == I2S_STANDARD_PCM_SHORT) || \
  372. ((STANDARD) == I2S_STANDARD_PCM_LONG))
  373. #define IS_I2S_DATA_FORMAT(FORMAT) (((FORMAT) == I2S_DATAFORMAT_16B) || \
  374. ((FORMAT) == I2S_DATAFORMAT_16B_EXTENDED) || \
  375. ((FORMAT) == I2S_DATAFORMAT_24B) || \
  376. ((FORMAT) == I2S_DATAFORMAT_32B))
  377. #define IS_I2S_MCLK_OUTPUT(OUTPUT) (((OUTPUT) == I2S_MCLKOUTPUT_ENABLE) || \
  378. ((OUTPUT) == I2S_MCLKOUTPUT_DISABLE))
  379. #define IS_I2S_AUDIO_FREQ(FREQ) ((((FREQ) >= I2S_AUDIOFREQ_8K) && \
  380. ((FREQ) <= I2S_AUDIOFREQ_192K)) || \
  381. ((FREQ) == I2S_AUDIOFREQ_DEFAULT))
  382. #define IS_I2S_FULLDUPLEX_MODE(MODE) (((MODE) == I2S_FULLDUPLEXMODE_DISABLE) || \
  383. ((MODE) == I2S_FULLDUPLEXMODE_ENABLE))
  384. #define IS_I2S_CPOL(CPOL) (((CPOL) == I2S_CPOL_LOW) || \
  385. ((CPOL) == I2S_CPOL_HIGH))
  386. /**
  387. * @}
  388. */
  389. /* Private functions ---------------------------------------------------------*/
  390. /** @defgroup I2S_Private_Functions I2S Private Functions
  391. * @{
  392. */
  393. void I2S_DMATxCplt(DMA_HandleTypeDef *hdma);
  394. void I2S_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
  395. void I2S_DMARxCplt(DMA_HandleTypeDef *hdma);
  396. void I2S_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
  397. void I2S_DMAError(DMA_HandleTypeDef *hdma);
  398. HAL_StatusTypeDef I2S_WaitFlagStateUntilTimeout(I2S_HandleTypeDef *hi2s, uint32_t Flag, uint32_t Status, uint32_t Timeout);
  399. HAL_StatusTypeDef I2S_Transmit_IT(I2S_HandleTypeDef *hi2s);
  400. HAL_StatusTypeDef I2S_Receive_IT(I2S_HandleTypeDef *hi2s);
  401. /**
  402. * @}
  403. */
  404. /**
  405. * @}
  406. */
  407. /**
  408. * @}
  409. */
  410. #ifdef __cplusplus
  411. }
  412. #endif
  413. #endif /* __STM32F4xx_HAL_I2S_H */
  414. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/