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/**
******************************************************************************
* @file stm32f413h_discovery_audio.h
* @author MCD Application Team
* @brief This file contains the common defines and functions prototypes for
* the stm32f413h_discovery_audio.c driver.
******************************************************************************
* @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 __STM32F413H_DISCOVERY_AUDIO_H
#define __STM32F413H_DISCOVERY_AUDIO_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
/* Include audio component Driver */
#include "../Components/wm8994/wm8994.h"
#include "stm32f413h_discovery.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup STM32F413H_DISCOVERY
* @{
*/
/** @addtogroup STM32F413H_DISCOVERY_AUDIO
* @{
*/
/** @defgroup STM32F413H_DISCOVERY_AUDIO_Exported_Types STM32F413H DISCOVERY Audio Exported Types
* @{
*/
typedef struct
{
uint32_t Frequency; /* Record Frequency */
uint32_t BitResolution; /* Record bit resolution */
uint32_t ChannelNbr; /* Record Channel Number */
uint16_t *pRecBuf; /* Pointer to record user buffer */
uint32_t RecSize; /* Size to record in mono, double size to record in stereo */
uint32_t InputDevice; /* Audio Input Device */
uint32_t MultiBuffMode; /* Multi buffer mode selection */
}AUDIOIN_ContextTypeDef;
/**
* @}
*/
/** @defgroup STM32F413H_DISCOVERY_AUDIO_Exported_Constants STM32F413H DISCOVERY Audio Exported Constants
* @{
*/
/*------------------------------------------------------------------------------
AUDIO OUT CONFIGURATION
------------------------------------------------------------------------------*/
/* SPI Configuration defines */
#define AUDIO_OUT_I2Sx SPI2
#define AUDIO_OUT_I2Sx_CLK_ENABLE() __HAL_RCC_SPI2_CLK_ENABLE()
#define AUDIO_OUT_I2Sx_CLK_DISABLE() __HAL_RCC_SPI2_CLK_DISABLE()
#define AUDIO_OUT_I2Sx_MCK_PIN GPIO_PIN_3
#define AUDIO_OUT_I2Sx_MCK_GPIO_PORT GPIOA
#define AUDIO_OUT_I2Sx_MCK_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
#define AUDIO_OUT_I2Sx_MCK_GPIO_CLK_DISABLE() __HAL_RCC_GPIOA_CLK_DISABLE()
#define AUDIO_OUT_I2Sx_MCK_AF GPIO_AF5_SPI2
#define AUDIO_OUT_I2Sx_SCK_PIN GPIO_PIN_3
#define AUDIO_OUT_I2Sx_SCK_GPIO_PORT GPIOD
#define AUDIO_OUT_I2Sx_SCK_GPIO_CLK_ENABLE() __HAL_RCC_GPIOD_CLK_ENABLE()
#define AUDIO_OUT_I2Sx_SCK_GPIO_CLK_DISABLE() __HAL_RCC_GPIOD_CLK_DISABLE()
#define AUDIO_OUT_I2Sx_SCK_AF GPIO_AF5_SPI2
#define AUDIO_OUT_I2Sx_WS_PIN GPIO_PIN_9
#define AUDIO_OUT_I2Sx_WS_GPIO_PORT GPIOB
#define AUDIO_OUT_I2Sx_WS_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define AUDIO_OUT_I2Sx_WS_GPIO_CLK_DISABLE() __HAL_RCC_GPIOB_CLK_DISABLE()
#define AUDIO_OUT_I2Sx_WS_AF GPIO_AF5_SPI2
#define AUDIO_OUT_I2Sx_SD_PIN GPIO_PIN_3
#define AUDIO_OUT_I2Sx_SD_GPIO_PORT GPIOC
#define AUDIO_OUT_I2Sx_SD_GPIO_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE()
#define AUDIO_OUT_I2Sx_SD_GPIO_CLK_DISABLE() __HAL_RCC_GPIOC_CLK_DISABLE()
#define AUDIO_OUT_I2Sx_SD_AF GPIO_AF5_SPI2
/* I2S DMA Stream Tx definitions */
#define AUDIO_OUT_I2Sx_DMAx_CLK_ENABLE() __HAL_RCC_DMA1_CLK_ENABLE()
#define AUDIO_OUT_I2Sx_DMAx_CLK_DISABLE() __HAL_RCC_DMA1_CLK_DISABLE()
#define AUDIO_OUT_I2Sx_DMAx_STREAM DMA1_Stream4
#define AUDIO_OUT_I2Sx_DMAx_CHANNEL DMA_CHANNEL_0
#define AUDIO_OUT_I2Sx_DMAx_IRQ DMA1_Stream4_IRQn
#define AUDIO_OUT_I2Sx_DMAx_PERIPH_DATA_SIZE DMA_PDATAALIGN_HALFWORD
#define AUDIO_OUT_I2Sx_DMAx_MEM_DATA_SIZE DMA_MDATAALIGN_HALFWORD
#define DMA_MAX_SIZE 0xFFFF
#define AUDIO_OUT_I2Sx_DMAx_IRQHandler DMA1_Stream4_IRQHandler
/* Select the interrupt preemption priority for the DMA interrupt */
#define AUDIO_OUT_IRQ_PREPRIO ((uint32_t)0x0E) /* Select the preemption priority level(0 is the highest) */
/*------------------------------------------------------------------------------
AUDIO IN CONFIGURATION
------------------------------------------------------------------------------*/
/* DFSDM Configuration defines */
#define AUDIO_DFSDMx_MIC1_CHANNEL DFSDM1_Channel1 /* MP34DT01TR U1 microphone on PCB top side */
#define AUDIO_DFSDMx_MIC2_CHANNEL DFSDM2_Channel1 /* MP34DT01TR U2 microphone on PCB top side */
#define AUDIO_DFSDMx_MIC3_CHANNEL DFSDM2_Channel0 /* MP34DT01TR U3 microphone on PCB top side */
#define AUDIO_DFSDMx_MIC4_CHANNEL DFSDM2_Channel7 /* MP34DT01TR U4 microphone on PCB top side */
#define AUDIO_DFSDMx_MIC5_CHANNEL DFSDM2_Channel6 /* MP34DT01TR U5 microphone on PCB top side */
#define AUDIO_DFSDMx_MIC1_CHANNEL_FOR_FILTER DFSDM_CHANNEL_1
#define AUDIO_DFSDMx_MIC2_CHANNEL_FOR_FILTER DFSDM_CHANNEL_1
#define AUDIO_DFSDMx_MIC3_CHANNEL_FOR_FILTER DFSDM_CHANNEL_0
#define AUDIO_DFSDMx_MIC4_CHANNEL_FOR_FILTER DFSDM_CHANNEL_7
#define AUDIO_DFSDMx_MIC5_CHANNEL_FOR_FILTER DFSDM_CHANNEL_6
#define AUDIO_DFSDMx_MIC1_FILTER DFSDM1_Filter0 /* Common MIC1 filter for MP34DT01TR (U1) microphone input */
#define AUDIO_DFSDMx_MIC2_FILTER DFSDM2_Filter0 /* Common MIC2 filter for MP34DT01TR(U2) microphone input */
#define AUDIO_DFSDMx_MIC3_FILTER DFSDM2_Filter1 /* Common MIC2 filter for MP34DT01TR(U3) microphone input */
#define AUDIO_DFSDMx_MIC4_FILTER DFSDM2_Filter2 /* Common MIC2 filter for MP34DT01TR(U4) microphone input */
#define AUDIO_DFSDMx_MIC5_FILTER DFSDM2_Filter3 /* Common MIC2 filter for MP34DT01TR(U5) microphone input */
#define AUDIO_DFSDMx_MIC2_5_CLK_ENABLE() __HAL_RCC_DFSDM2_CLK_ENABLE()
#define AUDIO_DFSDMx_MIC1_CLK_ENABLE() __HAL_RCC_DFSDM1_CLK_ENABLE()
#define AUDIO_DFSDMx_MIC1_CKOUT_PIN GPIO_PIN_8
#define AUDIO_DFSDMx_MIC1_CKOUT_DMIC_GPIO_PORT GPIOA
#define AUDIO_DFSDMx_MIC1_CKOUT_DMIC_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
#define AUDIO_DFSDMx_MIC1_CKOUT_DMIC_AF GPIO_AF6_DFSDM1
#define AUDIO_DFSDMx_MIC1_DMIC_PIN GPIO_PIN_6
#define AUDIO_DFSDMx_MIC1_DMIC_GPIO_PORT GPIOD
#define AUDIO_DFSDMx_MIC1_DMIC_GPIO_CLK_ENABLE() __HAL_RCC_GPIOD_CLK_ENABLE()
#define AUDIO_DFSDMx_MIC1_DMIC_AF GPIO_AF6_DFSDM1
#define AUDIO_DFSDMx_MIC2_5_CKOUT_PIN GPIO_PIN_2
#define AUDIO_DFSDMx_MIC2_5_CKOUT_DMIC_GPIO_PORT GPIOD
#define AUDIO_DFSDMx_MIC2_5_CKOUT_DMIC_GPIO_CLK_ENABLE() __HAL_RCC_GPIOD_CLK_ENABLE()
#define AUDIO_DFSDMx_MIC2_5_CKOUT_DMIC_AF GPIO_AF3_DFSDM2
#define AUDIO_DFSDMx_MIC23_DMIC_PIN GPIO_PIN_7
#define AUDIO_DFSDMx_MIC23_DMIC_GPIO_PORT GPIOA
#define AUDIO_DFSDMx_MIC23_DMIC_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
#define AUDIO_DFSDMx_MIC23_DMIC_AF GPIO_AF7_DFSDM2
#define AUDIO_DFSDMx_MIC45_DMIC_PIN GPIO_PIN_7
#define AUDIO_DFSDMx_MIC45_DMIC_GPIO_PORT GPIOB
#define AUDIO_DFSDMx_MIC45_DMIC_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define AUDIO_DFSDMx_MIC45_DMIC_AF GPIO_AF6_DFSDM2
/* DFSDM DMA Right and Left channels definitions */
#define AUDIO_DFSDMx_DMAx_CLK_ENABLE() __HAL_RCC_DMA2_CLK_ENABLE()
#define AUDIO_DFSDMx_DMAx_MIC1_STREAM DMA2_Stream6
#define AUDIO_DFSDMx_DMAx_MIC1_CHANNEL DMA_CHANNEL_3
#define AUDIO_DFSDMx_DMAx_MIC2_STREAM DMA2_Stream0
#define AUDIO_DFSDMx_DMAx_MIC2_CHANNEL DMA_CHANNEL_8
#define AUDIO_DFSDMx_DMAx_MIC3_STREAM DMA2_Stream1
#define AUDIO_DFSDMx_DMAx_MIC3_CHANNEL DMA_CHANNEL_8
#define AUDIO_DFSDMx_DMAx_MIC4_STREAM DMA2_Stream2
#define AUDIO_DFSDMx_DMAx_MIC4_CHANNEL DMA_CHANNEL_8
#define AUDIO_DFSDMx_DMAx_MIC5_STREAM DMA2_Stream7
#define AUDIO_DFSDMx_DMAx_MIC5_CHANNEL DMA_CHANNEL_8
#define AUDIO_DFSDMx_DMAx_MIC1_IRQ DMA2_Stream6_IRQn
#define AUDIO_DFSDMx_DMAx_MIC2_IRQ DMA2_Stream0_IRQn
#define AUDIO_DFSDMx_DMAx_MIC3_IRQ DMA2_Stream1_IRQn
#define AUDIO_DFSDMx_DMAx_MIC4_IRQ DMA2_Stream2_IRQn
#define AUDIO_DFSDMx_DMAx_MIC5_IRQ DMA2_Stream7_IRQn
#define AUDIO_DFSDMx_DMAx_PERIPH_DATA_SIZE DMA_PDATAALIGN_WORD
#define AUDIO_DFSDMx_DMAx_MEM_DATA_SIZE DMA_MDATAALIGN_WORD
#define AUDIO_DFSDM_DMAx_MIC1_IRQHandler DMA2_Stream6_IRQHandler
#define AUDIO_DFSDM_DMAx_MIC2_IRQHandler DMA2_Stream0_IRQHandler
#define AUDIO_DFSDM_DMAx_MIC3_IRQHandler DMA2_Stream1_IRQHandler
#define AUDIO_DFSDM_DMAx_MIC4_IRQHandler DMA2_Stream2_IRQHandler
#define AUDIO_DFSDM_DMAx_MIC5_IRQHandler DMA2_Stream7_IRQHandler
/* Select the interrupt preemption priority and subpriority for the IT/DMA interrupt */
#define AUDIO_IN_IRQ_PREPRIO 0x0F /* Select the preemption priority level(0 is the highest) */
/* HW defines for Analog mic configuration */
#define AUDIO_IN_I2Sx SPI3
#define AUDIO_IN_I2Sx_CLK_ENABLE() __HAL_RCC_SPI3_CLK_ENABLE()
#define AUDIO_IN_I2Sx_CLK_DISABLE() __HAL_RCC_SPI3_CLK_DISABLE()
#define AUDIO_IN_I2Sx_EXT_SD_PIN GPIO_PIN_4
#define AUDIO_IN_I2Sx_EXT_SD_GPIO_PORT GPIOB
#define AUDIO_IN_I2Sx_EXT_SD_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define AUDIO_IN_I2Sx_EXT_SD_GPIO_CLK_DISABLE() __HAL_RCC_GPIOB_CLK_DISABLE()
#define AUDIO_IN_I2Sx_EXT_SD_AF GPIO_AF7_SPI3
#define AUDIO_IN_CODEC_INT_PIN GPIO_PIN_2
#define AUDIO_IN_CODEC_INT_GPIO_PORT GPIOG
#define AUDIO_IN_CODEC_INT_GPIO_CLK_ENABLE() __HAL_RCC_GPIOG_CLK_ENABLE()
#define AUDIO_IN_CODEC_INT_GPIO_CLK_DISABLE() __HAL_RCC_GPIOG_CLK_DISABLE()
#define AUDIO_IN_CODEC_INT_IRQ EXTI2_IRQn
/* I2S DMA Stream Rx definitions */
#define AUDIO_IN_I2Sx_DMAx_CLK_ENABLE() __HAL_RCC_DMA1_CLK_ENABLE()
#define AUDIO_IN_I2Sx_DMAx_CLK_DISABLE() __HAL_RCC_DMA1_CLK_DISABLE()
#define AUDIO_IN_I2Sx_DMAx_STREAM DMA1_Stream0
#define AUDIO_IN_I2Sx_DMAx_CHANNEL DMA_CHANNEL_3
#define AUDIO_IN_I2Sx_DMAx_IRQ DMA1_Stream0_IRQn
#define AUDIO_IN_I2Sx_DMAx_PERIPH_DATA_SIZE DMA_PDATAALIGN_HALFWORD
#define AUDIO_IN_I2Sx_DMAx_MEM_DATA_SIZE DMA_MDATAALIGN_HALFWORD
#define AUDIO_IN_I2Sx_DMAx_IRQHandler DMA1_Stream0_IRQHandler
#define AUDIO_IN_I2Sx_DMAx_IRQ DMA1_Stream0_IRQn
/*------------------------------------------------------------------------------
CONFIGURATION: Audio Driver Configuration parameters
------------------------------------------------------------------------------*/
#define AUDIODATA_SIZE 2 /* 16-bits audio data size */
/* Audio status definition */
#define AUDIO_OK ((uint8_t)0)
#define AUDIO_ERROR ((uint8_t)1)
#define AUDIO_TIMEOUT ((uint8_t)2)
/* Audio out parameters */
#define DEFAULT_AUDIO_OUT_FREQ I2S_AUDIOFREQ_48K
#define DEFAULT_AUDIO_OUT_BIT_RESOLUTION ((uint8_t)16)
#define DEFAULT_AUDIO_OUT_CHANNEL_NBR ((uint8_t)2) /* Mono = 1, Stereo = 2 */
#define DEFAULT_AUDIO_OUT_VOLUME ((uint16_t)64)
/* Audio in parameters */
#define DEFAULT_AUDIO_IN_FREQ I2S_AUDIOFREQ_16K
#define DEFAULT_AUDIO_IN_BIT_RESOLUTION ((uint8_t)16)
#define DEFAULT_AUDIO_IN_CHANNEL_NBR ((uint8_t)2) /* Mono = 1, Stereo = 2 */
#define DEFAULT_AUDIO_IN_VOLUME ((uint16_t)64)
/*------------------------------------------------------------------------------
OUTPUT DEVICES definition
------------------------------------------------------------------------------*/
/* Alias on existing output devices to adapt for 2 headphones output */
#define OUTPUT_DEVICE_HEADPHONE1 OUTPUT_DEVICE_HEADPHONE
#define OUTPUT_DEVICE_HEADPHONE2 OUTPUT_DEVICE_SPEAKER /* Headphone2 is connected to Speaker output of the wm8994 */
/*------------------------------------------------------------------------------
INPUT DEVICES definition
------------------------------------------------------------------------------*/
/* Analog microphone input from 3.5 audio jack connector */
#define INPUT_DEVICE_ANALOG_MIC ((uint32_t)0x00000001)
/* MP34DT01TR digital microphone on PCB top side */
#define INPUT_DEVICE_DIGITAL_MIC1 ((uint32_t)0x00000010)
#define INPUT_DEVICE_DIGITAL_MIC2 ((uint32_t)0x00000020)
#define INPUT_DEVICE_DIGITAL_MIC3 ((uint32_t)0x00000040)
#define INPUT_DEVICE_DIGITAL_MIC4 ((uint32_t)0x00000080)
#define INPUT_DEVICE_DIGITAL_MIC5 ((uint32_t)0x00000100)
#define INPUT_DEVICE_DIGITAL_MIC ((uint32_t)(INPUT_DEVICE_DIGITAL_MIC1 | INPUT_DEVICE_DIGITAL_MIC2))
#define INPUT_DEVICE_DIGITAL_MIC_ALL ((uint32_t)(INPUT_DEVICE_DIGITAL_MIC1 | INPUT_DEVICE_DIGITAL_MIC2 |\
INPUT_DEVICE_DIGITAL_MIC3 | INPUT_DEVICE_DIGITAL_MIC4 |\
INPUT_DEVICE_DIGITAL_MIC5))
#define DFSDM_MIC_NUMBER (5)
/**
* @}
*/
/** @defgroup STM32F413H_DISCOVERY_AUDIO_Exported_Variables STM32F413H DISCOVERY Audio Exported Variables
* @{
*/
extern __IO uint16_t AudioInVolume;
/**
* @}
*/
/** @defgroup STM32F413H_DISCOVERY_AUDIO_Exported_Macros STM32F413H DISCOVERY Audio Exported Macros
* @{
*/
#define DMA_MAX(x) (((x) <= DMA_MAX_SIZE)? (x):DMA_MAX_SIZE)
#define POS_VAL(VAL) (POSITION_VAL(VAL) - 4)
/**
* @}
*/
/** @defgroup STM32F413H_DISCOVERY_AUDIO_OUT_Exported_Functions STM32F413H DISCOVERY Audio OUT Exported Functions
* @{
*/
uint8_t BSP_AUDIO_OUT_Init(uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq);
uint8_t BSP_AUDIO_OUT_Play(uint16_t* pBuffer, uint32_t Size);
void BSP_AUDIO_OUT_ChangeBuffer(uint16_t *pData, uint16_t Size);
uint8_t BSP_AUDIO_OUT_Pause(void);
uint8_t BSP_AUDIO_OUT_Resume(void);
uint8_t BSP_AUDIO_OUT_Stop(uint32_t Option);
uint8_t BSP_AUDIO_OUT_SetVolume(uint8_t Volume);
void BSP_AUDIO_OUT_SetFrequency(uint32_t AudioFreq);
uint8_t BSP_AUDIO_OUT_SetMute(uint32_t Cmd);
uint8_t BSP_AUDIO_OUT_SetOutputMode(uint8_t Output);
void BSP_AUDIO_OUT_DeInit(void);
/* User Callbacks: user has to implement these functions in his code if they are needed. */
/* This function is called when the requested data has been completely transferred.*/
void BSP_AUDIO_OUT_TransferComplete_CallBack(void);
/* This function is called when half of the requested buffer has been transferred. */
void BSP_AUDIO_OUT_HalfTransfer_CallBack(void);
/* This function is called when an Interrupt due to transfer error on or peripheral
error occurs. */
void BSP_AUDIO_OUT_Error_CallBack(void);
/* These function can be modified in case the current settings (e.g. DMA stream)
need to be changed for specific application needs */
void BSP_AUDIO_OUT_ClockConfig(I2S_HandleTypeDef *hi2s, uint32_t AudioFreq, void *Params);
void BSP_AUDIO_OUT_MspInit(I2S_HandleTypeDef *hi2s, void *Params);
void BSP_AUDIO_OUT_MspDeInit(I2S_HandleTypeDef *hi2s, void *Params);
/**
* @}
*/
/** @defgroup STM32F413H_DISCOVERY_AUDIO_IN_Exported_Functions STM32F413H DISCOVERY AudioIN Exported Functions
* @{
*/
uint8_t BSP_AUDIO_IN_Init(uint32_t AudioFreq, uint32_t BitRes, uint32_t ChnlNbr);
uint8_t BSP_AUDIO_IN_InitEx(uint32_t InputDevice, uint32_t AudioFreq, uint32_t BitRes, uint32_t ChnlNbr);
uint8_t BSP_AUDIO_IN_ConfigMicDefault(uint32_t InputDevice);
uint8_t BSP_AUDIO_IN_ConfigDigitalMic(uint32_t InputDevice, void *Params);
uint8_t BSP_AUDIO_IN_AllocScratch (int32_t *pScratch, uint32_t size);
uint8_t BSP_AUDIO_IN_Record(uint16_t *pBuf, uint32_t Size);
uint8_t BSP_AUDIO_IN_RecordEx(uint32_t *pBuf, uint32_t Size);
uint8_t BSP_AUDIO_IN_SetFrequency(uint32_t AudioFreq);
uint8_t BSP_AUDIO_IN_Stop(void);
uint8_t BSP_AUDIO_IN_StopEx(uint32_t InputDevice);
uint8_t BSP_AUDIO_IN_Pause(void);
uint8_t BSP_AUDIO_IN_PauseEx(uint32_t InputDevice);
uint8_t BSP_AUDIO_IN_Resume(void);
uint8_t BSP_AUDIO_IN_ResumeEx(uint32_t *pBuf, uint32_t InputDevice);
uint8_t BSP_AUDIO_IN_SetVolume(uint8_t Volume);
void BSP_AUDIO_IN_DeInit(void);
/* User Callbacks: user has to implement these functions in his code if they are needed. */
/* This function should be implemented by the user application.
It is called into this driver when the current buffer is filled to prepare the next
buffer pointer and its size. */
void BSP_AUDIO_IN_TransferComplete_CallBack(void);
void BSP_AUDIO_IN_HalfTransfer_CallBack(void);
void BSP_AUDIO_IN_TransferComplete_CallBackEx(uint32_t InputDevice);
void BSP_AUDIO_IN_HalfTransfer_CallBackEx(uint32_t InputDevice);
/* This function is called when an Interrupt due to transfer error on or peripheral
error occurs. */
void BSP_AUDIO_IN_Error_Callback(void);
/* These function can be modified in case the current settings (e.g. DMA stream)
need to be changed for specific application needs */
uint8_t BSP_AUDIO_IN_ClockConfig(uint32_t AudioFreq, void *Params);
void BSP_AUDIO_IN_MspInit(void *Params);
void BSP_AUDIO_IN_MspDeInit(void *Params);
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F413H_DISCOVERY_AUDIO_H */