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stm32l476g_discovery_audio.c File Reference
Functions

stm32l476g_discovery_audio.c File Reference

This file provides a set of functions needed to manage the Audio driver for the STM32L476G-Discovery board. More...

Go to the source code of this file.

Functions

static void AUDIO_CODEC_Reset (void)
 Resets the audio codec.
static uint8_t AUDIO_SAIx_Init (uint32_t AudioFreq)
 Initializes the Audio Codec audio interface (SAI).
static uint8_t AUDIO_SAIx_DeInit (void)
 De-initializes the Audio Codec audio interface (SAI).
static uint8_t AUDIO_DFSDMx_Init (uint32_t AudioFreq)
 Initializes the Digital Filter for Sigma-Delta Modulators interface (DFSDM).
static uint8_t AUDIO_DFSDMx_DeInit (void)
 De-initializes the Digital Filter for Sigma-Delta Modulators interface (DFSDM).
static uint8_t AUDIO_SAIPLLConfig (uint32_t Frequency)
 Configures the SAI PLL clock according to the required audio frequency.
uint8_t BSP_AUDIO_OUT_Init (uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq)
 Configures the audio codec related peripherals.
uint8_t BSP_AUDIO_OUT_DeInit (void)
 De-Initializes audio codec related peripherals.
uint8_t BSP_AUDIO_OUT_Play (uint16_t *pData, uint32_t Size)
 Starts playing audio stream from a data buffer for a determined size.
uint8_t BSP_AUDIO_OUT_ChangeBuffer (uint16_t *pData, uint16_t Size)
 Sends n-Bytes on the SAI interface.
uint8_t BSP_AUDIO_OUT_Pause (void)
 This function Pauses the audio file stream.
uint8_t BSP_AUDIO_OUT_Resume (void)
 This function Resumes the audio file stream.
uint8_t BSP_AUDIO_OUT_Stop (uint32_t Option)
 Stops audio playing and Power down the Audio Codec.
uint8_t BSP_AUDIO_OUT_SetVolume (uint8_t Volume)
 Controls the current audio volume level.
uint8_t BSP_AUDIO_OUT_SetMute (uint32_t Cmd)
 Enables or disables the MUTE mode by software.
uint8_t BSP_AUDIO_OUT_SetOutputMode (uint8_t Output)
 Switch dynamically (while audio file is being played) the output target (speaker or headphone).
uint8_t BSP_AUDIO_OUT_SetFrequency (uint32_t AudioFreq)
 Updates the audio frequency.
void BSP_AUDIO_OUT_ChangeAudioConfig (uint32_t AudioOutOption)
 Changes the Audio Out Configuration.
void BSP_AUDIO_OUT_RegisterCallbacks (Audio_CallbackTypeDef ErrorCallback, Audio_CallbackTypeDef HalfTransferCallback, Audio_CallbackTypeDef TransferCompleteCallback)
 register user callback functions
void HAL_SAI_TxCpltCallback (SAI_HandleTypeDef *hsai)
 Tx Transfer completed callbacks.
void HAL_SAI_TxHalfCpltCallback (SAI_HandleTypeDef *hsai)
 Tx Half Transfer completed callbacks.
void HAL_SAI_ErrorCallback (SAI_HandleTypeDef *hsai)
 SAI error callbacks.
uint8_t BSP_AUDIO_IN_Init (uint32_t AudioFreq, uint32_t BitRes, uint32_t ChnlNbr)
 Initializes micropone related peripherals.
uint8_t BSP_AUDIO_IN_DeInit (void)
 De-Initializes microphone related peripherals.
uint8_t BSP_AUDIO_IN_Record (uint16_t *pbuf, uint32_t size)
 Starts audio recording.
uint8_t BSP_AUDIO_IN_SetFrequency (uint32_t AudioFreq)
 Updates the audio frequency.
void HAL_DFSDM_FilterRegConvCpltCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
 Regular conversion complete callback.
void HAL_DFSDM_FilterRegConvHalfCpltCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
 Half regular conversion complete callback.
void HAL_DFSDM_FilterErrorCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
 Error callback.
uint8_t BSP_AUDIO_IN_Stop (void)
 Stops audio recording.
uint8_t BSP_AUDIO_IN_Pause (void)
 Pauses the audio file stream.
uint8_t BSP_AUDIO_IN_Resume (void)
 Resumes the audio file stream.
void BSP_AUDIO_IN_RegisterCallbacks (Audio_CallbackTypeDef ErrorCallback, Audio_CallbackTypeDef HalfTransferCallback, Audio_CallbackTypeDef TransferCompleteCallback)
 register user callback functions
void HAL_SAI_MspInit (SAI_HandleTypeDef *hsai)
 SAI MSP Init.
void HAL_SAI_MspDeInit (SAI_HandleTypeDef *hsai)
 SAI MSP De-init.
void HAL_DFSDM_ChannelMspInit (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
 Initializes the DFSDM channel MSP.
void HAL_DFSDM_ChannelMspDeInit (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
 De-initializes the DFSDM channel MSP.
void HAL_DFSDM_FilterMspInit (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
 Initializes the DFSDM filter MSP.
void HAL_DFSDM_FilterMspDeInit (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
 De-initializes the DFSDM filter MSP.

Detailed Description

This file provides a set of functions needed to manage the Audio driver for the STM32L476G-Discovery board.

Author:
MCD Application Team
Attention:

© Copyright (c) 2016 STMicroelectronics. All rights reserved.

This software component is licensed by ST under BSD 3-Clause license, the "License"; You may not use this file except in compliance with the License. You may obtain a copy of the License at: opensource.org/licenses/BSD-3-Clause

Definition in file stm32l476g_discovery_audio.c.

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