Senior Design: Sound Monitor / 4951

Team Riedel - display

Dependencies:   LCD_fonts SPI_TFT_ILI9341 CMSIS_DSP_401_without_cm4 mbed-src SDFileSystem wavfile

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Private Functions
Functions

Private Functions
[STM32L476G-DISCOVERY AUDIO]

Functions

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.
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).
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.
void AudioRecord_TransferComplete_CallBack (void)
 Callback function invoked when half of the PCM samples have been DM Atransfered from the DFSDM channel.
void AudioRecord_HalfTransfer_CallBack (void)
 Callback function invoked when all the PCM samples have been DMA transfered from the DFSDM channel.
void AudioRecord_Error_CallBack (void)
 Callback function invoked when an error occured durint he DMA transfer of the PCM samples from the DFSDM channel.

Function Documentation

static uint8_t AUDIO_DFSDMx_DeInit ( void   ) [static]

De-initializes the Digital Filter for Sigma-Delta Modulators interface (DFSDM).

Return values:
BSPAUDIO status

Definition at line 881 of file stm32l476g_discovery_audio.cpp.

static uint8_t AUDIO_DFSDMx_Init ( uint32_t  AudioFreq ) [static]

Initializes the Digital Filter for Sigma-Delta Modulators interface (DFSDM).

Parameters:
AudioFreq,:Audio frequency to be used to set correctly the DFSDM peripheral.
Return values:
BSPAUDIO status

Definition at line 818 of file stm32l476g_discovery_audio.cpp.

static uint8_t AUDIO_SAIPLLConfig ( uint32_t  Frequency ) [static]

Configures the SAI PLL clock according to the required audio frequency.

Parameters:
Frequency,:Audio frequency.
Return values:
BSPAUDIO status
Note:
The SAI PLL input clock must be configured in the user application. The SAI PLL configuration done within this function assumes that the SAI PLL input clock runs at 8 MHz.

Definition at line 1024 of file stm32l476g_discovery_audio.cpp.

static uint8_t AUDIO_SAIx_DeInit ( void   ) [static]

De-initializes the Audio Codec audio interface (SAI).

Return values:
BSPAUDIO status

Definition at line 696 of file stm32l476g_discovery_audio.cpp.

static uint8_t AUDIO_SAIx_Init ( uint32_t  AudioFreq ) [static]

Initializes the Audio Codec audio interface (SAI).

Parameters:
AudioFreq,:Audio frequency to be configured for the SAI peripheral.
Note:
The default SlotActive configuration is set to CODEC_AUDIOFRAME_SLOT_0123 and user can update this configuration using
Return values:
BSPAUDIO status

Definition at line 630 of file stm32l476g_discovery_audio.cpp.

void AudioRecord_Error_CallBack ( void   )

Callback function invoked when an error occured durint he DMA transfer of the PCM samples from the DFSDM channel.

Parameters:
None
Return values:
None

Definition at line 1097 of file stm32l476g_discovery_audio.cpp.

void AudioRecord_HalfTransfer_CallBack ( void   )

Callback function invoked when all the PCM samples have been DMA transfered from the DFSDM channel.

Parameters:
None
Return values:
None

Definition at line 1086 of file stm32l476g_discovery_audio.cpp.

void AudioRecord_TransferComplete_CallBack ( void   )

Callback function invoked when half of the PCM samples have been DM Atransfered from the DFSDM channel.

Parameters:
None
Return values:
None

Definition at line 1072 of file stm32l476g_discovery_audio.cpp.

void HAL_DFSDM_ChannelMspDeInit ( DFSDM_Channel_HandleTypeDef *  hdfsdm_channel )

De-initializes the DFSDM channel MSP.

Parameters:
hdfsdm_channel: DFSDM channel handle.
Return values:
None

Definition at line 940 of file stm32l476g_discovery_audio.cpp.

void HAL_DFSDM_ChannelMspInit ( DFSDM_Channel_HandleTypeDef *  hdfsdm_channel )

Initializes the DFSDM channel MSP.

Parameters:
hdfsdm_channel: DFSDM channel handle.
Return values:
None

Definition at line 916 of file stm32l476g_discovery_audio.cpp.

void HAL_DFSDM_FilterMspDeInit ( DFSDM_Filter_HandleTypeDef *  hdfsdm_filter )

De-initializes the DFSDM filter MSP.

Parameters:
hdfsdm_filter: DFSDM filter handle.
Return values:
None

Definition at line 1004 of file stm32l476g_discovery_audio.cpp.

void HAL_DFSDM_FilterMspInit ( DFSDM_Filter_HandleTypeDef *  hdfsdm_filter )

Initializes the DFSDM filter MSP.

Parameters:
hdfsdm_filter: DFSDM filter handle.
Return values:
None

Definition at line 965 of file stm32l476g_discovery_audio.cpp.

void HAL_SAI_MspDeInit ( SAI_HandleTypeDef *  hsai )

SAI MSP De-init.

Parameters:
hsai: pointer to a SAI_HandleTypeDef structure
Return values:
None

Definition at line 776 of file stm32l476g_discovery_audio.cpp.

void HAL_SAI_MspInit ( SAI_HandleTypeDef *  hsai )

SAI MSP Init.

Parameters:
hsai: pointer to a SAI_HandleTypeDef structure
Return values:
None

Definition at line 721 of file stm32l476g_discovery_audio.cpp.

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