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STM32412G-Discovery BSP User Manual
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This file provides the Audio driver for the STM32412G-DISCOVERY board. More...
#include "stm32412g_discovery_audio.h"
Go to the source code of this file.
Defines | |
| #define | DFSDM_OVER_SAMPLING(__FREQUENCY__) |
| #define | DFSDM_CLOCK_DIVIDER(__FREQUENCY__) |
| #define | DFSDM_FILTER_ORDER(__FREQUENCY__) |
| #define | DFSDM_MIC_BIT_SHIFT(__FREQUENCY__) |
| #define | SaturaLH(N, L, H) (((N)<(L))?(L):(((N)>(H))?(H):(N))) |
Functions | |
| static void | I2Sx_In_Init (uint32_t AudioFreq) |
| Initializes the Audio Codec audio interface (I2S) | |
| static void | I2Sx_In_DeInit (void) |
| Deinitializes the Audio Codec audio interface (I2S). | |
| static void | I2Sx_In_MspInit (void) |
| Initializes the I2S MSP. | |
| static void | I2Sx_In_MspDeInit (void) |
| De-Initializes the I2S MSP. | |
| static void | I2Sx_Out_Init (uint32_t AudioFreq) |
| Initializes the Audio Codec audio interface (I2S) | |
| static void | I2Sx_Out_DeInit (void) |
| Deinitializes the Audio Codec audio interface (I2S). | |
| static uint8_t | DFSDMx_DeInit (void) |
| De-initializes the Digital Filter for Sigma-Delta Modulators interface (DFSDM). | |
| static void | DFSDMx_ChannelMspInit (void) |
| Initializes the DFSDM channel MSP. | |
| static void | DFSDMx_ChannelMspDeInit (void) |
| DeInitializes the DFSDM channel MSP. | |
| static void | DFSDMx_FilterMspInit (void) |
| Initializes the DFSDM filter MSP. | |
| static void | DFSDMx_FilterMspDeInit (void) |
| DeInitializes the DFSDM filter MSP. | |
| uint8_t | BSP_AUDIO_OUT_Init (uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq) |
| Configures the audio peripherals. | |
| uint8_t | BSP_AUDIO_OUT_Play (uint16_t *pBuffer, uint32_t Size) |
| Starts playing audio stream from a data buffer for a determined size. | |
| void | BSP_AUDIO_OUT_ChangeBuffer (uint16_t *pData, uint16_t Size) |
| Sends n-Bytes on the I2S 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 played) the output target (speaker or headphone). | |
| void | BSP_AUDIO_OUT_SetFrequency (uint32_t AudioFreq) |
| Updates the audio frequency. | |
| void | BSP_AUDIO_OUT_DeInit (void) |
| Deinit the audio peripherals. | |
| void | HAL_I2S_TxCpltCallback (I2S_HandleTypeDef *hi2s) |
| Tx Transfer completed callbacks. | |
| void | HAL_I2S_TxHalfCpltCallback (I2S_HandleTypeDef *hi2s) |
| Tx Half Transfer completed callbacks. | |
| void | HAL_I2S_ErrorCallback (I2S_HandleTypeDef *hi2s) |
| I2S error callbacks. | |
| __weak void | BSP_AUDIO_OUT_TransferComplete_CallBack (void) |
| Manages the DMA full Transfer complete event. | |
| __weak void | BSP_AUDIO_OUT_HalfTransfer_CallBack (void) |
| Manages the DMA Half Transfer complete event. | |
| __weak void | BSP_AUDIO_OUT_Error_CallBack (void) |
| Manages the DMA FIFO error event. | |
| __weak void | BSP_AUDIO_OUT_MspInit (I2S_HandleTypeDef *hi2s, void *Params) |
| Initializes BSP_AUDIO_OUT MSP. | |
| __weak void | BSP_AUDIO_OUT_MspDeInit (I2S_HandleTypeDef *hi2s, void *Params) |
| Deinitializes I2S MSP. | |
| __weak void | BSP_AUDIO_OUT_ClockConfig (I2S_HandleTypeDef *hi2s, uint32_t AudioFreq, void *Params) |
| Clock Config. | |
| uint8_t | BSP_AUDIO_IN_Init (uint32_t AudioFreq, uint32_t BitRes, uint32_t ChnlNbr) |
| Initializes wave recording. | |
| uint8_t | BSP_AUDIO_IN_InitEx (uint32_t InputDevice, uint32_t AudioFreq, uint32_t BitRes, uint32_t ChnlNbr) |
| Initializes wave recording. | |
| void | BSP_AUDIO_IN_DeInit (void) |
| DeInitializes the audio peripheral. | |
| uint8_t | BSP_AUDIO_IN_ConfigMicDefault (uint32_t InputDevice) |
| Initializes default configuration of the Digital Filter for Sigma-Delta Modulators interface (DFSDM). | |
| __weak uint8_t | BSP_AUDIO_IN_ConfigDigitalMic (uint32_t InputDevice, void *Params) |
| Initializes the Digital Filter for Sigma-Delta Modulators interface (DFSDM). | |
| uint8_t | BSP_AUDIO_IN_AllocScratch (int32_t *pScratch, uint32_t size) |
| Allocate channel buffer scratch. | |
| uint8_t | BSP_AUDIO_IN_Record (uint16_t *pBuf, uint32_t size) |
| Starts audio recording. | |
| uint8_t | BSP_AUDIO_IN_RecordEx (uint32_t *pBuf, uint32_t size) |
| Starts audio recording. | |
| __weak void | BSP_AUDIO_IN_MspInit (void *Params) |
| Initializes BSP_AUDIO_IN MSP. | |
| __weak void | BSP_AUDIO_IN_MspDeInit (void *Params) |
| De-Initializes BSP_AUDIO_IN MSP. | |
| __weak uint8_t | BSP_AUDIO_IN_ClockConfig (uint32_t AudioFreq, void *Params) |
| Clock Config. | |
| 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_I2S_RxHalfCpltCallback (I2S_HandleTypeDef *hi2s) |
| Half reception complete callback. | |
| void | HAL_I2S_RxCpltCallback (I2S_HandleTypeDef *hi2s) |
| Reception complete callback. | |
| uint8_t | BSP_AUDIO_IN_Stop (void) |
| Stops audio recording. | |
| uint8_t | BSP_AUDIO_IN_StopEx (uint32_t InputDevice) |
| Stops audio recording. | |
| uint8_t | BSP_AUDIO_IN_Pause (void) |
| Pauses the audio file stream. | |
| uint8_t | BSP_AUDIO_IN_PauseEx (uint32_t InputDevice) |
| Pauses the audio file stream. | |
| uint8_t | BSP_AUDIO_IN_Resume (void) |
| Resumes the audio file stream. | |
| uint8_t | BSP_AUDIO_IN_ResumeEx (uint32_t *pBuf, uint32_t InputDevice) |
| Resumes the audio file stream. | |
| uint8_t | BSP_AUDIO_IN_SetVolume (uint8_t Volume) |
| Controls the audio in volume level. | |
| __weak void | BSP_AUDIO_IN_TransferComplete_CallBack (void) |
| User callback when record buffer is filled. | |
| __weak void | BSP_AUDIO_IN_HalfTransfer_CallBack (void) |
| Manages the DMA Half Transfer complete event. | |
| __weak void | BSP_AUDIO_IN_TransferComplete_CallBackEx (uint32_t InputDevice) |
| User callback when record buffer is filled. | |
| __weak void | BSP_AUDIO_IN_HalfTransfer_CallBackEx (uint32_t InputDevice) |
| User callback when record buffer is filled. | |
| __weak void | BSP_AUDIO_IN_Error_Callback (void) |
| Audio IN Error callback function. | |
Variables | |
| AUDIO_DrvTypeDef * | audio_drv |
| I2S_HandleTypeDef | haudio_i2s |
| I2S_HandleTypeDef | haudio_in_i2sext |
| AUDIOIN_ContextTypeDef | hAudioIn |
| DFSDM_Channel_HandleTypeDef | hAudioInDfsdmChannel [DFSDM_MIC_NUMBER] |
| DFSDM_Filter_HandleTypeDef | hAudioInDfsdmFilter [DFSDM_MIC_NUMBER] |
| DMA_HandleTypeDef | hDmaDfsdm [DFSDM_MIC_NUMBER] |
| int32_t * | pScratchBuff [DEFAULT_AUDIO_IN_CHANNEL_NBR] |
| int32_t | ScratchSize |
| uint32_t | DmaRecHalfBuffCplt [DFSDM_MIC_NUMBER] = {0} |
| uint32_t | DmaRecBuffCplt [DFSDM_MIC_NUMBER] = {0} |
| __IO uint32_t | AppBuffTrigger = 0 |
| __IO uint32_t | AppBuffHalf = 0 |
| __IO uint32_t | MicBuff [DFSDM_MIC_NUMBER] = {0} |
| __IO uint16_t | AudioInVolume = DEFAULT_AUDIO_IN_VOLUME |
Detailed Description
This file provides the Audio driver for the STM32412G-DISCOVERY board.
- Attention:
© COPYRIGHT(c) 2017 STMicroelectronics
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of STMicroelectronics nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Definition in file stm32412g_discovery_audio.c.
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