Audio Demo with DISCO Board, takes control samples, waits for user input, samples regularly.
Dependencies: CMSIS_DSP_401 STM32L4xx_HAL_Driver mbed-src_DISO_AUDIO_DEMO
audio_if.h
- Committer:
- EricLew
- Date:
- 2015-12-13
- Revision:
- 0:3eee9435dd17
File content as of revision 0:3eee9435dd17:
/** ****************************************************************************** * @file /Inc/audio_if.h * @author Central Labs * @version V1.0.0 * @date 7-May-2015 * @brief Header for audio_if.c file. ****************************************************************************** @attention * * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> * * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); * You may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.st.com/software_license_agreement_liberty_v2 * * 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. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __AUDIO_IF_H #define __AUDIO_IF_H /* Includes ------------------------------------------------------------------*/ #include "main.h" //#include "x_nucleo_cca02m1_audio_l4.h" #include "stm32l476g_discovery_audio.h" #include <cstdint> /* Exported types ------------------------------------------------------------*/ /* Exported constants --------------------------------------------------------*/ /* Exported macro ------------------------------------------------------------*/ /* Exported functions ------------------------------------------------------- */ extern int8_t Audio_Init(void); extern int8_t Audio_Record(uint16_t * recbuff); //extern int8_t Audio_VolumeCtl(int16_t Volume); //extern int8_t Audio_MuteCtl(uint8_t cmd); extern int8_t Audio_Stop(void); //extern int8_t Audio_Pause(void); //extern int8_t Audio_Resume(void); //extern int8_t Audio_CommandMgr(uint8_t cmd); //extern void AudioProcess(uint16_t * pbuf, uint16_t * recbuff); extern void PrintData(uint16_t * recbuff); extern void WriteData(uint16_t * recbuff); //void BSP_AUDIO_IN_HalfTransfer_CallBack(void); int rec(const char *filename, uint16_t * recbuff, uint16_t size); /** * @brief Sampling Frequency enumerator */ typedef enum { SAMPLING_FREQ_16000 = 16000, SAMPLING_FREQ_32000 = 32000, SAMPLING_FREQ_48000 = 48000 }OUTPUT_FREQ_TypeDef; #define RAM_TOTAL 0x1000 #define AUDIO_CHANNELS 1 #define AUDIO_SAMPLING_FREQUENCY 48000 #define PCM_TEMP_BUFF_SIZE AUDIO_SAMPLING_FREQUENCY/1000*1 #if defined(STM32L053xx) || defined(STM32F072xB) #if (AUDIO_CHANNELS > 2) #error "Acquisition of more than 2 microphone is not yet supported for STM32L0 and STM32F0" #elif (AUDIO_SAMPLING_FREQUENCY > 32000) #error "Acquisition of sampling frequencies above 32 KHz is not yet supported for STM32L0 and STM32F0" #elif (AUDIO_SAMPLING_FREQUENCY == 32000 && AUDIO_CHANNELS == 2) #error "These settings are not yet supported for STM32L0 and STM32F0" #endif #endif #endif /* __AUDIO_IF_H */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/