Diff: audio_if.h

Revision:

9:5a860b9c8a6a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/audio_if.h	Sun Dec 13 16:46:14 2015 +0000
@@ -0,0 +1,111 @@
+/**
+******************************************************************************
+* @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>&copy; 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 "mbed.h"
+#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****/
+