mirror of
https://github.com/STMicroelectronics/STM32CubeF4.git
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245 lines
7.8 KiB
C
245 lines
7.8 KiB
C
/**
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******************************************************************************
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* @file BSP/Src/audio_rec_dfsdm.c
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* @author MCD Application Team
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* @brief This example code shows how to use the audio feature in the
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* stm32412g_discovery driver
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include <stdio.h>
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#include "string.h"
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/** @addtogroup STM32F4xx_HAL_Examples
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* @{
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*/
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/** @addtogroup BSP
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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typedef enum
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{
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BUFFER_OFFSET_NONE = 0,
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BUFFER_OFFSET_HALF = 1,
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BUFFER_OFFSET_FULL = 2,
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}BUFFER_StateTypeDef;
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extern AUDIO_ErrorTypeDef AUDIO_Start(uint32_t audio_start_address, uint32_t audio_file_size);
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/* Private define ------------------------------------------------------------*/
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#define AUDIO_BLOCK_SIZE ((uint32_t)0xFFFE)
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#define HEADBAND_HEIGHT 64
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#define SCRATCH_BUFF_SIZE 512
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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#if defined ( __CC_ARM ) /* !< ARM Compiler */
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int32_t Scratch [SCRATCH_BUFF_SIZE] __attribute__((at(0x2000E000)));
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#elif defined ( __ICCARM__ ) /* !< ICCARM Compiler */
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#pragma location=0x2000E000
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int32_t Scratch [SCRATCH_BUFF_SIZE];
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#elif defined ( __GNUC__ ) /* !< GNU Compiler */
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int32_t Scratch [SCRATCH_BUFF_SIZE] __attribute__((section(".scratch_section")));
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#endif
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extern uint16_t internal_buffer[AUDIO_BLOCK_SIZE];
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/* Global variables ---------------------------------------------------------*/
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extern uint32_t audio_rec_buffer_state; /* defined in audio_rec_analog.c */
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/* Private function prototypes -----------------------------------------------*/
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static void AudioRec_SetHint(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Audio Play demo
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* @param None
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* @retval None
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*/
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void AudioRecDfsdm_demo (void)
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{
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AudioRec_SetHint();
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uint8_t next_freq = 0;
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uint8_t end_of_test = 0;
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JOYState_TypeDef JoyState = JOY_NONE;
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__IO uint32_t uwVolume = 70;
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uint32_t AudioFreq[8] = {I2S_AUDIOFREQ_8K ,I2S_AUDIOFREQ_11K, I2S_AUDIOFREQ_16K, I2S_AUDIOFREQ_22K, I2S_AUDIOFREQ_32K, I2S_AUDIOFREQ_44K, I2S_AUDIOFREQ_48K, I2S_AUDIOFREQ_96K};
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uint32_t *AudioFreq_ptr;
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uint8_t FreqStr[25] = {0};
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AudioFreq_ptr = AudioFreq + 6; /*I2S_AUDIOFREQ_48K*/
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BSP_JOY_Init(JOY_MODE_GPIO);
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while (end_of_test == 0)
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{
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
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BSP_LCD_FillRect(0, HEADBAND_HEIGHT, BSP_LCD_GetXSize(), BSP_LCD_GetYSize() - HEADBAND_HEIGHT);
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BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 160, (uint8_t *)"TOP MP34 MICROPHONES TEST", CENTER_MODE);
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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sprintf((char*)FreqStr," FREQ: %lu ", *AudioFreq_ptr);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 145, (uint8_t *)FreqStr, CENTER_MODE);
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/* Allocate channel buffer scratch */
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BSP_AUDIO_IN_AllocScratch (Scratch, SCRATCH_BUFF_SIZE);
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/* Initialize Audio Recorder */
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if (BSP_AUDIO_IN_Init(*AudioFreq_ptr, DEFAULT_AUDIO_IN_BIT_RESOLUTION, DEFAULT_AUDIO_IN_CHANNEL_NBR) != AUDIO_OK)
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{
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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BSP_LCD_SetTextColor(LCD_COLOR_RED);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 130, (uint8_t *)"Audio record init FAIL", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 115, (uint8_t *)"Try to reset board ", CENTER_MODE);
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BSP_AUDIO_IN_DeInit();
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}
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else
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{
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 130, (uint8_t *)"Audio record init OK", CENTER_MODE);
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audio_rec_buffer_state = BUFFER_OFFSET_NONE;
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/* Display the state on the screen */
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 115, (uint8_t *)"Buffering...", CENTER_MODE);
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/* Start Recording */
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BSP_AUDIO_IN_Record(internal_buffer, AUDIO_BLOCK_SIZE);
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 85, (uint8_t *)"Start Playback...", CENTER_MODE);
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/* -----------Start Playback -------------- */
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/* Initialize audio IN at REC_FREQ*/
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BSP_AUDIO_OUT_Init(OUTPUT_DEVICE_HEADPHONE, uwVolume, *AudioFreq_ptr);
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/* Play the recorded buffer*/
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BSP_AUDIO_OUT_Play((uint16_t*)(&internal_buffer[0]), AUDIO_BLOCK_SIZE * 2);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 70, (uint8_t *)"Streaming to headphones", CENTER_MODE);
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}
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next_freq = 0;
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while (next_freq == 0)
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{
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/* Insert 100 ms delay */
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HAL_Delay(100);
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/* Get the Joystick State */
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JoyState = BSP_JOY_GetState();
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switch(JoyState)
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{
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case JOY_UP:
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/* Increase volume by 5% */
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if (uwVolume < 95)
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uwVolume += 5;
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else
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uwVolume = 100;
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BSP_AUDIO_OUT_SetVolume(uwVolume);
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break;
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case JOY_DOWN:
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/* Decrease volume by 5% */
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if (uwVolume > 5)
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uwVolume -= 5;
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else
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uwVolume = 0;
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BSP_AUDIO_OUT_SetVolume(uwVolume);
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break;
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case JOY_LEFT:
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/*Decrease Frequency */
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if (*AudioFreq_ptr != 8000)
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{
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AudioFreq_ptr--;
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next_freq = 1;
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}
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break;
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case JOY_RIGHT:
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/* Increase Frequency */
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if (*AudioFreq_ptr != 96000)
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{
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AudioFreq_ptr++;
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next_freq = 1;
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}
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break;
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default:
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break;
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}
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if (CheckForUserInput() > 0)
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{
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end_of_test = 1;
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/* Stop Player before close Test */
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BSP_AUDIO_OUT_Stop(CODEC_PDWN_HW);
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BSP_AUDIO_OUT_DeInit();
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BSP_AUDIO_IN_Stop();
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BSP_AUDIO_IN_DeInit();
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return;
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}
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}
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/* Stop Player before close Test */
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BSP_AUDIO_OUT_Stop(CODEC_PDWN_HW);
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BSP_AUDIO_OUT_DeInit();
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BSP_AUDIO_IN_Stop();
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BSP_AUDIO_IN_DeInit();
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}
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}
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/**
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* @brief Display Audio Record demo hint
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* @param None
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* @retval None
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*/
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static void AudioRec_SetHint(void)
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{
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/* Clear the LCD */
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BSP_LCD_Clear(LCD_COLOR_WHITE);
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/* Set Audio Demo description */
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), HEADBAND_HEIGHT);
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BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
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BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
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BSP_LCD_SetFont(&Font16);
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BSP_LCD_DisplayStringAt(0, 1, (uint8_t *)"AUDIO REC DFSDM", CENTER_MODE);
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BSP_LCD_SetFont(&Font12);
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BSP_LCD_DisplayStringAt(0, 20, (uint8_t *)"Record and play audio", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, 35, (uint8_t *)"stream from microphones", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, 50, (uint8_t *)"Press BUTTON for next", CENTER_MODE);
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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