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SourceVuSTM32 Libraries and SamplesAudio_playback_and_record

Audio_playback_and_record sample

Audio_playback_and_record is a sample project defining the following symbols:

Most used functions

Name
Location
Summary
This function handles NMI exception.
This function handles Hard Fault exception.
This function handles Debug Monitor exception.
This function handles Memory Manage exception.
This function handles Bus Fault exception.
This function handles Usage Fault exception.
This function handles SysTick Handler.
This function handles SVCall exception.
This function handles PendSVC exception.
Main program
Initializes a Drive
Gets Disk Status
Reads Sector(s)
Writes Sector(s)
I/O control operation
This function handles USB-On-The-Go FS/HS global interrupt request.
Toggles LEDs to show user input state.
Performs the TS calibration
check if the TS is calibrated
Calibrate Y position
Calibrate x position (to obtain X = calibrated(x))
This function handles External line 2 interrupt request.
Manages AUDIO Menu Process.
This function handles DMA1 Stream 2 interrupt request.
Gets Wav Object Number.
Starts Audio streaming.
Initializes the USB KEY Storage.
Shows audio file (*.wav) on the root
Stops Audio streaming.
Initializes Audio Interface.
Copies disk content in the explorer list.
Manages Audio process.
Manages Audio process.
Starts Audio streaming.
Static Functions Changes the selection mode.
Clears the text zone.
TouchScreen_Calibration_WaitForPressedState : wait until a particular press/depress action The function is managing anti-rebound : that is the awaited state when detected needs to be stable for a sufficient time (timeout time), otherwise a new sense to search for awaited state is performed. When awaited state is found and state is stable for timeout duration, the function is exited.
Test touch screen state and modify audio state machine according to that
Static Function Audio Application Init.
User Process
System Clock Configuration The system Clock is configured as follow : System Clock source = PLL (HSE) SYSCLK(Hz) = 168000000 HCLK(Hz) = 168000000 AHB Prescaler = 1 APB1 Prescaler = 4 APB2 Prescaler = 2 HSE Frequency(Hz) = 8000000 PLL_M = 8 PLL_N = 336 PLL_P = 2 PLL_Q = 7 VDD(V) = 3.3 Main regulator output voltage = Scale1 mode Flash Latency(WS) = 5
Display calibration hint
Get Physical position
Static Functions Gets the file info.
Initializes the Wave player.
Display interface touch screen buttons
Static Functions Encoder initialization.
Initialize the wave header file
Initialize the wave header file
Display interface touch screen buttons

Other commonly used symbols

Name
Location
Summary
Internal High Speed oscillator (HSI) value. This value is used by the RCC HAL module to compute the system frequency (when HSI is used as system clock source, directly or through the PLL). Value of the Internal oscillator in Hz
Default value of the External oscillator in Hz
Miscellaneous Configuration *********************** Vector Table base offset field. This value must be a multiple of 0x200.
@file Audio/Audio_playback_and_record/Inc/main.h @author MCD Application Team Header for main.c module @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.
@file Audio/Audio_playback_and_record/Inc/stm32f4xx_it.h @author MCD Application Team This file contains the headers of the interrupt handlers. @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.
Uncomment the line below to expanse the "assert_param" macro in the HAL drivers code
External clock source for I2S peripheral This value is used by the I2S HAL module to compute the I2S clock source frequency, this source is inserted directly through I2S_CKIN pad. Value of the external oscillator in Hz
tick interrupt priority
Internal Low Speed oscillator (LSI) value. LSI Typical Value in Hz
External Low Speed oscillator (LSE) value. Value of the External Low Speed oscillator in Hz
Time out for HSE start up, in ms
Time out for LSE start up, in ms
@file stm32f4xx_hal_conf.h @author MCD Application Team HAL configuration file. @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.
This is the list of modules to be used in the HAL driver
This is the HAL system configuration section Value of VDD in mv
Portions COPYRIGHT 2017 STMicroelectronics Copyright (C) 2017, ChaN, all right reserved. @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.
@file USB_Host/MSC_Standalone/Inc/usbh_conf.h @author MCD Application Team General low level driver configuration @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.
@file Audio/Audio_playback_and_record/Inc/lcd_log_conf.h @author MCD Application Team LCD Log configuration file. @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.
@file usbh_diskio_dma.h @author MCD Application Team Header for usbh_diskio_dma.c module. @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.
@file Audio/Audio_playback_and_record/Inc/waveplayer.h @author MCD Application Team Header for waveplayer.c module. @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.
@file Audio/Audio_playback_and_record/Inc/waverecorder.h @author MCD Application Team Header for waverecorder.c module. @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.

Dependencies