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116 lines
4.7 KiB
Plaintext
116 lines
4.7 KiB
Plaintext
/**
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@page BSP Example on how to use the BSP drivers
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@verbatim
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******************** (C) COPYRIGHT 2017 STMicroelectronics *******************
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* @file BSP/readme.txt
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* @author MCD Application Team
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* @brief Description of the BSP example.
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******************************************************************************
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*
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* Copyright (c) 2017 STMicroelectronics. All rights reserved.
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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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@endverbatim
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@par Example Description
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This example provides a description of how to use the different BSP drivers.
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At the beginning of the main program the HAL_Init() function is called to reset
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all the peripherals.
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Then the SystemClock_Config() function is used to configure the systemclock (SYSCLK)
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to run at 100 MHz.
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This example shows how to use the different functionalities listed below by
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switching between all tests using USER button.
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- For Rev.A boards:
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- Accelerometer LSM303DLHC
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- Gyroscope L3GD20
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- Audio device CS43L22
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- ST MEMS microphone MP45DT02TR-M
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- For Rev.C boards:
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- Accelerometer LSM303AGR
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- Gyroscope I3G4250D
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- Audio device CS43L22
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- ST MEMS microphone IMP34DT05TR
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First, push the User button to start first Test.
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4 LEDs will blink between each test.Press user key to start another test:
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1) ACCELEROMETER_MEMS_Test. Device: "LSM303DLHC" / "LSM303AGR"
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LEDs 3,4,5 and 6 show board orientation (X and Y axes).
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2) GYROSCOPE_MEMS_Test. Device: "L3GD20" / "I3G4250D"
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LEDs 3,4,5 and 6 show board movement (X and Y axes).
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3) AudioPlay_Test(Need headphone). Device: "CS43L22"
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Plug a headphone to hear a 48K sound /!\ Take care of yours ears.
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Default volume is 50%.
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A click on the board will pause the audio file play (LED6 & LED4 ON).
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Another click resumes audio file play (only LED6 on)
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@Note: Copy file "/Utilities/Media/Audio/art_of_gard_128K.bin" directly
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in the STM32 flash at @0x08020000
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4) AudioRecord_Test. Device: "MP45DT02TR-M" / "IMP34DT05TR"
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Record your voice (2 or 3 secs)
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When LED6 turns on, Plug a headphone to hear a 16K sound /!\ Take care of yours ears.
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Default volume is 70%.
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@note Care must be taken when using HAL_Delay(), this function provides accurate delay (in milliseconds)
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based on variable incremented in SysTick ISR. This implies that if HAL_Delay() is called from
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a peripheral ISR process, then the SysTick interrupt must have higher priority (numerically lower)
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than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
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To change the SysTick interrupt priority you have to use HAL_NVIC_SetPriority() function.
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@note The application needs to ensure that the SysTick time base is always set to 1 millisecond
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to have correct HAL operation.
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@par Keywords
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BSP, LCD, Touchscreen, PSRAM, DMA, QSPI, Erase, Read, Write, Audio play, Record, MEMS, Audio Codec, DFSDM,
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I2S, Microphone, Headphones
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@par Directory contents
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- BSP/Src/system_stm32f4xx.c STM32F4xx system clock configuration file
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- BSP/Src/main.c Main program
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- BSP/Src/mems.c Mems example and configuration file
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- BSP/Src/audio_play.c Audio play file
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- BSP/Src/audio_record.c Audio record file
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- BSP/Src/stm32f4xx_it.c Interrupt handlers
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- BSP/Inc/main.h Main program header file
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- BSP/Inc/mems.h Mems example and configuration header file
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- BSP/Inc/audio_play.h Audio play header file
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- BSP/Inc/audio_record.h Audio record header file
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- BSP/Inc/stm32f4xx_hal_conf.h HAL configuration file
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- BSP/Inc/stm32f4xx_it.h Interrupt handlers header file
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@par Hardware and Software environment
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- This example runs on and STM32F411xE devices.
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- This example has been tested with STMicroelectronics STM32F411E-Discovery
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board and can be easily tailored to any other supported device and development board.
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- Use STLink utility, available on www.st.com or any other in system programming
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tool to load "/Utilities/Media/Audio/art_of_gard_448K.bin" file to the STM32
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internal flash at the address 0x08020000.
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@par How to use it ?
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In order to make the program work, you must do the following :
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- Open your preferred toolchain
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- Rebuild all files and load your image into target memory
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- Run the example
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* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
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*/
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