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Release Notes for STM32F401-Discovery Board Drivers

Copyright © 2017 STMicroelectronics

 

The BSP (Board Specific Package) drivers are parts of the STM32Cube package based on the HAL drivers and provide a set of high level APIs relative to the hardware components and features in the evaluation boards, discovery kits and nucleo boards coming with the STM32Cube package for a given STM32 serie.

The BSP drivers allow a quick access to the boards’ services using high level APIs and without any specific configuration as the link with the HAL and the external components is done in intrinsic within the drivers.

From project settings points of view, user has only to add the necessary driver’s files in the workspace and call the needed functions from examples. However some low level configuration functions are weak and can be overridden by the applications if user wants to change some BSP drivers default behavior.

Update History

V2.2.3 / 21-September-2017

Main Changes

  • Remove date & version
  • Add general description of BSP drivers
  • stm32f401_discovery_audio.c/.h:
    • Aligned with PDM library v3.0.0 
  • Notes:
    • This version must be used with v3.0.0 of PDM library

V2.2.2 / 27-January-2017

Main Changes

  • Replace __PPP_CLK_ENABLE/DISABLE with __HAL_RCC_PPP_ENABLE/DISABLE
  • Add BSP_AUDIO_OUT_ClockConfig, BSP_AUDIO_OUT_MspInit and BSP_AUDIO_OUT_MspDeInit as weak functions
  • Add BSP_AUDIO_IN_ClockConfig, BSP_AUDIO_IN_MspInit and BSP_AUDIO_IN_MspDeInit as weak functions

V2.2.1 / 12-January-2016

Main Changes

  • General updates to fix doxygen errors
  • Add STM32F401-Discovery_BSP_User_Manual.chm file
  • stm32f401_discovery_audio.c
    • BSP_AUDIO_OUT_Init() update to configure correctly the PLL I2S parameters

V2.2.0 / 14-August-2015

Main Changes

  • stm32f401_discovery.c
    • Add AUDIO_IO_DeInit() function to align with BSP Components Common drivers V4.0.0

V2.1.3 / 02-March-2015

Main Changes

  • stm32f401_discovery.c/.h
    • Align to STM32F4xx HAL Driver V1.3.0 for __HAL_RCC_PPP_CLK_ENABLE() .

V2.1.2 / 10-December-2014

Main Changes

  • stm32f401_discovery_accelerometer.h, stm32f401_discovery_audio.h and stm32f401_discovery_gyroscope.h:
    • Change "\" by "/" in the include path to fix compilation issue under Linux

V2.1.1 / 26-June-2014

Main Changes

  • stm32f401_discovery_audio.c/.h
    • BSP_AUDIO_OUT_Play(): uses the buffer size in byte instead of half-word
    • BSP_AUDIO_IN_PDMToPCM(): duplicates samples to make stereo audio stream (since a single microphone in mounted on STM32F401-Discovery)
    • I2S2_Init(): configures the I2S to clock the microphone at 1.024 MHz as required instead of 2.048MHz

V2.1.0 / 19-June-2014

Main Changes

  • stm32f401_discovery.c/.h
    • Enhance BSP_PB_Init() function by removing the call of __SYSCFG_CLK_ENABLE() already enabled in the HAL_GPIO_Init()
  • stm32f401_discovery_audio.c/.h
    • Add note that only the audio stereo format is supported
  • stm32f401_discovery_gyroscope.c/.h
    • Update BSP_GYRO_Init() to support new L3GD20 device ID (I_AM_L3GD20_TR)
  • Comments clean up and typo corrections

V2.0.0 / 18-February-2014

Main Changes

  • Major update based on STM32Cube specification: drivers architecture and APIs modified vs. V1.0.1, and thus the 2 versions are not compatible.
  • This version has to be used only with STM32CubeF4 based development

V1.0.1 / 14-November-2013

Main Changes

  • stm32f429i_discovery_l3gd20.c : Set SPI baudrate to 5.25 MHz to fit Gyroscope timing characteristics (Gyroscope l3gd20 SPI interface max baud rate is 10MHz for write/read)

V1.0.0 / 11-September-2013

Main Changes

  • First official version of the STM32F401-Discovery Board Drivers

License

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       from this software without specific prior written permission.

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For complete documentation on STM32 Microcontrollers visit www.st.com/STM32