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Release Notes for STM32F4-Discovery Board Drivers

Copyright 2011 STMicroelectronics

 

Contents

  1. Update History
  2. License

Update History

For more information on the STM32F4-Discovery board visit www.st.com/stm32f4-discovery.

V1.1.1 / 30-December-2011

Main Changes

  • PDM Library moved from Utilities\STM32F4-Discovery to Utilities\STM32_Audio\Addons\PDM folder
  • All source files: update disclaimer to add reference to the new license agreement
  • stm32f4_discovery_audio_codec.c 
    • Audio_MAL_Init() function: DMA configuration changed as below
      • DMA_FIFOMode_Disable changed to DMA_FIFOMode_Enable
      • DMA_FIFOThreshold_1QuarterFull changed to DMA_FIFOThreshold_HalfFull

V1.1.0 / 28-October-2011

Main Changes

  • Add PDM audio software decoding Library drivers, used to decode and reconstruct the audio signal produced by MP45DT02 MEMS microphone from STMicroelectronics. For more details about this Library, please refer to document "PDM audio software decoding on STM32 microcontrollers (AN3998)".
  • stm32f4_discovery_audio_codec.c/.h: update to use DMA instead of Interrupt in I2S communication with the external codec.

V1.0.0 / 19-September-2011

Main Changes

  • First official version of the STM32F4-Discovery Board Drivers

License

The use of this STM32 Firmware is governed by the terms and conditions of the License Agreement available in the root of this package.


For complete documentation on STM32 Microcontrollers visit www.st.com/stm32