Home

Welcome to the Const_DSP_I2S_DAC wiki!

Stm32 audio libraries:

• CMSIS DSP Lib
• stm32-audio100a
• X-CUBE-AUDIO-F7 ??

Reference documents

Reference projects

• Realtime-Audio-DSP Tutorial with the ARM STM32F4-Discovery Board
• [http://www.henryaudio.com/open-source.php](Henry Audio)
• Pavouk's audio widget USB to I2S
• Roman Async USB on stm32

Pitfalls

• the priority of the Tick_INT in stm32f4xx_hal_conf.h must be 0, and not 0x0F
• Variables that are modified in interrupt routines must be volatile, or it seems that the compiler performs optimizations that prevent the correct evaluation of conditions.

Modified files for Async USB:

usbd_audio.c this is the core file for the job usbd_conf.c for activating the SOF event

Miscellaneous

• Ring buffer example 1
• Ring buffer example 2