liushiwei / stm32f4_usbaudio

CHEAPEST USB ASYNC AUDIO USING STM32F401RB

CHEAPEST USB ASYNC AUDIO USING ST32F401RB CHIP

knows bugs:

• 1,if USB cable/plug is poor quality,audio may become noise when playing,and must stop or re-plug to fix it. It's cause by HW,and software cannot sence it happen,I think it cannot be fixed.

2022.5.28

• HW seprate folder,(only ak4396 is work done now,other working in process).
• remove LICENSE,it's only for fun.

2022.5.27

• improve usb setup--audio class,fix mute/vol,

2020to2021

• add many HW board configs

2019.12

• add 24bit, add 48/88/96k audio streaming formats.
• fix audio buffer overflow 2words

initial release

• support 32bit.44k format
• async using osc input to stm32f4 i2s_ckin pin,cpld device not required anymore. (please see the schemaitcs for more infomation).
• test with "xmos stereo driver",win10,linux.