FDA

yet another FULL DIGITAL AUDIO project

create another FDA from scratch

my experience

• UAC2 project with FX2LP + CPLD
  • complete CPLD alpha version code but need more effect for tuning
  • complete FX2LP alpha version code, but need more debugging
  • not good for a share project, as the requirment of CPLD programming tool
• UAC2 project with ATMEL SAM3U
  • no opensouce fork, my code did not complete, only play 48K in UAC1 mode now
  • the chip is near EOL ?
• UAC2 project with ATMEL AT32U
  • fork from http://www.pavouk.org/hw/audiosystem20/at32uc3a3256usbi2s.html
  • the chip is near EOL, high cost
  • software ready to use

the goal of this project

• use STM32F4 to rebuild
  • popular chip, not expensive
  • ST released UAC sample code
  • firmware will be easy to install/upgrade with DFU tool and STM32 built-in boot loader

delivery

• share my information collection
• share schematic in PDF format
• share binary code