Forum Rule: Always post complete source code & details to reproduce any issue!
Results 1 to 3 of 3

Thread: CS42448 boot issues

  1. #1

    CS42448 boot issues

    I'm working on a project with the CS42448 codec on a Teensy 4.0. As long as I flash the firmware after boot the audio system comes up but if I restart the board without being plugged into the computer the codec doesn't function until flashed again. Has anyone else run into this?

  2. #2
    Join Date
    Apr 2020
    You have to reset the codec and configure it after the teensy has been reset. Did you connect a pin on the teensy to control the codec reset?

  3. #3
    Ah, thanks. I have the CAT811 chip but it may not be wired properly. I'll hook that up to a free pin to have it boot after the teensy.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts