tdm_audio/README

   1 -------------------------------------------------------------------------------
   2 TDM Audio
   3 -------------------------------------------------------------------------------
   4
   5 This is a set of captures of TDM audio.
   6
   7 Details:
   8 https://hackaday.io/project/2984-teensy-audio-library/log/57537-tdm-support-for-many-channel-audio-io
   9 https://www.analog.com/media/en/technical-documentation/technical-articles/MS-2275.pdf
  10
  11
  12 Logic analyser setup
  13 --------------------
  14
  15 The logic analyser used was a Saleae Logic16 (at 50MHz):
  16
  17   Probe       TDM Audio
  18   ---------------------
  19   3           Bitclk
  20   2           Framesync
  21   1           Data
  22
  23
  24 tdm-4ch-16bit-cap1.sr
  25 ---------------------
  26
  27 4 channels, 16 bits per sample.
  28 Data is set of 0x1100 0x3322 0x5544 0x7766 0x9988 0xbbaa 0xddcc 0xffee.
  29
  30
  31 tdm-8ch-16bit-cap1.sr
  32 ---------------------
  33
  34 8 channels, 16 bits per sample
  35 Data is byte 0x12 repeated.