diff options
| -rw-r--r-- | tdm_audio/README | 35 | ||||
| -rw-r--r-- | tdm_audio/tdm-4ch-16bit-cap1.sr | bin | 0 -> 1053 bytes | |||
| -rw-r--r-- | tdm_audio/tdm-8ch-16bit-cap1.sr | bin | 0 -> 961 bytes |
3 files changed, 35 insertions, 0 deletions
diff --git a/tdm_audio/README b/tdm_audio/README new file mode 100644 index 0000000..c49e8ff --- /dev/null +++ b/tdm_audio/README @@ -0,0 +1,35 @@ +------------------------------------------------------------------------------- +TDM Audio +------------------------------------------------------------------------------- + +This is a set of captures of TDM audio. + +Details: +https://hackaday.io/project/2984-teensy-audio-library/log/57537-tdm-support-for-many-channel-audio-io +https://www.analog.com/media/en/technical-documentation/technical-articles/MS-2275.pdf + + +Logic analyser setup +-------------------- + +The logic analyser used was a Saleae Logic16 (at 50MHz): + + Probe TDM Audio + --------------------- + 3 Bitclk + 2 Framesync + 1 Data + + +tdm-4ch-16bit-cap1.sr +--------------------- + +4 channels, 16 bits per sample. +Data is set of 0x1100 0x3322 0x5544 0x7766 0x9988 0xbbaa 0xddcc 0xffee. + + +tdm-8ch-16bit-cap1.sr +--------------------- + +8 channels, 16 bits per sample +Data is byte 0x12 repeated. diff --git a/tdm_audio/tdm-4ch-16bit-cap1.sr b/tdm_audio/tdm-4ch-16bit-cap1.sr Binary files differnew file mode 100644 index 0000000..87dc181 --- /dev/null +++ b/tdm_audio/tdm-4ch-16bit-cap1.sr diff --git a/tdm_audio/tdm-8ch-16bit-cap1.sr b/tdm_audio/tdm-8ch-16bit-cap1.sr Binary files differnew file mode 100644 index 0000000..24089f2 --- /dev/null +++ b/tdm_audio/tdm-8ch-16bit-cap1.sr |