A link to and record of the current das uboot for the 537Stamp. das Uboot
The board, at the moment, is three shades of useless as we don't have any audio i/o. We'll use this ad73311 codec
And here's the datasheet
for said codec, from the stamp add-on audio board.
Charlton All Saints village website
Gave me a chance to get hold of the codeigniter framework.
Is that you mother?
The AD73311 codec has its own internal differential amplifier which means we can simply hook up an old headset speaker (+ 1off 150R res) straight across pins 1&2. It might be bit rough and ready, but we've got audio and it frees up a scope probe.
SPORT to CODEC
Here's a grab of the connections required to get our 537 talking to the AD73311.
A 16M384Hz VXCO is used for the MCLK. RS Part No 672-0845.
Kernel has been modified to include ALSA support for AD73311.
Don't forget to modprode snd-ad73311 AND snd-pcm-oss otherwise it won't work.
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