[alsa-devel] Help with SoC alsa.conf
Paul Kavan
pkavan at gmail.com
Thu Jun 21 19:10:56 CEST 2007
Some further looking has uncovered some strange behavior on the record side.
When I use
arecord -d5 -fS8 -r8000 -traw test.raw
and then look at the data and clock lines, I see that the pcm is not
functioning as designed. aplay works as advertised.
The frame sync line is at ground before the record, during the record it
cycles between 3.3 and 2.8 V with a rough square pattern at the bitclock
rate of 256k. Not sure if this is hw or sw...will continue to invesigate.
Paul
***************************************
Paul David Kavan
Project Engineer
GRH Electronics, Inc.
402-734-4900
pkavan at gmail.com
***************************************
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