[#5399] no sound when record in board and listen in PC for linphone test of ad1836 on bf533-stamp
Submitted By: Vivi Li
2009-07-27 07:21:49 Close Date
Medium High Assignee:
Closed Fixed In Release:
Found In Release:
BF533 Silicon Revision:
Is this bug repeatable?:
Uboot version or rev.:
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App binary format:
Summary: no sound when record in board and listen in PC for linphone test of ad1836 on bf533-stamp
Linphone test between PC and ad1836 on bf533-stamp, there is no sound when record in board and listen in PC side.
--- Barry Song 2009-08-03 02:48:45
Yes. I have repeated it. After connecting a call, from PC, we can only hear the
audio from target for 2-3 seconds, then no sound again. Using ad1980 to run the
same case, there is no this problem.
A simple debug shows capture DMA hasn't stopped after audio disappears using
AD1836. Let me check what's the reason.
--- Barry Song 2009-08-03 04:46:56
It should be a duplicate bug with the AD1836 record overrun and playback
underrun in bf533. After more careful debug, according to the flow trace,
capture overrun triggers the SNDRV_PCM_TRIGGER_STOP, but there is no
SNDRV_PCM_TRIGGER_START trigger again. So DMA stops and doesn't start again.
--- Barry Song 2009-08-03 05:02:51
Refer to the duplicate bug
[#3908] For BF533-STAMP with AD1836/AD73311/AD1981b, there will be under run or
--- Vivi Li 2009-08-13 07:15:18
So close this bug.
File Name File Type File Size Posted By
config.linphone_ad1836 application/octet-stream 31431 Vivi Li