FAQ: [#6888] Under run and over run may happen for ad1836/ad1938 in 2011r1(2011)

Document created by Aaronwu Employee on Sep 12, 2013
Version 1Show Document
  • View in full screen mode

[#6888] Under run and over run may happen for ad1836/ad1938 in 2011r1

Submitted By: Vivi Li

Open Date

2011-11-18 02:01:09    

Priority:

Medium     Assignee:

Scott Jiang

Status:

Open     Fixed In Release:

N/A

Found In Release:

2011R1     Release:

Category:

N/A     Board:

N/A

Processor:

BF537     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Assigned (Not Start)

Uboot version or rev.:

    Toolchain version or rev.:

gcc4.3-2011R1-RC2

App binary format:

N/A     

Summary: Under run and over run may happen for ad1836/ad1938 in 2011r1

Details:

 

I can see under run happen on regression machine for ad1836 on bf537-stamp.

On bf533-stamp, overrun may happen.

 

Bellow is the log on 537-stamp. It's difficult to reproduce on bf537.

--

root:/> arecord -f S24_LE -r 48000 -c 1 -t wav -d 5|aplay

Recording WAVE 'stdin' : Signed 24 bit Little Endian, Rate 48000 Hz, Mono

Playing WAVE 'stdin' : Signed 24 bit Little Endian, Rate 48000 Hz, Mono

tx dma is already stopped

tx dma is already stopped

tx dma is already stopped

tx dma is already stopped

tx dma is already stopped

sport status error: TUVF

sport status error: TUVF

root:/>

--

 

Bellow is the log on bf533-stamp.

--

root:/> arecord  -f S32_LE -r 48000 -c 1 -t wav -d 5|aplay

Recording WAVE 'stdin' : Signed 32 bit Little Endian, Rate 48000 Hz, Mono

Playing WAVE 'stdin' : Signed 32 bit Little Endian, Rate 48000 Hz, Mono

overrun!!! (at least 0.030 ms long)

root:/>

--

 

Follow-ups

 

--- Vivi Li                                                  2011-11-22 03:22:39

Under run may also happen with ad1938 on bf537-stamp.

 

--

arecord  -f S16_LE -r 48000 -c 2 -t wav -d 5|aplay

Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

Playing WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

sport status error: TUVF

root:/>

--

 

 

 

    Files

    Changes

    Commits

    Dependencies

    Duplicates

    Associations

    Tags

 

File Name     File Type     File Size     Posted By

No Files Were Found

Attachments

    Outcomes