[#5317] under run happens with ad1980 on bf548-ezkit

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[#5317] under run happens with ad1980 on bf548-ezkit

Submitted By: Vivi Li

Open Date

2009-07-07 02:00:24     Close Date

2009-07-14 00:25:37

Priority:

Medium     Assignee:

Cliff Cai

Status:

Closed     Fixed In Release:

N/A

Found In Release:

N/A     Release:

Category:

Drivers     Board:

EZKIT Lite

Processor:

BF548     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Fixed

Uboot version or rev.:

    Toolchain version or rev.:

gcc4.1_09r1-rc7

App binary format:

N/A     

Summary: under run happens with ad1980 on bf548-ezkit

Details:

 

under run happens in record and play audio with ad1980 on bf548-ezkit.

 

Bellow is the log:

--

root:/> arecord -t wav -c 2 -f S16_LE -r 8000 -d 5 |aplay^M

Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 8000 Hz, Stereo^M

sport status error: TUVF^M

Playing WAVE 'stdin' : Signed 16 bit Little Endian, Rate 8000 Hz, Stereo^M

root:/>

Case 13 ...PASS

 

Case 13 ...PASS

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

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

sport status error: TUVF^M

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

root:/>

--

 

Last passed version:

--

root:/> version^M

kernel:    Linux release 2.6.28.10-ADI-2009R1-svn6808, build #4 Sat Jun 20 15:01:47 GMT 2009^M

toolchain: bfin-linux-uclibc-gcc release gcc version 4.1.2 (ADI svn)^M

user-dist: release svn-8335, build #61 Sat Jun 20 15:00:19 GMT 2009^M

root:/>

--

After that, it first fail in bellow version:

--root:/> version^M

kernel:    Linux release 2.6.28.10-ADI-2009R1-svn6816, build #8 Mon Jun 22 01:28:46 GMT 2009^M

toolchain: bfin-linux-uclibc-gcc release gcc version 4.1.2 (ADI svn)^M

user-dist: release svn-8335, build #143 Mon Jun 22 01:27:18 GMT 2009^M

root:/>

--

 

Follow-ups

 

--- Cliff Cai                                                2009-07-07 22:26:57

It's a known issue.It seems that DMA of sport competes with core sometimes on

BF548.So following item shoule be selected

Blackfin Processor Options  --->

   BF548 Specific Configuration  --->

      [*] DMA has priority over core for ext. accesses 

 

Cliff

 

--- Vivi Li                                                  2009-07-14 00:25:37

OK now.

Close it.

 

 

 

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File Name     File Type     File Size     Posted By

config.audio_ad1980    application/octet-stream    40735    Vivi Li

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