2008-02-12 09:26:44 CPU clock Settings and Ethernet device
Thomas Sauter (GERMANY)
Message: 50935 hi,
I have changed the Blackfin Clock-Settings (225MHz Core Clock an 90 MHZ system Clock)
Now, I have problems with ethernet.
Every 4-6 hours the Ping RTP go up to >3sec and I have a lot of duplicate pakets. (BF537-stamp Board)
This last about ~5min.
any idea?
Thanks, thomas
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2008-02-13 03:30:35 Re: CPU clock Settings and Ethernet device
Yi Li (CHINA)
Message: 50974 Could you please confirm the "ping" issue does not happen with default BF537-STAMP clock setting (CCLK 500MHz, SCLCK 100MHz) on your board?
Also please post the error messages here.
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2008-02-20 02:31:31 Re: CPU clock Settings and Ethernet device
Thomas Sauter (GERMANY)
Message: 51312 sorry, no error messages.
My stamp board works fine with default settings (500MHz/100MHz). Normal RTP, no duplikate pakets.
I change the CCLK to 225MHz and the SCLK to 90MHz for example. (BF537-stamp uClinux-dist.R1.1-RC3)
From time to time (circa 4 hours) the rtp time increase to > 3sec. It takes ca. 10min.
Then the RTP normalize itself for the next period.
In this time, no error message on the board.
The load average is normal. write/read access seems to be normal.
I think, only the ethernet device has problems.
I checked it on two stamp-board. On both boards the same problems.
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2008-02-25 05:26:19 Re: CPU clock Settings and Ethernet device
Yi Li (CHINA)
Message: 51592 Could you please have a try with 2008R1 branch?
If the problem exists, could you please add a bug in the tracker? Or tell me enough information to report a bug (kernel, toolchain, how to reproduce..).
Thanks,
-Yi