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Re: lpc2478 eth 100M


The problem still ocurrs if setting system clock to 72M (which is 48M
before). If sending packets from equipment(ecos) to computer (by udp)
.  All packets are successfully received. If sending from computer to
ecos . Some irq does not occur. Some irq occurs but packets not be
transferred to my application. About 60% can be received.

2011/1/1 Nikolay Marusov <nmarusov@gmail.com>:
> 2010/12/31 cyl cyl <cylecos@gmail.com>:
>> Hi All:
>> ? ? ? I'm using ecos-3.0 + lpc2478. ?Now I have a problem. My eth can
>> only works well at 10 M . ? It losses a lot packages at 100 M .
>> FreeBSD stack .
>> Thank you for any suggestions!
>>
>> --
>> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
>> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
>>
>>
> It's most probably DMA problem:
> http://sourceware.org/ml/ecos-discuss/2009-06/msg00016.html
>
> Try to speed up the system clock.
>

--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss


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