[DNX#2006040142001392] [U-Boot-Users] Re: Re: Rx-buffer overlow

DENX Support System support at denx.de
Sat Apr 1 02:00:09 CEST 2006


Hello list,

inside the automatic U-Boot patch tracking system a new ticket
[DNX#2006040142001392] was created:

<snip>
> 
> > In message <20060228081735.GA4849 at false> you wrote:
> > >=20
> > > fec_recv[249] err: 802
> > > fec_recv[249] err: 2802
> > > fec_recv[249] err: 802
> > >=20
> > > According to the Rx-buffer-status bits, an overlow takes place. So ping
> > > just works if there is less network traffic.  But why ? - is the receiv=
> > e
> > > buffer to small, the CPU to slow ?=20
> 
> > At which clock frequency are you running your CPU?
> 
> the MPC875 is running at 40MHz! 
> 
> Btw, ethernet just works in 10MB half duplex mode (probably failure in
> hardware). Maybe this is also related to that problem!
> 
> U-Boot 1.1.3 (Feb 28 2006 - 09:27:50)
> 
> CPU:   MPC885ZPnn at 40 MHz [40.0...50.0 MHz]
>        8 kB I-Cache 8 kB D-Cache FEC present
>        You made sure it's an ESM this is running on, right?
>        DRAM:  64 MB
>        FLASH: 16 MB
>        In:    serial
>        Out:   serial
>        Err:   serial
>        Net:   FEC ETHERNET
> 
> > Best regards,
> > Wolfgang Denk
> 
> Best regards,
> Josef
> 
> 
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</snip>

Your U-Boot support team




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