From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josef Angermeier Date: Tue, 28 Feb 2006 09:56:06 +0100 Subject: [U-Boot-Users] Re: Re: Rx-buffer overlow In-Reply-To: <20060228084306.AEAC813590@sc8-sf-spam2.sourceforge.net> References: <20060228084306.AEAC813590@sc8-sf-spam2.sourceforge.net> Message-ID: <20060228085606.GB4849@false> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de > In message <20060228081735.GA4849@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