From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200011222214.eAMMEfO03659@denx.local.net> To: linuxppc-embedded Subject: MPC860-T / FEC transmits each packet 3 times? From: Wolfgang Denk Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Date: Wed, 22 Nov 2000 23:14:41 +0100 Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Hi, I'm struggeling with an Ethernet driver on the FEC of a MPC860-T. To the best of my knowledge, I'm doing everything strictly as documented, and as other drivers do it. However, even when I just want to send a single packet (no interrrupts, everything as simple as possible), the package is sent 3 times to the wire; sometimes even 4 times. I don't see any indication of this in the software, just 3 packets on the wire, usually 5...9 us apart (on a 100 Mbps net; the packets come after 300...320 us on a 10 Mbps net). Playing with half or full duplex mode didn't change anything. In case it matters: it's a LXT972LC PHY. Ummm.. and yes, I can be sure the hardware is working OK. It does so in another OS... Any ideas what I am missing? Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de Imagination is more important than knowledge. -- Albert Einstein ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/