From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from outbound7-dub-R.bigfish.com (outbound-dub.frontbridge.com [213.199.154.16]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.bigfish.com", Issuer "*.bigfish.com" (not verified)) by ozlabs.org (Postfix) with ESMTP id 00163DDDF3 for ; Thu, 7 Feb 2008 06:29:20 +1100 (EST) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: [Virtex 4 PPC] Which Linux? Date: Wed, 6 Feb 2008 11:29:11 -0800 In-Reply-To: <15268468.post@talk.nabble.com> References: <15268468.post@talk.nabble.com> From: "Stephen Neuendorffer" To: "IngoM" , Message-Id: <20080206192914.0A1DD1D0071@mail110-dub.bigfish.com> List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > -----Original Message----- > From: linuxppc-embedded-bounces+stephen=3Dneuendorffer.name@ozlabs.org [mailto:linuxppc-embedded- > bounces+stephen=3Dneuendorffer.name@ozlabs.org] On Behalf Of IngoM > Sent: Monday, February 04, 2008 5:55 AM > To: linuxppc-embedded@ozlabs.org > Subject: [Virtex 4 PPC] Which Linux? >=20 >=20 > Hello, >=20 > we develop a new laser-ranging-system and our hardware freaks have choosen > the Virtex 4 FX 12 on the "AVNET FX12 Mini-Module". The system had to > deliver the raw data via UDP (12 Mbyte/sec) and on TCP the processed data > (about 6 Mbyte/sec). When you get the processed data via TCP then no data > send by UDP. >=20 > I'm confused by the following: >=20 > 1) Hard-TEMAC vs. Soft-TEMAC. > Avnet provide a demo for the module which using Soft-TEMAC. If I get it > right this core has to be licenced. But when ther is a hard-TEMAC why pay > for it? Generally speaking, if you have the hard temac, you should use it. The new EDK cores do this transparently. (see http://www.xilinx.com/bvdocs/ipcenter/data_sheet/xps_ll_temac.pdf) Note that the emaclite license has recently been made free, although this core doesn't support gigabit rates, which it looks like youll need. Steve