From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from segw2.mpa.lan (segw2.microprecisionautomation.com [69.17.55.102]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 7E17EDDDFF for ; Tue, 20 Nov 2007 11:40:16 +1100 (EST) Received: from home.sewingwitch.com (c-69-181-148-112.hsd1.ca.comcast.net [69.181.148.112]) (authenticated bits=0) by segw2.mpa.lan (8.13.8/8.13.8) with ESMTP id lAK0KOEm009799 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL) for ; Mon, 19 Nov 2007 16:20:30 -0800 Received: from [10.0.0.14] ([10.0.0.14]) (authenticated bits=0) by home.sewingwitch.com (8.13.1/8.13.1) with ESMTP id lAK0KLGj017201 for ; Mon, 19 Nov 2007 16:20:31 -0800 Date: Mon, 19 Nov 2007 16:20:21 -0800 From: Kenneth Porter To: linuxppc-embedded@ozlabs.org Subject: Looking for small form factor with HDLC Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I'm attempting to create a middleware system that talks to one of my vendor's motion control products. My vendor has an FPGA capable of perhaps 10 megabit performance, and RS485 full-duplex tranceivers. I want to be able to send commands and receive events and bulk data efficiently. I'll also add electrical isolation, possibly with suitable 485 transceivers. I'm thinking that HDLC is a natural fit for the bit-level protocol, so I'm looking for an SBC and Linux OS with natural HDLC support. Ideally the SBC would fit in a 3"x3"x1" volume, and include Ethernet. It will go on a backplane along with the motion control box. The Freescale chips look like many have the hardware to do HDLC, so I'm wondering what's available for boards and drivers.