From owner-freebsd-embedded@FreeBSD.ORG Mon Oct 6 17:21:49 2008 Return-Path: Delivered-To: freebsd-embedded@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A10571065686 for ; Mon, 6 Oct 2008 17:21:49 +0000 (UTC) (envelope-from bms@incunabulum.net) Received: from out4.smtp.messagingengine.com (out4.smtp.messagingengine.com [66.111.4.28]) by mx1.freebsd.org (Postfix) with ESMTP id 7904B8FC12 for ; Mon, 6 Oct 2008 17:21:49 +0000 (UTC) (envelope-from bms@incunabulum.net) Received: from compute1.internal (compute1.internal [10.202.2.41]) by out1.messagingengine.com (Postfix) with ESMTP id F22E6175F50 for ; Mon, 6 Oct 2008 13:21:48 -0400 (EDT) Received: from heartbeat2.messagingengine.com ([10.202.2.161]) by compute1.internal (MEProxy); Mon, 06 Oct 2008 13:21:48 -0400 X-Sasl-enc: NCjt3y3PQROgtbJ9xgIVVkhw/DKW5Pg8rVVoN2+KZSL2 1223313708 Received: from empiric.lon.incunabulum.net (82-35-112-254.cable.ubr07.dals.blueyonder.co.uk [82.35.112.254]) by mail.messagingengine.com (Postfix) with ESMTPSA id 9BC44290F9 for ; Mon, 6 Oct 2008 13:21:48 -0400 (EDT) Message-ID: <48EA492B.6040804@incunabulum.net> Date: Mon, 06 Oct 2008 18:21:47 +0100 From: Bruce M Simpson User-Agent: Thunderbird 2.0.0.14 (X11/20080514) MIME-Version: 1.0 To: freebsd-embedded@freebsd.org X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Most useful JTAG page ever. X-BeenThere: freebsd-embedded@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Dedicated and Embedded Systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Oct 2008 17:21:49 -0000 At least two folk have asked me for this link: http://www.freelabs.com/~whitis/electronics/jtag/ He hits the nail on the head, explains clearly the political and economic problems JTAG has faced, and explains graphically how it fits together with clear schematic diagrams. cheers BMS