Subversion Repositories w11

# $Id: INSTALL_urjtag.txt 467 2013-01-02 19:49:05Z mueller $

The w11 project uses the open source JTAG Access software from the

SourceForge project

  urjtag

for configuring FPGA over the Cypress FX2 USB Interface available on Digilent

Nexys2, Nexys3 and Atlys boards.

The most recent version works fine. This version is delivered with

Ubuntu 12.04 LTS and later Ubuntu versions. In this case simply install the

package 'urjtag'. Try the command

  jtag

it should print

  UrJTAG 0.10 #2007

and show a version number of '#2007' or higher.

Old versions unfortunately have a string size limitation problem with can

lead to problems when used with Digilent S3BOARDS (or other cases with

multiple devices in the jtag chain). Therefore for

  Debian Squeeze and older

  Ubuntu 11.10 (oneiric) and older

or if the 'jtag' command prints something like

  UrJTAG 0.10 #1502

  UrJTAG 0.9 #1476

it is advisible to install the urjtag software from sources.

Simlest is to install an up-to-date version directly from the SourceForge

svn repository, start at

  http://sourceforge.net/scm/?type=svn&group_id=193266&source=navbar

do a 'svn co' for revision 2007 or later, build and install.

Alternatively start with the V0.10 (rev #1502) tarball available from

  http://sourceforge.net/projects/urjtag/files/?source=navbar

and download

  urjtag-0.10.tar.gz            (dated 2009-04-17)

Change in file src/cmd/parse.c the line

  #define MAXINPUTLINE 100    /* Maximum input line length */

and replace '100' with '512', build and install.