Endace Measurement Systems Limited
http://www.endace.com
EDM01.05-12r1 DAG 3.7T Card User Manual
Copyright, all rights reserved.
26
Version 6. 22 September 2005.
4.0 RUNNING DATA CAPTURE SOFTWARE
Introduction
For a typical measurement session, the
scripts/dag37tstart
script is
edited and used to operate the cards directly.
In this chapter
This chapter covers the following sections of information.
•
Set Capture Session
•
High Load Performance
4.1 Set Capture Session
Description
The various tools used for data capture are in the
tools
sub-directory. For
a typical measurement session, first move to the
dag
directory, load the
driver, then load the appropriate FPGA image to each DAG card. For
example, for HDLC capture with one DAG 3.7T card installed:
drv/dagload
tools/dagrom -rvp –d dag0 -f xilinx/dag37tpci-hdlc-
erf.bit
The integrity of the card’s physical layer is then set and checked.
Process
Follow this process to set a data capture session.
Process Description
Set and check integrity
of card physical layer.
For example:
dagthree –d dag0 default E1 mode=29
term120
Configure channels.
Configure the DAG 3.7T channels using
dagchan:
dagchan –c chan.cfg
Start capture session.
Start a capture session as follows:
tools/dagsnap –v –o tracefile
The option -v is used to provide user
information during capture; you may want to
omit it for automated trace runs. If the –o
tracefile parameter is not specified the tool will
write to stdout, which can be used to pipeline
dagsnap with other tools from the dagtools
package.
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