Teledyne LeCroy QPHY-SAS3 - Manual (Page 43)

QPHY-SAS3 Software Option
HOW TO RUN THE SAS3_EYEOPENING SCRIPT
The SAS3_EYEOPENING script is required to process the results for the Group 4 Tx Emphasis tests.
This script is included with the QPHY-SAS3 software but can also be obtained from the T10 organization
website.
The SAS3_EYEOPENING script requires a registered version of Matlab. A Matlab license can either be
installed on the oscilloscope or can be run from a separate PC. If Matlab will be run from a separate PC a
shared drive must be configured so that Matlab can see the waveform data from the oscilloscope.
QPHY-SAS3 will automatically save the waveform, pass the waveforms to Matlab for execution, and
return the results back to the oscilloscope. Below are some tips on how to set the appropriate variables in
order to successfully run the SAS3_EYEOPENING script.
Running the SAS3_EYEOPENING script on the oscilloscope
This will require a Matlab license to be installed on the oscilloscope. Before running QPHY-SAS3 the
following variable should be configured:
• Drive Letter for Matlab – This variable is used to tell the Matlab script where it should check on the
oscilloscope to find the waveforms to feed into the SAS3_EYEOPENING script. When running on
the oscilloscope this drive letter will match the Path to Saved Waveforms for offline test. There is
no need to modify the default value.
• Path to Saved Waveforms for offline test – This variable sets the path to where QualiPHY will save
the waveforms on the oscilloscope to be used in the SAS3_EYEOPENING script. There is no
need to modify the default value
• Matlab Startup Path – This path will need to be altered depending upon the version of Matlab being
used. The user should also verify that this path is capable of being written to.
Running the SAS3_EYEOPENING script using an Separate PC
If the user is using a separate PC with a Matlab license to run the SAS3_EYEOPENING script first a
shared drive will need to be setup so that Matlab can see the waveforms which the scope acquires during
the QualiPHY run. Before running QPHY-SAS3 the following variable should be configured:
• Drive Letter for Matlab –This variable is used to tell the Matlab script where it should check on the
PC to find the waveforms to feed into the SAS3_EYEOPENING script. This will be the location of
the shared drive.
• Path to Saved Waveforms for offline test – This variable sets the path to where QualiPHY will save
the waveforms on the oscilloscope to be used in the SAS3_EYEOPENING script. This path
should be defined so that it points to the drive which is being shared from the oscilloscope to the
separate PC.
• Matlab Startup Path – This path will need to be altered depending upon the version of Matlab being
used. The user should also verify that this path is capable of being written to.
922545 Rev A 43