Teledyne LeCroy QPHY-SATA - Manual (Page 25)

QPHY-SATA Software Option
915745 Rev G
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Save Waveforms
Used to select whether or not acquired waveforms should be saved as trace (*.trc) files. The path for storing the
waveforms is specified separately. The default value is Yes.
Stop On Test to review results
When set to Yes, the script will stop after each test to allow for result reviewing. The setup will be saved so that
oscilloscope settings can be modified by the user. On resume, the setup will be recalled.
Test Mode
Used to select whether to run the tests with newly acquired data or use previously saved data. If set to Acquire
New Data, QualiPHY will prompt the user to connect the product and produce the necessary test patterns. If set
to Use Saved Data, QualiPHY will load the waveforms specified in the Waveform Folder and Filenames
variables. The default value is Acquire New Data.
Waveform Folder
Used to specify the path on the oscilloscope to save/recall waveforms. All waveforms will be saved/recalled to a
subfolder in this folder based on the value entered for Device Under Test. When the Test Mode is set to Acquire
New Data and Save Waveforms is enabled, the waveforms will be saved in this folder on the oscilloscope. When
set to Use Saved Data, all the saved waveforms should be in this folder. The default value is
D:\Waveforms\SATA.
Gen1 PLL Natural Frequency
Gen2 PLL Natural Frequency
Gen3 PLL Natural Frequency
These variables control the natural frequency of the PLL used to recover the clock for jitter measurements at
Gen1, Gen2 and Gen3 data rates. Setting this value incorrectly results in a different PLL bandwidth and will affect
the jitter results. To tune the clock recovery to the precise response dictated by the Jitter Transfer Function in the
SATA specification, follow the calibration procedure for jitter measurement devices. The default value is 4.2e6 for
Gen1 and Gen2 and 7.6e6 for Gen3.
Filenames
This group contains variables that allow the user to specify trace (.trc) files to be used to run tests on previously
acquired data. If a parameter is left empty the tests requiring that pattern will be skipped. It is only necessary to
set these filenames when Test Mode is set to Use Saved Data. The specified files must be available in a
subfolder of the folder Waveform Folder; the subfolder name must match the Device Under Test name entered
at the start of the session
. The value does not include the “.trc” extension. When re-running a test using saved
waveforms it is best to use the waveforms that were saved by QualiPHY so that the acquisition settings will be as
expected.
PeRT3 Setup Variables
PeRT3 Hostname or IP Address
This variable allows the user to specify the host to which the PeRT 3 is connected via USB. By default the PeRT 3
should be connected to the oscilloscope, so the default value is localhost.
PeRT3 SSC Enabled
This variable allows the user to enable SSC on the PeRT 3 . The default value is No.