QPHY-MOST50e MOST50 ePHY Serial Data Operator’s Manual Revision B – March, 2012 Relating to the Following Release Versions: • Software Version Rev. 6.8 • MOST50e Script Rev. 1.1 • Style Sheet Rev. 1.
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QPHY-MOST50e Software Option TABLE OF CONTENTS INTRODUCTION TO QUALIPHY MOST50 EPHY .................................................................... 5 Required Equipment .................................................................................................................................................. 5 USING QUALIPHY MOST50 EPHY .......................................................................................... 6 QUALIPHY COMPLIANCE TEST PLATFORM ................................
TABLE OF FIGURES Figure 1 - Report menu in QualiPHY General Setup................................................................................ 7 Figure 2 - The Test Report includes a summary table with links to the detailed test results ............. 8 Figure 3 - QualiPHY main menu and compliance test Standard selection menu ............................... 10 Figure 4 - QualiPHY configuration selection menu. ..............................................................................
QPHY-MOST50e Software Option INTRODUCTION TO QUALIPHY MOST50 EPHY QPHY-MOST50e is an automated test package performing all of the normative real time oscilloscope tests for sources in accordance with the MOST Electrical Physical Layer Specification Rev. 1.1, 06/2006, Version 1.1-00. The software can be run on any LeCroy Zi and Xi Series oscilloscope with at least 500 MHz bandwidth, a sample rate of at least 5GSa/s, and 10Mpt of memory.
USING QUALIPHY MOST50 EPHY QualiPHY MOST50 ePHY guides the user, step-by-step, through each of the tests described in the specification: MOST Electrical Physical Layer Specification Rev. 1.1, 06/2006, Version 1.1-00. To do this, the user must set up a test session. Users choose the test configuration they wish to run. There are six pre-loaded test configurations.
QPHY-MOST50e Software Option QUALIPHY COMPLIANCE TEST PLATFORM QualiPHY is LeCroy’s compliance test framework which leads the user through the compliance tests. QualiPHY displays connection diagrams to ensure tests run properly, automates the oscilloscope setup, and generates complete, detailed reports. The QualiPHY software application automates the test and report generation.
See the QualiPHY Operator’s Manual for more information on how to use the QualiPHY framework.
QPHY-MOST50e Software Option Oscilloscope Option Key Installation The required option keys must be purchased to enable the QPHY-MOST50e compliance tests. Call LeCroy Customer Support to place an order and receive the codes. Enter the key and enable the purchased option as follows: 1. From the oscilloscope menu select Utilities Utilities Setup... 2. Select the Options tab and click the Add Key button. 3. Enter the Key Code(s) using the on-screen keyboard. 4.
Accessing the QPHY-MOST50e Software using QualiPHY This topic provides a basic overview of QualiPHY’s capabilities. Please refer to the QualiPHY Operator’s Manual for detailed information. Access the QPHY-MOST50e software using the following steps: 1. Wait for the oscilloscope to start and have its main application running. 2. Launch QualiPHY from the Analysis menu if installed on the oscilloscope or from the desktop icon if installed on a host computer. 3.
QPHY-MOST50e Software Option 4. Click the Configuration button in the QualiPHY main menu: 5. Select a configuration from the pop-up menu: Figure 4 - QualiPHY configuration selection menu. 6. Click Start. 7. Follow the pop-up window prompts.
Customizing QualiPHY The predefined configurations in the Configuration screen cannot be modified. However, you can create your own test configurations by copying one of the standard test configurations and making modifications. A description of the test is also shown in the description field when selected.
QPHY-MOST50e Software Option Creating Custom Configurations Beginning with any of the pre-loaded configurations, 1. Click on the Test Selector tab to change what tests you would like to be included in your new configuration. 2. Click on the Variable Setup tab to change the variables for your new configuration. 3. Click on the Limits tab to change which limit set should be used for your new configuration •See QualiPHY Manual for more information 4.
Figure 6 - Variable Setup and Limits Manager windows 14 920457 Rev B
QPHY-MOST50e Software Option QPHY-MOST50e Operation After pressing Start in the QualiPHY menu, the software instructs how to set up the test using pop-up connection diagrams and dialogue boxes.
MOST50 EPHY MEASUREMENT PREPARATION Before beginning any test or data acquisition, the oscilloscope must be warmed for at least 20 minutes. Calibration is automatic under software control and no manual calibration is required. This procedure will be run again if the temperature of the oscilloscope changes by more than a few degrees. QPHY-MOST50E TEST CONFIGURATIONS Configurations also include variable settings and limit sets, not just test selections.
QPHY-MOST50e Software Option QPHY-MOST50E VARIABLES Default Bitrate Specifies whether the bitrate is based on 48 kHz or 44.1 kHz frames. Fixed Bitrate Mode Specifies whether the fixed bitrate defined above is used instead of the measured value. Debug Mode When active, the test will pause after each test for debugging purposes and displays the parameter values. Demo Mode Specifies whether to use saved waveform data for testing or captured live signals.
Path to Demo waveforms Specifies the location of the stored waveforms for Demo Mode. QPHY-MOST50E LIMIT SETS The limits in use by QPHY-MOST50e are the ones specified in the MOST Electrical Physical Layer Specification Rev. 1.1, 06/2006, Version 1.1-00. QPHY-MOST50E TEST DESCRIPTIONS For additional information about the tests supported by QPHY-MOST50e please refer to the MOST Electrical Physical Layer Specification Rev. 1.1, 06/2006, Version 1.1-00.
QPHY-MOST50e Software Option Eye Diagram Testing 1.1, 2.1, 3.1, 4.1 This test is performed at all test points and creates an eye diagram from the input signal and tests it against the appropriate mask using the specified clock edge. The result reported is the number of mask hits. Note: In cases where a large number of mask hits are detected the number of UI displayed will be reduced to keep the processing time manageable.
Transfer Jitter Testing 1.2, 2.2 This test is performed at points SP1E and SP2E. The oscilloscope captures a long signal record which is used to generate a TIE-track where the PLL from the clock recovery is set to a very low frequency. This TIE-track is then filtered by the specified filter. The filter is implemented as an IIR Butterworth filter for best conformance to the standard. The transfer jitter value is the RMS (sdev) of this filtered TIE-track.
QPHY-MOST50e Software Option Master, Slave Mode Device Testing Timing Master Device A Timing Master device is responsible for supplying a MOST network with MOST frames and therefore can be operated without the use of any external generator. It is capable of generating the signals required for compliance testing. Timing Slave Device In a MOST network a Timing Slave device synchronizes itself to MOST frames generated by the Timing Master device and regenerates the frames at the same network rate.