DDR2一致性测试软件手顺.docx

ProjectMakerCheckApprovalDDR2 Compliance test method1. PurposeTo describe DDR2 Compliance test method2. Test Apparatus Tektronix Company methodTest ApparatusTypeRemarkOscilloscopeMSO73304DX (Tektronix)Differential probeP7500 SeriesTipsMicro-coax TipIts used to filter waveformTest softwareDDRA Agilent Company methodTest ApparatusTypeRemarkOscilloscopeDSOS404A (Agilent)Differential probe1132ATipsE2677AIts used to filter waveformTest softwareN5413B3. Test Method Tektronix Company method1) Power on Oscilloscope2) Solder the tips on the test points and connect the tips into probes3) Open the DDRA software4) Select the DDR generation, data rate and the voltage levels (if required). There are different speed bins for each standard data rate for specific DDR generations. 5) Select the test items(Read/Write/Clock/Address) 6) Select channels for the test points(e.g. DQS for Channel 1 and DQ for Channel 2) 7) Setup Burst Detection Levels.If your DDR2 design conforms to the design standard, default setup is enough.8) Setup Thresholds and Scaling9) If you have finished the above setup, Run the DDR2 Compliance test.The true Eye pattern is shown as follows Agilent Company method1) Power on Oscilloscope2) Solder the tips on the test points and connect the tips into probes3) To start the DDR2(+LP) Compliance Test Application: From the Infiniium oscilloscopes main menu, choose AnalyzeAutomated Test AppsDDR2(+LP) Test. 4) Create a new test projectChoose FileNew Project. from the menu.5) Set Up the Test EnvironmentSelect the Test Mode and Data rate6) Select the test you want to runIf tests have already been run, you will see their status in the Select Tests tab.The marks have the following meanings:7) Select either Compliance Mode or Debug Mode.l Compliance Mode lets you choose the configuration options necessary to meet the compliance standard tests.l Debug Mode lets you modify the configuration options. This can be useful, for example, when investigating a test failure.8) Connecting the Oscilloscope to the DUTFollow the displayed instructions for connecting the oscilloscope to the device under test.It will show you we need connect which test pointsWhen connections to the device under test have been made, check the I have completed these instructions box.9) Start the test run.Above the Tab, you can see 5 additional run options.a) Store mode: you can select 4 typesl Best stores the results of the best N trials.l Event stores the results of N trials in which the event is detected. The event is determined in the Event area. See Specify the event.l Last stores the results of the last N trials.l Worst stores the results of the worst N trials.b) Run times: you can select 2 typesl 1 timel N times(264)c) To send email on pauses or stopsYou can configure the test application to send email whenever a run pauses or ends.d) To pause or stop on eventsYou can set up test runs to pause or stop on events which are checked at the end of each test. l Pause causes the run to pause when the event is detected.l Stop causes the run to stop when the event is detected.e) Specify the eventl Fail causes the event to fire when a prerequisite test or selected test fails.l Margin N causes the event to fire when a test generates a margin specified. When this option is selected, enter the minimum required margin percentage.l Pass causes the event to fire when a test passes (excluding prerequisite tests).4. Attention1) How to recognize read or write?Read is edge aligned and write is cent