Analysis of the \"read\" and \"write\" eye diagrams of DDR 1&2&3: Now, engineers who design or test motherboards, or engineers who design or test memory or DDR chips will face such a problem: How to separate the \"read\" and \"write\" eye diagrams to find out whether there are any signal quality problems? Because it is difficult to determine whether your design or product meets the specification requirements by simply testing a waveform. And because the data bus signal of DDR has three states, and the \"read\" timing and \"write\" timing are different, it is difficult for us to directly use an oscilloscope to separate the \"read\" eye diagram and the \"write\" eye diagram. This article introduces a method to separate the \"read\" eye diagram and the \"write\" eye diagram based on the DDR \"read\" and \"write\" separation software designed by myself, and innovatively introduces the template test method. [Keywords] DDR, read eye diagram, write eye diagram, template, oscilloscope
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