Method and device for generating LVDS signal eyespattern

Abstract

The invention discloses a method and a device for generating an LVDS signal eyespattern. The method comprises the following steps: 1, acquiring a clock period of an LVDS signal; 2, according to the clock period of the LVDS signal, calculating variable for generating the eyespattern; 3, generating an .msk file according to the variable; 4, generating the LVDS signal eyespattern according to the .msk file. The device for generating the LVDS signal eyespattern adopts a Windows XP operation system, a .Net Framework development platform is used, all operation can be completed on an oscilloscope, a requested .msk file can be automatically generated by inputting the clock period, and abnormal operation of users can be specifically prompted. .msk files can be rapidly and accurately generated for LVDS testing departments, the labor and the materials can be saved, the working efficiency can be greatly improved, and only 10 seconds are taken when one .msk file is generated each time.

Description

technical field [0001] The invention relates to a method for generating an .msk file. In particular, it relates to a method and device for generating an LVDS signal eye diagram. Background technique [0002] For a long time, the LVDS (low voltage differential signal) transmission test department always needs to manually create .msk files when testing LVDS eye diagrams. The eye diagram is to judge the quality of the output signal through the upper and lower limits of the high level, the upper and lower limits of the low level and the phase difference of the eye diagram displayed by the oscilloscope. The .msk file is the standard for oscilloscopes to generate eye diagrams, which is very important. The .msk template is the manual given by the oscilloscope manufacturer. The user should generate the .msk file corresponding to the LVDS eye diagram to be tested according to the .msk template. The process of making the .msk file is as follows: [0003] 1. Measure and record the c...

AI Technical Summary

Problems solved by technology

[0007] 1. An additional computer is required to install excel, and there must also be such an excel template

[0008] 2. It is easy to make mistakes when filling in the 14 data on the oscilloscope according to the regulations

First of all, because of the large amount of data, it is easy to misremember the number of digits; secondly, the data that needs to be changed is connected with the data that does not need to be changed, so it is difficult to find the right position

[0009] 3. The overall operation is very time-consuming. If you need to test multiple times, more time will be wasted

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