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Method and device for measuring pin signals of PCB (Printed Circuit Board)

A technology of PCB board and measurement method, applied in the field of signal measurement, can solve problems such as oscilloscope measurement signal

Inactive Publication Date: 2018-08-21
北京君正集成电路股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, for those pins that do not have reserved test contacts in the PCB development board, we cannot use an oscilloscope to directly measure the signals of the corresponding pins

Method used

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  • Method and device for measuring pin signals of PCB (Printed Circuit Board)
  • Method and device for measuring pin signals of PCB (Printed Circuit Board)
  • Method and device for measuring pin signals of PCB (Printed Circuit Board)

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] The invention provides a method for measuring the pin signal of a PCB board, such as figure 1 As shown, the method includes:

[0033] S11. Read the signal waveform of at least one first pin on the PCB.

[0034] S12. Write the signal of the at least one first pin to the respective corresponding second pins, so as to display the signal...

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Abstract

The invention provides a method and device for measuring pin signals of a PCB (Printed Circuit Board). The method comprises the steps of reading the signal waveform of at least one first pin on the PCB; writing a signal of the at least one first pin to respective corresponding second pins so as to display the signal waveform of the first pin through an oscilloscope connected to the corresponding second pin, wherein the first pin is a pin without a reserved test contact on the PCB, and the second pin is a pin which is reserved with a test contact and is not currently used on the PCB. Accordingto the invention, the signal waveform of the pin without the reserved test contact can be captured by using the oscilloscope.

Description

technical field [0001] The invention relates to the technical field of signal measurement, in particular to a method and device for measuring PCB pin signals. Background technique [0002] In the development and debugging of embedded devices, it is often necessary to use an instrument for measuring digital signals, for example, an oscilloscope to measure the signal of the clock / signal line on the PCB development board, that is, to capture the signal waveform on the pin, specifically, We can usually directly point the probe of the oscilloscope on all the measured pins to capture the waveform. [0003] In the process of realizing the present invention, the inventor found that there are at least the following technical problems in the prior art: [0004] In some PCB development boards, it is often not possible to expose all the pins or leave special test contacts. In this case, for those pins that do not have reserved test contacts in the PCB development board, we cannot use ...

Claims

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Application Information

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IPC IPC(8): G01R13/00G01R31/28
CPCG01R13/00G01R31/2806
Inventor 赵佳康
Owner 北京君正集成电路股份有限公司