Method and system for detecting single-plate on position

A detection method and single-board technology, which is applied to the detection of faulty computer hardware, measuring electronics, measuring devices, etc., can solve the problems of inability to use single-board on-site detection, large number of backplane buses, etc., and achieve reliable on-site detection , the effect of reducing the number

Active Publication Date: 2007-02-14
HUAWEI TECH CO LTD
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Problems solved by technology

[0004] 1. As many service boards as there are in the system need to design as many in-position detection signal lines. The presence detection signal lines are connected to the main control board and the backplane slots of each service board through the backplane. If there are many

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  • Method and system for detecting single-plate on position
  • Method and system for detecting single-plate on position
  • Method and system for detecting single-plate on position

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[0046] JTAG (Joint Test Action Group, Joint Test Action Group) formulated the boundary scan test specification, and became the IEEE standard IEEE1149.1-90 in 1990, referred to as the JTAG standard. The JTAG standard has greatly promoted the development and wide application of boundary scan technology. . Now the application of boundary scan technology is becoming more and more common, the main applications are board interconnection test, FLASH loading, logic programming and so on. The application level also develops from the chip level to the circuit board level and then to the system level, and various application characteristics are continuously excavated. The following board presence detection method of the present invention uses the boundary scan technology to realize the board presence detection.

[0047] Such as figure 2 As shown, the veneer presence detection method of the present invention comprises steps:

[0048] Step 201, the network management or the test terminal

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Abstract

An on-position detecting method of single board includes sending command to test bus controller TBC by network management for driving said controller TBC to detect whether single board in system is on position or not, sending broadcast message by said TBC controller through bus of back board boundary scan test system, receiving said broadcast message by addressable scan port ASP then returning back response message and judging whether single board is on position or not by said scan port ASP according to content of said response message. The system for realizing said method is also disclosed.

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Application Information

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Owner HUAWEI TECH CO LTD
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