Wireless link-based distributed boundary scan test system
A boundary scan test and wireless link technology, applied in the field of boundary scan test systems
Inactive Publication Date: 2011-01-05
黄建军
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Problems solved by technology
[0003] In order to overcome the limitations of the existing boundary scan test system, the present invention provides a distributed boundary scan test system using wireless links
Method used
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[0009] exist figure 1 wherein, the main control computer sends input test vectors and test commands to the circuit under test through a wireless link; the circuit under test transmits test vectors back to the main control computer through a wireless link.
[0010] exist figure 2 Among them, the adapter converts the input test vector and test command sent by the main control computer into a boundary scan test interface signal (TAP interface signal); and then outputs it to the circuit board under test through the TAP cable to control the action of the circuit board under test, So as to achieve the purpose of testing.
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The invention discloses a wireless link-based distributed boundary scan test system, which is a boundary scan test system with a wireless link. The system realizes the extension of a boundary scan test link, overcomes the limitation to the conventional boundary scan test system, and can test a distributed circuit system and circuit systems in toxic, harmful and radiation environments.
Description
Technical field [0001] The invention relates to a boundary scanning test system, the test link of which uses a wireless link, and is especially suitable for testing or loading software for a circuit board under test that cannot be touched or a circuit board under test that is far away. Background technique [0002] At present, the boundary scan test system adopts the wired link, which is suitable for testing or loading software to the circuit board under test which is accessible or in the same rack. The user needs to insert the test cable into the TAP interface of the circuit board under test through the manual jumper to perform the boundary scan test. However, artificial jumpers cannot be used for testing circuit boards in toxic, harmful, and radiative environments, nor can they be used for testing or status monitoring of distributed electronic systems with long spatial distribution distances. The use environment has certain limitations. Contents of the invention [0003...
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Login to View More IPC IPC(8): G01R31/28G08C17/00
Inventor 黄建军
Owner 黄建军