Test method for automatically generated vectors of digital circuit board

Abstract

The invention provides a test method for automatically generated vectors of a digital circuit board, aiming at solving the technical problem of testing arbitrary digital circuit boards and improving test reliability and efficiency; the adopted technical proposal is as follows: the method in the invention is realized by the coordination of an upper computer which is installed with mating test programs and an automatic test generation system and a lower computer which implements the test programs. The test method comprises the following steps: firstly, automatically testing the circuit under test, generating and obtaining corresponding test vector table; secondly, writing test programmes according to the generated vector table, and implementing the test process according to timing sequence of programmes; and finally, reading the response information of the circuit under test, comparing with standard vector information, and judging the fault of the circuit under test. The invention has the advantages that the test capability is strong, and the test vector obtained from the test generation system can be automatically converted into the test programmes of the circuit under test, thus improving system execution efficiency, and ensuring that the system can be conveniently applied to experimental test of novel circuit board.

Description

technical field [0001] The invention relates to the field of electronic testing systems, and is mainly used for testing and fault diagnosis of digital circuit boards, and in particular to a testing method for automatically generating vectors for digital circuit boards. Background technique [0002] With the continuous strengthening of equipment informatization, digital circuits have become an important part of electronic equipment. Its quality directly affects the quality of the complete equipment, and its production, maintenance and inspection cycle directly affects the development speed and comprehensive indicators of the complete machine. Therefore, research on digital circuit testing and fault diagnosis technology has become an important field of modern testing technology research. However, most of the test systems are designed for the entire device or system, and the automatic test method for testing the circuit board is still rare. [0003] The generation of test vec...

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Problems solved by technology

However, these algorithms are difficult to implement, and many of them remain at the level of theoretical research, and the actual system has not been applied.

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