A method for automatic positioning of processor signal faults

A signal fault and automatic positioning technology, applied in the field of signal processing, can solve problems such as labor-intensive and inability to accurately locate DSP fault points, and achieve the effects of improving troubleshooting efficiency, saving manpower and time costs, and improving fault location accuracy

CN107329864BActive Publication Date: 2020-09-11LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-09-11

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Abstract

The invention discloses an automatic positioning method for processor signal faults, and belongs to the technical field of signal processing. The method comprises the following steps that 1, original data is converted and imported, a detection result of an APEX DOS window is stored into a txt format as an original data source, and a VBA writing program is used for splitting and arranging the integer part and the decimal part of the original detection data to be imported into a data importing region in a 64-row 12-column array mode; 2, a correct data region is used, automatic data comparison operation is performed in the data importing region and a data comparison region, and a comparison result is stored; 3, a format nested four-layer IF function is used for fault analysis judgment, and the deficiency SHARC quantity is obtained; 4, a judgment value is obtained; 5, a fault SHARC number is calculated. Fault points of a signal processing portion of an airborne radar processor can be rapidly and automatically positioned, the fault obviation efficiency can be greatly improved, the fault positioning accuracy is greatly improved, and a large amount of labor force and time cost are decreased.
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Description

technical field

[0001] The invention belongs to the technical field of signal processing, and in particular relates to a method for automatically locating signal faults of a processor. Background technique

[0002] The signal processing part of a processor is a DSP array composed of 63 ADSP21060CZ-160 SHARC chips. Due to the large number of DSP chips used in the processor, the pins are thin and dense, and short circuits and solder joints are prone to occur. Among the various faults of the processor, communication failures between DSPs account for about 70%. Facing such a high failure rate, debugging and troubleshooting personnel lack efficient and fast analysis tools and methods for troubleshooting and locating.

[0003] The existing positioning method is to run APEX software combined with manual analysis and positioning, but APEX software often cannot accurately report the fault point, and often requires a lot of manual analysis of specific faults.

[0004] 1) The process...

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Embodiment Construction

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...