A method for automatic positioning of processor signal faults

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.

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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Problems solved by technology

[0006] Purpose of the present invention: In order to solve the above problems, the present invention provides a method for automatic positioning of processor signal faults, which solves the problems that the existing troubleshooting methods cannot accurately locate the DSP fault point and requires a lot of labor, and can quickly and automatically locate the machine The fault point of the signal processing part of the on-board radar processor can greatly improve the efficiency of troubleshooting, greatly improve the accuracy of fault location, and save a lot of manpower and time costs

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