A vxi module tester based on fpga

Abstract

The invention relates to a VXI module tester based on an FPGA. According to the VXI module tester based on the FPGA, the FPGA meets the requirements of various modules of a VXI bus protocol. The VXI module tester comprises an FPGA core processing module, an analog signal providing module, an analog signal acquisition module, a digital signal acquisition module, a digital signal providing module, a test task setting module, a test process and result display module, a switch opto-isolator module and a linear opto-isolator module. The VXI module tester is an instrument special for testing the VXI modules, and a VXI system is widely used for the fields of aerospace, industrial production and the like. The problem of testing of all modules in the VXI system can be easily solved, faults and hidden dangers in the VXI system are effectively reduced, and the completion effect on large-scale application of the VXI system is achieved.

Description

technical field [0001] The invention relates to an FPGA-based VXI module tester for a field programmable gate array satisfying various modules of the VXI bus protocol. Background technique [0002] FPGA is the English abbreviation of Field Programmable Gate Array, which includes three parts: configurable logic module CLB (ConfigurableLogic Block), input and output module IOB (Input Output Block) and internal wiring (Interconnect). The logic blocks and connections of the FPGA can be changed according to the designer's needs, and the system designer can connect the logic blocks inside the FPGA through editable connections as needed, so the FPGA can realize a variety of different functions through programming. At the same time, using the hardware programming language can easily generate various required timings, which has great advantages in system testing. The VXI bus is an extension of the VME bus in the field of instruments, and it is a computer-operated modular automatic i...

AI Technical Summary

Problems solved by technology

At the present stage, the detection of VXI modules is still at the level of partial detection of some parts of the module with engineering experience and simple equipment such as multimeters. There is no formed and systematic testing means and instruments, and This method sometimes requires disassembly and assembly of VXI modules, and the disassembled modules can no longer be used in the working environment requiring reliability, not only the test results are not clear, but also the workability of the modules is reduced. Therefore, this test instrument The invention has an urgent market demand

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