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Interface board card of CPCI (Compact Peripheral Component Interconnect) framework based on MIL-STD-1553B

A technology of interface board and bus, applied in the field of interface board of CPCI architecture based on MIL-STD-1553B bus, can solve the problems of high price and unstable supply channels

Inactive Publication Date: 2013-09-18
北京中航赛维奥科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These chips all integrate the functions of BC, RT, and BM, but these chips are all produced by American companies, the price is very expensive, and the supply channel is unstable

Method used

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  • Interface board card of CPCI (Compact Peripheral Component Interconnect) framework based on MIL-STD-1553B
  • Interface board card of CPCI (Compact Peripheral Component Interconnect) framework based on MIL-STD-1553B
  • Interface board card of CPCI (Compact Peripheral Component Interconnect) framework based on MIL-STD-1553B

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Embodiment Construction

[0105] exist figure 1 Among them, the combination of performance indicators is to select the main components and build the overall architecture. The research and development of the whole system is based on the PCI / CPCI bus, and the module PCI bridge realizes the data interaction between the PC and the system; the FPGA is responsible for the realization of the 1553B bus protocol; the SDRAM module realizes the data storage; the transceiver is responsible for the matching conversion of the level and impedance.

[0106] exist figure 2 Among them, the 1553B bus interface is composed of level conversion circuit, Manchester code codec, command word / status word decoding logic, CPU and related circuits. Except that the codec can be realized by FPGA, the related circuits between it and CPU , Such as shared RAM, command word / status word decoding and memory management, processor and memory interface logic, etc. can also be realized by FPGA. Using FPGA technology to design the interface...

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Abstract

The invention relates to a computer board card of a CPCI (Compact Peripheral Component Interconnect) framework, in particular to a standard bus interface module based on a MIL-STD-1553B protocol, namely, a plane internal time-division system command / response multipath transmission data bus interface module, which is widely applied to plane comprehensive avionics systems and external store management and integration systems, and gradually expands to plane control systems and the like as well as the fields of tanks, ships, spaceflight and the like. The MIL-STD-1553B protocol is realized through an FPGA (Field Programmable Gata Array); coding and decoding of a Manchester code are realized by using a VHDL (Hardware Description Language); a reasonable small-sized bus driving circuit is designed according to the MIL-STD-1553B protocol; a DSP (Digital Signal Processor) program which can support the protocol is written, and an assembled interface assembly function is realized. Due to the adoption of the interface board card, the design requirement of small size is met, functional expansion can be performed easily as required, using flexibility is realized, and the development cost of a product is much lower than that of a foreign special interface chip.

Description

Technical field [0001] The invention relates to a computer board with a compact interface (CPCI) architecture, which is a standard bus interface module based on the MIL-STD-1553B protocol, that is, a time-division system command / response type multiplexed data bus interface module inside an aircraft, and is widely used. Focused on aircraft integrated avionics systems, external storage management and integration systems, and gradually expanded to flight control systems and tanks, ships, aerospace and other fields. Background technique [0002] The full name of the 1553B bus standard is MIL_STD_1553B (hereinafter referred to as 1553). It began in early 1968. On September 21, 1978, it was published as an official document of the United States after obtaining formal written approval. As one of the foundations for the integration and standardized management of U.S. Department of Defense weapon systems, this standard is widely used in aircraft integrated avionics systems, storage m...

Claims

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Application Information

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IPC IPC(8): G06F13/42
Inventor 陈伟
Owner 北京中航赛维奥科技有限公司
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