Direct interfacing method for ARINC429 bus and high-speed intelligent unified bus
A high-speed, intelligent technology, applied in the bus network, data exchange through path configuration, etc., can solve the problems that the ARINC429 bus cannot be directly connected to the high-speed intelligent unified bus, and achieve the effect of convenient interconnection, reduced power consumption, and reduced quantity
Inactive Publication Date: 2013-04-03
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
[0005] In order to overcome the problem that the existing ARINC429 bus cannot be directly connected to the high-speed intelligent unified bus, the present invention provides a direct interface method between the ARINC429 bus and the high-speed intelligent unified bus
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[0016] refer to Figure 1~3 , to describe the present invention in detail.
[0017] ARINC429 bus line driver of the present invention can adopt HI8588 as receiving line driver and H18585 as sending, ARINC429 bus controller is realized based on EP1C12 series FPGA; High-speed dual-port RAM adopts IDT70V3079; series FPGA; the high-speed monitoring unit is implemented with high-speed logic devices, such as Hittite’s high-speed logic devices; the high-speed serial-to-parallel conversion unit can use BCM8152 to achieve a data transmission and reception speed of 10Gbps. By writing ARINC429 controller configuration program and high-speed serial-to-parallel conversion unit configuration program, ARINC429 bus and high-speed serial-to-parallel conversion unit can work independently; by implementing clock switching unit and high-speed monitoring unit in high-speed logic devices, the clock of dual-port SRAM can be intelligent switch.
[0018] Implementation of the present invention needs...
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The invention discloses a direct interfacing method for an ARINC429 bus and a high-speed intelligent unified bus, which is used for solving the technical problem that the prior ARINC429 bus fails to be directly accessed into the high-speed intelligent unified bus. The technical scheme comprises the steps of adopting high-speed serial-parallel conversion to realize the high-speed serial-parallel conversion of data of the high-speed intelligent unified bus, adopting a low-speed logic device to configure a high-speed intelligent unified bus protocol, adopting a high-speed dual-port static randomaccess memory (SRAM) for data cache, adopting a high-speed monitoring unit for intelligent switching on a read / write clock of the high-speed dual-port SRAM, and adopting a method of direct interfacing of a data port of an ARINC429 controller and a data port of the high-speed intelligent unified bus to directly exchange data with the ARINC429 bus so as to realize the direct interfacing of the ARINC429 bus and the high-speed intelligent unified bus. At the same time, the method realizes the convenient and flexible interconnection between the ARINC429 bus and other buses, and reduces the quantity of bus media for system interconnection and system power consumption.
Description
technical field [0001] The invention relates to a bus interface method, in particular to a direct interface method between an ARINC429 bus and a high-speed intelligent unified bus. Background technique [0002] The ARINC429 bus is the most widely used bus in the field of civil aviation. Boeing 727 to 767 and my country's ARJ regional aircraft are all designed using the ARINC429 bus standard. Airborne electronic systems such as GPS, INS, TCAS, etc. use the ARINC429 bus standard to transmit data. With the development of avionics systems, the integration scale of the system is getting larger and larger, and the division of labor and cooperation of each subsystem is mainly reflected in the bus interface communication and functional calculation, thus requiring massive sensor information and image information to be realized through the high-speed intelligent unified bus. It is urgently required that the ARINC429 bus with a transmission speed of up to 100kbps and the high-speed in...
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IPC IPC(8): H04L12/40
Inventor 史忠科辛琪贺莹
Owner NORTHWESTERN POLYTECHNICAL UNIV