PowerPC architecture based multifunctional low-power-consumption bus communication module

Abstract

The invention belongs to the field of data communication, and particularly relates to a multifunctional data bus communication module in the condition of low power consumption. The module adopts a mode of combining a low-end CPU (central processing unit) of a PowerPC series with an FPGA (field programmable gate array) to integrate three kinds of data buses of MIL-STD-1553B, ARINC429 and RS422 into a card. A specific implementation method of the module mainly includes: (1) connecting all the three kinds of data buses into the FPGA and then combining the data buses with an MPC8315 minimum working system through a local bus so as to form an uniform data communication platform; (2) configuring a bottom layer BSP (board support package) of MPC8315 to enable the three kinds of data buses to be adopted with an uniform data transmission protocol and guarantee consistency with an upper hardware platform; and (3) designing an internal logical circuit of the FPGA and unifying read-write operation of the three kinds of data buses into one mode so as to achieve read-write operation among the MPC8315 and the data buses. The module has the advantages that by utilizing programmability of the FPGA, the three kinds of data buses of MIL-STD-1553B, ARINC429 and RS422 are unified into one mode and then combined with the low-power-consumption CPU of the PowerPC architecture, so that multiple data bus communication functions are achieved, and power consumption of the card and a system are lowered greatly.

Description

technical field [0001] The invention belongs to the field of data communication, and combines data communication buses such as MIL-STD-1553B, ARINC429 and RS422 with a low-power PowerPC architecture CPU to realize coordinated work among various data buses under low power consumption. Background technique [0002] The development of modern avionics integration technology has greatly improved the performance of aircraft. The key to avionics integration is the establishment of airborne communication network. The vast majority of military aircraft currently in service and under development are based on MIL-STD-1553B, ARINC429 and RS422 to establish multiplex transmission and bus distributed avionics communication systems. It is worth noting that special indicators such as high real-time performance, maneuverability and reliability of military aircraft have put forward higher requirements for avionics communication systems. [0003] Common bus communication solutions, one is to ...

AI Technical Summary

Problems solved by technology

The advantage of this solution is that the single board has a high degree of integration and the system integration is convenient. The disadvantage is that the power consumption is large, and the heat dissipation design requirements of the system are very high. At the same time, the high temperature environment has a great impact on the stability and reliability of the system.

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