基于VPX标准的双路“龙芯”3A计算机模块设计

VPX是一种开放的总线形式,与国产化CPU（中央处理器）结合实现VPX计算机模块是一种新的应用需求.针对这种需求对VPX总线标准及国产的“龙芯”3A芯片进行研究,从原理上结合二者特点,再利用高速高密度布线方式,以欧卡6U的标准设计完成了基于VPX的国产化计算机模块.对模块的功能和性能分别进行测试,分析可得,模块化方式的计算机和普通计算机在主板的性能和功能上表现一致,而且可直接用于具有抗震加固特性的机箱,更适用于未来的军事应用.

Design of a Computer Module with Loongson 3A Double Processors Based on VPX

Development of VPX computer modules in combination with homegrown CPU （Central Processing Unit）is urgent to meet new application requirements.To meet the requirements,research is done on the standards of VPX bus and Loongson 3A CPU.Integrating the characteristics of the two parts,a computer module is constructed with high speed and high density layout design on just 6U area.Functional and performance tests of the module show that the computer module is consistent with a normal computer in function and performance.As the computer module can be used directly in a ruggedized chassis,it fits well into military applications.