基于PowerPC处理器的机载多总线单板计算机设计

为满足面向综合化飞行器管理平台的分布式控制需求,设计一种基于PowerPC处理器的机载多总线单板计算机，其以PowerPC8245处理器为核心，外部总线接口包括ARINC659总线、HB6096总线、GJB289A总线等多种机载总线接口。各总线接口依据其带宽、完整性要求、协议复杂程度等来采用不同的智能化处理方法，实现了外部总线接口的自主处理，避免了慢速的外设占用处理器资源，既完成了接口数据处理，又释放了处理器的处理能力。计算和接口的解耦使得PowerPC8245处理器可以作为计算机系统的主处理器使用，经过使用验证，可满足要求。该单板计算机也适用于综合化飞行控制的分布式控制系统。

Design of Airborne Multi-Bus Single Board Computer Based on PowerPC Processor

In order to meet the distributed control needs for the integrated vehicle management system(IVMS),an airborne multi-bus single board computer design based on the PowerPC processor is designed,which uses the PowerPC8245 as the core,and the external bus interfaces include ARINC659,HB6096,GJB289A and other airborn bus interfaces.Each bus interface adopts different intelligent processing methods according to its bandwidth,integrity requirements,protocol complexity,etc.,which realizes the autonomous processing of the external bus interfaces and avoids slow peripheral occupying processor resources.It not only completes the interface data processing,but also releases the processing power of the processor.The decoupling of calculation and interface allows the PowerPC8245 processor to be used as the main processor of the computer system.The single board computer has been validated to meet the requirements,and is also suitable for distributed control systems of integrated flight control.