分区操作系统下的BIT软件的设计

摘要

In order to solve the problem of BIT software can not be used directly by applications in partition under partition operating system,this paper presents a hierarchical BIT software implementation.Partition operating system is basis of a new generation of integrated avionics system.It supports time partitioning and space partitioning mechanisms to ensure integrated applications not affect each other.Partition operating system has brought changes in the structure of the software,and application software running in user mode,while the BIT software is usually due to the need to operate the hardware running in supervisor mode.It can not be be used directly by application,so the BIT software has been unable to meet the requirements.%针对原有的自测试软件在分区操作系统下不能被分区内应直接使用的问题,本文提出了一种分层的BIT软件的实现方法解决该问题.分区操作系统是新一代综合化航电系统的基础,提供时间分区和空间分区机制,保证综合后的应用不会相互影响.分区操作系统带来了软件结构的变化,应用软件运行在用户态,而自测试软件通常由于需要操作硬件运行在系统态,原有的自测试软件不能满足要求.