嵌入式操作系统PPSM在卫星定位系统终端机中的应用

The Implementation of the PPSM Embedded System OS in the Satellite Position User Terminal Product

通过对嵌入式多任务操作系统PPSM主要特点的分析,说明了北斗卫星定位用户终端接收机利用PPSM操作系统在Motorola“龙珠”芯片上实现任务处理的应用。具体研究了PPSM操作系统利用中断、任务跳转和数据库实现任务处理的方法,详细阐述了系统任务。

From analyzing the main features of the multi-task operating system PPSM,the paper shows the application of the PPSM with the Mortorola's Dragball family chip MC68VZ328 and research the method of using the interrupt,task and database to manage the tasks with the PPSM operating system in the Beidou User terminal. Besides of these, this paper also presents the creation and implementation of the system task and database detailed.