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在高精度激光卫星测距系统中,我们选用了美国DEC公司的PDP 11/44作为控制计算机,并配以RSX-11M实时操作系统。在该操作系统下,我们采用了连接中断(CONNECT-TO-INTERRUPT)的方法,书写了该测距系统中的用户非标准设备的驱动程序(Device Driver)。该驱动程序的主要特点是:1.驱动程序包括在用户任务中,而不是作为一个模块合并到操作系统中。从而使得核态与用户态之间的数据交换大为方便,且使
In the high precision laser satellite ranging system, we choose the DEC 11/44 of American DEC as the control computer, and match RSX-11M real-time operating system. Under this operating system, we adopted the CONNECT-TO-INTERRUPT method and wrote the Device Driver for the user’s non-standard device in the ranging system. The main features of this driver are: 1. The driver is included in the user’s task, rather than being incorporated into the operating system as a module. Thus, the data exchange between the nuclear state and the user state is greatly facilitated and enabled