debugging tool
7.This paper introduced the basic organization and principle of device driver model WDM based on Windows2000/XP,and then probed a way of working out the WDM dirver for PCI device using DDK,Such driver can access the configuration space physical memory and I/O port of PCI device and realize the interrupt service routine,and at last,selected SOFTICE for debugging tool and described the basic procedure of debugging PCI device.
10.By the use of open Architecture CNC system based on industry PC for horizontal machining center,the real data relation of NC-PMC- machine tool is studied in this paper , the modularized program structure and development metho d of PMC software with C++ are discussed,and the common debugging steps of modularized PMC software in concert with machine adjustment are summed up.

