The Design Of ROIC Signal Acquisition System Based On PCI Bus

As an important device of information acquisition, IRFPA is being applied widely. ROIC is one of the most important portions of IRFPA. It is important for ROIC and IRFPA evaluation to acquire precise data rapidly. That will prompt ROIC development and research.How to collected the ROIC and IRFPA 's signals in high performance? It is necessary to push out a new system to satisfy its requirement. Fortunately, a new advanced computer local bus (PCI bus) was introduced by Intel Corporation in 1993. PCI bus can transfer data in 132 MB/S, overcome the speed problem of ISA bus. The project is to design an ROIC Signal acquisition system based on PCI bus.In this paper the fundamental theories of ROIC, property of PCI bus are introduced. Focuses on one key techniques of PCI bus: auto Configuration technology. Usually there are two methods to interface to PCI bus, one is by CPLD, and the other is with ASIC chips. The project is designed with PLX 9050 chip and ameliorated with PLX9054. PCI core is designed for CPLD.Device driver is the bridge to hardware and Windows 98/2000. The paper describes Windows98/2000 system structure and the driver's function, introduces some popular driver development kit, such as DDK, Soft ICE, and WinDriver. Then analyzes the common problem what will meet in PCI device driver development and their solutions. At the last chapter, introduces the applied program including PCI bus access and ROIC signals acquisition.