| GPIB-VXI Convertor as a Master in the VXI system usually, is a bridge of other VXI devices and controller. It?s capability is related to VXI system's efficiency. The paper fully discussed the way of GPIB-VXI convertor hardware designment, and resource monitor and controller designment, and VISA (Virtual Instrument Siftware Architecture) Hardware designment: VXI interface controller circuit, Address coding circuit, RAM chip selected circuit, VXI dataladdress bus converted circuit, GPIB interface circuit, MODID(module identify) circuit,reset and TTLtrigger circuit.etc.. Resource monitor and controller is used to initiate instrument, collect system information, monitor interrupt, configure system and interpret command mutually. Discussed framework of VISA, and relation of VISA, and Instrument Driver and Resource manager. |
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