基于PCI总线的IRFPA数据采集系统

在红外图像采集系统中，需要提高系统数据传输速率来满足高速实时的特点。针对红外图像采集系统的特点，将新近发展的PCI（Peripheral Component Interconnect）局部总线引入到图像采集中并对PCI总线接口技术进行了全面的介绍。详细论述了PCI总线规范，作为专用PCI总线协议控制芯片PCI9050的功能特点，采用PCI总线作为数据传输接口的高速红外焦平面阵列（Infrared Focal Plane Array）数据采集系统的实现过程，系统采有了帧缓存，使得慢速的外围电路和高速的PCI接口能更好的连接，该系统还采用了复杂可编辑逻辑器件（Complicated Programmable Logic Device）作为逻辑控制。

Real-time Infrared Image Acquisitionand Processing System Based on PCI Bus

In the system of infrared imaging acquisition, it is necessary to improve data transfer to satisfy the characteristics of high speed and real time. So,this paper introduces PCI bus and PCI inerface to imaging acquisition. The protocol of data transfer of PCI local bus and the structure of PCI9050 are studied in detail, and the IRFPA data acquisition system are described based on the protocol of data transfer of PCI local bus. The system adopts frame buffer to make slow transmission between peripheral circuit and PCI bus.CPLD is also used as a master of logic time control?