Design And Implementation Of High-speed PCI Data Acquisition Card

The PCI bus is the most popular computer local bus with its advantages such as high performance, low cost, openness, processor independence, software transparent etc. In the field of radar signal processing, we usually need real-time data acquisition, transmission and store. In order to resolve these problems above, this paper brings forward an implementation scheme of high speed data acquisition card based on PCI bus, so that the sampled data can be analyzed and proessed since it is continuously sent to host memory in a short time, in this way, high speed data acquisition and transmission is realized, and good results is obtained.In this paper, we first introduce a brief history and its major feature of PCI, then, the whole scheme of PCI card is designed. As the aspect of hardware, this article particularly discusses schemes and circuit realization of five function modules, which include signal adjustment, A/D conversion, data buffer, PCI interface and logical control. Much attention has been paid to the data transmission mode of PCI9054, as well as the design of card internal control logic with VHDL and diagram, after that, relative timing sequence simulation and logic verification is also made, besides, we introduce the process of PCB production and the method of hardware debugging. About software, we develop the driver and application program of PCI card under WinDriver and Visual C++.