Research And Application Development Of LINUX OS Device Drivers Based On XUP Virtex-Ⅱ Pro XC2VP30 FPGA

Since 1967, Dr. Bell and Professor Hewish discovered pulsar signals in the laboratory, and the rotation period characteristics of the pulsar has a very broad application prospects, the United States, ESA, etc. have been carried out using pulsar navigation for self-navigation technology research. In recent years, Xi’an Institute of Optics and Precision Mechanics of CAS also conducted experimental research related, but the early stage of autonomous navigation in deep space, in order to study the relevant technical and financial issues of autonomous navigation to consider, on the ground to establish the X-ray pulse Stars ground simulation system, the entire pulsar navigation ground simulation system includes five parts:X-ray analog source, a vacuum environment, X-ray detector acquisition system, the photon arrival time measuring circuit system and the rear part of the computer processing. The background is the subject of this paper in cooperation with the Xi’an Institute of Optics and Precision Mechanics of CAS:Development of X-ray detector splice time measuring circuit, namely the development of photon arrival time measuring circuit system parts. Photon arrival time measuring circuit system is to measure the pulse arrival time (Timing of Arrival, TOA), the whole idea of the photon arrival time measuring circuit part of the system is:combining Xilinx’s Virtex-Ⅱ pro development board, and the advantages of Linux operating system to Linux OS kernel is based on the correlation photon arrival time to study driver circuit measurement system, on this basis, the use of XUP Virtex-Ⅱ Pro development platform, the customized embedded Linux OS operating system with PowerPC 405D processor dual-core system to achieve the TOA original observations - the number of photons and reach optimal control of time in order to improve the pulsar navigation accuracy. And thus to obtain complete and high precision real-time X-ray pulsar navigation systems will drive R & D program to lay the theoretical and experimental basis on a Linux system. Therefore research and application development based on XUP Virtex-II Pro XC2VP30 FPGA’s Linux OS drivers is necessary.Based on the preliminary work on the work carried out by the Institute include:photon arrival times of Circuit - TDC time digital converter circuit measurements; embedded Linux OS operating system of cutting and transplantation, including cross-compiler tool chain production, the root file production problems mount system, kernel cutting and transplantation, and basic hardware platform to build and peripheral TDC IP cores; photons in data collection terminals to display data appeared fine time to repeat the situation, the photon arrival time data to explore the fine time data Repeat the causes and solutions; ps time resolution can not be achieved below the rank seek its causes and alternative solutions.