The Development Of High-speed Data Acquisition Module Based On ISP

Nowadays, Science technology changes quickly. At the same time, as the appearance of LSI(Large Scale Intergration) and the development in embedded system (including single-chip microcomputer and DSP), it rapidly makes us go into information age. As we know, information technology means acquisition of information, communication and computer technology. Because data acquisition technique is an importance way to acquiring message, so data acquisition system is an indispensable component of signal and information processing system, which has been developed rapidly with the advancement in technology of micro-electronics and computer.The paper is under the background of 'Remote Electric Quantity Management System', which is a project of HuBei Fenghuo communication Ltd. Co. In addition, the paper mainly discusses and analyzes the theory and structure of high-speed data acquisition system and anti-jamming technology. At the same time, it also introduce the important part in the system, which is the process of developing hardware, designing system software and programming in VHDL.The specific point of the paper is hardware designing in data acquisition, CPLD designing and programming communication interface with computer. Based on designing in data acquisition system of computer and single-chip microcomputer, and combined with technology of high-speed data acquisition, method of implementing the design is present, which is implementing every function of the system by acquiring method of combining hardware with software in computer acquisition system. In addition, C++ Builder, which is one Windows programming tool that is the most popular tool currently, is used for designing program of communicating between single-chip microcomputer and computer. Because rapid application development and great C++ language function are integrated into C++ Builder, which also includes IDE (integrated development environment) and VCL (visual component library), the period of developing program is reduced, and the quality of programming code is improved.The paper also discusses lots of circuit in data acquisition system, just like A/D convert circuit, logic control circuit, address bus circuit, data-storage circuit and communication interface etc.As a consequence, there are hardware design picture, PCB chat in the appendix of the paper.In the end, the high-speed data acquisition module is very good in function and application. Because using ISP technology, it makes develop project more rapid and makes modify hardware circuit more easy. So combined with use of software, the module is applied for data acquisition device or other front-end equipment in data process.