Short-time serial data acquisition system based on FPGA (field programmable gate array)

Abstract

The invention discloses a short-time serial data acquisition system based on an FPGA (field programmable gate array). The short-time serial data acquisition system is characterized by mainly comprising an A / D (analog-to-digital) conversion module and an FPGA chip; one end of the A / D conversion module is connected with a signal source, and the other end is connected with one of I / O (input / output) ports of the FPGA chip, the other I / O port of the FPGA chip is connected with an upper machine serial port of the computer. Compared with the prior art, the system provided by the invention has the advantages of simple structure, few used elements, less software required to be designed and convenience for programming. The data acquisition system can be utilized to conveniently form a simple data acquisition system.

Description

technical field [0001] The invention relates to the field of electronic information, in particular to an FPGA-based short-time serial port data acquisition system. Background technique [0002] In the application of modern electronic information technology, data acquisition systems are often used to collect various digital information, and store the collected data on the computer hard disk through PCI interface, USB interface, serial port and other computer interfaces, so as to take advantage of the powerful data capabilities of the computer , for real-time or post-processing and analysis. [0003] Nowadays, single-chip microcomputer, DSP (digital signal processing chip), FPGA (programmable logic gate array) and so on are often used in the data acquisition system as the core of data acquisition. The traditional data acquisition system generally uses a single-chip microcomputer, but the instruction cycle of the single-chip microcomputer is long and the processing speed is lo...

AI Technical Summary

Problems solved by technology

However, in order to store the data collected by FPGA on the computer, PCI interface or USB interface is generally used. Now the data acquisition system based on PCI or USB can generally realize large-scale data storage, but the disadvantage is that it also needs a special PCI interface chip or USB signal. Composing a data acquisition system makes the hardware system of the system complex, and the programming of the upper computer and the lower computer is complicated, which is not very convenient to use

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