基于FPGA的简易逻辑分析仪设计

基于数字信号采集及数字示波器存储显示原理,并以AT89S52单片机和现场可编程门阵列(FPGA)组成的最小系统为核心,采用数字信号发生器模块、由模拟开关和A/D采样组成的信号并行采集电路、触发模块、数据储存模块和显示电路等构成简易逻辑分析仪.该分析仪的功能全面,价格低,能实时分析8路数字信号,具有很高的实用价值.

Design of simple logic analyzer based on FPGA

Based on the principle of logic signals acquisition and the digital oscilloscope and storage display, the design of simple logic analyzer is presented in this paper.The core of the logic analyzer is AT89S52 and FPGA (EP1C6Q240C8). This simple logic analyzer consists of digital signal generator,trigger module,data storage module,display circuit and parallel signal acquisition circuit including analog switches and A/D sampling.The logic analyzer features all functions, low cost and analyzing real-time 8-chann...