基于嵌入式系统的简易逻辑分析仪设计  

Design of simple logic analyzer based on embedded system

作　　者：许可行 吴帅 周晓华 

机构地区：[1]火箭军指挥学院,武汉430012

出　　处：《国外电子测量技术》2017年第7期77-81,共5页Foreign Electronic Measurement Technology

摘　　要：基于数字信号采集处理以及数字示波器存储显示原理,提出了一种简易逻辑分析仪制作方案。该系统主要由C8051F020与FPGA最小系统模块、ADC采集模块、信号衰减模块及TFT触摸显示模块组成。该设计采用单级、三级触发方式判断,可同时对8路信号进行采集、触发、存储及显示。经实验验证,该系统具有较高的测试速率、能实现多通道输入、可进行多级触发等优点。This paper presents a solution scheme to realize the simple logical analyzer based on digital signals processing and digital storage oscilloscope principle.The system is mainly composed of minimum system of C8051F020 and FPGA,ADC converting module,signal attenuation module and TFT Touch-Screen.The design uses single stage and third stage trigger.Meanwhile,the system can collect 8channels of analog signals,trigger and storage.The experiment indicates that system has the advantages ofhigh-speed test,multichannel input,multi-mode triggers.

关 键 词：数字信号 逻辑分析仪 触发 多通道 

分 类 号：TM932[电气工程—电力电子与电力传动]