摘要
为满足复杂数字电路故障诊断的测试需求,研究并设计了一种基于FT2232H的边界扫描测试控制器,完成了系统的硬件设计与软件设计。其中,硬件设计以FT2232H芯片为基础,可以方便快速地实现USB/JTAG双向转换,且USB数据的收发和各种协议转换工作全部由转换器独立完成;测试软件在VC6.0环境下开发,通过面向对象编程及数据库设计,实现了系统的协调运行。该测试控制器能增强测试设备的故障诊断能力,提高电子设备的可测性,具有很高的工程应用价值。
In order to satisfy the requirement of the fault diagnosis of complicated number electric circuit, this paper designs the boundary-scan test controller based on FT2232H. The hardware system is based on FT2232H, and it can achieve two-way conversion between USB and JTAG and reception and sending of data and a variety of USB conversion protocol are done by the converter independently. The software is developed on VC＋＋6.0 with object-oriented programming method and data-base, which is used to complete coordinated operation of the system. The diagnosis capacity and measurability of the test equipment are improed, so it is of high value to engineering application.
出处
《机械制造与自动化》
2013年第1期93-96,123,共5页
Machine Building & Automation
