针对专用总线电路板模件，利用一种通用电路测试仪，设计了一个专用总线电路模件测试维修平台。
A test and maintenance platform using a general circuit board tester was designed for testing special BUS using circuit modules.
测试仪设计有隔离的RS485标准串行口，通讯协议兼容研华ADAM4000系列，能够直接接入RS485总线网络。
The meter is designed with isolated RS485 series interface and standard communication protocal compatible with ADAM4000 and can be connected to control network directly.
本论文的主要工作： 1。在充分了解CY7C68013等元器件的知识基础上，设计基于USB总线的激光粒度测试仪数据采集硬件系统。
The main work includes: 1. Designing the data acquisition hardware system of Laser Particle Sizer based on USB bus after knowing well such components as CY7C68013. 2.
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