摘要
提出了一种基于USB接口电路的多芯电缆检测方案,开发了多芯电缆检测仪。利用CY7C68013A作为主控芯片,通过控制多路模拟开关的通断,对输出端口进行扫描,确定电缆的短路以及断路,并把检测结果实时显示。介绍了接口芯片的特点,详述了固件的设计以及驱动程序的开发。系统使用了USB接口电路和模拟开关组,具有即插即用、准确度高等优点。
A multi-core cable detects method based on USB interface circuit was presented,and designed multi-core cable detector. It utilizes CY7C68013A as the master chip to implement the multi-channel analog- switch cluster,then scans the output ports and determines the status of the cable,including short circuit and open circuit, which is displayed in real time. The features of interface chip are introduced, and the designs of firmware and driver applications are presented in detail. Using USB interface circuit and analog-switch cluster,the system provides plug-and-play capability and high accuracy.
出处
《科学技术与工程》
2010年第2期511-514,共4页
Science Technology and Engineering
