基于边界扫描技术的线缆测试设备设计

A Design of Line Test Equipment Based on Boundary Scan Technique

摘要:

为了解决装备中大量线缆通断测试的需求,将边界扫描测试技术应用到线缆测试中,线缆之间连接关系转化为大规模逻辑器件之间的连接关系,利用信号收发判断连接关系的正确性;试验证明,测试设备能够短时间内,准确查找到线缆的错连、少连、多连等错误类型,测试结果准确可靠,满足大量线缆测试的需求,也为边界扫描技术的扩展应用提供了一种有益的参考。

Abstract:

It is difficult to solve the problem of large amounts of lines open and short faults. The boundary scan technique is applied to the line test. So the connection between lines is changed into wire between large scale integrate circuit. The correction is judged by transforming and sending signals. This test equipment can solve the problem of line testing by experiment. The equipment can find wrong wire exactly for a short duration. The result is exact and reliable. The equipment satisfies the needs of large amounts of line test. It provides a good reference for the development of boundary scan.