飞机电网故障时，机载电气盒必须在延迟时间内切断电网，保护机载设备。采用AT89S52设计的电气盒测试仪能够测试电气盒保护功能，测量延迟时间。实际应用结果表明，该测试仪具有测量准确、可靠性高、成本低等优点。
Abstract:
The helicopter-electrical-box must shut off the helicopter power，protect the equip ...
介绍基于ISA总线与KH-9300的数据采集板卡的设置，详细说明8254定时计数器及8259中断控制器的结构特点、工作方式、控制字等，探讨中断类型、中断处理程序、中断矢量表及其填写。重点讲述使用TorboC编写中断服务程序的方法，应注意的主要问题及程序测试的结果。
Abstract:
The settings of KH-9300 data acquisition ...
The P82B715 I2C Buffer was designed toextend the range of the local I2C bus out to50 Meters. This application note describesthe results of testing the buffer on severaldifferent types of cables to determine themaximum operating distances possible. Theresults are summarized in a table for easyreferen ...
