连接计算机并口的数据采集系统

摘要

针对目前大多数导弹测试数据都从测试计算机并口输出,设计了基于单片机对测试数据进行并口采集的系统,通过介绍打印机的工作模式和工作时序,给出了并口数据采集的原理、系统的接口电路和软件编程的流程图,且给出了中断程序的代码,最后通过用样本数据调试系统,证实该系统数据接收效果令人满意、实时性好。%Most missile test data is output from the parallel port,the article designed the parallel data acquisition system based on singlechip.The article introduced the printer mode and timing of work,then gave the principle of parallel data acquisition,the system interface circuit and software programming flow chart,and gave the code of the interrupt program.Finally the article confirmed that the system receiving the data was satisfactory,good real-time by debugging the system of using sample data.