摘要
介绍用 MCS-96系列单片机构成的在线误码仪中固化的控制程序 .利用 CPU的可程控的中断挂号和屏蔽机制实现高效的进程调度 .介绍了数据处理中的若干问题 .提出的“四点二次插值”算法比普通的三点抛物插值计算量增加不多 ,精度可以提高到相当于节点密度增加到 2倍的效果 .本软件用
The control program firmed in ROM of on line bit error monitor,an instrument based on MCS 96 class microcontroller,is introduced in this paper.Process scheduling is implemen ted by the programmable interrupt pending and masking architecture of CPU and getting high efficiency .Data processing is also discussed about,one of which proposed is “4 point parabolic interpolation ”.Contrasting with traditional “3 point parabolic interpolation ”,this algorithm is increased little in computation time and improved markedly in precision,corresponding to “3 point” algorithm with twice concentrated nodal points.Using the function to define character font of E 1330 LCD controller makes Hanzi display easy and efficient.This software is developed on FORTH cross compiler.
出处
《西北纺织工学院学报》
1999年第4期361-366, ,共6页
Journal of Northwest Institute of Textile Science and Technology
关键词
误码仪
插值
液晶控制器
汉字
单片机
控制程序
软件设计
bit error monitor,interpolation,LCD controller,Hanzi,microcontroller, microcomputer based instrument
