基于MultiSim10的MCU实时性仿真与研究  

MCU Immediacy Simulation and Research Based on Multisim10

作　　者：张小进[1] 

机构地区：[1]闽江学院计算机科学系,福州350108

出　　处：《湖南工程学院学报（自然科学版）》2011年第4期50-54,共5页Journal of Hunan Institute of Engineering(Natural Science Edition)

摘　　要：为了验证MultiSim软件在MCU系统数码管动态显示仿真中实际效果不能连续显示的问题,提出一种基于MultiSim10的MCU软硬件检测仿真方案.该方案采用环形计数器作为动态显示的位选通信号、撇开了软件延时的影响,用MCU系统测试数码管动态显示的效果,其定时器在指定的时间内进行计数以统计实际位选通的次数.该方案实际测试的结果表明:在操作系统的线程时间配额作用下MultiSim软件对于数码管动态仿真中的实际效果是不能连续显示.A test solution combining with software and hardware is presented to demonstrate the discontinuity of digital LED dynamic display in the MCU system,in which a ring counter accumulates the actual selection signals in a fixed period of time for each digital LED in the dynamic display engaging a MCU in order to avoid latency of programs.The result of the test indicates that affected by the thread timing of OS,the digital LED display is discontinuous while simulating the dynamic display of digital LED with Multisim.

关 键 词：微处理器单元 实时性 仿真 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]