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1.
本文阐述了一种适用于科研和教学的STD总线兼容单片机仿真器的设计方案及其特点,文中还给出了该仿真器在教学上的典型应用实例。  相似文献   

2.
针对MCS-51单片机仿真器操作繁琐,维护困难这一情况,这里利用VB这一“可视化”和“面向对象”的语言,开发了基于Windows平台的单片机实验仿真系统,该系统的特点是编辑直观,人机交互性好,并提供了一套集成调试环境,可脱离仿真器独立运行于PC机之上,具有良好的扩展性和应用前景.  相似文献   

3.
杨华 《中国西部科技》2011,10(4):43-44,21
单片机工程开发,使用最多的是仿真器,而PROTEUS在单片机教学以及工程前期开发起到优化电路设计,节约成本,提高工程开发进程和效率的作用,充分挖掘PROTEUS软件的潜力,与工程开发效果同步,必然需要用到PROTEUS的仿真器功能。文中将说明仿真器的相关设置,并通过实例来说明如何运用。  相似文献   

4.
本文提供了一种基于双端口存储结构的通用型在线仿真器。该仿真器由IBM-PC徽机、存板和目标机仿真板组成,适合于开发8位总线非驻留ROM型的微处理机。文中还给出了8098单片机仿真实例。  相似文献   

5.
本文在对单片机和EICE51在线仿真器作简单介绍的基础上给出了用早已被人们废弃不用的APPLE-Ⅱ微型计算机(苹果机)作为单片机开发主机进行单片机实验和单片机应用系统开发的操作方法。  相似文献   

6.
简要介绍了USB接口芯片SPCP825A的功能,列举了一种SPCP825A芯片在仿真器接口上的应用实例,解决了以往单片机仿真器使用过程中常出现的接口故障所带来的诸多麻烦和不便。  相似文献   

7.
本在对单片机和EICE51在线仿真器作简单介绍的基础上给出了用早已被人们废弃不用的APPLE—Ⅱ微型计算机(苹果机)作为单片机开发主机进行单片机实验和单片机应用系统开发的操作方法。  相似文献   

8.
文章基于Keil C51软件编译系统,论述了51系列单片机仿真器的设计思路和实现方案。该装置是一款物美价廉的单片机软、硬件的学习工具和开发工具,有着重要的使用价值和推广价值。  相似文献   

9.
分析了DICE单片机仿真器键盘与显示器的硬件结构和键值编码的特点,介绍了监控程序的设计。  相似文献   

10.
使用单片机仿真实验平台配合仿真器可以极大地提高实验效率,整个实验过程具有简洁、直观、易于调试、易于接受,和实际产品开发过程一致,提高了学生的实际学习效果。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

15.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

16.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

17.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

18.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

19.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

20.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

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