共查询到20条相似文献，搜索用时 156 毫秒
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介绍了在TI公司TMS320VC5409 DSP应用系统中TMS320VC5409与SST29LE010型FLASH存储器的硬件连接,给出了DSP对外部FLASH存储器的读、写操作过程,特别是通过仿真器和CCS开发软件对DSP外部FLASH存储器实现程序设计和仿真的方法,说明了DSP系统加电后的用户程序自举引导(bootload)过程。 相似文献
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FLASH存储器容易出现单个数据位错的常见问题,本文提出了基于海明码的二次校验编码方法。相比以往的扩展海明编码方法,该方法提高了编/解码的效率和纠错能力,有利于提高FLASH存储器的数据安全性并延长了FLASH存储的使用寿命。 相似文献
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介绍AT45DB161大容量SPI串行FLASH存储器在PHILIPS的ARM7系列单片机LPC213X/214X中的应用,重点介绍硬件电路设计及软件编程方法。 相似文献
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闪速存储器(Flash Memory)是目前在嵌入式产品中广泛使用的一种存储器，它是一类非易失性存储器NVM(Non-VolatileMemory)，即使在供电电源关闭后仍能保持片内信息，目前市场上主要有两种类型NOR和NAND，本介绍其中的NAND FLASH。 相似文献
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介绍了一种新型的8位串行接口LED和智能控制芯片HD7279A的特点及其在时钟芯片DS12887中的应用。该芯片具有串行接口,占用I/O口少,硬件电路简单等特点,在实际中具有广泛的应用价值。 相似文献
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谢晓英 《中小学实验与装备》2008,(2):18-19
1系统构成
本系统中信号的核心处理部分是单片机,在系统设计时采用的是AT89C52单片机,在显示驱动部分采用的是TRULY公司生产的MEP-G240320DPEW．1W模块,采用C51编程语言说明一下LCD模块在实际中的应用。AT89C52由于内部程序存储器采用的是FLASH存储器,分利用C51语言的灵活性取出其字符的点阵数据,存入显示存储器,进行显示。 相似文献
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为了实现实验室试验环境温湿度的实时监测、多点无线测量、自动记录等功能,设计了一种实验室温湿度无线监测系统,并介绍了该系统的工作原理和硬件结构,分析了软件流程。该系统由无线单片机芯片CC1110和温湿度传感器SHT11构成数据采集端和发送模块;由CC1110、FLASH存储器、液晶显示、串行接口等电路构成数据接收模块,并与计算机连接。计算机监控程序负责处理接收模块传来的数据,并将其存储到数据库SQL Sever;通过监控画面显示实时数据和随时间变化的趋势曲线;检测员可通过计算机监控程序随时调用环境温湿度历史数据。经过实际应用证明,该系统性能良好,具有稳定、精度高、操作方便等特点。 相似文献
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高性能DSP处理器与FLASH存储器的接口设计是开发基于TMS320C6000的嵌入式实时系统的一项重要技术。在CCS集成开发环境下，通过JTAG口对TMS320C6701片外FLASH存储器进行在线擦写，并在基于TMS320C6701开发的信息处理系统中测试通过。 相似文献
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Information is presented about the organization of graduate studies, based on questionnaire responses of 582 coordinators of Canadian graduate programs. These coordinators, who were representative of disciplines and geographic regions, provided information about a wide range of matters, including enrolments, staff, admissions, supervision, research, publications, financial support, teaching experience, and completion rates and times. Many substantial differences were noted among the percentage frequencies of responses for departments classified by discipline and size. For example, students were perceived to choose their doctoral theses topics themselves much more frequently in education, social sciences, and humanities than in engineering, medical sciences, physical sciences, and biological sciences. Also, departments with smaller numbers of full-time graduate students tended to provide all doctoral students, with some teaching experience to a greater extent than did larger departments. 相似文献
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实践的自由与美的范畴 总被引：10，自引：0，他引：10
张玉能 《华中师范大学学报(人文社会科学版)》2003,42(1):47-53
人，作为个体的生存，从实践（以物质生产为中心）出发才逐步生成，而在实足走向创造的过程中，人们才不断达到一定的自由境界。正是人的实践－创造的自由使自然人化，人也人化，从而产生出人对现实的审美关系；这种审美关系体现对象之上就是美，而体现在人本身之上则是美感。人类的实践－创造的自由同样是一个历时性的过程和一个共时性的结构，因此，它不仅有不同的自由程度和不同的自由境界，而且还有自由，反自由，不自由，准自由等几个维度；与这些不同的自由给度相关便形成了美，丑，柔美，刚美，悲剧性，喜剧性，滑稽，幽默的相应的美的范畴，并形成各个美的范畴之间的过渡，转化，对应等关系，从而形成一个完整的美的范畴体系。 相似文献
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张之沧 《淮阴师范学院学报(哲学社会科学版)》2005,27(3):301-306,311,419
理查德·罗蒂立足后现代主义、解构主义、文化自由主义、相对主义和后哲学文化论,建立的协同性实用主义,批判分析哲学、现象学、传统的认识论、反映论、符合论和真理观,肯定解释学的功能与教化作用,否定客观性、绝对性、永恒性和不变性,反对理性主义、科学主义和实在论,主张解构形而上学,创立无冕哲学,提倡工具主义、约定主义、实用主义、多元主义,以及心灵与社会的协同性作用。 相似文献
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劳伦斯与非理性主义 总被引：1，自引：0，他引：1
刘洪涛 《北京师范大学学报(社会科学版)》2006,(3):41-48
以叔本华、尼采、弗洛伊德为代表的非理性主义是劳伦斯小说创作的思想基础。受叔本华影响,劳伦斯把生存意志作为人物行动的基本动力,这主要表现为向性力和精神占有欲。受尼采影响,劳伦斯赞美躯体,重视生命的内在能量和自我超越性,并与基督教决裂,成为西方基督教道德观的激烈批判者。劳伦斯在性与无意识这两个领域,对弗洛伊德精神分析理论有接受,也有超越。弗洛伊德与劳伦斯都把性、无意识与文明对立起来,但弗洛伊德进行的是否定性研究,强调对其疏导和控制,劳伦斯则认为性与无意识是原初的创造性力量,是生活的源泉,是对抗人之社会化和理性化的正面力量。非理性主义丰富和深化了劳伦斯对现代人心理世界的理解,加强了他的小说的社会批判力量。 相似文献
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着重描述湖南邵东保和堂柳东早二叠世早期栖霞组底部首次发现的史塔夫 (Staffella)类动物群 ,共 5属 2 0种 ,这五属分别是史塔夫亚科的 Staffella,Pseudoendothyra,Nankinella和卡勒亚科的 Sphaerulina,Pisolina.该类动物群笔者曾命名为 Pseudoendothyra jazvensis带 .这一发现不仅填补了湘东南栖霞组生物地层学研究的空白 ,而且对我国南方石炭、二叠纪的生物地层划分提供了新的依据 相似文献
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作为教法中的教学模式系统,是由要素构成的。已有的成功的教学模式,其所构成的共同要素是:目、趣、序、思、练、诊、结七者。 相似文献
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Elizabeth Cavicchi 《Interchange》2008,39(4):415-442
A teacher and a college student explore experimental science and its history by reading historical texts, and responding with
replications and experiments of their own. A curriculum of ever-widening possibilities evolves in their ongoing interactions
with each other, history, and such materials as pendulums, flame, and resonant singing tubes. Narratives illustrate how questions,
observations, and developments emerge in class interactions, along with the pair’s reflections on history and research. This
study applies the research pedagogy of critical exploration, developed by Eleanor Duckworth from the interviewing of Piaget
and Inhelder and exploratory activities of the 1960s Elementary Science Study. Complexity as the subject matter opens up possibilities
which foster curiosity among participants. Like Galileo, Tyndall, Xu Shou, and others, this student recurrently came upon
new physical behaviors. His responses to these phenomena enabled him to learn from yet other unexpected happenings. These
explorations have implications for opening up classrooms to unforeseen possibilities for learning.
Teaching . . . is more about a conscientious participation in expanding the space of the possible by creating the conditions for the emergence of the not-yet-imaginable. . . . Teaching, like learning, is not about convergence onto a pre-established truth, but about divergence - about broadening what can be known and done. In other words, the emphasis is not on what is, but what might be brought forth. Teaching thus comes to be a participation in a recursively elaborative process of opening up new spaces of possibility while exploring current spaces. (Davis & Sumara, 2007, p. 64)相似文献
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A K Nandakumaran 《Resonance》2006,11(12):45-55
In this article, we present certain topics such as quadrature of planar regions, introduced prior to the invention of calculus
by Newton, and consider his other mathematical contributions, to binomial theorem and infinite series, cubics, theory of equations
and imaginary roots. As the development of calculus and its enormous applications are well known, we will not discuss much
about it.
Earlier, he was in TIFR, Bangalore. His research interests include partial differential equations, homogenization, controllability
and control problems, analysis, etc. 相似文献
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隐性衔接语篇连贯指的是不含显性衔接手段,如替代,省略,重复等,实现语义连贯的语篇。作为一种特殊的语言现象,隐性衔接语篇也是一种心理上的表征,是人类对认识世界的经验总结从语言上的反应。理想化认识模型（ICM）是人们在特定的文化背景中对某领域中的经验和知识所作出的抽象的、统一的、理想化的理解,它具有关联性、选择性、典型性,体验性等特征。正是因为人类对认知世界的体验,形成各种认知模型（CM）,而认知模型（CM）稳定而有规律,具有典型性特征。在认知过程中,各种认知模型（CM）之间的互相关联与相互选择,正好为人们解读隐性衔接语篇提供了认知上的新视角。 相似文献
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M. Gail Jones Ron Blonder Grant E. Gardner Virginie Albe Michael Falvo Joel Chevrier 《International Journal of Science Education》2013,35(9):1490-1512
Nanotechnology has been touted as the next ‘industrial revolution’ of our modern age. In order for successful research, development, and social discourses to take place in this field, education research is needed to inform the development of standards, course development, and workforce preparation. In addition, there is a growing need to educate citizens and students about risks, benefits, and social and ethical issues related to nanotechnology. This position paper describes the advancements that have been made in nanoscale science and nanotechnology, and the challenges that exist to educate students and the public about critical nanoscience concepts. This paper reviews the current research on nanotechnology education including curricula, educational programs, informal education, and teacher education. Furthermore, the unique risks, benefits and ethics of these unusual technological applications are described in relation to nanoeducation goals. Finally, we outline needed future research in the areas of nanoscience content, standards and curricula, nanoscience pedagogy, teacher education, and the risks, benefits, and social and ethical dimensions for education in this emerging field. 相似文献