·详细说明：ATMEL公司at89c51SND1为主控制器mp3源代码，包括三星flash U盘的实现，音乐解码等，有许多借鉴之处。ATMEL Corporation at89c51SND1 primarily controller mp3 source code, including Tristar flash U plate Realization, music decoding and so
上传时间： 2013-04-24
上传用户：playboys0
为了提高PCB板制作的效率，改变传统的化学腐蚀制板工艺，使用机械仿形铣制作电路板的方法，设计了以ATMEGA16单片机为核心部件的PCB板雕刻机控制系统。其中包括PCB雕刻机的基本功能、主要硬件电路设计和软件的实现流程，并给出了相关设计电路。重点分析了雕刻机步进电机的驱动电路以及主轴电机的驱动电路，该雕刻机经实际运行，系统工作良好，可有效提高PCB板的制作效率。 Abstract: In order to improve the efficiency of production of PCB board and change the traditional chemical etching plates， using of mechanical copying milling method makes circuit boards，this paper introduces the PCB engraving machine control system used ATMEGA16 microcomputer as the core components. It includes basic function， the hardware circuit design and software Realization process， and gives the corresponding circuit design.It analyses the drive circuit of engrawing machine stepper motor and spindle motor in detail. This engraving machine by practical operation， the system works well， which can effectively improve the production efficiency of PCB board.
上传时间： 2013-10-17
上传用户：liangliang123
介绍基于VHDL的微型打印机控制器的设计。论述了微型打印机的基本原理，以及实现控制器的VHDL语言设计。打印机的数据来自系统中的存储模块，根据需要控制打印。该微型打印机控制器可取代传统的微型打印机,且抗干扰性好,可靠性高，具有较强的移植性，稍加改动就可应用于不同场合。 Abstract: This paper introduced the design method of micro printer controller based on VHDL.The basic principles of microprinter is explained,as well as the Realization of the controller by VHDL language.The printer data is from the system memory modules,can control printer.The design of microprinter controller has antigood and high reliability，it can replace the traditional printer.The controller has very good portability,and need little modify that can use in different situation.
上传时间： 2013-11-03
上传用户：dudu1210004
应用德国Micronas公司的CDC3207G微控制器开发了一款汽车仪表板系统。详细地介绍了该系统的硬件原理，以及步进电机，音频控制，LCD显示，LED指示灯和报警灯等几个模块的实现方法。应用μC/OS-II实时操作系统开发软件。着重介绍了启动代码的设计和任务的规划。 Abstract: A dashboard system is developed by using CDC3207G microcontroller made by Micronas.The hardware of the sys-tem and the Realization of the step motor module,audio module,LCD display and LED indicator and alarm module are ex-plained in detail.The μC/OS-II real-time operating system is used for the software development and the starting code design and the task planning is explained specifically.
上传时间： 2013-10-26
上传用户：x4587
介绍了基于单片机C8051F020的通用串口适配器的设计与实现方法，即由单片机控制的智能化一对多口收发信号转换器。通过采用C51对单片机进行编程，控制与RS-232（标准RS-232电平）、RS232(TTL电平)、RS-422接口的数据通信；采用C++ Builder作为开发平台，通过RS-232接口实现上位机对适配器各个通信端口的控制。 Abstract: Design and Realization of a universal serial port adapter based on the MCU C8051F020 are introduced.The adapter is an intelligent one-to-more receiving and transmitting signal converter controlled by the MCU. By programming the MCU with the language C51,MCU control data communication between the MCU and RS-232(RS-232 level),RS-232(TTL level),RS-422 port; Using C++ Builder as the development plane, by one RS232 port, the upper PC can control each of the communication port of the adapter.
上传时间： 2013-11-19
上传用户：hebanlian
针对无位置传感器无刷直流电机的位置检测问题，本文应用单片机成功地实现了一种软件检测方法，并给出了实测波形加以验证。关键词： 无刷直流电机 无传感器 位置检测Abstract: As to the position-detecting problem of sensorless brushless DC motor, a softwareRealization by microcomputer is proposed successfully in the paper. Experiment results are also presented to verify the method.Keywords: brushless DC motor, sensorless, position detecting
上传时间： 2013-11-01
上传用户：aappkkee
CAN与RS232转换节点的设计与实现 介绍将CAN总线接口与RS232总线接口相互转换的设计方法和2种总线电平转换关系，实现CAN总线与各模块的接口设计，制定了相应的软硬件设计方案，并给出软件设计流程图以及部分硬件设计原理图。为CAN总线与RS232总线互联提供了一种方法，对CAN总线与RS232总线接口设备的互联和广泛应用的实现具有重要意义。关键词：CAN总线；RS-232总线；串行通信Design and Realization of CAN and RS232 Transformation NodeZHOU Wei, CHENG Xiao-hong(Information Institute, Wuhan University of Technology, Wuhan 430070)【Abstract】This paper introduces one design method of the CAN bus interface and the RS232 bus interface interconversion, emphasizes two kindof bus level transformation relations, realizes the CAN bus and various modules connection design, formulates the design proposal of correspondingsoftware and hardware, and gives the flow chart of software design as well as the partial schematic diagram of hardware design. It providesonemethod for the CAN bus and the RS232 bus interconnection, has the vital significance to widespread application Realization of the CAN busand theRS232 bus interface equipment interconnection.【Key words】CAN bus; RS-232 bus; serial communication
上传时间： 2013-11-04
上传用户：leesuper
介绍了以PLC为控制单元，变频器为执行单元的控制系统及其在烟支输送储存系统中的应用，并给出了系统的组成、硬件的配置及具体的实现方法。关键词 : PLC 变频器输送储存系统 Ab str ac t;T hisp aperi ntroducest hec ontrols ystem whichc onsistso fP LCa ndf requencyc onvertera ndi ts application in the buffer conveyor for cigarettes. The system constitute, hardware disposal and Realization method are also presented in detail.Keywords:PLC f requencyc onverter b ufferc onveyor
上传时间： 2013-10-22
上传用户：ouyang426
This text surrounds the development of the electric power SCADA system exactly, aiming at the present condition of the our country electric power charged barbed wire net currently, according to the oneself at the e- lectric power protect the profession after the electricity in seven years of development, design and adjust to try the experience on the scene from following severals carry on the treatise:Is the emergence to the system of SC- ADA and developments to introduce first Carry on the introduction elucidation to applied present condition and the development foregrounds of various terminal equipments communication agreement(rules invite) the next in order Then is the elucidation to the windows the bottom according to the mfc the plait distance environment an- d VC++6.0 plait distance softwares Carry on the more detailed treatise to the Realization of the procedure struct- ure frame and the source code again End is the applied case example give examples.
标签： the development surrounds electric
上传时间： 2014-10-28
上传用户：liuchee
Coaxial feed structures are widely used in ultra-wide band antennas . This paper modeled the characteristic of the monopole antenna feeded by coaxial line by FDTD in the time-domiain,which showes that . Firstly, it introduced the theory of the arithmetic and the particularly Realization in the calculation then it described the use in the time-domain finally it analysed several characteristics of the monopole antenna. The arithmetic used in the microstrip antenna is also a quick and economical way to design the antenna.
标签： structures ultra-wide antennas Coaxial
上传时间： 2016-06-28
上传用户：朗朗乾坤
