iic总线控制器VHDL实现 -- VHDL Source Files: i2c.vhd -- top level file i2c_control.vhd -- control function for the I2C master/slave shift.vhd -- shift register uc_interface.vhd -- uC interface function for an 8-bit 68000-like uC upcnt4.vhd -- 4-bit up counter i2c_timesim.vhd -- post-route I2C simulation netlist
标签： VHDL c_control vhd control
上传时间： 2016-10-30
上传用户：woshiayin
DSR-UU is a DSR implementation that runs in Linux and in the ns-2 network simulator. DSR-UU implements most of the basic DSR features specified in the DSR draft (version 10). One big exception is flow extensions. DSR-UU does NOT use ARP, so do not be surprised if you do not see ARP traffic. DSR-UU instead uses its own neighbor table that sets up the MAC-to-IP translation during route discovery.
标签： DSR-UU implementation simulator network
上传时间： 2016-11-06
上传用户：er1219
做网格的好程序，PARAMESH is a package of Fortran 90 subroutines designed to provide an application developer with an easy route to extend an existing serial code which uses a logically cartesian structured mesh into a parallel code with adaptive mesh refinement(AMR).
上传时间： 2014-01-06
上传用户：坏坏的华仔
DDR SDRAM控制器的VHDL源代码，含详细设计文档。 The DDR, DCM, and SelectI/O™ features in the Virtex™ -II architecture make it the perfect choice for implementing a controller of a Double Data Rate (DDR) SDRAM. The Digital Clock Manager (DCM) provides the required Delay Locked Loop (DLL), Digital Phase Shift (DPS), and Digital Frequency Synthesis (DFS) functions. This application note describes a controller design for a 16-bit DDR SDRAM. The application note and reference design are enhanced versions of XAPP200 targeted to the Virtex-II series of FPGAs. At a clock rate of 133 MHz, 16-bit data changes at both clock edges. The reference design is fully synthesizable and achieves 133 MHz performance with automatic place and route tools.
上传时间： 2014-11-01
上传用户：l254587896
PowerPCB教程简介 欢迎使用 PowerPCB 教程。本教程描述了PADS-PowerPCB 的绝大部分功能 和特点，以及使用的各个过程，这些功能包括： · 基本操作 · 建立元件(Component) · 建立板子边框线(Board outline) · 输入网表(Netlist) · 设置设计规则(Design Rule) ·元件(Part)的布局(Placement) · 手工和交互的布线 · SPECCTRA全自动布线器(route Engine) ·覆铜(Copper Pour) · 建立分隔/混合平面层(Split/mixed Plane) · Microsoft 的目标连接与嵌入(OLE)(Object Linking Embedding) · 可选择的装配选件(Assembly options) · 设计规则检查(Design Rule Check) · 反向标注(Back Annotation) · 绘图输出(Plot Output) 使用本教程后，你可以学到印制电路板设计和制造的许多基本知识。 你不必一次完成整个教程，如果在任何时候退出后，下次直接找到你要进入 的部分，继续学习本教程。 当你完成了本教程的学习后，可以参考在线帮助(On-line Help)以便得到更多 的信息。如果你需要附加的信息内容，你可以与PADS 在各地办事处或代理商取 得联系，以便得到更多的帮助。 欢迎使用PowerPCB进行PCB设计！
标签： PowerPCB PADS-PowerPCB 教程 分
上传时间： 2013-12-12
上传用户：caozhizhi
最近在调试PPC上的VPN程序，总是更新路由错误。找了一个PPC的网络工具NSProfiler，挺不错的，可惜没有XX版本！一气之下自己就决定写一个路由表工具，目标就是做个图形界面的route.exe。完成版改用eVC4写了，名称也改为route.exe。
上传时间： 2013-11-27
上传用户：wsf950131
The xapp851.zip archive includes the following subdirectories. The specific contents of each subdirectory below: \rtl - HDL design files \sim - simulation files \synth - Synthesis related files \par - Place/route related files
标签： subdirectories The following includes
上传时间： 2014-01-25
上传用户：lepoke
The task in this assignment is to implement an airline routing system. Your system should be able to read in a ight network as a graph from a le, where airports are represented as vertices and ights between airports are represented as edges, take as input two airports and calculate the shortest route (ie path) between them.
标签： system assignment implement airline
上传时间： 2017-09-07
上传用户：kiklkook
There exist two essentially different approaches to the study of dynamical systems, based on the following distinction: time-continuous nonlinear differential equations ⇋ time-discrete maps One approach starts from time-continuous differential equations and leads to time-discrete maps, which are obtained from them by a suitable discretization of time. This path is pursued, e.g., in the book by Strogatz [Str94]. 1 The other approach starts from the study of time-discrete maps and then gradually builds up to time-continuous differential equations, see, e.g., [Ott93, All97, Dev89, Has03, Rob95]. After a short motivation in terms of nonlinear differential equations, for the rest of this course we shall follow the latter route to dynamical systems theory. This allows a generally more simple way of introducing the important concepts, which can usually be carried over to a more complex and physically realistic context.
标签： Systems_Rainer Introduction Dynamical Klages to
上传时间： 2020-06-10
上传用户：shancjb
一、前序对于从校园到社会转变的我，进入一家新公司，学习到的知识都是全新的，闻所未闻的，一切都是从零开始。面试进入一家新公司，从安装学习PADS9.5到完成PCB板的布局布线最终提交给厂家生产，用了一个月的时间。时间过得很快，我亦有一些感想和心得愿意同大家共分享。PADS9.5软件的安装，我就不再多说了，我会在下一篇文章里说的很详细，大家有需要的可以下载。软件安装完成之后就要进行PCB板的设计制作了，这里就有一个PADS设计流程的问题。常规PADS设计流程：设计启动>建库→原理图设计>网表调入→布局→布线→验证优化→设计资料输出→加工。（1）设计启动。在设计准备阶段进行产品特性评估、元器件选型、准备元件、进行逻辑关系验证等工作。（2）建库。根据器件的手册进行逻辑封装和PCB封装的创建。（3）原理图设计。原理图设计可以通过PADSLogi进行，（4）网表调入。通过生成网络表或PADSLayou连接器进行元件和网络表调入。（5）布局。在PADSLayouth通过模块化、飞线引导等方法进行元件布局。（6）布线。通过PADS Layou和PADS route组合进行交互式布线工作。（7）验证优化。验证PCB设计中的开路、短路、DFM和高速规则。（8）设计资料输出。在完成PCB设计后，利用CAM输出光绘、钢网、装配图等生产文件。（9）加工。输出光绘文件到PCB工厂进行PCB生产，输出钢网、器件坐标文件。装配图到STM工厂进行贴片焊接作业。以上为PADS常规设计流程，希望初学者都要按照这个流程来做，一定能够完好的设计出一个PCB板。
上传时间： 2022-07-06
上传用户：20125101110
