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Description: The VGA example generates a 320x240 diffusion-limited-aggregation (DLA) on Altera DE2 board. A DLA is a clump formed by sticky particles adhering to an existing structure. In this design, we start with one pixel at the center of the screen and allow a random walker to bounce around the screen until it hits the pixel at the center. It then sticks and a new walker is started randomly at one of the 4 corners of the screen. The random number generators for x and y steps are XOR feedback shift registers (see also Hamblen, Appendix A). The VGA driver, PLL, and reset controller from the DE2 CDROM are necessary to compile this example. Note that you must push KEY0 to start the state machine. -The VGA example generates a 320x240 diffusion-limited-aggregation (DLA) on Altera DE2 board. A DLA is a clump formed by sticky particles adhering to an existing structure. In this design, we start with one pixel at the center of the screen and allow a random walker to bounce around the screen until it hits the pixel at the center. It then sticks and a new walker is started randomly at one of the 4 corners of the screen. The random number generators for x and y steps are XOR feedback shift registers (see also Hamblen, Appendix A). The VGA driver, PLL, and reset controller from the DE2 CDROM are necessary to compile this example. Note that you must push KEY0 to start the state machine.
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Size: 1275904 |
Author: Donghua Gu |
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Description: Altera Quartus to Pll Source
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Size: 387072 |
Author: Seo Dong hyeok |
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Description: Altera公司的FPGA器件内带PLL的详细中文使用手册-Altera' s FPGA device PLL with a detailed user manual in Chinese
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Size: 553984 |
Author: chx |
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Description: fpga的pll锁相设计，altera器件EP1s25的选用、设计-phase-locked pll of fpga design, altera devices EP1s25 selection, design
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Size: 3072 |
Author: dengxining |
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Description: fpga的pll锁相设计，altera器件EP1s25的选用、设计-phase-locked pll of fpga design, altera devices EP1s25 selection, design
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Size: 3072 |
Author: dengxining |
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Description: verilog 三分频 分频器是FPGA设计中使用频率非常高的基本设计之一，尽管在目前大部分设计中，广泛使用芯片厂家集成的锁相环资源，如altera 的PLL，Xilinx的DLL.来进行时钟的分频，倍频以及相移。-verilog-third of the frequency divider is a FPGA design, very high frequency of use, one of the basic design, although most of the designs in the current widespread use of factory-integrated PLL chip resources, such as altera of the PLL, Xilinx' s DLL. to for the sub-clock frequency multiplier and phase shift.
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Size: 1024 |
Author: 杨化冰 |
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Description: LPM 是参数可设置模块库Library of Parameterized Modules 的英语缩写，Altera 提供的
可参数化宏功能模块和LPM 函数均基于Altera 器件的结构做了优化设计。在许多实用情况
中，必须使用宏功能模块才可以使用一些Altera 特定器件的硬件功能。例如各类片上存储
器、DSP 模块、LVDS 驱动器、嵌入式PLL 以及SERDES 和DDIO 电路模块等等。这些可
以以图形或硬件描述语言模块形式方便调用的宏功能块，使得基于EDA 技术的电子设计的
效率和可靠性有了很大的提高。设计者可以根据实际电路的设计需要，选择LPM 库中的适
当模块，并为其设定适当的参数，就能满足自己的设计需要，从而在自己的项目中十分方
便地调用优秀的电子工程技术人员的硬件设计成果。
LPM 功能模块内容丰富，每一模块的功能、参数含义、使用方法、硬件描述语言模块
参数设置及调用方法都可以在QuartusⅡ中的Help 中查阅到，方法是选择“Help”菜单中
的“Megafunctions/LPM”命令。-LPM
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Size: 1526784 |
Author: lidandan |
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Description: Cyclone™ FPGA具有锁相环（PLL）和全局时钟网络，提供完整的时钟管理方案。Cyclone PLL具有时钟倍频和分频、相位偏移、可编程占空比和外部时钟输出，进行系统级的时钟管理和偏移控制。Altera® Quartus® II软件无需任何外部器件，就可以启用Cyclone PLL和相关功能。本文将介绍如何设计和使用Cyclone PLL功能。
PLL常用于同步内部器件时钟和外部时钟，使内部工作的时钟频率比外部时钟更高，时钟延迟和时钟偏移最小，减小或调整时钟到输出（TCO）和建立（TSU）时间。
-Cyclone ™ FPGA with a phase-locked loop (PLL) and the global clock network and provide a complete clock management solution. Cyclone PLL with the clock multiplier and divider, phase offset, programmable duty cycle and the external clock output for system-level clock management and offset control. Altera ® Quartus ® II software does not require any external devices, you can enable the Cyclone PLL and related functions. This article describes how to design and use the Cyclone PLL features. PLL clock devices commonly used in the synchronization of internal and external clock, so that the inner workings of the clock frequency higher than the external clock, clock delay and clock skew minimum, reduce or adjust the clock to the output (TCO) and the establishment of (TSU) time.
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Size: 553984 |
Author: 裴雷 |
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