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eda
EDA 正弦信号发生器：正弦信号发生器的结构有四部分组成，如图1所示。20MHZ经锁相环PLL20输出一路倍频的32MHZ片内时钟,16位计数器或分频器CNT6，6位计数器或地址发生器CN6，正弦波数据存储器data_rom。另外还需D/A0832（图中未画出）将数字信号转化为模拟信号。此设计中利用锁相环PLL20输入频率为20MHZ的时钟，输出一路分频的频率为32MHZ的片内时钟，与直接来自外部的时钟相比，这种片内时钟可以减少时钟延时和时钟变形，以减少片外干扰 还可以改善时钟的建立时间和保持时间，是系统稳定工作的保证。CNT6用来将32MHZ进行8分频得到4096HZ的频率提供给CN6与data_rom时钟信号。由CLK端输入20MHZ的时钟信号，在DOUT端就可输出稳定的正弦信号。(Sine signal generator has the structure of four parts, as shown in figure 1 below. The 20 MHZ phase lock loop PLL20 output all the way of frequency doubled within 32 MHZ slice clock, 16 counter or prescaler CNT6, six counter or address generator CN6, sine data storage data_rom. In addition to D/A0832 (shown in not draw) will digital signal into analog signals. This design using the phase lock loop PLL20 input frequency for 20 MHZ clock, the output of the frequency of all points frequency of 32 pieces (MHZ clock, and comes directly from the external clock, compared to this piece of clock can reduce the clock in delay and clock deformation, to reduce the interference of Can also improve the establishment of the clock time and keep time, is the system stability of assurance. CNT6 used to will and to 8 MHZ get 4096 HZ dividing the frequency to provide CN6 and data_rom clock signal. The input by CLK 20 MHZ clock signal, in DOUT end can output stable sine signals.
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- 2021-03-07 15:49:29下载
- 积分：1
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I121-v1.10
Implementation of Serial Infrared decoder for low-speed IrDA communications.
- 2013-06-14 05:38:14下载
- 积分：1
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agc
数字自动增益控制 AGC （automatic gain control） Verilog(automatic gain control Verilog)
- 2021-03-11 19:29:25下载
- 积分：1
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FPGA
FPGA设计中的时序分析及异步设计注意事项
(FPGA design timing analysis and design considerations for asynchronous)
- 2011-08-15 22:02:50下载
- 积分：1
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：现场可编程门阵列（FPGA）在双FPGA芯片的特点
:针对现场可编程门阵列(FPGA)芯片的特点,研究FPGA中双向端口I/O的设计,同时给
出仿真初始化双向端口I/O的方法。采用这种双向端口的设计方法,选用Xilinx的Spartan2E芯片
设计一个多通道图像信号处理系统。-: For field programmable gate array (FPGA) chip features of FPGA in the bi-directional port I/O design, the simulation is initialized at the same time two-way port I/O method. Using this design method of two-way ports, optional Spartan2E the Xilinx chip to design a multi-channel image signal processing system.
- 2022-01-21 19:15:19下载
- 积分：1
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FPGA realization of DDS with the schematic diagram, structural clarity, the use...
用FPGA实现DDS的原理图，结构清晰，采用总线方式与外部单片机通信-FPGA realization of DDS with the schematic diagram, structural clarity, the use of bus-way communication with the outside Singlechip
- 2022-04-16 10:26:17下载
- 积分：1
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SystemOfTaxiFeeBasedOnVerilogHDL
摘 要：以上海地区的出租车计费器为例，利用Verilog HDL语言设计了出租车计费器，使其具有时间
显示、计费以及模拟出租车启动、停止、复位等功能，并设置了动态扫描电路显示车费和对应时间，显示
了硬件描述语言Verilog—HDL设计数字逻辑电路的优越性。源程序经MAX+PLUS Ⅱ软件调试、优
化，下载到EPF1OK10TC144—3芯片中，可应用于实际的出租车收费系统。
关键词：Verilog HDL；电子自动化设计；硬件描述语言；MAX+PLUSⅡ(Abstract: Shanghai taxi meter as an example, the use of Verilog HDL language designed taxi meter so that it will have the time display, billing, as well as analog taxis to start, stop, reset and other functions, and set up a dynamic scanning circuit shows that the fare and the corresponding time, shows the hardware description language Verilog-HDL design of the superiority of digital logic circuits. Source by MAX+ PLUS Ⅱ software debugging, optimization, downloaded to EPF1OK10TC144-3 chip, can be applied to the actual taxi fare collection system. Keywords: Verilog HDL electronic design automation hardware description language MAX+ PLUS Ⅱ)
- 2007-09-11 10:52:52下载
- 积分：1
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VHDLgoldbook
VHDL黄金参考手册，能让你更好的学习了解VHDL语言(VHDL gold reference manual, can make you a better learn VHDL language)
- 2013-12-05 16:06:19下载
- 积分：1
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一个交通灯的vhdl语言实现 用 ＶＣ的 １．在指定的文件夹内查找某个文件 ２．获取系统文件夹的路径， 要求显示windows system tem...
一个交通灯的vhdl语言实现 用 ＶＣ的 １．在指定的文件夹内查找某个文件 ２．获取系统文件夹的路径， 要求显示windows system temp 当前目录的路径 Ｃ语言 跳马问题：在５＊５的棋盘上，以编号为１的点出发，按日只跳马，要求不重复地跳所有位置，求出符合规则所有跳马的方案 １ ６ １５ １０ ２１ １４ ９ ２０ ５ １６ １９ ２ ７ ２２ １１ ８ １３ ２４ １７ ４ ２５ １８ ３ １２ ２３ -a traffic light VHDL language of a VC. The designated folders to search within a document 2. Access to the system folder path, requested that the current windows system temp directory path C language vault : 5* 5 in the chessboard to the No. 1 starting point, the only daily vault and asked not to repeat all locations to jump to get in line with all rules of the program vault 1 6 15 10 21 14 9 20 5 16 19 2 7 22 11 8 13 24 17 4 25 18 3 12 23
- 2022-02-14 11:48:06下载
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fsk调制与解调，此程序经过验证，可以运用，通讯方面的同学可以用...
fsk调制与解调，此程序经过验证，可以运用，通讯方面的同学可以用-FSK modulation and demodulation, this procedure has been verified and can use communications students can use
- 2022-01-26 06:28:59下载
- 积分：1
