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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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Divider-vhdl
This is a divider, which is depicted as well.
It is a programming language Vhdl.
- 2013-09-29 18:28:11下载
- 积分：1
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100例VHDL语言解释，北京理工大学毕业…
VHDL语言100例详解，北京理工大学ASIC研究生出版，这里是51~94个examples-VHDL language of 100 cases explain, Beijing Institute of Technology, Graduate ASIC publication, here is the 51 ~ 94 examples
- 2022-04-16 00:12:16下载
- 积分：1
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from across the Xilinx website, learning some FPGA dynamic reconfigurable good e...
从Xilinx网站上下的，学习FPGA部分动态重配置很好的例子。-from across the Xilinx website, learning some FPGA dynamic reconfigurable good example.
- 2023-03-28 16:10:04下载
- 积分：1
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Baseband_line_code
基于VHDL语言的基带线路码产生电路设计（毕业论文），内涵完整的源代码(Based on VHDL language baseband line code generation circuit design (Thesis), meaning the complete source code)
- 2010-07-03 22:38:09下载
- 积分：1
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FPGAshiyan(4)
FPGA入门系列实验教程——实验四.LED跑马灯(Getting Started with FPGA tutorial series of experiments- Experiment IV. LED Marquee)
- 2010-11-05 17:44:05下载
- 积分：1
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code
PLL中的TDC和DCO代码,是TI公司团队的，相当经典的代码，非常不错(the code of TDC and DCO)
- 2020-12-10 10:29:19下载
- 积分：1
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median
说明： 用verilog编辑的中值滤波器！语言旁表有注释方便理解！(Using Verilog editor median filter! Language beside the table annotated to facilitate understanding!)
- 2008-11-03 09:21:18下载
- 积分：1
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减1计数器 一、设计要求 用Verilog HDL语言设计一个计数器。 要求计数器具有异步置位/复位功能，可以进行自增和自减计数，其计数周期为2^N（N为二进制...
减1计数器 一、设计要求 用Verilog HDL语言设计一个计数器。 要求计数器具有异步置位/复位功能，可以进行自增和自减计数，其计数周期为2^N（N为二进制位数）。 二、设计原理 输入/输出说明： d：异步置数数据输入； q：当前计数器数据输出； clock：时钟脉冲； count_en：计数器计数使能控制（1：计数/0：停止计数）； updown：计数器进行自加/自减运算控制（1：自加/0：自减）； load_d-a counter a reduction, design requirements using Verilog HDL design of a counter. Asynchronous requests with counter-home/reset functions can be carried out by self and self-count reduction, cycle counting of 2 ^ N (N for binary digit). Second, the principle of design input/output Description : d : asynchronous home several data input; Q : The current counter data output; Clock : clock pulse; Count_en : Counting enable control (1 : Counting/0 : Stop counting); Updown : dollars several self-Canada/reduction Operational control (1 : Since the plus/0 : Since decrease); load_d
- 2022-01-28 03:17:59下载
- 积分：1
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QPSK
用VHDL语言实现QPSK调制功能和解调功能,(Using VHDL language features QPSK modulation and demodulation functions,)
- 2021-04-26 15:28:46下载
- 积分：1
