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dds_test
说明: 直接数字式频率合成器DDS设计、Verilog。
产生的信号可以是正弦波或方波、三角波、锯齿波等,自选。
采用DDS技术,将所需生成的波形写入ROM中,按照相位累加原理合成任意波形。
此方案得到的波形稳定,精度高,产生波形频率范围大,容易产生高频。
本实验在设计的模块中,包含以下功能:
(1)通过 freq 信号输入需要的频率的值;
(2)通过 wave_sel 信号选择所需的波形;
(3)通过 amp_adj 信号选择波形放大的倍数。(DDS design of direct digital frequency synthesizer, Verilog.
The generated signal can be sinusoidal or square wave, triangular wave, sawtooth wave and so on, optional.
By using DDS technology, the required waveforms are written into ROM, and arbitrary waveforms are synthesized according to the principle of phase accumulation.
The waveform obtained by this scheme is stable, accurate and easy to generate high frequency waveform.
This experiment includes the following functions in the designed module:
(1) Input the required frequency value through freq signal;
(2) Choosing the required waveform by wave_sel signal;
(3) Select the multiplier of waveform amplification by amp_adj signal.)
- 2019-01-19 16:07:50下载
- 积分:1
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购物网站商品图片图文推荐放大特效
一种基于javascript实现的购物网站商品图片图文推荐放大特效,鼠标放上后,对应的图片会变大显示,且会显示该图片对应产品品牌的LOGO、价格、已售多少件等信息,一看就很有“网购”风格,
- 2022-01-25 23:41:58下载
- 积分:1
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并行算法,矩阵相乘,MPI。
cannon.c
并行算法,矩阵相乘,MPI。
cannon.c-MPI,MUTPLAY
cannon.c
- 2022-05-21 07:31:06下载
- 积分:1
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ISD4004 51单片机驱动程序
本设计是基于单片设计的一个能实现语音存储和回放功能的系统,利用宏晶公司生产的STC90系列单片机作为主控制器,使用具有录音和放音功能的ISD4004语音芯片,能够显示32个字符的LCD1602显示器件和能对音频进行无失真的放大的TDA2822M差分放大器设计而成的。首先我们利用STC90C516RD+单片机的优越的控制性能来控制ISD4004语音芯片,通过单片机向语音芯片发送指令来完成ISD4004芯片的录音和放功能,用LCD1602来显示单片机对ISD4004的操作状态,使用TDA2822M将ISD4004芯片输出的音频进行无失真的放大的思路来进行语音存储和回放系统设计的,用Circuit Design Suite 10.0(Multisim)软件来绘制该系统的电路,用Keil uVision5软件来编写硬件程序。电路图和程序都完成后使用万用洞洞板依据电路图来焊接实物电路,实物完成后载入芯片程序直接进行实物调试,使用实物调试更容易找出问题和系统设计的缺陷,出现问题时可以通过模块化思想轻松查找到故障原因,并进行修复故障。ISD4004芯片录音时基于多电平存储技术实现的没有传统的数字录音过程中A/D转换带来的量化噪音和变色的金属音色。该系统录取的声音播放出来后和原音的音色、音调保持一致不失真。(This design is based on the single chip design of a voice storage and playback system, using STC90 series MCU produced by Hongjing Company as the main controller, using ISD4004 voice chip with recording and playback function, can display 32 characters LCD 1602 display device and can amplify audio without distortion. TDA2822M differential amplifier is designed. Firstly, we use the superior control performance of STC90C516RD + MCU to control the ISD4004 voice chip, send instructions to the voice chip through MCU to complete the recording and playback function of ISD4004 chip, use LCD1602 to display the operation status of MCU to)
- 2018-12-10 23:02:25下载
- 积分:1
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slle
说明: matlab slle的实现和相应例子,用于数据降维和类型识别,放入工作区即可使用(Matlab installation package for SLLE algorithm)
- 2021-03-19 22:39:18下载
- 积分:1
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SSI-ABZ
说明: SSI转ABZ信号FPGA程序,测试完全可用(Function of SSI convert to ABZ signal,is available)
- 2019-05-19 15:37:48下载
- 积分:1
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ip提示框特效
说明: HTML5 SVG弹性Tooltip提示框特效是一款使用SVG来制作,并通过anime.js来制作非常炫酷的弹性动画特效。(HTML5 SVG Flexible Tooltip box is a special effect that uses SVG to produce, and anime. JS to produce very cool flexible animation effects.)
- 2019-03-30 17:32:15下载
- 积分:1
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UMAT帮助文档
说明: 编写UMAT子程序的介绍,以及黄永刚晶体塑性子程序的帮助文档(Introduction to the preparation of UMAT subroutines, as well as huang yonggang crystal plasticity documentation)
- 2020-07-15 17:38:50下载
- 积分:1
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SVPWM
基于Simulink搭建的SVPWM仿真模型,可供学习(SVPWM simulation model based on Simulink, available for learning)
- 2020-06-21 21:20:02下载
- 积分:1
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YOLO
说明: 将一幅图像分成 SxS 个网格(grid cell),如果某个 object 的中心落在这个网格中,则这个网格就负责预测这个 object。(Divide an image into SxS grid cells. If the center of an object falls in the grid, the grid is responsible for predicting the object.)
- 2020-06-21 11:40:02下载
- 积分:1