以上是VHDL硬件描述语言写的一个简单锝路流水灯程序,希望对刚接触VHDL的朋友有一定帮助...

实现4种常见波形正弦、三角、锯齿、方波（A、B）的频率、幅度可控输出（方波 --A的占空比也是可控的），可以存储任意波形特征数据并能重现该波形，还可完成 --各种波形的线形叠加输出。 (Achieve the four kinds of common sine wave, triangle, sawtooth, square wave (A, B) the frequency and amplitude controlled output (square wave- A duty cycle is controlled), can store arbitrary waveform feature data and can to reproduce the waveform, it can perform- all kinds of linear superposition of the output waveform.)

relative cpu design implementation

基于单片机的DDS信号发生器，具有DDS思想的单片机编程。。。(Sunplus based DDS signal generator with DDS thinking microcontrollers. . .)

开关电源变换器（Switching Power Supply）为当前电子产品中应用非常广泛的功率器件，在日常生活中无处不在

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

one of example about hardware design language

模拟示波器的现实程序，有x，y和光标。采用AD5440输出，现实效果很好。（示波器x-y方式）(Analog oscilloscope reality program, there are x, y and cursor. Using AD5440 output, real good results. (Xy oscilloscope mode))

在ISE下，FPGA产生线性调频信号，并且产生信号的参数可调(In ISE, the FPGA generates a linear frequency modulation signal, and the parameters of the signal are adjustable.)

实用的程序代码，希望对大家有用，已经调试通过-Practical program code, in the hope that useful to everybody, has debugging through

4位电子密码锁，带键盘扫描、按键防抖动、LCD驱动编译码-four electronic password lock with a keyboard scan button shake, LCD driver encryption