1、 利用FLEX10的片内RAM资源，根据DDS原理，设计产生正弦信号的各功能模块和顶层原理图； 2、 利用实验板上的TLC7259转换器，将1中得到的正弦信...

利用数字电路知识，进行二十四小时计时，并有闹钟与蜂鸣器功能-Knowledge of the use of digital circuits, the 24 hours time, and there is an alarm clock function and buzzer

moving tracking based in D5M camera tracking camera

正弦波UPS中的逆变电路 包括原理分析 框图 及原理图(Sine wave UPS inverter circuit the principle analysis block diagram and schematic)

xlinx官方的iic和spi接口的描述-IIC and xlinx official description of spi interface

用verilog编写的乒乓球游戏，内带ps2，VGA驱动，下载到spantan3开发板上即可使用（原创）-Prepared using Verilog table tennis game, with band ps2, VGA driver, download to spantan3 development board to use (original)

一些对初学者比较实用的源码，ASK，PSK，FSK调制解调(Some of the more practical source code for beginners)

该项目是用VHDL编写的，并在Nexys2板套件的4个七段显示器中显示一个测微计的秒、分和小时。时间可以在开关0中停止，在按钮0中复位。显示方式与显示方式不同最小：分段到hr:min通过切换开关1

7段数码显示译码器设计7段数码是纯组合电路，通常的小规模专用IC，如74或4000系列的器件只能作十进制BCD码译码，然而数字系统中的数据处理和运算都是二进制的，所以输出表达都是十六进制的，为了满足十六进制数的译码显示，最方便的方法就是利用译码程序在FPGA/CPLD中来实现。例子作为七段译码器，输出信号LED7S的7位分别接数码管的7个段，高位在左，低位在右。例如当LED7S输出为“1101101”时，数码管的7个段g、f、e、d、c、b、a分别接1、1、0、1、1、0、1；接有高电平的段发亮，于是数码管显示“5”。-7 digital display decoder design 7 Digital is pure combinational circuits, usually of small-scale dedicated IC, such as 74 or 4000 Series devices can only be used to decimal BCD decoder, but digital systems in the data processing and computing are binary, so the output expression are hexadecimal, and hexadecimal number in order to meet the needs of the decoding shows that the most convenient way is to use decoding process in FPGA/CPLD in to achieve. Seven-Segment decoder as an example, the output signal of the seven were LED7S access digital pipe 7 above, high in the left, low in the right. For example, when LED7S output as

this implemented multilplier in vhdl.this source code is useful for computer student and hardware engineering.-this is implemented multilplier in vhdl.this source code is useful for computer student and hardware engineering.

control stepper motor by fpga card with vhdl program