This code for countor . it is design in verilog HDL.

SHA256加密过程,非常详细，内附原码，还有文档，很可用~(SHA256 encryption process, very detailed, containing the original code, as well as documents, it is available ~)

open cores 提供的i2c控制IP核 可直接在FPGA上使用。并带有相关的测试程序(endorsed by the i2c controller IP provided by the open cores on the FPGA. With the relevant test procedures)

乐曲演奏电路，能演奏歌曲，同时在数码管上显示演奏的乐曲音符的数字。-Music concert circuit, can play songs at the same time in the digital tube displays the number of notes played music.

2FSK的matlab仿真，叠加了高斯白噪声(2FSK matlab simulation, superimposed on a Gaussian white noise)

正弦信号发生器（可扫频）通过验证 正弦信号发生器-Sinusoidal signal generator (which can be swept) through the validation of sinusoidal signal generator

DE2将连接到LCD布局上，为Terasic off技术公司附上系统代码

Verilog 语言编写 PCI9054 控制器的接口电路，实现 PCI总线到本地 8 位总线的转接控制(The Verilog language writes the interface circuit of the PCI9054 controller to realize the transfer control of the PCI bus to the local 8 bit bus)

基于脉动结构的有限域乘法器，verilog代码(Based on the pulse of the structure of finite field multipliers, verilog code)

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中得到的正弦信号，通过D/A转换，通过ME5534滤波后在示波器上观察； 3、 输出波形要求： 在输入时钟频率为16KHz时，输出正弦波分辨率达到1Hz； 在输入时钟频率为4MHz时，输出正弦波分辨率达到256Hz； 4、 通过RS232C通信，实现FPGA和PC机之间串行通信，从而实现用PC机改变频率控制字，实现对输出正弦波频率的控制。-a use FLEX10-chip RAM resources, in accordance with DDS principle, design sinusoidal signal generated by the top-level functional modules and schematics; 2, the experimental board TLC7259 converters, will be a sinusoidal signal, the D/A conversion, after filtering through the ME5534 oscilloscope observation; 3, the output waveform requirements : the input clock frequency of 16KHz, sine wave output resolution of 1Hz; the input clock frequency of 4MHz, the sine wave output resolution of 256Hz; 4, RS232C communications, FPGA and PC serial communications between in order to achieve PC-frequency control characters, the realization of sine wave output frequency control.

FM收音机的解码及控制器VHDL语言实现，Xilinx提供的．别谢我．-FM radio decoder and controller VHDL, Xilinx provide. I thank other.