wallace multiplier trees for 4:2

MPEG-2TS 流嵌入控制数据的设计，设计的要求是用控制数据替换MPEG-2 TS 流中的空帧-MPEG-2TS control data stream embedded in the design, the design requirements is to control data to replace MPEG-2 TS stream of the air frame

ATSHA204_S加密芯片资料，学习使用该芯片必读资料(ATSHA204_S encryption chip data, required reading for learning to use the chip)

一个以太网卡的硬件描述，可以参考进行设计网卡芯片。-an Ethernet card hardware description, reference card chip design.

说明：  一种用verilog语言实现的霍夫曼压缩编码算法(Huffman compression implemented by Verilog)

Wishbone dma ip core

基于FPGA设计的经典打砖块小游戏。游戏简单易玩。(FPGA design based on the classic Arkanoid game. Game easy to play.)

说明：  多摩川绝对值编码器的NRG协议源代码,我们公司用的，我修改的解码程序(Tamagawa NRG absolute encoder protocol source code, used by our company, I modified decoding process)

实现一个简单的电子钟，其时间（时，分，秒）可以设置和更改，设置和更改的同时不会影响其他显示的变化（相互独立）。-achieve a simple electronic bell, the time (hours, minutes and seconds) can set and change, Settings and change will not affect the other shows the change (independent).

模块化分散聚集 DMA 是连续或非连续的转移。如正常 DMA 或散点图聚集 DMA 配置的输入或输出的部分。

用VHDL实现频率计，可测量输入脉冲的频率，并进行简单校正(Realize the frequency of use of VHDL in terms of measurable input pulse frequency, and a simple correction)