useful VHDL document for programmer

用汇编语言设计的频率计，注释较详细，适于初学者学习使用(Assembly language design frequency meter, the comment in more detail, suitable for beginners to learn to use)

利用FPGA实现SDRAM的读写操作，通过硬件测试。(FPGA implementation using SDRAM to read and write operation, hardware testing.)

采用Xilinx公司的Spartan6 FPGA设计PCI Express的详细参考资料(Xilinx' s PCI Express, Spartan6 FPGA design, detailed reference information)

adc0809用FPGA控制的采样非常好用的实例 自己看书后终结的-ADC0809

本文分析比较了实现开方运算的牛顿一莱福森算法、逐次逼近算法、非冗余开方算法种算法,并给出了基于的开方器的实现方法(Root operation FPGA-based implementation.pdf)

用于视频运动图像编码的HUFFMAN编码，可广泛运用于MPEG-Moving Picture for video coding Huffman coding, can be widely applied to MPEG

Verilog分频程序原理讲解及代码.偶数倍分频奇数倍分频的原理和方法(Verilog divide the program explain the principle and code an even multiple of odd multiple of the principle of divide and divide)

用32位NiosII处理器实现RS232通信，可以给初学者一个借鉴。-NiosII with 32-bit processors to achieve RS232 communication, can give a reference for beginners.

verilog ad9777 ad芯片的配置程序，SPI接口协议 16bit DA(Verilog ad9777 AD chip configuration program, SPI interface protocols for 16 bit DA)

verilog HDL经典的入门书籍，内容很详细，讲了许多实例，适合硬件描述语言初学者。(verilog HDL classic introductory book, the content is very detailed, spoke many instances, suitable hardware description language for beginners.)