In the Altera chip 2C35F672 platform FFT procedures DSPBuilder5.0, generated Ver...

书名：LDPC原理与应用。是国内第一本介绍用LDPC编、译码基本原理及应用技术的一本书。对用 vhdl 或verilog实现硬件编程LDPC的人开发无线通信是很好的资料(Title: LDPC Principles and Applications. Is the first book describes using LDPC Encoding and Decoding the basic principles and application of technology, a book. Right to use vhdl or verilog hardware programming LDPC people to achieve development of wireless communications is a very good information)

DE2将连接到LCD布局上，为Terasic off技术公司附上系统代码

能够成功的实现走马灯功能，使LED循环亮灭(To succeed the implementation of the version function, make the LED circular light out)

说明：  希望对VHDL的学习大家有帮助，望大家指出错误，浮想交流！(We want to learn VHDL help, hope you point out an error, daydreams exchange!)

VHDL is defined by IEEE Standard 1076, IEEE Standard VHDL Language Reference Manual (the VHDL LRM). The original standard was approved in 1987. IEEE procedures require that standards be periodically reviewed and either reaffirmed or revised. The VHDL standard was revised in 1993, 2000, and 2002. In each revision, new language features were added and some existing features enhanced. The aim in each revision was to improve the language as a tool for design and verification of digital systems. Since the 2002 revision, there have two parallel efforts to further develop the language. The first was the VHDL Procedural Interface (VHPI) Task Force, a subcommittee of the IEEE P1076 Working Group. The VHPI Task Force prepared an interim amendment to the standard, formally approved by IEEE in March 2007. The amendment is titled IEEE 1076c, Standard VHDL Language Reference Manual―Amendment 1: Procedural Language Application Interface.

说明：  学习使用quartus modelsim(learn to uee quartus modelsim)

高精度直流信号源，DAC1220，20位分辨率，双极性输出(High-precision DC source, DAC1220,20 bit resolution, bipolar output)

Implement the 7 segment diplay on spartan 3

VHDL 波形防止抖动程序,学习试验材料(VHDL prevent jitter waveform procedures, the pilot study materials)

说明：  脉冲宽度调制，VHDL代码编写，包括QUARTUSII和MODELSIM工程以及testbench(Pulse width modulation, VHDL coding, including QUARTUSII and ModelSim engineering and Testbench)