基于NiosⅡ的2 de2_tvproject

基4FFT原理及MATLAB实现，基本原理，编程思想等(base——4 FFT principle and MATLAB implementation, the basic principles of programming ideas, etc.)

内容太短。注意请： 代码没有很好的描述将被删除，你不会得到任何点。请描述一下更好地获得更多积分。

静态RAM是由MOS管组成的触发器电路，每个触发器可以存放1位信息。只要不掉电，所储存的信息就不会丢失。因此，静态RAM工作稳定，不要外加刷新新电路，使用方便。但一般SRAM的每一个触发器是由6个晶体管组成，SRAM芯片的集成度不会太高，目前较常用的有6116（2K×8位），6264（8K×8位）和62256（32K×8位）。6264RAM有8192个存储单元，每个单元为8位字长。-Static RAM is a tube composed of MOS flip-flop circuit, each flip-flop can store one message. Long as it does not brown-out, the stored information will not be lost. Therefore, the static stability in the work RAM, do not refresh plus the new circuit and easy to use. But generally each SRAM trigger is composed of six transistors, SRAM chip integration will not be too high, there are currently more commonly used 6116 (2K × 8 bit), 6264 (8K × 8 bit) and 62256 (32K × 8 bits). 6264RAM have 8192 storage units, each for 8-bit word length.

FPGA开发，Verilog的经典教程，在嵌入式培训中的电子书籍。-FPGA development, Verilog classic Guide, in the embedded training e-books.

OPSK调制解调。代码思路很清晰，也很干净(Modulation demodulation OPSK. The code ideas very clear, and very clean)

有关FPGA芯片的管脚的封装的一些资料。-Pin on the FPGA chip packaging some of the information.

四进制计数器模块，使用VHDL语言编写，在ISE8.1中经过测试的模型-quaternary counter module, the use of VHDL language, in which ISE8.1 tested model

Design HDL code for a circuit that calculates the Hamming distance of two 8-bit inputs.

Ship navigation project

这个并串转换代码是依靠同步状态机来实现其控制的。其实并串转换在实际的电路中使用还是比较多的，尤其在通信线路方面的复用和分解方面，原理上就是一个串并转换和并串转换的过程。举个简单的例子，计算机串口发送数据的过程，如果满足发送条件了，其实就是一个并串转换的过程了。好了，废话不说，看代码就是。 -And the string conversion of the code is relying on the synchronization state machine to achieve its control. In fact, string conversion circuit in the actual use of, or more, particularly in the area of communication lines and the decomposition of reuse, the principle is a string and the conversion and the conversion process and string. Here is a simple example, the computer serial port of the process of sending data, if sent to meet the conditions, but in fact is a process of conversion and a string. Well, do not talk nonsense, look at the code is.