图书馆的IEEE

51数字钟带各种扩展年，月，日等并且可预置。用汇编语言写的(51 digital clock with extended assembly language)

vhdl写的ds18b20程序，相互交流-vhdl written ds18b20 procedures, mutual exchange

本设计是基于EP4CE15F17C8N和12864液晶的频率计程序(The design is based EP4CE15F17C8N and 12864 LCD frequency meter program)

ModelSim的波形比较的功能可以将当前仿真与一个参考数据（WLF文件）进行比较，比较的结果可以在波形窗口或者列表窗口中查看，也可以将比较的结果生成一个文本文件-ModelSim waveform can be compared to the current functional simulation with a reference (WLF paper ), the results can be compared in the waveform window or window List View, it will also compare the results generate a text file

说明：  八通道ad采集，用于和fpga的联调测试，需要注意ADS1278的模式类型(Eight channel AD acquisition)

this project is based on half adder ,full adder,half subtractor and full subtractor using vhdl.this is the 100 correct code,reference is taken from book digital electrionics written by anand kumar.please use quatrus to access this code.this code can be used for the final year project for engineering. Here dataflow techniques and behavioural techniques are used. - this project is based on half adder ,full adder,half subtractor and full subtractor using vhdl.this is the 100 correct code,reference is taken from book digital electrionics written by anand kumar.please use quatrus to access this code.this code can be used for the final year project for engineering. Here dataflow techniques and behavioural techniques are used.

说明：  实现了QPSK的调制，使用了ise自带的dds的IP核(QPSK is modulated and the IP core of DDS is used in ise.)

用Verilog编写的基于FPGA的按键边缘检测技术，通过此模块可以很好的消除在按键过程中因抖动或误按造成的 麻烦，同时，在边缘检测技术中使用了约翰逊计数器的思想，是的代码简介，思路清晰。源码中含有大量的注释，有助于读者更好地了解编码思想。

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.

国外大学上课用PPT。关于乘法器架构，实现，优化，有booth算法的具体实例。(Foreign university classes PPT. About multipliers architecture, implementation, optimization, there is a specific instance of the booth algorithm.)