arinc429转232接口协议

说明：  浙江大学计算机组成实验12指令扩展多周期CPU实现(The implementation of 12 instruction extended multi cycle CPU in Computer Composition Experiment of Zhejiang University)

用VHDL编写的huffman编码的源程序(With the VHDL source code written in huffman coding)

在quartus下搭建的数字锁相环，能实现频率自动跟踪。(The digital phase-locked loop built under quartus can realize automatic frequency tracking.)

32位全加器，另有一个采用流水线的版本，是基于verilog语言的，很实用，希望对大家有所帮助(32-bit full adder, while a pipelined version，code is based on verilog language, it is practical, we hope to help)

说明：  设计一简易数字频率计，其基本要求是： 1)测量频率范围0～999999Hz； 2)最大读数999999HZ,闸门信号的采样时间为1s；. 3)被测信号可以是正弦波、三角波和方波； 4)显示方式为6位十进制数显示； 5）具有超过量程报警功能。 5)输入信号最大幅值可扩展。 6）测量误差小于+-0.1%。 7)完成全部设计后，可使用EWB进行仿真，检测试验设计电路的正确性。(The basic requirements of designing a simple digital frequency meter are: 1) The measuring frequency range is 0-999999 Hz. 2) The maximum reading is 999999HZ, and the sampling time of gate signal is 1 s. 3) The measured signal can be sine wave, triangle wave and square wave. 4) The display mode is 6-bit decimal number display. 5) It has alarm function beyond range. 5) The maximum amplitude of input signal can be expanded. 6) The measurement error is less than +0.1%. 7) After completing all the design, EWB can be used to simulate and test the correctness of the circuit.)

说明：  quartus II中文用户教程(英文版的完全翻译）,和一切爱好可编程器件的同仁共勉之(Quartus II Chinese user guide (English version of the full translation) love and all programmable devices colleagues share Zhi)

一个精确时钟的v-log程序，只用一个全局时钟，增加了精确度(An accurate clock in the v-log program, only one global clock, increased accuracy)

此代码由 Altera 演示，并已对其进行修改(版权所有 ︰ Altera)

说明：  30 bus for atp design

these are verilg prgms