cpu微命令vhdl源代码

说明：  等精度测频法，有需要的可以下载看看哟，word中包含的代码(Equal Precision Frequency Measurement Method)

四位密码锁，移位显示，可以设置和更改密码。-4 lock, shift, it can be set up and change your password.

数字频率计 数字频率计-Digital frequency meter digital frequency meter

本例为TLC7524接口电路VHDL原程序-Example for the TLC7524 interface circuit VHDL original procedure

用vhdl设计实现的多功能电子钟，可有日历，闹钟，修改等多种功能-With VHDL Design and Implementation of the multi-functional electronic bell, can have a calendar, alarm clock, to amend a variety of functions such as

FFT with fix point 2*N

Reed-solomon decoder, encoder design note

说明：  编码方式为213的Viterbi卷积码编码器和译码器的FPGA的实现，包含整个QuartusＩＩ的工程文件，解码方式为寄存器交换法(Encoding for the 213 convolutional code encoder and Viterbi decoder FPGA realization of the project file that contains the entire QuartusII, decoding method for the register exchange)

  基于FPGA(Field-Programmable Gate Array)的OFDM(Orthogonal Frequency Division Multiplexing)信号传输系统VHDL源码 use IEEE.std_logic_unsigned.all; package outconverter is constant stage : natural := 3; constant FFTDELAY:integer:=13+2*STAGE; constant FACTORDELAY:integer:=6; constant OUTDELAY:integer:=9; function counter2addr( counter : std_logic_vector; mask1:std_logic_vector; mask2:std_logic_vector ) return std_logic_vector; function outcounter2addr(counter : std_logic_vector) return std_logic_vector; end outconverter; package body outconverter is function counter2addr( counter : std_logic_vector; mask1:std_logic_vector; mask2:std_logic_vector ) return std_logic_vector is variable result :std_logic_vector(counter"range); begin for n in mask1"range loop if mask1(n)="1" then result( 2*n+1 downto 2*n ):=counter( 1 downto 0 ); elsif mask2(n)="1" and n/=STAGE-1

说明：  serdes中的8B/10B编码 verilog实现(Implementation of 8B / 10B coding Verilog)