分频程序

说明：  基于EasyFPGA030的四位数字密码锁。(Based on the four-digit lock EasyFPGA030.)

设计一个可编程间隔定时器，完成8253的功能，实现以下几点要求： 1、 含有3个独立的16位计数器，能够进行3个16位的独立计数。 2、 每一种计数器具有六种工作模式。 3、 能进行二进制/十进制减法计数。 4、 可作定时器或计数器。 -The design of a programmable interval timer, 8253 to complete the function, realize the following requirements: 1, contains three independent 16-bit counter, capable of three independent 16-bit count. 2, each with six counter mode. 3, can be binary/decimal subtraction count. 4, can be used for the timer or counter.

说明：  通过MATLAB产生单脉冲信号的数据，存储下来作为verilog代码实现的DDS的数据源，用于验证DA数据的ddio的调试是否有问题。(The data of monopulse signal generated by MATLAB is stored as the data source of DDS implemented by Verilog code to verify whether the ddio debugging of DA data is problematic.)

使用verilog作为CPU设计语言实现单数据通路五级流水线的CPU。具有32个通用寄存器、一个程序计数器PC、一个标志寄存器FLAG，一个堆栈寄存器STACK。存储器寻址粒度为字节。数据存储以32位字对准。采用32位定长指令格式，采用Load/Store结构，ALU指令采用三地址格式。支持有符号和无符号整数加、减、乘、除运算，并支持浮点数加、减、乘、除四种运算，支持与、或、异或、非4种逻辑运算，支持逻辑左移、逻辑右移、算术右移、循环右移4种移位运算，支持Load/Store操作，支持地址/立即数加载操作，支持无条件转移和为0转移、非0转移、无符号>转移、无符号<转移、有符号>转移、有符号<转移等条件转移。()

介绍分频器的好资料。不光有奇数分频、偶数分频，还有小数分频。相信把这个资料理解透了后以后分频器的设计就不是问题了。(Introduction divider good information. Not only have an odd frequency, even frequency, there are fractional. I believe understanding this information through the post after the Divider is not a problem.)

2位并行加法器初学者必看初步了解FPGA-two count

CPFSK Demodulation Techniques

该程序实现的N位全减器，首先实现一位的减法器，之后实现N位全减器。-Program of the N-bit-wide reduction, the first realization of a subtraction for, after all N-reduction devices.

1024点FFT快速傅立叶变换,(vhdl代码)-1024-point FFT vhdl

this a fpga sparttan 3e based project in which i have made a game based on vga interface . this file is the main file included in the project.-this is a fpga sparttan 3e based project in which i have made a game based on vga interface . this file is the main file included in the project.