ALU指令

使用VHDL键盘扫描程序，可以稍微修改一下使用

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：  自适应滤波器算法LMS ，的FPGA实现，采用VERILOG实现。(LMS, an adaptive filter algorithm, is implemented on FPGA and VERILOG.)

本人编写的定点除法器,开发软件为XILINX的ISE6.2,通过PAR仿真.-I prepared for the sentinel division, the development of software for the ISE6.2 Xilinx, PAR through simulation.

包括Cyclone II EP2C20 原理图.CycloneII开发板原理图fpga.EP1C3T144 FPGA develop board manual.EP1C6Q240C6开发板原理图.EP2C8开发板原理图.EPM1270F256C5 MAX_II_board_schematics.SF-EP1V2+FPGA开发板原理图.XC3S400红色飓风开发板原理图.红色飓风II代开发板原理图2.(Including the Cyclone II EP2C20 schematic . CycloneII development board schematics fpga.EP1C3T144FPGA develop board manual.EP1C6Q240C6 development board schematic . EP2C8development board schematics . EPM1270F256C5MAX_II_board_schematics.SF-EP1V2+FPGA development board schematic . XC3S400red hurricane development board schematics. Red hurricane II development board schematic diagram2)

利用matlab提供的firhalfban函数设计阶数为16、通阻带容限为0.0001的半带滤波器。仿真测试滤波前后的信号时域图，回执滤波器的频率响应特性图(Provided firhalfban function using matlab design order of 16, through the 0.0001 stopband wool half-band filter. Simulation test filtered time domain signal before and after, receipt filter frequency response characteristic diagram)

在ise开发环境下，建立顶层模块和子模块的层次结构，其实现的功能是一个可复位课暂停开始继续的建议秒表(In ise development environment, establish a hierarchy of top-level modules and sub-modules, and its function is to achieve a resettable class resumes proposal to suspend the stopwatch)

An Alarm Project Writen in VHDL for FPGA Devices

Farrow 滤波器设计经典文章，作者是：FM.Gardner，farrow滤波器设计的始祖，经典值得推荐！（两篇文章）(Farrow filter design classic article, the author is: FM.Gardner, farrow filter design ancestor, classic worth recommending! (Two articles))

一个关于VERILOG与VHDL混合编程，混合验证的资料(A hybrid programming on VERILOG and VHDL, mixed verification data)