super fast debounce button on vhdl, xilinx xc

VHDL语言，设计一个在DE2平台的8个七段数码管上循环显示HELL0的程序，采用按键控制循环的速度，慢速循环时间间隔为1S，快速循环时间间隔为200ms。(VHDL language, design a platform in the DE2 8 segment digital tube display HELL0 program cycle, the speed control loop using keys, slow cycle time interval for the 1S, fast cycle time interval is 200ms.)

zedboard原理图详细，PCB板焊接方便，每个接口表明清楚。(Zedboard schematic in detail, PCB board welding is convenient, each interface that clearly.)

说明：  基于EasyFPGA030的直流电机控制电路设计和四位数字密码锁。(DC Motor Control Based on EasyFPGA030 circuit design and four-digit combination lock.)

verilog lcd2864 适合初学者(verilog lcd2864 )

主要完成数字电视前端信号处理和缓冲作用的verilog源代码，可以直接使用 -the major digital TV front-end signal processing and buffer the Verilog source code can be used directly

本程序包含：EEPROM的功能模型(eeprom.v)、读/写EEPROM的verilog HDL 行为模块（eeprom_wr.v）、信号产生模块（signal.v）和顶层模块(top.v) ，这样可以有一个完整的EEPROM的控制模块和测试文件，本文件通过测试。(This procedure includes: EEPROM of the functional model (eeprom.v), read/write EEPROM acts of verilog HDL modules (eeprom_wr.v), signal generator module (signal.v) and top-level module (top.v), this can have a EEPROM complete control module and test document, this document is to pass the test.)

注意：是verilog语言写的 一bit的全加器，实现4位数的串行加法器，一个时钟能完成一次一bit的全加(Note: It is verilog language to write a bit full adder, to achieve four-digit serial adder, a clock can be completed once a bit full adder)

这个是vhdl中很常见的jk filpflop的文件只用于很小数位的变化 其中的jk文件是up down运算都符合的(This is a very common vhdl jk filpflop file is only used for very small changes in a digital file which jk is up down operations are met)

说明：  misp顶层文件，verilog实现misp架构，并且支持modelsim仿真(Verilog implements MISP architecture and supports Modelsim simulation)

使用Altera公司的FPGA进行VHDL开发。使用quartus2 9.0软件在EP1C3T144C8开发板上实现对4x4键盘的输入控制，并显示在一个8段式数码管上。(The use of Altera' s FPGA-VHDL development. Use quartus2 9.0 software EP1C3T144C8 the development board to realize 4x4 keyboard input control, and displayed in an eight-stage digital pipe.)