这是一个测试键盘的代码

用VHDL 语言驱动DM128*64LCD程序-Using VHDL language driver DM128* 64LCD procedures

基于FPGA设计的串口发送及接收程序，波特率可调(FPGA - based serial port sending and receiving)

最近交互式电源技术，软交换、同步整流、频率固定(Alternating expressions Power technology recently、Softswitch, synchronous rectification, fixed frequency)

在Quartus中，利用FPGA例化的存储器实现程序的BOOTLOADER的搬移(In Quartus, the use of FPGA case of memory to achieve the program' s move BOOTLOADER)

三相PWM整流，实现功率双向流动,可保持直流侧电压稳定(three-phase PWM rectifier, power can bidirectional flow ，can maintain the stable DC voltage)

控制电话信令 完成忙碌 等待 回铃音振铃等(Signaling complete control over telephone ring so busy waiting ringback tone)

计时范围为59.99秒；有计时开始和停止计时控制，复位控制可以对所有计时进行异步复位；计时结果由四位七段数码管显示。

如果需要用verilog设计一项比较简单的功能，那么这个浅显易懂的程序能让你很快明白点阵的设计方法，尤其是对那些初学者(If you need to use a relatively simple verilog design features, then this easy to understand design of the program allows you to quickly understand the lattice method, especially for those who are beginners)

计算燃料电池膜的传质分析，包括各层之间的氧气、二氧化碳以及水的传质。(Calculating cell mass transfer)

its a Fifo BASED design i also Interface DAC2904