用VHDL写的一个显示程序，希望能帮上大家的忙，嘿嘿。

vhdl

说明：  一个8位RiSC单片机的VHDL代码， 具有很好的参考价值。(an eight RiSC SCM VHDL code, is a good reference value.)

通信控制中常用的脉冲宽度检测程序，VHDL模块化编成实现（原创）(communication control used in pulse width detection procedures, VHDL modular organization to achieve (original))

1、ps/2键盘输入，通过led显示ascii码 2、稍等1s可以在lcd上显示输入的字符 3、其中键盘上的backspce键是用来清屏的 4、当lcd上显示满字符时，在按下按键自动清屏，从第一行显示。-1, ps/2 keyboard input, through the led display ascii code 2, wait 1s in the lcd display characters input 3, which backspce keys on the keyboard was required to settle the screen 4, when the lcd display full of characters, the press the button automatically Qing-ping, from the first line of display.

1 由matlab计算FIR数字滤波器的滤波系数； 2 用VHDL语言设计逻辑电路，再通过QUARTUS II 软件，将各个模块的电路封装成期间，在顶层设计中通过连线，完成整个系统。 (matlab VHDL QUARTUS )

Spartan 3 Digilent Demo:This demo drives the perphrials on the Spartan 3 board. This drives a simple pattern to the VGA port, connects the switches to the LEDs, buttons to each anode of the seven segment decoder. The seven segment decoder has a simple counter running on it, and when SW0 is in the up position the seven segment decoder will display scan codes from the PS2 port. This demo how ever does not drive the RS-232 port or the memory. This is a simple design done entirely VHDL not microblaze.

本程序实现两个整数平方和相加并且输出结果-the program two integers and the sum of squared output

说明：  基于fpga的函数发生器设计通过fpga实现正弦波输出(基于fpga的函数发生器)

这一计划表明它是如何在如此逻辑门是门NAND，什么它NAND它是结合两个闸门之一，并没有。

ODBC编程实例，使用ODBC对基于开关量数据采集卡的通信接口设计与实现。(ODBC programming examples, using ODBC for data acquisition card based digital communications interface design and implementation.)