NIOS II IDE 编程， FLASH测试程序，仅供参考。

频率计VHDL编程。设计一个4位数字显示的十进制频率计，其测量范围为1MHz，测量值通过4个数码管显示以8421BCD码形式输出，可通过开关实现量程控制，量程分10kHz、100kHz、1MHz三档(最大读数分别为9.999kHz、99.99kHz、999.9kHz)； 当输入信号的频率大于相应量程时，有溢出显示。 -Cymometer VHDL programming. Design of a 4-digit decimal display frequency, the measurement range of 1MHz, the measured value through the four LED 8421BCD code shows the form of output can be controlled through the switch range, range at 10kHz, 100kHz, 1MHz Three (maximum reading were 9.999kHz, 99.99kHz, 999.9kHz) when the input signal is greater than the corresponding frequency range, it shows overflow.

说明：  altera 最新的CYCLONE IV的pci-e核的testbench，VHDL源程序。(altera latest CYCLONE IV of the pci-e core testbench, VHDL source code.)

costas的verilog程序，包含乘法器，DDS，鉴相器，环路滤波器等模块(costas the verilog program, including multipliers, DDS, phase detector, loop filter modules)

4位全加法器的modelsim工程带testbench(Four full-adder modelsim project with testbench)

VHDL语言实现H.264的opencore，内涵说明文档、源码和文献等资料。 -VHDL language H.264 realize the opencore, meaning that documents, information such as source code and documentation.

电路酒窖杂志的vhdl示例。vga控制器、视频发生器等PS2鼠标vhdl

基于FIR滤波器的LMS自适应算法的FPGA实现,verilog语言(FIR filter based on LMS adaptive algorithm on FPGA, VHDL language)

Top module name : SHIFTER (File name : SHIFTER.v) 2. Input pins: SHIFT [3:0], IN [15:0], SIGN, RIGHT. 3. Output pins: OUT [15:0]. 4. Input signals generated from test pattern are latched in one cycle and are synchronized at clock rising edge. 5. The SHIFT signal describes the shift number. The shift range is 0 to 15. 6. When the signal RIGHT is high, it shifts input data to right. On the other hand, it shifts input data to left. 7. When the signal SIGN is high, the input data is a signed number and it shifts with sign extension. However, the input data is an unsigned number if the signal SIGN is low. 8. You can only use following gates in Table I and need to include the delay information (Tplh, Tphl) in your design.

该代码实现了IIC对24C02的读写，写采用页写的方式，读采用随机的方式。(This code implements the IIC on 24C02 read and write, write, write using the page mode, read random way.)

说明：  实现简单的硬件加法器、除法器，实现源码文中注释(Realize simple hardware adder and divider, realize source code)