Digital Cymometer VHDL procedures and simulation of the file name: plj.vhd.

调制信号后4倍内插的verilog代码，用于基带成型滤波器输入数据(4 times after modulation signal interpolation verilog code, used to baseband shaping filter input data)

8位并行输入的数转换成串行输出，是基于高级硬件编程语言VHDL编写的。(8-bit parallel input into serial output digital conversion is based on the high-level hardware programming language VHDL prepared.)

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.

这是用verilog语言实现的1024点ff程序t-This is achieved using Verilog 1024 language ff procedures point t

在SOPC下制作自定义部件（PWM发生器）的源程序，包括硬件描述HDL文件和驱动程序文件-Produced in the SOPC custom component (PWM generator) of the source, including hardware description HDL files and driver files

超低速的光纤一体发接收发送器,同于以前的光纤一体化接头都只适用于2M以上的通讯,如需将232等低速信号用光纤传输出,需要加复杂的调制解调电路,网动光电新生产的这款光纤头主要针对低速信号,可以传送DC-500KPS的信号,极大地简化了硬件设计.(Ultra-low-fat whole-speed fiber-optic transmitter receiver with fiber-optic integration in the previous joint only applies to more than 2M communications, etc. For the 232 low-speed optical fiber transmission of signals, the need to increase the complexity of the modulation and demodulation circuit, the net move Photoelectric new production of this first major response to low-speed fiber-optic signal, DC-500KPS can send the signal, greatly simplifying the hardware design.)

线性反馈移位寄存器的最右侧位称为输出位。水龙头是 XOR 按顺序和输出位，然后反馈到最左边的位。在最右边的位置的位序列的叫做输出流。双边投资条约中的线性反馈移位寄存器状态影响输入被称为水龙头 （在图中的白色）

This Book description about LCD in Board DE2

vga编程。实现3种模式的vga控制，分别产生横彩条，竖彩条，棋格彩条的显示-vga programming. Realization of the three-mode vga control, generate horizontal color of the color of the shaft, and the chess grid color of the show

数字时钟的VHDL语言描述，具有高精度，控制性能良好-Digital Clock description of the VHDL language, with high precision and good control performance