described dds direct digital frequency synthesis of the basic tenets addition to...

一个2位的BCD码十进制加法计数器电路，输入为时钟信号CLK，进位 输入信号CIN，每个BCD码十进制加法计数器的输出信号为D、C、B、A和进位输出信号COUT，输入时钟信号CLK用固定时钟，进位输入信号CIN. (A 2-bit BCD code decimal adder counter circuit input as the clock signal CLK, a carry input signal CIN, D, C, B, A, and the carry output signal COUT, each BCD code decimal adder counter' s output signal, the input clock signal CLK Fixed clock, binary input signal CIN.)

基于NIOS2的VGA接口IP核，具有很好的借鉴性和参考性(NIOS VGA IP)

针对QUARTUS的DMA的VHDL代码实现(DMA Controller Code in VHDL)

《Verilog HDL 程序设计教程》5-"Verilog HDL Design Guide" 5

基于QuartusII环境下以模块化的形式做成的视频复合同步信号。(QuartusII-based environment to create the form of modular composite video sync signal.)

基于VHDL语言的循环码编码器的程序，以一个（15，6）循环码为例-VHDL language based on the cycle of the program code encoder to a (15,6) cyclic code as an example

资源描述该乘法器可用于过滤器，算术运算和；

papers based on distributed arithmetic.

这是我的VHDL格式的电子密码锁源程序，请站长审核啊-This is my VHDL source code format of the electronic lock, please review ah owners

（1）能够测试10HZ~10MHZ的方波信号； （2）电路输入的基准时钟为1HZ，要求测量值以8421BCD码形式输出； （3）系统有复位键； （4）采用分层次分模块的方法，用Verilog HDL进行设计，并对各个模块写出测试代码； （5）具体参照说明文档（包含源代码，仿真图，测试波形，详细的设计说明）(A square wave signal capable of testing 10HZ~10MHZ; (2) the reference clock input by the circuit is 1HZ, and the measured value is output in the form of 8421BCD code; (3) the system has a reset key; (4) adopt the method of layering sub sub module and design with Verilog HDL; (5) write test simulation program.)