EDA常用计数函数VHDL程序设计，减法计数器：可预置数：

10G高速以太网mac VERILOG源码 可仿真可实现(10G high speed Ethernet MAC verilog code can be used for synthesis or inplementation)

rc6 algorithm designed based on verilog and is verified

verilog_ad0809 cpld control

说明：  分数时延FIR滤波器FPGA设计的相关资料及软件无线电实验平台MFSS6842使用说明(Fractional delay FIR filter FPGA design related information and software radio experimental platform MFSS6842 instructions)

接收机测试输入信号， 生成正余弦波，采样率、频率、幅度、相位可调节 并将生成的数据进行输出 压缩包包括Verilog代码、testbench代码、word文档 matlab仿真代码(The receiver tests the input signal, Generation of positive cosine wave, sampling rate, frequency, amplitude, phase can be adjusted And output the generated data The compressed package includes the Verilog code, the testbench code Matlab simulation code)

说明：  数字示波器实验，利用AD、DA和VGA三个外设来实现简易示波器，DA外设发送正弦波给AD外设，AD外设解析成数字信号将数据送给VGA外设进行显示。在VGA上可以看到DA外设发送的波形、波形频率和波形峰峰值。(In the experiment of digital oscilloscope, AD, DA and VGA are used to realize simple oscilloscope. DA peripheral transmits sine wave to AD peripheral. AD peripheral resolves into digital signal and sends data to VGA peripheral for display. The waveform, waveform frequency and peak value of DA peripheral can be seen on VGA.)

例程是基于quartus的，FPGA通过EMIF给DSP发送数据，里面包含了一个简单的状态机和一个基于IP核的fifo，适合初学者(Routine is the FPGA to send data to the DSP via EMIF, which contains a simple state machine and an IP-based core fifo, suitable for beginners)

说明：  Verilog HDL语言编写的32位程序计数器（PC）完整工程及相应仿真，QuartusII7.2下编译通过可正常使用。(Complete engineering and simulation of Verilog HDL language of the 32-bit program counter (PC), QuartusII7.2 compiled through normal use.)

C6000系列之6701开发板相关文件及说明(C6000 Series of 6701 development board-related documents and notes)

用VHDL语言实现数字钟的设计，要求设计实现一个具有带预置数的数字钟，具有显示年月日时分秒的功能。用6个数码管显示时分秒，set按钮产生第一个脉冲时，显示切换年月日，第2个脉冲到来时可预置年份，第3个脉冲到来时可预置月份，依次第4、5、6、7个脉冲到来时分别可预置日期、时、分、秒，第 8个脉冲到来后预置结束，正常工作，显示的是时分秒。Up为高电平时，upclk有脉冲到达时，预置位加1.否则减1。