de2的简单例程led

ALTERA官方板子DE2官方代码，芯片是EP2C35F672C6N(ALTERA official board DE2 official code, the chip is EP2C35F672C6N)

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.)

实现基于FPGA的控制MCP2515发送的程序，本人编写通过测试，希望提供帮助(FPGA-based control program sent MCP2515, I write to pass the test, hoping to help)

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)

ＦＰＧＡ在通信上的运用：基于VHDL的帧同步程序(Application of FPGA in communication: Based on VHDL frame synchronization procedures )

or1200 PS2_Core code

本程序是fpga控制flash的读写程序，包括了程序和仿真时的测试文件(fpga flash)

FPGA资料与所用元器件的数据参考手册与应用指南(ds312_Spartan-3E FPGA Family )

VESA CVT视频参数计算器，输入分辨率和刷新率即可得到需要参数。(VGA Timing Calculator)

uart documentation, july 17, 2019. the document describes the basics of verilog programming and how to implement them on an fpga device