基于EPM1270的VGA显示器接口源码Verilog

哈希算法FPGA实现代码，采用MD5算法，并给出了仿真波形。(MD5 hashing algorithm for FPGA implementation code)

采用VHDL语言编写，此题为全国大学生电子设计竞赛题目，产生一个伪随机信号，并用时钟提取模块提取时钟，最终能在示波器上获得眼图，验证实验结果。此程序已经经过本人亲自验证，完全可用，可用于电赛培训之中。

yong VerilogHDL yu yan bianxie de pinlv fa sheng qi,shi yong ISE ruan jian da kai.-Used VerilogHDL to make a frequency builder.

说明：  使用STM32官方提供的DSP库进行FFT，虽然在使用上有些不灵活（因为它是基4的FFT，所以FFT的点数必须是4^n），但其执行效率确实非常高效，看图1所示的FFT运算效率测试数据便可见一斑。该数据来自STM32 DSP库使用文档(. Using the official DSP library provided by STM32 for FFT is not flexible in use (because it is the FFT of base 4, so the number of FFT points must be 4 ^ n), but its execution efficiency is really very efficient, as can be seen from the test data of FFT operation efficiency shown in Figure 1. This data comes from STM32 DSP library usage document)

此是进行循环冗余效验的Verilog编码，适合多种标准，如CRC16(this Cyclic Redundancy is well-tested Verilog code for a variety of criteria, such as CYXLIC REDUNDANCY)

说明：  Matlab - to hdl code for square root

空调温控电路有限状态自动机， 有ＴＥＭＰ＿ＨＩＧＨ和ＴＥＭＰ＿ＬＯＷ 分别与传感器相连用语检测室内温度．-air-conditioning temperature control circuit finite state automaton, and TEMP_LOW TEMP_HIGH with sensors connected to the indoor temperature detection terminology.

本程序使用Verilog语言实现了SPI接口的设计，可以直接烧到FPGA实现与MCU的通信,自带有测试文件。(The program uses the Verilog language design SPI interface, you can burn directly communicate with the FPGA, MCU, comes with a test file.)

uart 收发器 verilog 代码，实现自收发功能 sys clk = 25m, baud 9600 停止位1， 无校验位； 代码实现了串口自收发功能，及把从 PC 收到的内容都发送会 PC, 其他波特率，自行修改代码即可，在 alter 的FPGA 上调试通过； (verilog code uart transceiver to achieve self-transceiver function sys clk = 25m, baud 9600 1 stop bit, no parity code from the transceiver features a serial port, and the contents received from the PC will send the PC, another Potter rate, self-modifying code can, in the alter of the FPGA, debugging through )

音频spdif格式编解码，可以将音频格式在i2s dsd以及spdif之间转换(Spdif audio codec)