vhdl testbench的编写，textio的编写是一个难点，也是一个重点，而这是本人搜集的多篇关于textio的文章，同时附有简单注释!...

// -*- Mode: Verilog -*- // Filename : wb_master.v // Description : Wishbone Master Behavorial // Author : Winefred Washington // Created On : 2002 12 24 // Last Modified By: . // Last Modified On: . // Update Count : 0 // Status : Unknown, Use with caution! // Description Specification // General Description: 8, 16, 32-bit WISHBONE Master // Supported cycles: MASTER, READ/WRITE // MASTER, BLOCK READ/WRITE // MASTER, RMW // Data port, size: 8, 16, 32-bit // Data port, granularity 8-bit // Data port, Max. operand size 32-bit // Data transfer ordering: little endian // Data transfer sequencing: undefined-//-*- Mode: Verilog-*- // Filename : wb_master.v // Description : Wishbone Master Behavorial // Author : Winefred Washington // Created On : 2002 12 24 // Last Modified By: . // Last Modified On: . // Update Count : 0 // Status : Unknown, Use with caution! // Description Specification // General Description: 8, 16, 32-bit WISH

Demo program for use UART STM8S

sm4密码算法在FPGA上的实现。 编程语言为VHDL，开发工具是quartus13.1，已在modelsim上仿真通过。压缩包包含两个.v文件，一个是sm4算法的库函数文件，一个是sm4算法的top文件。

9对于输入密码锁的键，假设复位后七个灯显示" 0"，使用sw1、sw2、sw3、sw4 4，只需按下并松开任意sw1、sw2键，使七个灯显示值加" 1"，只要按下并松开任意sw3、sw4，将使七个灯显示值加" 2"

K2FPGA开发板实验教程——I2C协议说明及verilog实现读写I2C器件，中文内涵代码，验证可用。(K2FPGA development board test tutorial- I2C protocol description and verilog read and write I2C devices, Chinese connotation code to verify availability.)

VHDL经典设计，值得参考。压缩包里面文件直接用记事本打开即可。-VHDL design classic, it is also useful.

实现spi接口的传输，并多外接EEPROM读写数据-Spi interface to achieve the transfer, and multiple external EEPROM read and write data

使用ISE软件实现OFDM通信系统的框架搭建，完成上板前的仿真工作(Realization of OFDM communication system with ISE software)

说明：  浙江大学计算机组成实验12指令扩展多周期CPU实现(The implementation of 12 instruction extended multi cycle CPU in Computer Composition Experiment of Zhejiang University)

try this for pq improvmnett