4. If a modified source code is distributed, the original unmodified

说明：  FPGA——IP_RAM实验： 创建IPRAM核，单端口，10位地址线（256字节），8位数据线（每字节8byte），读写使能 input [9:0] address; input clock; input [7:0] data; input wren; //置1则写入 output [7:0] q; LNXmode：控制LEDC显示 1：mode1，从k1~k3输入data的低4位，ledb计时，从0~f，计时跳变沿读取k1~k3的值，存入RAM 8个数之后，从RAM输出数据，用leda显示，同样每秒变化一次(The experiment of FPGA-IP_RAM: Create IPRAM core, single port, 10 bit address line (256 bytes), 8 bit data line (8 byte per byte), read and write enablement)

SDRAM控制器源码，内含完整的控制器verilog源代码和测试代码，超值哈。(This readme file for the SDR SDRAM Controller includes information that was not incorporated into the SDR SDRAM Controller White Paper v1.1.)

简单电子玩具的感知模块程序设计,通过外部输入信号改变内部信号.从而改变玩具的状态-simple electronic toys perception module programming, through external input signal a change in the internal signal. In order to change the state of toys

卷积码编码及其Viterbi译码的实现-Convolutional code encoder and Viterbi decoding to achieve

*** ***OC_I2C_Master使用说明*** ***** 使用步骤：1.将OC_I2C_Master文件夹拷贝到安装盘alterakits ios2components目录下。 之后重新打开SOPC Builder，在可用元件列表的DeviceSOPC组中将出现OC_I2C_Master 元件，即可像其它Altera外设元件一样添加和使用。 2.hdl文件夹中包含有描述i2c逻辑的硬件描述文件，不能删除。 3.HAL文件夹包含硬件抽象层所需的文件（即驱动），不能删除。 4.inc文件夹包含有定义底层硬件的C语言头文件，不能删除. 5.I2C_doc文件夹下有关于该元件的开发文档。-********* OC_I2C_Master use*********** use these steps: 1. OC_I2C_Master folder will be copied to the installation disk alterakits ios2components directory. Re-open after the SOPC Builder, a list of available devices will appear DeviceSOPC Group OC_I2C_Master components, can be similar to other peripheral devices like Altera add and use. 2.hdl folder contains logical description i2c hardware description files, can not be deleted. 3.HAL folder contains the necessary hardware abstraction layer file (ie drivers), can not be deleted. 4.inc folder contains the definition of the underlying hardware C language header files, should not delete. 5.I2C_doc folder on the developmen

利用8段数码管实现的秒表时钟，FPGA使用EP2C80208C8N，通过例化数码管控制模块、秒表计时模块、时钟进位模块等实现准确计时。

wishbone接口的设计，在交换机和MAC之间建立wishbone接口(the wishbone interface design, wishbone interface between the switch and MAC)

驱动8*8点阵块显示汉字，可以自己根据要显示的内容随意更改，已通过验证。(Blocks of 8* 8 dot matrix drive display Chinese characters, you can display the content according to their random changes, has been verified.)

检测上升沿的verilog程序，有验证程序，可用synplify验证-Detection of rising edge of the Verilog procedures, there is the verification process can be used to verify Synplify

SPI总线硬件描述语言Verilog下的实现，含主模式和从模式的实现，经过仿真验证，可作为一个单独的模块使用(SPI bus under the Verilog hardware description language to achieve with the main mode and slave mode realization, through simulation, can be used as a separate module uses)