DDR3读写

主要是基于FPGA(EP2C8Q208I8)下的SRAM驱动，SRAM型号为IS61LV25616，程序语言为Verilog,开发环境为quartusII 7.0,为一工程，可直接下载到FPGA中，含电路图(Mainly based on FPGA (EP2C8Q208I8) driving under the SRAM, SRAM model IS61LV25616, programming language for Verilog, a development environment for quartusII 7.0, for a project, can be downloaded directly to the FPGA, including circuit diagrams)

使用verilog语言编写的异步串口模块，带有16级深的FIFO，它与DSP28335的SCI相似，可以帮助初学者更快地理解FPGA和DSP的硬件结构和编程思路(Use verilog language of asynchronous serial port module, FIFO with deep level 16, it was similar with DSP28335 SCI, can help beginners to understand faster the FPGA and DSP hardware structure and programming ideas)

说明：  这是32位移位寄存器，是用verilog编写的，能够实现从1到31位的左或右的移位(This is a 32-bit shift register, is prepared verilog, can be realized from the 1-31 shift left or right)

一个AXI slave的Verilog实现代码，内部有基于UVM编写的testbench,该slave是基于AXI3协议来实现的，可以给初学者一些启示

CIC 补偿滤波器。采用两种方法来设计，一个是frequency sampling method。另一个是Equal Rippler Design Method。这是一个非常有用的matlab代码。(CIC compensation filter. Two ways to design a frequency sampling method. The other is an Equal Rippler Design Method. This is a very useful matlab code.)

DE2_115_TV开发板例程，含SDRAM及异步FIFO应用: 通过协调器控制2入2出共4个FIFO操作SDRAM

Syllabus for VSC-HVDC course

actel公司用于1553总线的1553BRT-EBR核心代码 包括文档和代码非常有用(Actel company for the 1553 bus 1553BRT-EBR core code, including documentation and code is very useful)

一个用 verilog 实现的对FPGA串口进行控制的，串口控制器源代码(A serial port of FPGA is controlled by verilog. The source code of serial port controller)

//顶层模块 //本次正弦波频率大约在750-800Hz，没有精确计算，和DA的加载时间有关 module DA_AD ( clk, rst_n, DAC_SCLK, DAC_DATA, DAC_LDAC, DAC_LOAD, ADC_SDO, ADC_SDI, ADC_SCLK, ADC_EOC, ADC_CS, ADC_FS, led1 ); input clk; input rst_n; output DAC_SCLK; output DAC_DATA; output DAC_LDAC; output DAC_LOAD; //AD相关 input ADC_SDO; //ADC转换完成输出的数据 input ADC_EOC; //ADC的转换完成输出信号 output ADC_SDI; //ADC的输入数据 output ADC_SCLK; //ADC时钟信号 output ADC_CS; //ADC片选,低有效 output ADC_FS; //DSP模式帧起始信号 output led1; wire DATA_EN; wire [7:0] Cordic2driver; wire start; TLC5620_driver ins_TLC5620_driver ( .clk(clk), .rst_n(rst_n), .DATA_IN(Cordic2driver), .DATA_EN(DATA_EN), .