ahb_slave 在先进的单片机总线体系结构

注意：是verilog语言写的 一bit的全加器，实现4位数的串行加法器，一个时钟能完成一次一bit的全加(Note: It is verilog language to write a bit full adder, to achieve four-digit serial adder, a clock can be completed once a bit full adder)

说明：  AD9361资料文档及其寄存器配置参数文档(Ad9361 data and configuration parameter document)

基于FPGA的正弦脉宽调制波vhdl代码，同时输出正弦波与SPWM(Sine pulse width modulation wave VHDL code based on FPGA, at the same time with SPWM output sine wave)

这些文件是可以帮助我们初学者在超大规模集成电路与 FPGA 设备接口的外围设备。ALU 单元介绍算术和逻辑单元的功能和其在 FPGA 中的实现。Mutiplication 和积累股职能有 MAC 单元程序。在电机相接，陡峭电机运行中前进的方向。液晶屏显示程序可以帮助我们在 16 × 2 显示中显示的 ASCII 字符。串行通讯程序将传输和接收字符从和到的 FPGA 和 PC。

安富利SP605开发板ISE12.4版本的XBD文件，里面包括了开发板所有的接口，包括硬件和软件设计(Avnet SP605 development board ISE12.4 version XBD file, which includes the development board all interfaces, including hardware and software design)

说明：  Verilog数字系统设计教程(第二版) 夏宇闻(Verilog Digital System Design Course (2nd Edition) Xia Yuwen)

一个自定义的内存，存储了一个链表，通过数据通路访问内存，读取数据，计算链表累加和，数据通路的控制器由一个有限状态机组成，实现了多状态下控制信号的产生，计算的结果回写到内存制定单元。整个过程介绍了有限状态机的设计以及数据通路控制的基本原理

应用背景i2cSlave is a minimalist I2C slave IP core that provides the basic framework for the implementation of custom I2C slave devices. The core provides a means to read and write up to 256 8-byte registers. These registers can be connected to the users custom logic, thus implementing a simple control and status interface.关键技术The core has up 256 registers that can be accessed via I2C. I2C write operations are used to set the register address pointer, and write the register data. I2C reads are used to read the register data. Successive data reads or writes result in data being read or written from incremental register addresses. There is no limit on how much data can be read or written in a single access, but the internal register address pointer will wrap round to 0 once it reaches 255. Note that the address pointer is not initialized at reset, and the address pointer must

说明：  设计一个哈夫曼编码器 要求对一段数据序列进行哈夫曼编码，使得平均码长最短，输出各元素编码和编码后的数据序列。 ① 组成序列的元素是[0-9]这10个数字，每个数字其对应的4位二进制数表示。比如5对应0101，9对应1001。 ② 输入数据序列的长度为256。 ③ 先输出每个元素的编码，然后输出数据序列对应的哈夫曼编码序列。(Designing a Huffman Encoder Huffman coding is required for a data sequence to minimize the average code length and output the coded and coded data sequence of each element. (1) The elements that make up the sequence are the 10 digits [0-9], and each digit is represented by its corresponding 4-bit binary number. For example, 5 corresponds to 0101, 9 corresponds to 1001. (2) The length of the input data sequence is 256. (3) First output the encoding of each element, and then output the Huffman encoding sequence corresponding to the data sequence.)

在学习verilog语言及数电的相关知识后，运用所学知识及查阅资料完成对简易数字钟的设计，以巩固以前所学知识，提高解决和分析问题的能力以及掌握稍复杂逻辑电路的设计方法；深刻理解verilog语言的思路，并进一步掌握操作BASYS2板的使用；掌握计数器的设计方法，模块之间的协调方式，了解电路设计层次。       构造一个24小时制的数字钟，要求能显示时、分、秒（用数码管加LED来完成），能利用板上的微动开关作时钟的调整，用板上的LED的闪烁作整点报时。