RISC 微控制器

support for Coldfire m5441x processors.

verilog HDL经典的入门书籍，内容很详细，讲了许多实例，适合硬件描述语言初学者。(verilog HDL classic introductory book, the content is very detailed, spoke many instances, suitable hardware description language for beginners.)

本书通过100个实例，详细介绍便件描述语言vHDL的各种语法现象及其在专用集成电路(AHc)设计蝴还中的使用方法。(the book through one hundred examples, it detailed description language vHDL pieces of the phenomenon and its various grammatical in ASIC (AHc) were also designed butterfly The usage.)

通过MATLAB产生单脉冲信号的数据，存储下来作为verilog代码实现的DDS的数据源，用于验证DA数据的ddio的调试是否有问题。(The data of monopulse signal generated by MATLAB is stored as the data source of DDS implemented by Verilog code to verify whether the ddio debugging of DA data is problematic.)

说明：  Protel中VHDL设计参考,pdf,不错的一本学习VHDL的书(Protel design in VHDL)

说明：  学习VHDL可以用得上，有很多实例，可以对照着自己写一些东西(VHDL can be useful to learn, there are many examples, can be done to write something)

使用verilog语言描述的二阶巴特沃斯IIR滤波器，程序中有参数说明，已经运行通过(Using verilog language to describe the second-order Butterworth IIR filter, the program has parameter description has been run through)

RapidIO：使用Avalon-ST直通接口的实现方法，可以在fpga上实现(rapidio altera)

超声波测距代码参考了网上的，数码管自己写的，我的是50mHz的晶振，测距不准可以自己修改一下。大佬勿喷。

Task4 for learning verilog