移位相加乘法器

本源码为Nios II的开发示例,主要演示基于Nios II的uCOS的移植。开发环境QuartusII。 本示例十分经典，对基于SOPC开发的FPGA初学者有很大帮助。(The source code for the Nios II development of examples, mainly based on the Nios II shows the uCOS transplant. Development environment QuartusII. This example is very classic, FPGA-based SOPC development of great help for beginners.)

64-point FFT/IFFT processor architecture : Rrdix-SDF

实现4倍抽取的CIC抽取滤波器模块的Verilog实现，在对数据进行抽取之前，首先进行滤波(Extracted 4 times realize CIC decimation filter module Verilog realize that in the data collected before the first filter)

Quartus_II_9.0破解器有明确的破解Quartus_II_9.0的步骤(Quartus_II_9. 0 cracked the clear cracked Quartus_II_9. 0 steps)

应用背景 可用于FIR滤波器的设计，移植性强。现在有代码是根据xilinx V4的硬件做的。可很方便的进行小的改动，去适应其它公司或版本的硬件IP核。不做改动也没问题。应该不用综合到IP core以外的逻辑中去。 关键技术 完全与xilinx的V4的DSP48硬件资料相同，比用IP generate产生的IPcore的好处就是可以随便换到其它芯片的代码中，甚至是altera的芯片中，也能编译通过。并且，对于乘法累加器不了解的筒子可以做个参考！

本实验为UART回环实例，实验程序分为顶层unrt_top、发送模块uart_tx、接收模块 uart_rx，以及时钟产生模块clk＿div。uart＿rx将收到的包解析出8位的数据，再传送给 uart_tx发出，形成回环。参考时钟频率为100MHz，波特率设定为9600bps。(This experiment is an example of UART loop. The experimental program is divided into top-level unrt_top, sending module uart_tx, receiving module uart_rx, and clock generation module clk_div. Uart_rx parses the received packet into 8 bits of data and sends it to uart_tx to send out, forming a loop. The reference clock frequency is 100 MHz and the baud rate is set to 9600 bps. stay)

主控cc2530通过debug接口对目标cc2530进行程序烧写，使用DMA进行数据传输，已调试通过。(Master cc2530 through the debug interface for writing the program to target cc2530, using the DMA data transfer, has been work successful.)

8253可编程定时器/计数器芯片 VeriLog实现(8253 programmable timer/counter chip VeriLog achieve)

说明：  这个事VHDL基础知识，内面主要内容是编码器的插V过程，值得下载学习！(it is really useful for those who never touch it!)

例程是基于quartus的，FPGA通过EMIF给DSP发送数据，里面包含了一个简单的状态机和一个基于IP核的fifo，适合初学者(Routine is the FPGA to send data to the DSP via EMIF, which contains a simple state machine and an IP-based core fifo, suitable for beginners)