vhdl,双向移位寄存器，实现置数，左移及右移操作

试设计一种彩灯控制器控制8盏灯。该彩灯控制器有4种自动切换的花样。第一种花样为彩灯从右到左，然后从左到右逐次点亮，全灭全亮；第二种花样为彩灯两边同时亮一个逐次向中间移动再散开；第三种花样为彩灯两边同时亮两个逐次向中间移动再散开；第四种花样为彩灯两边同时亮三个，然后四亮四灭，四灭四亮，最后一灭一亮。四个花样自动变换，重复以上过程。输入时钟频率为500Hz，灯亮的时间在1―4秒之间，可以自由控制。电路中以“1”代表灯亮，以“0”代表灯灭。-Lantern try to design a controller to control 8 lights. The controller has four kinds of lanterns automatically switch the pattern. The first lantern pattern for right-to-left, and then lit from left to right each time, the whole body light second pattern for a lantern light at the same time on both sides of successive spread to the middle of moving again third pattern for lantern light at the same time on both sides to the middle of two successive re-dispersed mobile fourth pattern for the lantern light at the same time on both sides of the three, then four out four bright, four out four-liang, the last light out. Automatically transform the four patterns, repeat the process above. Input clock frequency of 500Hz, the time for lights between 1-4 seconds, they can con

ALTERA on chip fifo. this document is from altera. good resouce

FPGA设计全流程－软件综合使用、 -FPGA design of the whole process- the integrated use of software, FPGA design of the whole process- the integrated use of software,

FPGA流水线设计的资料，可以作为学习FPGA开发并行操作的一个经典教材，具有很好的指导作用。(FPGA pipeline design information can be developed as a learning FPGA parallel operation of a classic textbook, has a good guide.)

是vhdl语言，在fpga开发板上实现十进制技术（7段数码管显示），包括复位，清零，计数使能。-Is the VHDL language, in the FPGA development board realize decimal technology (7 digital tube display), including reset, cleared, counting enable.

mimo检测算法的FPGA实现，包括最小迫零检测算法和ML检测算法，已在ISE上仿真通过 (mimo detection algorithm for FPGA implementation, including the smallest zero forcing detection algorithm and ML detection algorithm has been simulated by ISE on)

用VerilogHDL写的spi 核的例子(A simple example of SPI core using Verilog HDL)

用fpga实现的连连看游戏，功能还不完善，不过可以借鉴。(Realize with FPGA Lianliankan game, function is not perfect, but can be used for reference.)

Description of a sistolic arhictecture for a FFT implementation in FPGA.

基于NIOS II的SD CARD MUSIC PLAYER源码，包括硬件SOPC-NIOS II based on the SD CARD MUSIC PLAYER source, including hardware SOPC