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

说明：  插值滤波器,用于音频解码调制解调,滤波器系数用移位相加实现(Interpolation filter, audio decoder for modulation and demodulation, filter coefficient shift combined with the realization of)

It is vhdl code for defining a finite state machine

说明：  通过按键输入学号，并循环显示： 电路功能描述：通过Ego1上的按键输入自己的学号（8位10进制数），并存储在32位的寄存器中；8位10进制数输入完成后，实现滚动显示效果。(Enter the student number by pressing the key, and display it in a cycle: Circuit function description: input one's own student number (8-digit decimal number) through the key on ego1, and store it in 32-bit register; after the completion of 8-digit decimal number input, the scrolling display effect is realized.)

乐曲硬件演奏电路设计的全部VHDL代码，在QuartusII环境下编译通过，已存在QuartusII项目-err

花了半个月才改好的Atera DE1/DE2 ps2 IP 驱动核。放在FPGA工程目录下可以直接使用。本IP能够驱动PS/2键盘和鼠标。使用时只要调用HAL目录下的文件即可以直接使用！-Spent a good two weeks we have made some changes Atera DE1/DE2 ps2 IP-driven nuclear. On the FPGA project directory can be used directly. The IP to drive PS/2 keyboard and mouse. When used as long as the call HAL directory file that can be used directly!

说明：  实现电子密码锁的各项功能,经过编译和仿真(Electronic code lock of the function, the compiler and simulation)

自适应均衡器

MAX481、MAX483、MAX485、MAX487-MAX491以及 MAX1487是用于RS-485与RS-422通信的低功耗收发器， 每个器件中都具有一个驱动器和一个接收器(The MAX481, MAX483, MAX485 The MAX487-MAX491, and MAX1487 low-power transceivers for RS-485 and RS-422 communication, each device has a drive and a receiver)

将FPGA设计仿真结果数据写入到txt记事本中，然后通过Matlab读取txt中的数据并显示图像(write the FPGA simulation result data into textbook,and read these data from textbook and display image in Matlab)