三态总线 GPIO

基于查找表的DDS的Verilog实现，分为相位累加器模块、ROM模块和顶层DDS模块(Verilog implementation of DDS based on lookup table)

说明：  Verilog 入门,如果你要很了解Verilog你不用先谖完一本厚厚的书还弄不清楚Verilog到底在干啥事,这份资料有助於快速了斛Verilog(Verilog Basic, If you try very hard to understand verilog by read a thick book, try read this first you will get a quick understanding of verlog.)

基于Xilinx FPGA的OFDM通信系统基带设计一书的源代码 (this is source code from a book)

program send sms by sim900 module

说明：  it can add two numbers and shows the answer

verilog编写的QPSK发射机的ＦＰＧＡ部分，已经过验证，完全达到要求。调制矢量误差４％(QPSK transmitter verilog prepared by the FPGA portion, has been proven, fully meet the requirements. Modulation vector error of 4 )

基于vhdl编写的贪吃蛇游戏，课程设计必备(Based on the VHDL language of the snake game, curriculum design essential)

stc12c5a60s2单片机做的两路呼吸灯，可以用ad和按键控制闪动频率(stc12c5a60s2 SCM done with the two breathing lights, you can use the ad and buttons to control the flashing frequency)

AD9910实现脉冲内线性调频信号，仅供参考(AD9910 to achieve linear FM pulse signal, for reference only)

简单状态机描述的同步FIFO，包括读写计数器，空满标志位的控制。可实现顺序读写数据，包括测试文件，仿真结果正确。 filelist:fifo.v,fifo_test.v