FPGA based implementation of a SDR

基于FPGA的直接序列扩频发射机的设计与仿真。实验中以QuartusII 7.2 为设计和仿真工具， 各模块采用Verilog HDL设计并封装，顶层使用图形设计方式,最后得到的仿真结果使用Matlab描点来绘制出波形。 (FPGA-based direct sequence spread spectrum transmitter of the design and simulation. Experiment to QuartusII 7.2 for the design and simulation tools, the module using Verilog HDL to design and package, the top-level use of graphic design, and finally the simulation results obtained using the Matlab description points to draw waveforms.)

vhdl very good debug release vhdl very good debug release

ADC-DAC transmittion works thru SPI on 25 MHZ. Used for some student project on Xilinx sprtan3a FPGA

vhdl编写的4X4键盘扫描程序，可以有效的消除抖动，并且提供蜂鸣器输出。(VHDL prepared 4X4 keyboard scanner, you can effectively eliminate jitter and provide buzzer output.)

QP编程创始人所著的介绍QP编程思想的书，中文版。QP是用于嵌入式中状态机编程的开源软件。(QP programming book written by the founder of the introduction of QP programming ideas, and Chinese version. QP is open source software for embedded state machine programming.)

曼彻斯特编解码 Xilinx提供的VHDL的源代码-Manchester codec Xilinx provide VHDL source code

control stepper motor by fpga card with vhdl program

基于FPGA与LM4550B的AC97软声卡VHDL语言驱动，版本2.0-FPGA-based soft and LM4550B the AC97 sound card driver VHDL language, version 2.0

这个源代码可以把DE2的板子作为一个USB设备使用，以便用PC软件去控制DE2-the source code can Dictyophora the board as a USB device use, to use PC software to control DE2

用verilog语言的实现FIFO存储器，以先进先出的方式处理数据(The FIFO memory is implemented in Verilog language, and data is processed in FIFO)