EDA设计 交通灯

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

说明：  fft代码,采用蝶形算法,包括C,matlab和verilog代码(fft code, using butterfly algorithm, including C, matlab and Verilog code)

采用双线性变换法设计IIR数字滤波器设计的c代码，包括低通、高通和带通(Document recording the design of IIR digital filter c code)

VHDL_APPOINTMENT TIME(Hẹn thời gian hiển thị LCD sử dụng ngôn ngữ VHDL)

本人编写的定点除法器,开发软件为XILINX的ISE6.2,通过PAR仿真.-I prepared for the sentinel division, the development of software for the ISE6.2 Xilinx, PAR through simulation.

说明：  SDIO 接口，实现SD卡的控制器功能，带有详细的注释(SDIO Interface,to realize the controller of SD Card,and have detail description.)

实现十字路口简单交通灯的verilog hdl源代码,可以实现-Realize a simple traffic lights at the crossroads of the verilog hdl source code, can be achieved

C语言写得FIR滤波器代码，简单实用，是学习滤波器设计的好材料，附带PPT滤波器设计说明(C language written FIR filter code, simple and practical, is a good learning materials of filter design, with PPT filter design )

完成GPS的IRIG_B码解码，已经模块化，并且有详细的中文注释(Completed the GPS IRIG_B of decoding modular, and there are detailed notes in Chinese)

说明：  直接数字式频率合成器DDS设计、Verilog。 产生的信号可以是正弦波或方波、三角波、锯齿波等，自选。 采用DDS技术，将所需生成的波形写入ROM中，按照相位累加原理合成任意波形。 此方案得到的波形稳定，精度高，产生波形频率范围大，容易产生高频。 本实验在设计的模块中，包含以下功能： （1）通过 freq 信号输入需要的频率的值； （2）通过 wave_sel 信号选择所需的波形； （3）通过 amp_adj 信号选择波形放大的倍数。(DDS design of direct digital frequency synthesizer, Verilog. The generated signal can be sinusoidal or square wave, triangular wave, sawtooth wave and so on, optional. By using DDS technology, the required waveforms are written into ROM, and arbitrary waveforms are synthesized according to the principle of phase accumulation. The waveform obtained by this scheme is stable, accurate and easy to generate high frequency waveform. This experiment includes the following functions in the designed module: (1) Input the required frequency value through freq signal; (2) Choosing the required waveform by wave_sel signal; (3) Select the multiplier of waveform amplification by amp_adj signal.)