Xilinx CPLD源代码，使用XC9500系列CPLD,驱动液晶

通过总结当前对处理器架构的安全性能的处理方法，提出一种增强DSP处理器安全性能的方法。主要从并行性方面进行了改进。最后对改进的方法进行了仿真和结果分析。(By summing up the current security architecture of the processor performance approach, a DSP processor to enhance the safety performance of the method. Mainly from the aspects of parallelism to improve. Finally, improved methods and results of simulation analysis.)

DDR2 SDRAM仿真模型，适合于ModelSim下工作，请先阅读readme-DDR2 SDRAM Simulation Model which is suitable for modelsim. Please read readme file firstly.

基于FPGA的数字低通滤波器 。。。。。(FPGA-based digital low-pass filter。。。。。)

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.)

NIOS II IDE 编程， 定时器测试程序，仅供参考。-NIOS II IDE programming timer testing procedures, for information purposes only.

EDA-Verilog 编码原则，初学者必看！-EDA-Verilog coding principles, beginners must-see!

基于FPGA的自治型SPWM波形发生器的设计！正弦脉宽调制（SPWM）技术在以电压源逆变电路为核心的电力电子装置中有着广泛的应用，如何产生SPWM脉冲序列及其实现手段是PWM技术的关键。大家共同探讨哈！-FPGA based SPWM autonomy-based waveform generator design! Sinusoidal pulse width modulation (SPWM) technology in the voltage source inverter circuit as the core of the power electronic devices have a wide range of applications, how to generate SPWM pulse sequence and its implementation means PWM technology is the key. Kazakhstan investigate everyone!

VHDL实现的8位乘法器，所有仿真全部通过-VHDL to achieve 8-bit multiplier

利用FPGA开发软件 进行rs编码的仿真 模拟RS编码的过程步骤(rs code in FPGA)

AES128 encription vhdl code