EDA

利用VHDL实现CPLD（EMP240T100C5）的PWM输出-Using VHDL realize CPLD (EMP240T100C5) of the PWM output

：随机脉宽调制是解决交流调速系统 中声学噪声的直接有效方法。随机零矢 量分 布是一种很好 的随 机方法，但其不对称的开关函数使其不适用于传统的电流采样方法。通过仿真表明 PWM周期中点采样的方 法无法得到准确的平均值，在分析不对称模式引起的纹波电流对电流平均值影响的基础上，提出了一种适合 于 RZV分布 的电流采样方法 。仿真结果证实该方法简单可行 。 -: Random pulse width modulation speed control system to solve the exchange of acoustic noise in a direct and effective way. Random zero vector distribution is a good random method, but the asymmetrical switching function so that it does not apply to the traditional current sampling methods. PWM cycle through the simulation shows that the mid-point sampling methods can not be an accurate, on average, the analysis of asymmetric mode ripple current caused by the impact on the current average value based on the proposed distribution of a suitable RZV current sampling methods. The simulation results confirmed that the method is simple and feasible.

EDA设计实验，用VHDL编写的数字时钟代码，能显示分，秒，小时。根据所设置的频率不同，能够调整时间快慢。-EDA design of experiments, prepared by VHDL code digital clock showing the hours, seconds, hours. According to the frequency of different settings, time to adjust speed.

Xilinx ISE 9.2 and ChinpScope Pro 9.2 Sn

1.设计一个具有24进制计时、显示、整点报时、时间设置和闹钟功能的数字钟，要求时钟的最小分辨率时间为1s。2.多功能数字钟系统功能的具体描述如下：     计时：正常工作状态下，每日按24小时计时制计时并显示，蜂鸣器逢整点报时。     校时： 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

VHDL 编写的RAM例子-RAM prepared VHDL example

FIR滤波器：自定滤波器的类型（低通，高通或带通）、设计指标（通带截止频率、通带波纹、阻带截止频率、阻带衰减） 1、根据指标选择合适的窗函数，用窗口设计法设计符合指标的FIR滤波器；并验证其性能是否满足预定指标。 (FIR filters: Custom filter types (low pass, high pass or band-pass), design specifications (passband cutoff frequency, passband ripple, stopband cutoff frequency, stopband attenuation) 1, according to indicators choose the right window function, using the window design method of FIR filter designed to meet the targets and verify that its performance meets the set targets.)

关于XILINX FPGA 内部 中文培训教材-XILINX FPGA on internal training materials in Chinese

基于fpga的coms摄像头 扫描，参考文献，(Fpga based on the coms camera scan, reference literature,)

基于verilog的LU分解,本文件包括详细的程序代码，运行文件，以及详细的文档(LU decompose based on verilog)