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s7-1200 modbus tcp 通讯，1200PLC做服务器，(Modbus TCP/IP Server)

Flash按钮制作过程的源码，一个制作聚光按钮的Flash源文件，整个过程带有源码，为Flash新手朋友提供源码素材参考。

Algorithm and code to filter measured data from noise.

一款rpg小游戏，对想学游戏编程的朋友有帮助。-A rpg game for game programming, like the friends to help.

本来想实现一个规则图形内的颜色渐变填充...但由于一些原因,只完成了颜色填充,不过修改其变量可以改变填充颜色.-Originally wanted to realize the rules of graphics within a gradient fill color ... but for some reason, only the color-filled, but to modify its variables can change the fill color.

此算术表达式能够在程序运行时根据输入的变量大小和算术表达式动态解析表达式()

说明：  MIPI DSI Tx verilog / vhdl core

电磁计算中的矩量法的相关理论及技术，含有部分代码，适合初学者学习(Electromagnetic computation method of moments related theory and technology, with part of the code, suitable for beginners to learn)

说明：  c语言实现傅里叶变换，可用于各种谱分析，也可用于dsp下位机的处理(Fourier transform is implemented in C language and can be used in various spectral analysis)

说明：  传统的永磁同步电机(Permanent Magnet Synchronous Motor, PMSM)自抗扰调速 系统往往存在可调参数多且整定复杂的问题，利用滑模控制方法(Sliding Mode Control,SMC)对自抗扰控制(Active Disturbance Rejection Control, ADRC)结构进行改进，设计了PMSM 调速系统的滑模自抗扰速度控制器和电流控制器。将滑模控制方法引入自抗扰控制结构中，将自抗扰控制中的扩张状态观测器和非线性误差反馈控制律进行优化，在保留自抗扰原有抗扰性能的基础上，简化了参数整定，提高了系统的响应速度和鲁棒性，利用李雅普诺夫理论证明了控制器的稳定性。仿真结果验证了该方法的有效性。(The traditional permanent magnet synchronous motor (PMSM) ADRC system often has many adjustable parameters and complex setting. Using the sliding mode control (SMC) to improve the structure of ADRC (active disturbance rejection control, ADRC), the ADRC speed controller and current control of PMSM are designed Manufacture. The sliding mode control method is introduced into the ADRC structure. The extended state observer and the nonlinear error feedback control law are optimized. On the basis of retaining the original ADRC performance, the parameter setting is simplified and the response speed and robustness of the system are improved. The stability of the controller is proved by using Lyapunov theory. The simulation results verify the effectiveness of the method.)