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3D打印TMC5130驱动程序，修正了原版的错程问题(TMC5130 river for 3d printer, debug missing step problem.)

生成PWM波的c程序，需要的可以自己下载查看(A C program for generating PWM waves)

说明：  介绍了一种用加速度传感器测量振动位移信号的方法。 该方法采用频谱转换法，首先将加速度谱转换成位移谱，再计算出位移谱中每个频率分量对应的幅值 、圆频率和初相角，最后对各位移分量进行叠加得到振动位移的时间历程。 验证试验结果表 明该方法 可行 ， 精度可满足工程 实践的需要 。(A method of measuring vibration displacement signal with acceleration sensor is introduced. In this method, the acceleration spectrum is first converted into displacement spectrum, and then the corresponding amplitude, circular frequency and initial phase angle of each frequency component in the displacement spectrum are calculated. Finally, the time history of the vibration displacement is obtained by superimposing each frequency component. The test results show that the method is feasible and the accuracy can meet the needs of Engineering practice.)

说明：  带接收和发送协议处理的串口调试工具，可只接收并显示自定义关键字的串口数据，非常好用，带这种功能的可用的此类软件不多，值得收藏。(ComFilter,can receive and display your expired information from COM.)

利用单片机IO口模拟UART程序,系统用了一个定时器和一个外部中断,外部中断主要是用来检测串口起始位的到来。(IO mouth simulation UART program, microcontroller system with a timer and an external interrupt, external interrupt is mainly used to detect the arrival of the start bit serial port.)

说明：  能够驱动5v-12v直流电机电动小车的驱动不但要求电机驱动系统具有高转矩重量比、宽调速范围、 高可靠性，而且电机的转矩 -转速特性受电源功率的影响，这就要求驱动 具有尽可能宽的高效率区。(The drive of 5V-12V DC motor electric car requires not only the motor drive system with high torque-weight ratio, wide speed range and high reliability, but also the torque-speed characteristics of the motor affected by power supply power, which requires the drive to have as wide a high efficiency area as possible.)

说明：  提供了AD7606采集数据的例程，传输模式采用SPI模式(AD7606 data collection routine is provided, and SPI mode is adopted in transmission mode)

μC/GUI 是一种用于嵌入式应用的图形支持软件。它被设计用于为任何使用一个图形LCD 的应用提供一个有效的不依赖于处理器和LCD 控制器的图形用户接口。它能工作于单任务或 多任务的系统环境下。μC/GUI 适用于使用任何LCD 控制和CPU 的任何尺寸的物理和虚拟显示。 它的设计是模块化的，由在不同的模块中的不同的层组成。一个层，称作LCD 驱动程序，包 含了对LCD 的全部访问。μC/GUI 适用于所有的CPU，因为它100 由的ANSI 的C 语言编写的。(μC/GUI is a graphical support software for embedded applications. It is designed to provide an effective does not rely on a graphical user interface of the processor and an LCD controller of any use of the application of a graphic LCD. The system can work on a single task or multiple tasks environment. μC/GUI for any LCD controller and CPU of any size physical and virtual display. Its design is modular, composed of different layers in different modules. A layer, called the LCD driver, including full access to the LCD. μC/GUI applies to all of the CPU, because it is 100 written in ANSI C language.)

ad9833的输出程序，单片机为51.基于DDS算法的输出(ad9833 output program, the microcontroller 51. The output of the algorithm based on DDS)

用S3C44B0X做的定时器和PWM，运行时，led灯跑马，同时蜂鸣器动作！(S3C44B0X to do with the timers and PWM, run-time, led lights and horse racing action at the same time buzzer!)