GPIO

步进电机是将电脉冲信号转变为角位移或线位移的开环控制电机，是现代数字程序控制系统中的主要执行元件，应用极为广泛。。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，当步进驱动器接收到一个脉冲信号，它就驱动步进电机按设定的方向转动一个固定的角度，称为“步距角”，它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量，从而达到准确定位的目的；同时可以通过控制脉冲频率来控制电机转动的速度和加速度，从而达到调速的目的。(Stepper motor is an open loop control motor which transforms electrical pulse signal into angular displacement or linear displacement. It is the main executive element in modern digital control system, and is widely applied. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step. We can control the angular displacement by controlling the number of pulses, so as to achieve the goal of accurate positioning. At the same time, we can control the speed and acceleration of motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation.)

本程序的功能是在TI的32位单片机LM3S9D96官方开发板上，基于IAR软件平台的，在触屏上显示一个动态的正弦波的C程序。用的是官方的开发板，液晶屏也是官方的。本程序是自己原创。程序非常规范，有详尽英语代码注释。 本程序是该单片机的一个高级液晶显示应用。(The function of the program is a dynamic sine wave C program in TI' s 32 the microcontroller LM3S9D96 official development board, based on the the IAR software platform, touch screen display. Official development board, the LCD screen is also an official. This program is original. The program is very standardized, detailed English code comments. This program is an advanced LCD microcontroller applications.)

智能追踪小车，并且可以用遥控手动控制转弯加前后左右(Intelligent tracking car, and can be controlled manually with the remote turn around Canada)

温度试验18b20数码4位温度计18B20.rar(8b20 temperature test 8B20.rar digital thermometer 4)

这是单片机的安装源程序，这是第一次上传的单片机资料，希望能对大家有用(This is a single chip installation source, this is the first single chip data upload, hope it' ll be useful)

对应MSP430椭圆曲线加密器的客户端应用程序，通过UART传输加密解密数据，实现整篇文章的加密解密。(MSP430 corresponding elliptic curve encryption device client applications through the UART transmit data encryption and decryption, the realization of the entire article, encryption and decryption.)

一个数字梯形，选择k条路线，每条路线从第一层的某个数开始，每次进入下一层到达左下或者右下的数字，直到最后一层为止。每条路线不能经过相同的路径，但是可以经过相同的数字节点。 输出一个整数，表示能得到的最大的k条路径经过的数字之和(A digital ladder, the K route, each route the first layer of a number, each time to enter the next layer to reach the left or right next to the number, until the final layer. Each route can not pass through the same path, but can pass through the same number of nodes. Output an integer representing the sum of the number of the largest K paths that can be obtained)

时钟程序的编写 这是基于89系列 适用于初学者(clock based on 89C51 you can make a clock by yourself if you want )

串口与pc机通讯，51单片机例程，只需要修改io口即可实现。(Serial communication with pc, 51 MCU routine, you only need to modify the io port can be realized.)

松下车载碟机的协议代码，用于多种汽车的原车配备机头的扩展协议(Panasonic Car turntables protocol code, the original car used in a variety of vehicles equipped with head of the extended protocol)