analog-I2C-driver-MPU050

读写器与射频卡通信的设计采用RC522射频读写芯片与射频卡进行通信，符合ISO14443规范协议；硬件系统设计中主要有AVR单片机主控模块、电源模块、存储模块、外部时钟模块、LCD模块；软件系统设计采用C语言，遵循模块化和结构化编程模式，设计了射频卡操作程序、软关机与自动关机程序、LCD显示、串行Flash存储器、外部时钟等外部设备驱动程序。所设计的手持式读写器具备对MF1 S50、S70射频卡的读写、实时状态显示、系统在线升级以及关机等功能。(This handset can process the data offline or online, reading and writing from 10 cm far. This handset is low-power, miniature, modular design and so on. This article includes: the communication design between RF card and Reader, hardware system design and software systems design. The communication design between RF card and Reader used to RC522 RF chip control RF cards, in line with ISO14443 standard protocol Hardware system design mainly include AVR microcontroller control modules, power modules, memory modules, external clock modules, LCD modules Software system designed with C programming language, and follow the modular structure of the programming model, and has the RF card operation procedures, soft shutdown and automatic shutdown procedures, LCD display, serial Flash memory, an external clock, and other external device driver Procedures. The handset readers has the MF1 S50, S70 RF card reader function, real-time status display function, the system online update function and so)

此资料给出了一套电子设计工程师的试题，很具指导性、学习性和操作性，大家不妨下载来看看吧。(This information is given a set of electronic design engineers, test questions, it is instructive to learn, and operational, you may wish to download and see it.)

LTM公司芯片的时钟配置资料。内容很详细清楚！(LTM chips clock configuration data. Content is more clear!)

用循环程序 画用星号* 组成的方框图，可以设置方框的边长大小(Block diagram with an asterisk* cyclic process consisting of paintings, you can set the size of the box side)

步进电机28BYJ48型四相八拍电机，电压为DC5V—DC12V。当对步进电机施加一系列连续不断的控制脉冲时，它可以连续不断地转动。每一个脉冲信号对应步进电机的某一相或两相绕组的通电状态改变一次，也就对应转子转过一定的角度（一个步距角）。当通电状态的改变完成一个循环时，转子转过一个齿距。四相步进电机可以在不同的通电方式下运行，常见的通电方式有单（单相绕组通电）四拍（A-B-C-D-A。。。），双（双相绕组通电）四拍（AB-BC-CD-DA-AB-。。。），八拍（A-AB-B-BC-C-CD-D-DA-A。。。）(Stepping Motor 28BYJ48 four-phase eight-phase motor, the voltage DC5V-DC12V. When a series of continuous control pulses are applied to the stepper motor, it can be continuously rotated. Each pulse signal corresponds to the stepper motor of a phase or two-phase winding power state change once, also corresponds to the rotor through a certain angle (a step angle). When the change in the power-on state completes one cycle, the rotor turns one pitch. Four-phase stepper motors can be operated in different power-up modes. The common power-up modes are: single-phase winding power (ABCDA ...), double (dual-phase winding)-DA-AB-...), eight beats (A-AB-B-BC-C-CD-)

第九届飞思卡尔智能车程序 国赛第四 底层文件都是自己写的 3个ccd labview上位机(Ninth Freescale smart car race fourth country program)

基于51单片机的 红外+LCD+继电器C程序显示 实现的功能较多，比较适合初学的人。(Based on 51 single-chip infrared+LCD+ relay C program display of more functions, more suitable for beginners person.)

利用28335的cpu-timer0的中断功能进行AD采集，并有AD校核程序(Use cpu-timer0 interrupt functions of 28335 AD acquisition, and checking procedures AD)

瑞萨 pwm 控制（自带头文件）压缩包打包 (Renesas pwm control (from the lead file) compressed packed)

基于蓝牙协议栈BLE4.0的模块CC2541的ADC采集实验(Stack BLE4.0 module CC2541-based Bluetooth protocol ADC acquisition experiment)