LCD

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)

Thread Templete Class Custom Thread

LED显示屏的设计可以实现动态字体的左移右移上下移动等功能(LED display is designed to realize the right to move to the left and so on down the function of dynamic fonts)

IAR开发环境，STM8L单片机，Att7053计量芯片，此仪表程序可以显示电压电流频率(IAR development environment, STM8L SCM, Att7053 measurement chip, the instrument can display the voltage and current frequency of program)

个人开发使用的SPI双机通讯，是基于Atmage128的开发，特别对初学者具有很高的参考价值，程序调试通过，而且有protues仿真。(Personal development of dual-use SPI communication is Atmage128 based development, especially with a high reference value for beginners, program debugging through, and there protues simulation.)

TI 经典的范例 对于学习msp430系列芯片的人肯定有用的 呵呵 可以看看(The classic example of TI msp430 series chips for learning useful Oh man certainly can look at)

单片机程序控制实现函数发生器的功能，在函数发生器中起主控制作用(SCM process control functions to achieve the function generator, function generator in the role play the main control)

本例是用51单片机的键盘解码程序，亲试好用(This case is a keyboard with 51 decoding process, pro-test handy)

基于单片机STC89C51和74LS164的多功能数字万用表(Based on microcontroller STC89C51 and 74 ls164 multi-function digital multimeter)

C8051f500 Flash读写擦除操作(C8051f500 Flash read and write erase operation)