8279 initialization procedure, keyboard and display processing subroutine

P串行实时时钟芯片DSl302程序设计中的问题与对策-P serial real-time clock chip DSl302 program design problems and countermeasures

这是由C51单片机实现的接触式IC卡的读写-This is achieved by the C51 single-chip contactless IC card read-write

时钟芯片PCF8563的51单片机程序 时钟不超过12MHZ，本程序已在51上试过，可以用-PCF8563 clock chip clock of 51 single-chip program does not exceed 12MHZ, this procedure has been tried in the 51

在AT89S52上写的一个扫雷程序，显示液晶屏是128*64.-AT89S52 write in a mine-clearing procedures, LCD screen is 128* 64.

sub子程序 即可调用本文件中的子程序 DISP 子程序名：显示子程序DISP-sub subroutine

at89C2051驱动步进电机的原理图和源码-at89C2051 stepper motor drives the schematic and source

12" LCD iniotial +SSD1289IC-12" LCD iniotial+SSD1289IC

液晶ATM12864D的驱动程序，应该也可以驱动其他类似的12864液晶，绝对精简，只含ASCII码显示，汉字可自己写，我开发的系统就是用的这个驱动，很实用-ATM12864D LCD driver should be able to drive other similar LCD 12864, absolutely streamlined, containing only ASCII code display, to write Chinese characters can be their own, I developed systems that use this driver, it is practical

基于C51单片机的PPOE协议栈源代码。-C51 microcontroller based on the PPOE protocol stack source code.

本程序已经调试通过，使用I2C来从外部时钟芯片中读取并写入时间。文档包含i2c的驱动程序、时钟芯片的读与写、以及使用定时器中断产生脉冲来模拟gps对时。-This procedure has been debugging through the use of I2C chip from the external clock time to read and write. Document contains the i2c driver, the clock read and write chip, and the use of the timer interrupt to simulate the pulse generated when the gps on.