X5043读写程序，非常少见的可以直接调用的源代码，对你非常有帮助...

实时时钟芯片DS1302采用串行接口，只需3根引脚便可以完成操作，其使用非常方便。这里采用AT89S52单片机作为外部微处理器，来对DS1302进行控制-Real-time clock chip DS1302 serial interface, only three pins will be able to complete the operation, its use very convenient. AT89S52 microcontroller used here as an external microprocessor to control of the DS1302

用c51编的 键盘输入的乘法运算，增加语句可以增加功能-C51 series with the keyboard input of the multiplication to increase the sentence can increase the functional

STC单片机大量电路实例，有电源电路，通信电路，含原理图-STC Singlechip a large number of circuit examples, have the power circuits, communication circuits, including schematic diagram

ST7920驱动128*64液晶串并口程序 可下载直接使用 另有相关资料解释-ST7920 driver 128* 64 LCD serial and parallel program can be downloaded directly related to the use of additional data interpretation

profibus 的官方文件，朋友给的，朋友可是花钱买来的。-PROFIBUS_DP SPECIFICATION

键盘+密码锁的设计,单片机初学者必须掌握程序,适用于proteus-Keyboard+ password lock design, microcontroller for beginners to grasp the procedures applicable to proteus

这个程序是用MSP430写的chipcon公司的无线收发芯片CC1100的驱动程序。-This procedure is written MSP430 Chipcon

在cygnal020开发板下的lcd（菜单）部分显示程序设计，利用数据表的结构，将菜单设计方法简化，便于菜单项修改。但是占用存储空间较大。-In cygnal020 under development board lcd (menu) of the display program design, use of the data table structure design methods to simplify the menu, easy to modify menu items. However, larger storage space occupancy.

单片机汇编语言编写的IC卡读写程序--IC card read/write program for SCM. It is written in assembly language.