改程序实现了C8051F120混合信号片上系统32位乘法，提高了在C8051上实现乘法的精度，较少了计算误差...

对于没有i2c接口的单片机来说，要用标准i2c器件通讯来说只能通过软件模拟了 本程序提供几个最高效的函数实现其功能，新方法，更高效-For there is no single-chip interface for i2c, i2c devices use standard communications software simulation run only through the procedures provided by several of the most efficient function to achieve its function, new methods, more efficient

基于proteus6.9和keil软件联合设计的万年历里程，用C51编程-Proteus6.9 and keil software based on the joint design calendar mileage, using C51 Programming

can总线应用

ATmega16程序，控制1602液晶，只用了六个I/O口，我仿真过的，没有错误，而且还带Pretues图。-ATmega16 procedures, controls 1602 LCD with only six I/O ports, I" ve simulation, there are no errors, but also with Pretues map.

NOKIA3300 液晶驱动，已经调试通过，编译环境keilc -NOKIA3300 LCD driver, has been through the debugging, the compiler environment keilc

单片机 原理图 protel画的 初学者可用来制作实验板 省钱哦-Singlechip Protel schematic painting for beginners can be used to produce the experimental plate to save money, oh

这篇程序是我一个同学编的,并且已经应用到了二相步进电机(四线步进电机)上了.但是我认为此程序需要改进的地方有很多. -This procedure is a fellow student, I made and have been applied to a two-phase stepper motor (four-wire stepper motor) on. But I think this process needs to be improved where there are many.

串口通讯的XModem协议源码，有兴趣的朋友可以参考！-serial communications IEEE-source agreement, interested can refer friends!

C0851F020单品机DA转换源码，带液晶显示的功能-C0851F020 single source goods machine DA converters with liquid crystal display function

C8051F020串口通信例程-C8051F020 serial communication routines