一个随机抽题程序 可以用来做演示用 还包括了定时器

at89c2051制作的超声波测距源程序 范围20cm-10m 精度1cm 如果需要电路图 请与我联系！-AT89C2051 source produced by the scope of ultrasonic rangefinder 20cm-10m accuracy 1cm circuit diagram if you need please contact me!

AVRMEGA16的USART运用,已在三个芯片上试过,能正常通信-USART

一个PIC的CCS开发实例，实现了LCD功能-A PIC Examples of CCS development, realize the LCD function

DS18B20 单线数字温度计指南,除硬件结构介绍外,还包含有汇编语言源代码及C语言源你码,是一个很不错的开发参考资料.-Single-wire digital thermometer DS18B20 Guide, in addition to the hardware structure of introduction, it also contains the source code in assembly language and C language source your code, is a very good development of reference materials.

Silicon 8051F310双串口模拟程序源代码-Silicon 8051F310 dual serial simulation program source code

c8051f020 ADC1 的简单应用-c8051f020 ADC1 a simple application

cs8900A的详细资料，详细介绍了开发CS8900A的流程，很具有指导意义-CS8900A detailed information on the development of a detailed introduction of the CS8900A flow, it is instructive

pci7222单片机的驱动程序 ，欢迎大家来下载。-SCM pci7222 driver, welcomed everyone to download.

主要功能：利用AT89C/S51作为控制器，JM12864M型号的lcd作为人机界面，18B20温度传感器和DS12887时钟芯片为辅助IC的可调万年历系统。此万年历可以形象的表现出系统当前的状况，并能随意设置闹铃和时间，具有保存和不保存的当前设置的功能。-Main functions: the use of AT89C/S51 as a controller, JM12864M models of lcd as a man-machine interface, 18B20 temperature sensors and DS12887 Clock IC chip for auxiliary adjustable calendar system. This calendar can show the image of the system

线阵CCD511的驱动，使用C8051F020单片机进行驱动-array CCD511 driving, the use of microprocessor-driven C8051F020