这是对51单片机RAM的扩展的程序 内有电路图，非常详细的注释...

在Proteus中利用单片机AT89C51设计温度测量与控制、LED显示电路，并利用Keil完成相关软件的编写与调试。-In the Proteus design using microcontroller AT89C51 temperature measurement and control, LED display circuit, and use Keil to complete the preparation of related software and debugging.

用12C887制作的电子时钟,用89C51单片机读取并显示.-12C887 produced with electronic clock 89C51 single-chip reader and displayed.

开发usb块传输的固件程序,可pc循环向下微机发数据-development usb block transmission firmware procedures, pc downward cycle of the computer data

AVR官方设计的充电器-designed charger

KS0108控制器的12864液晶驱动程序-KS0108 LCD controller 12864 driver

这段代码是有关USB功能的实现源代码 包括驱动 等-This code is related to the realization of the source code for USB functions, including drivers, etc.

美国达拉斯温度传感器DS18B20的温度数值转化程序。-Dallas DS18B20 the temperature into numerical procedures.

实验箱上的蜂鸣器发出对应的音调（中音），当同时按下L和1-7时是，蜂鸣器发出低音，同时按下H和1-7时，蜂鸣器发高音。只要按键没松开，蜂鸣器一直发声，直到松到按键。-The buzzer sounded on the test box corresponding to tone (Tenor), when at the same time when you press the L and 1-7, the buzzer sounded a bass, while pressing the H, and 1-7 when the buzzer made treble. As long as no release button, buzzer sound has always been, until the pine to the button.

keil 环境 收IR及发IR的相关软件-keil environmental collection of IR and IR-fat related software

AD7715 的调试程序！CPU芯片是c8051F020-AD7715 debugging procedures! CPU chip is c8051F020