通过环路串口判断串行通信电平转换芯片功能是否正常，并通过读写DRAM 判断硬件。...

ＡＲＭ７芯片S3C44B0x的PS2键盘的源程序-ARM7 chip S3C44B0X the PS2 keyboard source

DS18B20资料及使用程序，适合51单片机开发，适合初学者-DS18B20 information and use the program for 51 MCU development, suitable for beginners

单片机的中断定时操作，详细介绍了c51中定时器设置和中断设置应用情况-SCM interrupted regular operations, detailing the decoder timer settings and installed applications interruption

绝对好东西!aduc812AD转换代码,望对大家学习有所帮助!-Definitely a good thing! Aduc812AD conversion code, hope to help everyone to learn!

12864液晶在出厂时其对比度已经调好，所以用户在使用的时候第三管脚可不用接任何东西，本实验板上为了兼容多家12864液晶所以加了液晶对比度调节电位器，若用户使用我们配套的12864液晶可不用管它，液晶的第三管脚悬空就可以。有些液晶功耗比较大，用户在使用的时候可将液晶的第19、20引脚的背光不接，这样字体会很清楚-12864 LCD contrast, when the factory has a good tune, so when users can not access the third pin anything, this experiment in order to compatible with more than 12,864 on-board LCD so the addition of LCD contrast adjustment potentiometer, if users supporting our 12864 can not regardless of LCD, LCD" s third pin can be left vacant. Some relatively large power consumption of LCD, users can be used when the first 19,20 LCD backlight will not receive the pin, so that fonts will be very clear

用反转法实现快速高效的4*4键盘扫描，并通过串口将按键值输出-Inversion method with fast and efficient implementation of the 4* 4 keyboard scanning, and send out the key value through the serial port

详细介绍picf87x系列单片机，其中主要包括内部结构等诸多信息-Detailed introduction picf87x Series Single-chip, which mainly include the internal structure and many other information

自己在keil51中用C实现了一个电子钢琴展览项目，cpu用P89V51RD2，完全自己写的代码-Keil51 with C in the realization of an electronic piano exhibitions, cpu use P89V51RD2, completely write their own code. .

基于89c51的小东东，液晶显示DS1621采集来的温度值，c语言编程-89c51 based on small Dongdong, liquid crystal display to the DS1621 temperature collection, c language programming

AVR驱动18B20例子 AVR驱动18B20例子-AVR-driven examples of AVR drive 18B20 example 18B20