atmel官方的sam7x256芯片在keil编译环境下的全部源代码，以工程形式提供。...

freescale HC12_A64例程 -Freescale HC12_A64 routines

51的4*4键盘驱动当按键按下时返回一个值，且只在按下键时返回一次该值，之后返回0；无按键时返回0；包含消抖功能，在键盘的下降沿触发。 基于keil平台-51 4* 4 keyboard driver when the button is depressed to return a value, and press the button only once the value to return, followed by return 0 no keys to return 0 contains extinction Buffeting function, the falling edge trigger at the keyboard. Keil-based platform

lpc单片机串行通信程序-lpc Serial Communication Program

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使用vs1003芯片制作的mp3播放器。-Produced by using the vs1003 chip mp3 player.

For the 128x64 type LCD programming. You can read a very particular document.-For the 128x64 type LCD programming. You can read a very particular document.

AV系统数字调谐PLL频率合成器的单片机控制 文章利用LC7218PLL频率合成器在AV领域的电调谐功能,提出了一个TV/FM/AM全景接收机设计方案,重点设计分析了LC7218与单片机之间的I/O数据结构,显示了它优良的性能。-AV system PLL digital tuning of the single-chip frequency synthesizer to control the use of article LC7218PLL frequency synthesizer in the AV field of electrical tuning function, a TV/FM/AM panoramic receiver design programs that focus on design and analysis of the LC7218 and MCU between the I/O data structure, demonstrated its excellent performance.

一个很好用的密码锁程序，MCU用的是EM78P447，经试用非常可靠，提供给想学习EMC的用户使用，如有需要原理图的请发邮件到micheal23@sohu.com,注：需注明LOCK原理图-good with a password lock procedures, the MCU is EM78P447, tested very reliable, available to want to learn EMC users, if necessary schematic please send mail to micheal23@sohu.com, Note : LOCK be annotated diagram

AVR s AVR-CDC ，form OURAVR,COM-AVR s AVR-CDC, form OURAVR, COM

一个4*4键盘程序，当有按键按下时将在数码管上显示出按下的字符-A 4* 4 keyboard procedure, when the button is depressed will have in the digital control on the press shows that the characters