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...

avr单片机的串口程序，用于操作avr单片机的串口，可以实现发送接收字符、字符串。-SCM avr serial procedures, for the operation of single-chip serial avr can be achieved Send receive characters, strings.

LPC2103,调电编译程序，很好用，IAR环境下，完全编译-LPC2103, tune electric compiler, very good use, IAR environment, fully compiled

DS1302实时时钟芯片汇编源代码工程文件-DS1302 real-time clock chip compile the source code works documents

这程序是实现单片机与PC机的通信程序 可供大家参考或学习！-MCU and PC communication program for reference or study!

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

通过8255查询键值，显示不同的数字。k1显示1，K2显示2，K1和K2显示3,如此类推。最多能显示7。-8,255 inquiries through the keys, show different figures. K1 shows a, K2 showed 2, K1 and K2 showed three, and so forth. The most that can be shown 7.

此程序是用CYPRESS单片机编写，功能是将电压信号转换为PWM信号-This procedure is used to prepare Singlechip CYPRESS, function is the voltage signal is converted to PWM signal

HT1621的驱动文件，对于测试段码液晶比较有用，部分程序参考了别人。-HT1621 driver files, for testing liquid crystal above code more useful, some of the procedures with reference to others.

一个在8051F120上实现的免费的实时系统-a 8051F120 in achieving the free real-time systems

it can be used to learn programing for 51