HT1621 driver, is a complete driver, very easy to use

单片机实用子程序-Singlechip practical Subroutine

单片机与pc机通讯例程的mcu部分，package发送模式，具有数据验证功能,keil c编译-SCM and pc machines mcu part of routine communications, package delivery mode, with data validation features, keil c compiler

经典的汇编语言程序！是把书上理论的不好 理解的原理用程序表达出来！-classic assembly language! The book is on the theoretical understanding of the principles of bad procedures used expression!

I2Cc语言程序例子,tested already.-I2Cc Language Program example, tested already.

单片机的简单的串口通信测试程序单片机的简单的串口通信测试程序

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

在c8051f020上实现的crc校验程序，绝对原创-C8051f020 achieved in the crc check procedures absolute originality

PS2接口协议，PS2与单片机的接口,用单片机的同志有服气了-PS2 interface protocol, PS2 and microcontroller interface, the MCU is convinced the comrades

利用89S51将6*6键盘转换成PS/2协议-89S51 will use 6* 6 keyboard into PS/2 protocol