tenor notes, books and instruction cycle frequency prepared, clocked 12m. Compar...

介绍单片机中PS/2接口的相关协议，可以使用一般的普通键盘-introduced MCU PS/2 interface of the relevant agreements, can use an ordinary keyboard

ADI公司，型号为ADuC814的单片机的I2C总线通讯程序源码，含MASTER和SLAVE两种方式-ADI, model for the SCM ADuC814 I2C bus communication program source code, including the MASTER and SLAVE two ways

这是一个为51系列单片机开发的4*4键盘驱动程序。该驱动程序包括2个文件，使用时将C文件关联入工程，在调用文件前包含H文件即可。本键盘驱动程序具有两个接口函数提供两种扫描方式（阻塞和非阻塞），可以任意定制返回键值，具有防抖动处理，具体使用方法可以参见注释。（本程序在Keil C51开发环境中测试成功，并经过多次实践应用）。-This is a series of 51 MCU development of the 4* 4 keyboard driver. The drive included two documents, the use of paper will be linked into C, the call of documents containing H documents. The keyboard driver has two interface functions provide two scan mode (blocking and non-blocking), it will return to arbitrary custom keys with innovative and handling, the use of specific methods can be found in Notes. (This procedure Keil C51 development environment to test successful, and after several practice application).

红外通信是利用950nm近红外波段的红外线作为传递信息的媒体，即通信信道。发送端采用脉时调制（PPM）方式，将二进制数字信号调制成某一频率的脉冲序列，并驱动红外发射管以光脉冲的形式发送出去；接收端将接收到的光脉转换成电信号，再经过放大、滤波等处理后送给解调电路进行解调，还原为二进制数字信号后输出。-Infrared communication is the use of near infrared 950nm infra-red as the transmission of information media, namely communication channel. The sending end when the use of pulse modulation (PPM) approach will be a binary digital signal into a frequency modulation of the pulse sequence, and driver fired infrared tube to the form of light pulses sent receiver will receive the pulse of light conversion to electrical signals , and then, after amplification, filtering and other treatment to the demodulation circuit after demodulation, reduced to a binary digital signal after the output.

这是我在学校做电子钟留下的资料 希望能给你带来帮助-This is my electronic bell in the school do hope that they will be left behind by the information to help you

Atmel的93C46、8位模式、C51语言。适合MCS-51单片机-Atmel s 93C46, 8-bit mode, C51 language. For MCS-51 single-chip microcomputer

自己现在用的51系列单片机下载线，用74HC373芯片 PCB-himself with the 51 series microcontroller downloaded line with 74HC373 chip PCB

这是原创的基于PIC单片机的红外数据传送的接口程序包-This is the original PIC microcontroller-based infrared data transmission interface package

HT1622头文件，HT1622液晶显示模块底层函数 -HT1622 header files

FlashFlex51微控制器