用51单片机c语言编写的键盘扫描程序

基于中断控制的声光报警器的设计.采用中断方式，设计一个声光报警器的硬件电路和控制程序。程序运行时，一旦8位开关信号量状态满足设定条件，就触发中断，使发光二级管按规律闪烁，同时扬声器播放一段音乐。 硬件设备包括一台微机、一个MFID微机实验箱、一块T型板，2输入四与门 74ls08、8位总线驱动器 74ls245、LM386A音频放大器、排阻、扬声器各一个，发光二极管8个，470uF电容2个、104电容4个，插线若干。 -Interrupt-based control of sound and light alarm design. Using interrupt mode, designing a sound and light alarm hardware circuits and control procedures. The program is running, once the 8-bit switch signal to set the amount of state to meet the conditions to trigger interrupts, so that light-emitting diode flashes according to the law, while speakers play a piece of music. Hardware includes a computer, a computer simulation, MFID box, a T plate, 2 input 4 and gate 74ls08, 8-bit bus driver 74ls245, LM386A audio amplifier, exclusion, speakers of a light-emitting diode 8, 470uF capacitor 2 a, 104 capacitors 4, plug-line number.

AVR单片机控制LCD液晶显示器，只有源码！-AVR片LCD液 示 源 耄

msp430f169 clk操作 430单片机有丰富的外围模块其中时钟可以有多种选择可以令单片机能在各种速度下运行-430 Singlechip msp430f169 clk operation has a rich peripheral module clock which can have a wide range of choices can make single-chip can run at various speeds

各种51单片机源程序集，包括浮点数的计算，多字节的加减等算法的实现-SCM source scripts, including floating point calculations, multi-byte such as addition and subtraction algorithm implementation

用ATMAGE16写的对AVR进行仿真和下载的程序-ATMAGE16 used to write the AVR for simulation and download procedures

ST公司STR系列单片机演示程序使用BSPI作串口通信-ST companies STR series microcontroller demonstration program for the use of serial communication BSPI

自己搞的小东西，单片机控制NE2000兼容网卡的原代码，-their practice of the small things, the 8031 NE2000 compatible Ethernet control of the original code,

用来控制无线数传电台收发信息，用于工业控制领域的远程通信-used to control wireless data transmission radio transceiver information to be used for industrial control areas of remote communication

AVRMEGA16的USART运用,已在三个芯片上试过,能正常通信-USART

是一款开发板的外围电路试验程序(附有原理图) -Is a development board of the external circuit testing procedures (with schematic diagram)