用8051汇编编程的定点，三字节浮点，四字节浮点的字程序库。...

PIC单片机C语言学习－教程-PIC C language learning-Guide

C51 TIMER 0的使用 Timer_0_mode_1_timer_gate_hard-C51 TIMER 0 use Timer_0_mode_1_timer_gate_hard

这是一个红外报警系统，该系统通过555调制红个发光管，发出38KHZ的红外信号，对面使用一个红外接收头接收信号用来检测是否有人通过，如果有，则声光报警，-This is an infrared alarm system, which modulator 555 through a red light-emitting tube, issued 38KHZ IR signal, opposite to the first use of an infrared receiver to receive signals to detect whether or not it was passed, if so, make a sound light alarm,

本程序是为51系列单片机开发的16*2型液晶模块驱动程序。该驱动程序包含两个文件，将C文件关联入工程，在调用文件前包含H文件即可。程序提供了简便实用的接口程序，具体使用方法参见文件注释。（本驱动程序在Keil C51开发环境中测试成功，并经过多次实践应用）。-the procedures for the development of single-chip 51 16* 2 LCD driver. This driver contains two files, documents related to C, the call of documents containing H documents. Procedures to provide a simple and practical interface procedures, the use of specific methods, see the Notes document. (Driver in the Keil C51 development environment to test successful, and after several practice application).

440BXARM开发板 试验程序和源代码-440BXARM development board testing procedures and source code

ic卡水表c语言代码，ic卡水表的所有模块。-icmater.c

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单片机控制减速电机，红外循迹，壁障，运水，08年黑龙江电子大赛题目-Single-chip motor deceleration control, infrared tracking, barrier, transport, water, Heilongjiang in 2008 e-Competition Title

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.

基于sl1811芯片的功能，完成usb host 的功能-usb host