7541数字高频头源程序，7541数字高频头源程序

atmel公司atmega单片机bootloader的源代码-ATmega Atmel single-chip companies bootloader source code

该源码采用标准c编写，使用SPI方式访问SD卡。-c prepared using standard, the use of SPI mode visit the SD Card.

在Proteus中主要用C51单片机、DS1302和DS18B20等芯片实现带温度显示的万年历。-It was mainly used the C51 microcontroller，DS1302，and DS18B20,etc in proteus, which had a temperature display of the calendar.

鉴于MCS-51系统只提供“二级中断嵌套”，提出扩展51系统中断优先级的纯软件方法。其利用51系统内建的中断允许寄存器IE和中断优先级寄存器IP，通过屏蔽字机制来实现；以C51的形式，给出这种扩展方法的函数库实现，为该方法的使用赋予友好、简洁的用户接口。-Given MCS-51 systems only provide "two interrupt nesting," expanded 51 priority system interruption of pure software. The use of 51 built-in system allows interruption Register IE and priority interrupt register IP, through word shielding mechanisms to achieve; C51 in the form of this expansion is the way to achieve functions, methods for the use of empowerment friendly, simple user interface.

一共40M 不能贴在论坛中。绝对好东西。要得话留下email-not affixed to the Forum. Absolute good thing. Fine words left email

51单片机制作的电子钟，增加日期显示，带有详细的注释。-51 MCU production of electronic bell, the date of increase, with detailed comments.

R63400 C51 test program

通用的餐饮收费系统:其主要技术是通过计算机串口与IC卡相关设备进行数据交互.-Common food and beverage charges system: Its main technology is the computer serial port and IC card relevant equipment data exchange.

单片机控制的语音智能小车，能感应人的命令做出动作。十分好的程序！-Smart single-chip voice-controlled car, the order can be induced to move. Very good program!

这个是液晶模块1602A用于单片机AT89S52的C语言驱动头文件.这个头文件不是普通的头文件，笔者在其中加进了很多自己的东西。而且经过自己的实际验证是可以用的。 　　有了该文件，你可以不用看1602的DATASHEET就会使用。-This is a LCD module 1602A for the single-chip AT89S52 the C language driver header file. This header file is not an ordinary header files, in which the author added a lot of our own things. But after their own actual authentication can be used. With the file, you can not watch the 1602 will be used DATASHEET.