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[File Format] KeilC511.0 DL : 0: Keil C51是美国Keil Software公司出品的51系列兼容单片机C语言软件开发系统，与汇编相比，C语言在功能上、结构性、可读性、可维护性上有明显的优势，因而易学易用。用过汇编语言后再使用C来开发，体会更加深刻。-Keil Software
Date : 2026-01-11 Size : 49kb User : 水晶蓝
[File Format] 51-cap DL : 0: 基于AT89C51单片机和555芯片构成的多谐振荡电路设计一电容测量电路，这种测量方法主要是通过一块555芯片来测量电容大小。让555芯片工作在直接反馈无稳态的状态下，555芯片输出一定频率的方波，其频率的大小跟被测量的电容之间的关系是：f=0.772/(R*Cx) ，固定R的大小，其公式就可以写为：f=k/Cx，只要能够测量出555芯片输出的频率，就可以计算出测量的电容。计算频率的方法可以利用单片机的计数器T0和中断INT0配合使用来进行测量。文件内含有proteus工程及keil工程建立，详细步骤。-A capacitance measurement circuit constitute multivibrator circuit based the AT89C51 microcontroller 555 chip design, this measurement method to measure the size of the capacitor through a 555 chip. 555 chip work under the direct feedback astable state, the relationship between the 555 chip output of a certain frequency, square wave, the frequency of the size of the measured capacitance is: f = 0.772/(R* Cx), fixed R the size, the formula can be written as: F = k/Cx, as long as it can measure the frequency of the 555 chip output, can be calculated a measured capacitance. Ways to calculate the frequency used in conjunction with use of single-chip counter the T0 and interrupt INT0 to be measured.
Date : 2026-01-11 Size : 204kb User : 瑛来
[File Format] 51li DL : 0: 本书通过大量系统实例精讲形式，介绍了51单片机应用系统开发的流程与方法。全书包括11章，首先讲述51系列的硬件结构、指令系统、开发过程中的常用单元、Keil 8051 C 编译器、51系统设计流程，引导读者进行基础知识学习。-Book through a lot of system instance: form, this paper introduces the 51 single-chip microcomputer application system development process and the method. Encyclopedia includes chapter 11, the first about 51 series of hardware structure, instruction system, unit is commonly used in the process of development, Keil compiler, 51 8051 C system design process, guide the readers on the basis of learning knowledge.
Date : 2026-01-11 Size : 3.32mb User : 刘凡