calling
共 24 篇文章
calling 相关的电子技术资料,包括技术文档、应用笔记、电路设计、代码示例等,共 24 篇文章,持续更新中。
基于AT89C51单片机八位抢答器的设计
<p>随着科技的进步与发展,电子产品在我们的生活中随处可见,各类电子产品以其方便、精准、稳定的特点越开越被人们所广泛应用.本文是围绕AT89C51单片机进行的抢答器设计.使用MAX7219芯片驱动数码管的方式驱动LED数码管显示,采用C51语言编写程序,整个程序采用模块化设计,通过主函数对各子程序的调用来实现.子程序主要包括:键盘扫描部分、时间显示部分、MAX7219芯片初始化与命令写入部分、定时
基于STC89C516单片机的多功能导盲杖的设计
<p>导盲杖是盲人群体出行最基本的工具之一,为了解决盲人群体因传统导盲杖功能单一、设计缺陷而导致出行不便的问题,团队经过结构设计改良、硬件选型搭配和软件功能实现等步骤设计出一款多功能导盲杖。该设计参考了人机工程学理论设计改良导盲杖的结构,系统以嵌入式微控制器STC89C516为控制器,超声波模块为避障装置,GPS模块为定位导航装置,辅以LED灯条、震动马达和ISD1420语音模块为报警呼救装置,来
基于STM32的养老呼叫系统设计
<p>人口老龄化和政府对民生问题的关注,对健全养老机构的设施提出更高的要求。基于单片机的养老无线呼叫系统由无线n RF905发送模块、LCD显示程序、声光报警程序、呼叫接收端无线n RF905接收模块组成。该系统的应用有助于养老机构工作人员更方便、及时关照老年人,老年人得到更好的照顾,使老人安享晚年,让子女放心。</p><p>Aging of population and the governme
机载选择呼叫模拟系统设计
<p>机载选择呼叫系统主要运用于地面塔台并通过高频或甚高频通道与某架特定飞机进行定向呼叫.根据机载选择呼叫系统所具备的功能进行模块化设计;用Altium2004软件,根据模块设计进行原理图地绘制;用C语言编辑单片机核心程序,实现代码对比功能;通过ISISProfessional软件进行选呼功能的仿真,实现代码对比、提示和复位;对电路板进行测试后发现,系统能够实现代码对比功能并且有声光提示且按下复位
基于单片机的太阳能自动跟踪双轴系统设计
<p>设计了一种基于51单片机的双轴太阳跟踪系统,以提高太阳能的利用效率。该自动控制系统基于51单片机为控制核心的基础上,配合时间、阴晴天检测、光电检测等模块组成,利用阴晴天检测模块判断当前是阴天还是晴天,从而分别调用视日轨迹追踪模式及光电追踪模式。以51单片机为核心,根据太阳的方位角与俯仰角计算出太阳能光伏板的位置转动参数,发出控制指令驱动步进电机模块使双轴机械结构进行转动,使得太阳始终垂直照射
IAR AVR C语言与汇编语言混合编程
Features
• Passing Variables Between C and Assembly Code Functions
• Calling Assembly Code Functions from C
• Calling C Functions from Assembly Code
• Writing Interrupt Functions in Assembly Code
Satellite and Terrestrial Radio Positioning
Reliable and accurate positioning and navigation is critical for a diverse set of emerging applications<br />
calling for advanced signal-processing techniques. This book provides an overview of some
Learn how to leverage a key Java technology used to access relational data from Java programs, in
Learn how to leverage a key Java technology used to access
relational data from Java programs, in an Oracle environment.
Author Donald Bales begins by teaching you the mysteries of
establishing
As a programming language, C is rather like Pascal or Fortran.. Values are stored in variables. Pro
As a programming language, C is rather like Pascal or Fortran.. Values are stored in variables.
Programs are structured by defining and calling functions. Program flow is controlled using loops, if
return AfxDllCanUnloadNow[] } 当然
return AfxDllCanUnloadNow[]
}
当然,使用DAO SDK提供的dbDAO C++ 类也可以绕过这个问题
如果需要更多MFC和DAO的相关的信息,参考MFC库参考中的技术文章TN054: Calling DAO
Directly While Using MFC
With OpenSSL 0.9.6, a new component has been added to support external crypto devices, for example a
With OpenSSL 0.9.6, a new component has been added to support external crypto devices, for example accelerator cards. The component is called ENGINE, and has still a pretty experimental status and alm
grub for dos ,people can use it in dos for calling linux
grub for dos ,people can use it in dos for calling linux
实现阿克曼函数并统计递归调用次数 Counting times of recursion calling 1. 问题描述 定义阿克曼递归函数: ACK(0,n)=n+1 n>=0
实现阿克曼函数并统计递归调用次数
Counting times of recursion calling
1. 问题描述
定义阿克曼递归函数:
ACK(0,n)=n+1 n>=0
ACK(m,0)=ACK(m-1,1) m>=1
ACK(m,n)=ACK(m-1,ACK(m,n-1)) m,n>0
2. 基本要求
读入m、n,输出ACK(m,n)的值,并统
This function checks the mailbox to see if a message is available. Unlike OSMboxPend(), OSMboxAccep
This function checks the mailbox to see if a message is available. Unlike OSMboxPend(),
OSMboxAccept() does not suspend the calling task if a message is not available.
This routine calls the glpk library to solve a LP/MIP problem. A typical LP problem has following s
This routine calls the glpk library to solve a LP/MIP problem. A typical
LP problem has following structure:
[min|max] C x
s.t.
Ax ["="|"<="|">="
GPS 接收程序 DEMO。 HsGpsDll Library 1.1 A GPS Control/Component for C/C++ HsGpsDll is a Windows Dyn
GPS 接收程序 DEMO。
HsGpsDll Library 1.1
A GPS Control/Component for C/C++
HsGpsDll is a Windows Dynamic Link Library which provides access to any NMEA-183 compliant GPS receiver via a serial communic
This source code is for using CM8880 generator and recognition phone pulses and calling algoritm for
This source code is for using CM8880 generator and recognition phone pulses and calling algoritm for pic 16f877
As science advances, novel experiments are becoming more and more complex, requiring a zoo of contro
As science advances, novel experiments are becoming more and more complex, requiring a zoo of control devices and electronics executing complicated sequences of steps. Device availability and monetary
return AfxDllCanUnloadNow[] } 当然
return AfxDllCanUnloadNow[]
}
当然,使用DAO SDK提供的dbDAO C++ 类也可以绕过这个问题
如果需要更多MFC和DAO的相关的信息,参考MFC库参考中的技术文章TN054: Calling DAO
Directly While Using MFC
1、 了解系统调用fork()、execl()、exit()、getpid()和waitpid()的功能和实现过程 2、 编写一段程序实现以下功能: a) 使用系统调用fork()创建两个子进程
1、 了解系统调用fork()、execl()、exit()、getpid()和waitpid()的功能和实现过程
2、 编写一段程序实现以下功能:
a) 使用系统调用fork()创建两个子进程
b) 父进程重复显示字符串”parent:”,并使用函数getpid()显示自己的进程ID。
c) 两个子进程分别重复显示字符串”child:”,并使用函数getpid()显示自己的进程ID
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