String pointers to explore how the pointer work
标签： pointers explore pointer String
上传时间： 2017-06-09
上传用户：lacsx
The Function pointer Tutorials Introduction to C and C++ Function pointers, Callbacks and Functors
标签： Function Introduction Callbacks Tutorials
上传时间： 2014-01-20
上传用户：xjz632
Simulation and Synthesis Techniques for Asynchronous FIFO Design with Asynchronous pointer Comparisons
标签： Asynchronous Simulation Techniques Synthesis
上传时间： 2017-07-18
上传用户：Zxcvbnm
a simple code for using pointer in data structure
标签： structure pointer simple using
上传时间： 2013-12-17
上传用户：myworkpost
This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on both baseboard and add-in card PCB designs. This includes interconnects between PCI Express devices located on the same baseboard (chip-to-chip routing) and interconnects between a PCI Express device located “down” on the baseboard and a device located “up” on an add-in card attached through a connector. This document is intended to cover all major components of the physical interconnect including design guidelines for the PCB traces, vias and AC coupling capacitors, as well as add-in card edge-finger and connector considerations. The intent of the guidelines and examples is to help ensure that good high-speed signal design practices are used and that the timing/jitter and loss/attenuation budgets can also be met from end-to-end across the PCI Express interconnect. However, while general physical guidelines and suggestions are given, they may not necessarily guarantee adequate performance of the interconnect for all layouts and implementations. Therefore, designers should consider modeling and simulation of the interconnect in order to ensure compliance to all applicable specifications. The document is composed of two main sections. The first section provides an overview of general topology and interconnect guidelines. The second section concentrates on physical layout constraints where bulleted items at the beginning of a topic highlight important constraints, while the narrative that follows offers additional insight.
上传时间： 2013-10-15
上传用户：busterman
本文档介绍如何使用PIC单片机编程器开发工具在目标电路板上仿真和调试固件。本手册的内容编排如下 第一章 PIC单片机编程器概述 第二章 入门 第三章 PIC编程器和ICSP 第四章 PICKIT DEBUG EXPRESS 第五章 疑难解答 ......................
上传时间： 2013-10-19
上传用户：sardinescn
遥控器使用方便, 功能多, 目前已广泛应用在电视机、、、空调等各种家用电器中, 且价格便宜, 市上非常容易买到。如果能将遥控器上许多的按键解码出来, 用作单片机系统的输入, 则解决了常规矩阵键盘线路板大、布线复杂、占用口过多的弊病。而且通过使用遥控器, 操作时可实现人与设备的分离, 从而更加方便使用。下面以下编码芯片的遥控器为例,谈谈如何用常用的系统单片机进行遥控的解码。
上传时间： 2013-10-14
上传用户：gxmm
任务1 广告灯电路的制作 任务2 音频控制电路的制作 任务3 继电器控制电路的制作 任务4 程序调试 任务5 程序烧写
上传时间： 2013-10-29
上传用户：ZOULIN58
MSP430和ARM7是两个完全不同体系构架的处理器，因此虽一些在应用上具有共性的问题做个简要比较。 目前在应用中比较普遍关心的是 速度和功耗、 应用范围、内部资源、硬件设计、设计周期、成本考虑
上传时间： 2013-10-21
上传用户：wenwiang
针对目前使用的RS232接口数字化B超键盘存在PC主机启动时不能设置BIOS，提出一种PS2键盘的设计方法。基于W78E052D单片机，采用8通道串行A/D转换器设计了8个TGC电位器信息采集电路，电位器位置信息以键盘扫描码序列形式发送，正交编码器信号通过XC9536XL转换为单片机可接收的中断信号，软件接收到中断信息后等效处理成按键。结果表明，在满足开机可设置BIOS同时，又可实现超声特有功能，不需要专门设计驱动程序，接口简单，成本低。 Abstract: Aiming at the problem of the digital ultrasonic diagnostic imaging system keyboard with RS232 interface currently used couldn?蒺t set the BIOS when the PC boot， this paper proposed a design method of PS2 keyboards. Based on W78E052D microcontroller，designed eight TGC potentiometers information acquisition circuit with 8-channel serial A/D converter， potentiometer position information sent out with keyboard scan code sequentially.The control circuit based on XC9536 CPLD is used for converting the mechanical actions of the encoders into the signals that can be identified by the MCU， software received interrupt information and equivalently treatmented as key. The results show that the BIOS can be set to meet the boot， ultrasound specific functionality can be achieved at the same time， it does not require specially designed driver，the interface is simple and low cost.
上传时间： 2013-10-09
上传用户：asdfasdfd
