String pointers to explore how the pointer work
標簽： pointers explore pointer String
上傳時間： 2017-06-09
上傳用戶：lacsx
The Function pointer Tutorials Introduction to C and C++ Function pointers, Callbacks and Functors
標簽： Function Introduction Callbacks Tutorials
上傳時間： 2014-01-20
上傳用戶：xjz632
Simulation and Synthesis Techniques for Asynchronous FIFO Design with Asynchronous pointer Comparisons
標簽： Asynchronous Simulation Techniques Synthesis
上傳時間： 2017-07-19
上傳用戶：Zxcvbnm
a simple code for using pointer in data structure
標簽： structure pointer simple using
上傳時間： 2013-12-18
上傳用戶：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.
上傳時間： 2013-10-15
上傳用戶：busterman
本文檔介紹如何使用PIC單片機編程器開發工具在目標電路板上仿真和調試固件。本手冊的內容編排如下 第一章 PIC單片機編程器概述 第二章 入門 第三章 PIC編程器和ICSP 第四章 PICKIT DEBUG EXPRESS 第五章 疑難解答 ......................
上傳時間： 2013-10-19
上傳用戶：sardinescn
遙控器使用方便, 功能多, 目前已廣泛應用在電視機、、、空調等各種家用電器中, 且價格便宜, 市上非常容易買到。如果能將遙控器上許多的按鍵解碼出來, 用作單片機系統的輸入, 則解決了常規矩陣鍵盤線路板大、布線復雜、占用口過多的弊病。而且通過使用遙控器, 操作時可實現人與設備的分離, 從而更加方便使用。下面以下編碼芯片的遙控器為例,談談如何用常用的系統單片機進行遙控的解碼。
上傳時間： 2013-10-15
上傳用戶：gxmm
任務1 廣告燈電路的制作 任務2 音頻控制電路的制作 任務3 繼電器控制電路的制作 任務4 程序調試 任務5 程序燒寫
上傳時間： 2013-10-29
上傳用戶：ZOULIN58
MSP430和ARM7是兩個完全不同體系構架的處理器，因此雖一些在應用上具有共性的問題做個簡要比較。 目前在應用中比較普遍關心的是 速度和功耗、 應用范圍、內部資源、硬件設計、設計周期、成本考慮
上傳時間： 2013-10-22
上傳用戶：wenwiang
針對目前使用的RS232接口數字化B超鍵盤存在PC主機啟動時不能設置BIOS，提出一種PS2鍵盤的設計方法。基于W78E052D單片機，采用8通道串行A/D轉換器設計了8個TGC電位器信息采集電路，電位器位置信息以鍵盤掃描碼序列形式發送，正交編碼器信號通過XC9536XL轉換為單片機可接收的中斷信號，軟件接收到中斷信息后等效處理成按鍵。結果表明，在滿足開機可設置BIOS同時，又可實現超聲特有功能，不需要專門設計驅動程序，接口簡單，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.
上傳時間： 2013-10-10
上傳用戶：asdfasdfd
