<％@ LANGUAGE="VBSCRIPT" ％> <!--#include file="conn.asp"--> <％ set rs=server.createobject("adodb.recordset") sqltext="select * from RegUser where UserId= " & request.form("uid") & " " rs.open sqltext,co
标签： lt LANGUAGE VBSCRIPT include
上传时间： 2013-12-08
上传用户：yuanyuan123
基于RS-485的单片机多机通信控制系统协议的实现方案
上传时间： 2013-11-29
上传用户：huyiming139
USB source code of Vxworks 5.6. It has device and the host stack.
标签： Vxworks source device stack
上传时间： 2014-01-27
上传用户：dapangxie
The purpose of this application note is to describe the main elements of an RS-422 and RS-485 system. This application note attempts to cover enough technical details so that the system designer will have considered all the important aspects in his data system design. Since both RS-422 and RS- 485 are data transmission systems that use balanced differential signals, it is appropriate to discuss both systems in the same application note. Throughout this application note the generic terms of RS-422 and RS-485 will be used to represent the EIA/TIA-422 and EIA/TIA-485 Standards.
标签： application describe elements purpose
上传时间： 2013-12-29
上传用户：sxdtlqqjl
计算机通信与rs-232接口实用指南\计算机通信与rs-232接口实用指南
上传时间： 2013-11-26
上传用户：qw12
什么是RS-232-C接口？采用RS-232-C接口有何特点？传输电缆长度如何考虑？
上传时间： 2013-12-30
上传用户：远远ssad
This document provides guidelines for integrating a discrete high speed USB host controller onto a fourlayer desktop motherboard. The material covered can be broken into three main categories: Board design guidelines, EMI/ESD guidelines and front panel USB guidelines. Section 1.1 Background provides an explanation of the routing experiments and testing performed to validate the feasibility of 480 Megabits per second on an actual motherboard. Section 7 contains a design checklist that lists each design recommendation described in this document. High speed USB operation is described in the USB 2.0 Specification (http://www.usb.org/developers/docs.html).
标签： integrating controller guidelines document
上传时间： 2013-11-27
上传用户：电子世界
This document provides guidelines for integrating a discrete high speed USB host controller onto a fourlayer desktop motherboard. The material covered can be broken into three main categories: Board design guidelines, EMI/ESD guidelines and front panel USB guidelines. Section 1.1 Background provides an explanation of the routing experiments and testing performed to validate the feasibility of 480 Megabits per second on an actual motherboard. Section 7 contains a design checklist that lists each design recommendation described in this document. High speed USB operation is described in the USB 2.0 Specification (http://www.usb.org/developers/docs.html).
标签： integrating controller guidelines document
上传时间： 2015-11-18
上传用户：xhz1993
AT91RM9200的USB host和USB device的代码ADS1.2. USB-Device测试程序: 因为程序运行在SDRAM中，所以要先初始化SDRAM（可用basic boot程序初始，之后不能复位或断电），再运行此程序，程序运行后连接USB端口，计算机会提示检测到新硬件，安装硬件驱动程序atmusb6119.inf 后计算机会把USB端口虚拟为一个串行的端口使用
标签： USB-Device USB device SDRAM
上传时间： 2013-12-15
上传用户：cazjing
st7920 128*64测试程序sbit RS = P1^0 sbit RW = P1^1 sbit E = P1^2
上传时间： 2014-01-11
上传用户：lanjisu111
