Because the problems we've described are most acute at the servlet, Web services, and general I/ O level, several projects propose to address the issue there. 由于我们讨论的这些问题只要针对servlet、Web服务和一般的I/O级别,因此使用了一些项目来专门解决这些问题。
The I/ O manager does not copy the data, it does not lock the user mode pages in memory, it simply gives the driver the user mode address buffer. 输入输出管理器不会复制数据,但是也不会锁定用户态内存中的页。它只不过将用户态缓冲区的地址交给了驱动。
An I/ O address is a memory storage location for communication between the CPU and different parts of a computer. 一个输入/输出位址是处理器和计算机的不同部份之间的通信的一个存储器储存器位置。
The I/ O Read command is used to read data from an agent mapped in I/ O Address Space. 读命令被用于从被映射到I/O地址空间的一个代理上读数据。
The determination of PLC I/ O counts, the selection of PLC type, I/ O address assignment and I/ O wiring are discussed, and the system program design is also given. 根据X62W铣床继电器控制电路的组成,确定PLC的输入输出点数,并进行PLC型号选择,IO地址分配及IO接线。根据其继电器控制电路的工作原理,进行系统程序设计。
Every computer device requires an input/ output ( I/ O) address. 每部计算机装置需要一个输入/输出(输入/输出)位址。
Hardware design includes equipment selection, I/ O address assigning, exterior input circuit designing, exterior output circuit designing, the joint circuit of sensor etc. Software design includes voltage setting, capacitors monitoring. 硬件设计主要包括装置选型、I/O地址的分配、外部输入电路设计、外部输出电路设计、通讯模块设计以及A/D模块和传感器的连接电路等。
The NAND flash memory is a serial-type device, which utilizes the I/ O pins for both address and data input/ output as well as for command inputs, eases interfacing to microcontrollers. NAND型闪速存储器采用串行结构,I/O端口既作为地址和命令的输入口,又作为数据的输入/输出口,与微控制器的接口简单。
Thirdly, when token packet transmitted, "Remapping Specific I/ O Regions" technique is used to allow user accessing device's base address register directly and avoid the unnecessary expense that would be caught in frequently access kernel. 当传输信令帧时通过I/O域重映射技术,由用户程序直接对网络设备的基地址寄存器进行读写,减少了频繁陷入内核带来的开销。
This article through the research of directly operating the peripheral equipment in the prepositive computer, with inserting assemble language in the senior language, realizes reading and writing the I/ O address. The code is brief and execute rapidly. 针对工业控制上位机中对外部设备直接操作的问题,在高级语言中嵌入汇编语言,实现了直接对I/O地址进行读写操作,代码简捷且执行速度较快。
How to Extend the I/ O Port Address of a PC 一种扩展PC机I/O端口地址的方法
After installation WinDriver, WinDriver wizard can help users select drive types, define I/ O resources and address range, write/ read I/ O port directly, and then, hardware operation is realized. WinDriver安装后,利用开发向导选择设备和驱动程序类型,定义I/O等资源和地址范围,即能完成对I/O的直接读写。
The PLC Command, I/ O address, internal relay resource, the structure of the software, edits modules, memory frame and execution cycle are described in detail. 从规划PLC的控制命令、I/O地址、内部寄存器资源开始展开论述,并结合软件结构,说明了PLC的编辑和存储结构、循环扫描执行等模块。
ISA bus, I/ O port address and memory space allocation are discussed in this paper. The method of interface board designed for user based on ISA bus is introduced in detail, and two examples are given. 本文讨论了ISA总线、IO端口地址和存储器空间分配,详细介绍了在ISA总线基础上设计用户接口板的方法,同时给出了两个具体的例子。
In order to improve I/ O performance and reduce I/ O implementation time, a kind of command combination strategy is used. It combines multiple commands targeted to the same disk driver of the same command type and contiguous operating address. 在磁盘阵列中,为了提高I/O性能,减少I/O执行时间,采取了将分解到同一磁盘上同命令类型且操作数据地址相邻的多I/O命令合并的策略。
The application of gal in I/ o address decode GAL在I/O地址译码中的应用
According to the characteristic of GAL and grammatical regulation of FM assembler language, and connecting with a specific example, this paper discusses the application of GAL in I/ O address decode. 根据GAL的特点及FM汇编浯言的语法规则,结合一个具体实体,论述了GAL在I/O地址译码中的应用。
The device adopts PSD new technology, realizing circuits design more conventional than before, such as I/ O reestablishment, controller address extension, outside chip selection, DSP interruption by logical combination, etc. 装置设计采用单片机现场可编程外围芯片PSD新技术,实现了以往较为复杂的I/O重建、扩展控制器地址空间、外部芯片选择、逻辑组合DSP中断等电路设计。
For the Windows NT device driver of Pioneer-net, Pioneer-net card is a programmable I/ O device, and the device driver uses buffer I/ O mode to copy data between user address space and kernel address space. 在WINDOWSnt操作系统下,本文认为先锋网卡具有可编程I/O设备的特点,并且采用缓冲I/O的方式用于在用户地址空间和内核地址空间之间的数据拷贝。
The Research of Microcomputer I/ O Address Expand in The Data Processing System 数据处理系统中微机I/O地址的扩展技术的研究
It discusses the feature and technical requirement of CNC Snaky Bender. It also discusses in detail all the problems about the type choice of PLC, the configuration of I/ O unit, the distribution of I/ O address, the system software design and communication. 并就CNC蛇形管弯管机的特点和工艺要求,对PLC的选型、I/O单元的配置、输入输出地址的分配以及系统软件的设计和通讯作了详尽的讨论。
The design peripheral circuit of control system and assign I/ O address is completed after configuration input and output module of control system. 3. 配置控制系统的输入输出模块,完成控制系统外围电路设计和分配I/O地址。
The article is based on designing the hardware compositions of carbon-dioxide arc welding of the rear axle of car the proper software which is made by allocating the input and output signal and I/ O address makes the PLC control system work with stability and normal. 在设计了汽车车桥CO2气体保护焊焊接生产线硬件组成的基础上,通过对输入信号和输出信号分配和I/O地址的分配,编写合适的控制软件,使PLC控制系统能够稳定、正常工作。
Finished PLC selection and I/ O address assignment. Programed the system flow chart and diagram and compiling and debugging it. 完成了PLC的选型、I/O地址分配等硬件设计;编制了系统流程图及梯形图,进行了程序的编译及调试。
Through to the PLC basic structure and working principle of the paper, from the system for the requirement of each module of PLC for choosing, and of PLC the I/ O address detailed distribution. 通过对PLC基本结构和工作原理的概述,从该系统的实际需求出发,对PLC的各个模块进行了选取,并对PLC的I/O地址进行了细致的分配。
We had I/ O address assignment, the preparation of the PLC application. Counter at the scene control panel and manual control methods to meet the automatic conversion, an alarm signal display. 进行了I/O地址分配,编制了PLC应用程序,在现场控制柜面板上满足自动控制与手动控制方式的转换,实现报警信号显示。