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Serial-Input

  • NCV7356单线CANBUS收发器数据手册

    The NCV7356 is a physical layer device for a single wire data linkcapable of operating with various Carrier Sense Multiple Accesswith Collision Resolution (CSMA/CR) protocols such as the BoschController Area Network (CAN) version 2.0. This serial data linknetwork is intended for use in applications where high data rate is notrequired and a lower data rate can achieve cost reductions in both thephysical media components and in the microprocessor and/ordedicated logic devices which use the network.The network shall be able to operate in either the normal data ratemode or a high-speed data download mode for assembly line andservice data transfer operations. The high-speed mode is onlyintended to be operational when the bus is attached to an off-boardservice node. This node shall provide temporary bus electrical loadswhich facilitate higher speed operation. Such temporary loads shouldbe removed when not performing download operations.The bit rate for normal communications is typically 33 kbit/s, forhigh-speed transmissions like described above a typical bit rate of83 kbit/s is recommended. The NCV7356 features undervoltagelockout, timeout for faulty blocked input signals, output blankingtime in case of bus ringing and a very low sleep mode current.

    标签: CANBUS 7356 NCV 单线

    上传时间: 2013-10-24

    上传用户:s蓝莓汁

  • Arduino应用_Arduino连接超声波传感器测距

    超声波传感器适用于对大幅的平面进行静止测距。普通的超声波传感器测距范围大概是 2cm~450cm,分辨率3mm(淘宝卖家说的,笔者测试环境没那么好,个人实测比较稳定的 距离10cm~2m 左右,超过此距离就经常有偶然不准确的情况发生了,当然不排除笔者技术 问题。) 测试对象是淘宝上面最便宜的SRF-04 超声波传感器,有四个脚:5v 电源脚(Vcc),触发控制端(Trig),接收端(Echo),地端(GND) 附:SRF 系列超声波传感器参数比较   模块工作原理: 采用IO 触发测距,给至少10us 的高电平信号; 模块自动发送8个40KHz 的方波,自动检测是否有信号返回; 有信号返回,通过IO 输出一高电平,高电平持续的时间就是超声波从发射到返回的时间.测试距离=(高电平时间*声速(340m/s))/2; 电路连接方法   Arduino 程序例子: constintTrigPin = 2; constintEchoPin = 3; floatcm; voidsetup() { Serial.begin(9600); pinMode(TrigPin, OUTPUT); pinMode(EchoPin, INPUT); } voidloop() { digitalWrite(TrigPin, LOW); //低高低电平发一个短时间脉冲去TrigPin delayMicroseconds(2); digitalWrite(TrigPin, HIGH); delayMicroseconds(10); digitalWrite(TrigPin, LOW); cm = pulseIn(EchoPin, HIGH) / 58.0; //将回波时间换算成cm cm = (int(cm * 100.0)) / 100.0; //保留两位小数 Serial.print(cm); Serial.print("cm"); Serial.println(); delay(1000); }

    标签: Arduino 连接 超声波传感器

    上传时间: 2013-10-18

    上传用户:星仔

  • 基于CPLD的QDPSK调制解调电路设计

    为了在CDMA系统中更好地应用QDPSK数字调制方式,在分析四相相对移相(QDPSK)信号调制解调原理的基础上,设计了一种QDPSK调制解调电路,它包括串并转换、差分编码、四相载波产生和选相、相干解调、差分译码和并串转换电路。在MAX+PLUSⅡ软件平台上,进行了编译和波形仿真。综合后下载到复杂可编程逻辑器件EPM7128SLC84-15中,测试结果表明,调制电路能正确选相,解调电路输出数据与QDPSK调制输入数据完全一致,达到了预期的设计要求。 Abstract:  In order to realize the better application of digital modulation mode QDPSK in the CDMA system, a sort of QDPSK modulation-demodulation circuit was designed based on the analysis of QDPSK signal modulation-demodulation principles. It included serial/parallel conversion circuit, differential encoding circuit, four-phase carrier wave produced and phase chosen circuit, coherent demodulation circuit, difference decoding circuit and parallel/serial conversion circuit. And it was compiled and simulated on the MAX+PLUSⅡ software platform,and downloaded into the CPLD of EPM7128SLC84-15.The test result shows that the modulation circuit can exactly choose the phase,and the output data of the demodulator circuit is the same as the input data of the QDPSK modulate. The circuit achieves the prospective requirement of the design.

    标签: QDPSK CPLD 调制解调 电路设计

    上传时间: 2013-10-28

    上传用户:jyycc

  • Arduino应用_Arduino连接超声波传感器测距

    超声波传感器适用于对大幅的平面进行静止测距。普通的超声波传感器测距范围大概是 2cm~450cm,分辨率3mm(淘宝卖家说的,笔者测试环境没那么好,个人实测比较稳定的 距离10cm~2m 左右,超过此距离就经常有偶然不准确的情况发生了,当然不排除笔者技术 问题。) 测试对象是淘宝上面最便宜的SRF-04 超声波传感器,有四个脚:5v 电源脚(Vcc),触发控制端(Trig),接收端(Echo),地端(GND) 附:SRF 系列超声波传感器参数比较   模块工作原理: 采用IO 触发测距,给至少10us 的高电平信号; 模块自动发送8个40KHz 的方波,自动检测是否有信号返回; 有信号返回,通过IO 输出一高电平,高电平持续的时间就是超声波从发射到返回的时间.测试距离=(高电平时间*声速(340m/s))/2; 电路连接方法   Arduino 程序例子: constintTrigPin = 2; constintEchoPin = 3; floatcm; voidsetup() { Serial.begin(9600); pinMode(TrigPin, OUTPUT); pinMode(EchoPin, INPUT); } voidloop() { digitalWrite(TrigPin, LOW); //低高低电平发一个短时间脉冲去TrigPin delayMicroseconds(2); digitalWrite(TrigPin, HIGH); delayMicroseconds(10); digitalWrite(TrigPin, LOW); cm = pulseIn(EchoPin, HIGH) / 58.0; //将回波时间换算成cm cm = (int(cm * 100.0)) / 100.0; //保留两位小数 Serial.print(cm); Serial.print("cm"); Serial.println(); delay(1000); }

    标签: Arduino 连接 超声波传感器

    上传时间: 2013-11-01

    上传用户:xiaoyuer

  • Windows Standard Serial Communications Library for Delphi是基于WINDOWS API的串口通讯库。包括28个函数以及MODEM控制

    Windows Standard Serial Communications Library for Delphi是基于WINDOWS API的串口通讯库。包括28个函数以及MODEM控制,ANSI模拟,ASCII/XMODEM/YMODEM协议,还有14个例子程序。

    标签: Communications Standard Windows Library

    上传时间: 2013-12-25

    上传用户:王者A

  • Award BIOS(Basic Input/Output System)(电脑启动时所必需)的源码

    Award BIOS(Basic Input/Output System)(电脑启动时所必需)的源码

    标签: Output System Award Basic

    上传时间: 2014-01-04

    上传用户:ecooo

  • MSComm 控件通过串行端口(serial port)传送和接收数据,为应用程序提供了串行通讯功能。而且在可视化编程盛行的今天

    MSComm 控件通过串行端口(serial port)传送和接收数据,为应用程序提供了串行通讯功能。而且在可视化编程盛行的今天,可以很方便的在Visual Basic(VB)、Visual C++(VC)、Delphi等语言及开发平台中应用。

    标签: MSComm serial port 控件

    上传时间: 2015-01-10

    上传用户:Breathe0125

  • 8051 Absolute Encoder Positioner How to connect and drive absolute position encoder with SSI serial

    8051 Absolute Encoder Positioner How to connect and drive absolute position encoder with SSI serial interface. The encoder has been made by Siemens (6FX2001-5FS12). Archive contains: 1) schematic, 2) source in C and Assembler

    标签: Positioner Absolute absolute position

    上传时间: 2015-01-13

    上传用户:6546544

  • 8051 Serial I/O Routines Ring buffered, interrupt-driven UART driver, written in Keil C .

    8051 Serial I/O Routines Ring buffered, interrupt-driven UART driver, written in Keil C .

    标签: interrupt-driven Routines buffered written

    上传时间: 2013-11-27

    上传用户:330402686

  • 项目描述: slsnif is a serial port logging utility. It listens to the specified serial port and logs all

    项目描述: slsnif is a serial port logging utility. It listens to the specified serial port and logs all data going through this port in both directions. Serial line sniffer是一个串行端口记录工具。它监听指定的串行端口并记录所有通过这个端口的两个方向的数据。 来源:http://freshmeat.net slsnif是一个串行端口日志工具。它监听特殊的串口,记录所有通过这具串口的两个方向的数据。 类别: Development Status: 5 - Production/StableEnvironment: Console (Text Based)Intended Audience: DevelopersLicense: GNU General Public License (GPL)Operating System: LinuxProgramming Language: CTopic: Communications, Debuggers

    标签: serial port specified logging

    上传时间: 2014-01-17

    上传用户:许小华