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Serial-Input

  • NCV7356單線CANBUS收發(fā)器數(shù)據手冊

    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.

    標簽: CANBUS 7356 NCV 單線

    上傳時間: 2013-10-24

    上傳用戶:s藍莓汁

  • Arduino應用_Arduino連接超聲波傳感器測距

    超聲波傳感器適用于對大幅的平面進行靜止測距。普通的超聲波傳感器測距范圍大概是 2cm~450cm,分辨率3mm(淘寶賣家說的,筆者測試環(huán)境沒那么好,個人實測比較穩(wěn)定的 距離10cm~2m 左右,超過此距離就經常有偶然不準確的情況發(fā)生了,當然不排除筆者技術 問題。) 測試對象是淘寶上面最便宜的SRF-04 超聲波傳感器,有四個腳:5v 電源腳(Vcc),觸發(fā)控制端(Trig),接收端(Echo),地端(GND) 附:SRF 系列超聲波傳感器參數(shù)比較   模塊工作原理: 采用IO 觸發(fā)測距,給至少10us 的高電平信號; 模塊自動發(fā)送8個40KHz 的方波,自動檢測是否有信號返回; 有信號返回,通過IO 輸出一高電平,高電平持續(xù)的時間就是超聲波從發(fā)射到返回的時間.測試距離=(高電平時間*聲速(340m/s))/2; 電路連接方法   Arduino 程序例子: constintTrigPin = 2; constintEchoPin = 3; floatcm; voidsetup() { Serial.begin(9600); pinMode(TrigPin, OUTPUT); pinMode(EchoPin, INPUT); } voidloop() { digitalWrite(TrigPin, LOW); //低高低電平發(fā)一個短時間脈沖去TrigPin delayMicroseconds(2); digitalWrite(TrigPin, HIGH); delayMicroseconds(10); digitalWrite(TrigPin, LOW); cm = pulseIn(EchoPin, HIGH) / 58.0; //將回波時間換算成cm cm = (int(cm * 100.0)) / 100.0; //保留兩位小數(shù) Serial.print(cm); Serial.print("cm"); Serial.println(); delay(1000); }

    標簽: Arduino 連接 超聲波傳感器

    上傳時間: 2013-10-18

    上傳用戶:星仔

  • 基于CPLD的QDPSK調制解調電路設計

    為了在CDMA系統(tǒng)中更好地應用QDPSK數(shù)字調制方式,在分析四相相對移相(QDPSK)信號調制解調原理的基礎上,設計了一種QDPSK調制解調電路,它包括串并轉換、差分編碼、四相載波產生和選相、相干解調、差分譯碼和并串轉換電路。在MAX+PLUSⅡ軟件平臺上,進行了編譯和波形仿真。綜合后下載到復雜可編程邏輯器件EPM7128SLC84-15中,測試結果表明,調制電路能正確選相,解調電路輸出數(shù)據與QDPSK調制輸入數(shù)據完全一致,達到了預期的設計要求。 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.

    標簽: QDPSK CPLD 調制解調 電路設計

    上傳時間: 2013-10-28

    上傳用戶:jyycc

  • Arduino應用_Arduino連接超聲波傳感器測距

    超聲波傳感器適用于對大幅的平面進行靜止測距。普通的超聲波傳感器測距范圍大概是 2cm~450cm,分辨率3mm(淘寶賣家說的,筆者測試環(huán)境沒那么好,個人實測比較穩(wěn)定的 距離10cm~2m 左右,超過此距離就經常有偶然不準確的情況發(fā)生了,當然不排除筆者技術 問題。) 測試對象是淘寶上面最便宜的SRF-04 超聲波傳感器,有四個腳:5v 電源腳(Vcc),觸發(fā)控制端(Trig),接收端(Echo),地端(GND) 附:SRF 系列超聲波傳感器參數(shù)比較   模塊工作原理: 采用IO 觸發(fā)測距,給至少10us 的高電平信號; 模塊自動發(fā)送8個40KHz 的方波,自動檢測是否有信號返回; 有信號返回,通過IO 輸出一高電平,高電平持續(xù)的時間就是超聲波從發(fā)射到返回的時間.測試距離=(高電平時間*聲速(340m/s))/2; 電路連接方法   Arduino 程序例子: constintTrigPin = 2; constintEchoPin = 3; floatcm; voidsetup() { Serial.begin(9600); pinMode(TrigPin, OUTPUT); pinMode(EchoPin, INPUT); } voidloop() { digitalWrite(TrigPin, LOW); //低高低電平發(fā)一個短時間脈沖去TrigPin delayMicroseconds(2); digitalWrite(TrigPin, HIGH); delayMicroseconds(10); digitalWrite(TrigPin, LOW); cm = pulseIn(EchoPin, HIGH) / 58.0; //將回波時間換算成cm cm = (int(cm * 100.0)) / 100.0; //保留兩位小數(shù) Serial.print(cm); Serial.print("cm"); Serial.println(); delay(1000); }

    標簽: Arduino 連接 超聲波傳感器

    上傳時間: 2013-11-01

    上傳用戶:xiaoyuer

  • Windows Standard Serial Communications Library for Delphi是基于WINDOWS API的串口通訊庫。包括28個函數(shù)以及MODEM控制

    Windows Standard Serial Communications Library for Delphi是基于WINDOWS API的串口通訊庫。包括28個函數(shù)以及MODEM控制,ANSI模擬,ASCII/XMODEM/YMODEM協(xié)議,還有14個例子程序。

    標簽: Communications Standard Windows Library

    上傳時間: 2013-12-25

    上傳用戶:王者A

  • Award BIOS(Basic Input/Output System)(電腦啟動時所必需)的源碼

    Award BIOS(Basic Input/Output System)(電腦啟動時所必需)的源碼

    標簽: Output System Award Basic

    上傳時間: 2014-01-04

    上傳用戶:ecooo

  • MSComm 控件通過串行端口(serial port)傳送和接收數(shù)據,為應用程序提供了串行通訊功能。而且在可視化編程盛行的今天

    MSComm 控件通過串行端口(serial port)傳送和接收數(shù)據,為應用程序提供了串行通訊功能。而且在可視化編程盛行的今天,可以很方便的在Visual Basic(VB)、Visual C++(VC)、Delphi等語言及開發(fā)平臺中應用。

    標簽: MSComm serial port 控件

    上傳時間: 2015-01-10

    上傳用戶: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

    標簽: Positioner Absolute absolute position

    上傳時間: 2015-01-13

    上傳用戶: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 .

    標簽: interrupt-driven Routines buffered written

    上傳時間: 2013-11-27

    上傳用戶:330402686

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

    項目描述: 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是一個串行端口記錄工具。它監(jiān)聽指定的串行端口并記錄所有通過這個端口的兩個方向的數(shù)據。 來源:http://freshmeat.net slsnif是一個串行端口日志工具。它監(jiān)聽特殊的串口,記錄所有通過這具串口的兩個方向的數(shù)據。 類別: Development Status: 5 - Production/StableEnvironment: Console (Text Based)Intended Audience: DevelopersLicense: GNU General Public License (GPL)Operating System: LinuxProgramming Language: CTopic: Communications, Debuggers

    標簽: serial port specified logging

    上傳時間: 2014-01-17

    上傳用戶:許小華

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