DOCSLIB.ORG

CAN-To-Flexray Gateways and Configuration Tools

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
CAN-To-Flexray Gateways and Configuration Tools CAN-to-Flexray gateways Device and confi guration tools lexray and CAN net- Listing bus data traffic toring channels it is possi- power management func- Fworks will coexists in (tracing) ble to compare timing rela- tionality offers configurable the next generation or pas- Graphic and text displays tionships and identify timing sleep, wake-up conditions, senger cars. Flexray orig- of signal values problems. and hold times. The data inally designed for x-by- Interactive sending of GTI has developed a manipulation functionality wire applications gains mar- pre-defined PDUs und gateway, which provides has been extended in or- ket acceptance particular- frames two CAN and two Flexray der to enable the user to ap- ly in driver assistance sys- Statistics on nodes and ports. It is based on the ply a specific manipulation tems. Nevertheless, Flexray messages with the Clus- MPC5554 micro-controller. function several times. Also applications need informa- ter Monitor The gateway is intended to available for TTXConnexion tion already available in ex- Logging messages for be used for diagnostic pur- is the PC tool TTXAnalyze, isting CAN in-vehicle net- later replay or offline poses, generating start-up/ which allows simultaneous works. Therefore, CAN-to- evaluation sync frames, and it can be viewing of traffic, carried on Flexray gateways are nec- Display of cycle multi- used with existing software the various bus systems. essary. Besides deeply em- plexing, in-cycle rep- tools. The Flexray/CAN bedded micro-controller etition and PDUs in the The TTXConnexion by gateway by Ixxat is a with CAN and Flexray inter- analysis windows TTControl is a gateway tool configurable PC application faces, there is also a need Agilent also provides an combining data manipula- allowing Flexray messag- for gateway devices as in- analyzing tool for Flexray tion, on-line viewing, and es and signals to be trans- terface modules for system and CAN. The PC software logging for Flexray and CAN ferred to CAN networks. and network design tools package allows users to op- networks. The gateway pro- Working in both directions as well as for prototyping. erate the VPT1000 (includ- vides bus-termination that this is especially useful for Several companies have ed with MSO7000-Option may be switched on and off. applications, where exist- already launched CAN-to- FR2) gateway by means of The updated version of the ing CAN-based measure- Flexray gateway devices. a graphical user interface. It device is smaller and fea- ment and control technol- Elektrobit has intro- is possible to visualize and tures a space-saving con- ogy has to be integrated duced the EB 61x0 gateway. analyze the received ana- nector concept. The soft- into Flexray environments. It features Flexray and CAN log and digital signals. Bus ware provides an optimized Another use is the integra- interfaces as well as analog statistics are displayed as trigger concept including tion of a Flexray control unit and digital inputs/outputs. It well. With the high-preci- visualization of configured in the CAN in-vehicle net- comes in a rugged housing sion time-stamp all moni- triggers. The gateway’s works. In addition, CAN-to- and is designed as a multi- CAN and Flexray-to-Flexray purpose-hardware. Silver At- data exchange is possible. ena provides a configurable The gateway with configu- gateway module for the bus ration software for the PC systems Flexray, CAN, LIN, and a gateway runtime ap- and Ethernet, which offers plication, which is execut- signal conditioning and the ed on the hardware plat- possibility to include user form. The software on the applications. The module is PC is required to define the available as a single or dou- gateway configuration. After ble gateway. It supports Fi- downloading to the target bex and dbc file formats. It hardware, the gateway ap- also provides an interface plication runs independent- to HIL systems by Dspace. ly of the PC. The gateway Vector offers the CAN- from Ixxat can be used for alyzer. Flexray analyzing residual bus simulation for tool. It analyzes and moni- Flexray and CAN systems. tors different communica- Based on the Fibex de- tion technologies such as scription file normally used Flexray and CAN simulta- for the Flexray bus, code is neously. The basic func- generated for the hardware tions include: Fig. 1: Agilent’s gateway platform used, which trans- 12 CAN Newsletter 1/2010 The PowerView® 750 freely-configurable screens on a 7-inch WVGA ! CAN 2.0B ! SAE J1939 ! CANopen ! NMEA 2000 ! PAL/NTSC video ! RS485 modbus ! USB 2.0 ! Data logging ! IP67 ! -40 to +85°C operation The PowerView 750 display features a fully modular design. Any of the major components can be redesigned and assembled to meet your exact needs. In the U.S. In Europe FW Murphy Frank W. Murphy, Ltd. P.O. Box 470248, Tulsa, OK 74147 USA Swichgage House, Church Rd., Laverstock tel. +1 918 317 4100 fax +1 918 317 4266 Salisbury SP1 1QZ, U.K. email: [email protected] tel. +44 1722 410055 fax +44 1722 410088 www.fwmurphy.com http://www.fwmurphy.com/pv750 email: [email protected] http://www.fwmurphy.co.uk/pv750 0910510 mits the messages required it is possible for the units to for communication with the also start the gateway appli- necessary CRC (cyclic re- cation independently after a dundancy check) check- power-on without a connec- sums and alive-counters tion to the PC. Due to this Device according to the specified stand-alone capability, pre- cycle. This ensures the op- configured units can also erability of the Flexray. be installed in inaccessible The PC-based config- places in the vehicle or test uration software by Ixxat is bench. used to allocate signals on In particular in test sys- the Flexray bus to signals tems for automotive elec- on the CAN network (and tronics, Flexray-to-CAN vice versa) via a graphical gateways are required. Eb- interface. The signals spec- erspaecher has introduced ified in the Fibex bus de- the Flexcard PMC II, which scription file or CANdb can Fig. 2: Ixxat’s Flexray/CAN gateway and software provides Flexrax, CAN, LIN, be selected and allocat- and Ethernet ports. The ed by drag-and-drop. The some of the signals on the tion is stored in the RAM or gateway has been devel- software supports user in- Flexray bus are relevant, so in the flash memory of the oped specifically for hard- puts by suggesting signals that the bandwidth of the hardware platform. After ware-in-the-loop applica- with relevant names. A de- CAN networks is sufficient. a successful download, a tions. The company that scription file is optional for If the available bandwidth is connection to the PC is no offers a broad range of CAN. If no description file exceeded, the user is noti- longer necessary. Flexray interface boards co- is available, the user can fied with a message. After The hardware platform operates with National In- also specify the messag- completed configuration, used for the Flexray to CAN struments (NI) and supports es or signals manually. The the software calculates the gateway is the Flexray CCM the Labview software. Us- tool checks all allocations allocation of the signals and or the FRC-EP150. Both ing the “virtual instrument” for consistency, i.e. the data provides them in the form units from Ixxat have a ro- approach, the user can run length and data type of the of a loadable table. All files bust housing, an extended Labview applications on the input and target signal are of a configuration can be temperature range and a gateway. (hz) compared. In the event of stored in one project and re- wide supply voltage range. www.eberspaecher.com inconsistencies, the user is loaded later for additions or The units are therefore ideal www.elektrobit.com notified of this by means of modifications. With a down- for use in vehicles or in the www.gti-muenchen.de a warning or error message. load dialogue, the neces- rough environment of a test www.home.agilent.com All CAN interfaces provid- sary files and code can be bench. The Flexray/CAN www.ixxat.de ed by the hardware plat- transferred to the hardware gateway configuration can www.silver-atena.com form can be used to trans- platform. The user can de- be stored in the flash mem- www.ttcontrol.com mit signals. Generally, only cide whether the configura- ory of the units. In this way www.vector.com xxat has introduced the Data logger and bus monitor and records continuously ICarcorder, a data log- the data transfer (up to sev- ger for automotive commu- case, an integrated UPS for ables the user to define trig- eral years). Sporadic nega- nication systems, and the up to 10 s of power cut and ger conditions and to set- tive impacts, such as exter- CANobserver, a tool for it has a power consumption up diagnostic tasks. The nal EMC interferences or a physical and logical long- of less than 10 mW in deep bus-configuration is done slowly deteriorating signal term monitoring of CAN net- sleep mode. The wake-up by importing the related bus quality caused by worn plug works. The data logger is is initiated with the first valid description files (CAN dB, connections can be detect- available as Basic or Plus message, which will be re- Fi bex, A2L, ODX, open ed by the physical layer di- version. The Basic version corded also. With the PC- XML). agnosis and logical frame provides six CAN interfaces based software tool, the The bus monitor is monitoring in a timely man- (compliant to ISO 11898-2 data logger can be config- suitable for CANopen and ner.
Load more

Recommended publications
  • Modbus TCP Master (OPC) User's Manual
    Station Automation COM600 3.4 Modbus TCP Master (OPC) User's Manual 1MRS756445 Station Automation COM600 3.4 Issued: 21.12.2007 Version: D/06.11.2009 Modbus TCP Master (OPC) User's Manual Contents: 1. About this manual .................................................................................. 7 1.1. Copyrights ...................................................................................... 7 1.2. Trademarks .................................................................................... 7 1.3. General .......................................................................................... 7 1.4. Document conventions .................................................................. 8 1.5. Use of symbols .............................................................................. 9 1.6. Terminology .................................................................................... 9 1.7. Abbreviations ............................................................................... 11 1.8. Related documents ...................................................................... 12 1.9. Document revisions ..................................................................... 12 2. Introduction ........................................................................................... 13 2.1. Functional overview ..................................................................... 13 2.2. Modbus OPC Server features ...................................................... 14 3. Configuration .......................................................................................
    [Show full text]
  • Internationally Standardized As Part of the Train Communication Network (TCN) Applied in Light Rail Vehicles Including Metros, T
    September 2012 CANopen on track Consist network applications and subsystems Internationally standardized as part of the train communication network (TCN) Applied in light rail vehicles including metros, trams, and commuter trains www.can-cia.org International standard for CANopen in rail vehicles IEC 61375 standards In June 2012, the international electro technical commission (IEC) has en- hanced the existing and well-established standard for train communication X IEC 61375-1 systems (TCN; IEC 61375), by the CANopen Consist Network. IEC 61375-3-3 Electronic railway equipment - Train VSHFLÀHVWKHGDWDFRPPXQLFDWLRQEDVHGRQ&$1RSHQLQVLGHDVLQJOHUDLO communication network vehicle or a consist in which several rail vehicles share the same vehicle bus. (TCN) - Part 1: General In general, the lower communication layers as well as the application layer are IEC 61375-3-3 IEC architecture based on the well-proven standards for CAN (ISO 11898-1/-2) and CANopen (1 7KLVDOORZVRQWKHRQHKDQGSURÀWLQJIURPWKHDYDLODEOH&$1 X IEC 61375-2-1 Electronic railway WRROVRQWKHPDUNHW2QWKHRWKHUKDQGLWLVSRVVLEOHWREHQHÀWIURPWKHEURDG equipment - Train UDQJHRIDYDLODEOH&$1RSHQSURWRFROVWDFNV&$1RSHQFRQÀJXUDWLRQDQG communication network diagnostic tools as well as off-the-shelf devices (see CANopen product guide (TCN) - Part 2-1: Wire train DWZZZFLDSURGXFWJXLGHVRUJ :HOOGHÀQHGFRPPXQLFDWLRQLQWHUIDFHVZLOO bus (WTB) therefore simplify system design and maintenance. X IEC 61375-2-2 ,QDGGLWLRQWRHQKDQFHGORZHUOD\HUGHÀQLWLRQV VXFKDVHJ&$1,GHQ- Electronic railway WLÀHUIRUPDWW\SHRIFRQQHFWRUGHIDXOWELWUDWHHWF
    [Show full text]
  • Modbus Instruction Manual For
    Instruction manual Modbus slave interface for digital Mass Flow / Pressure instruments Doc. no.: 9.17.035AC Date: 28-07-2021 ATTENTION Please read this instruction manual carefully before installing and operating the instrument. Not following the guidelines could result in personal injury and/or damage to the equipment. BRONKHORST® Disclaimer The information in this manual has been reviewed and is believed to be wholly reliable. No responsibility, however, is assumed for inaccuracies. The material in this manual is for information purposes only. Copyright All rights reserved. This documentation is protected by copyright. Subject to technical and optical changes as well as printing errors. The information contained in this document is subject to change at any time without prior notification. Bronkhorst High-Tech B.V. reserves the right to modify or improve its products and modify the contents without being obliged to inform any particular persons or organizations. The device specifications and the contents of the package may deviate from what is stated in this document. Symbols Important information. Discarding this information could cause injuries to people or damage to the Instrument or installation. Helpful information. This information will facilitate the use of this instrument. Additional info available on the internet or from your local sales representative. Warranty Bronkhorst® products are warranted against defects in material and workmanship for a period of three years from the date of shipment, provided they are used in accordance with the ordering specifications and the instructions in this manual and that they are not subjected to abuse, physical damage or contamination. Products that do not operate properly during this period may be repaired or replaced at no charge.
    [Show full text]
  • Benefits of a Standardized Diagnostic Framework
    Benefits of a standardized diagnostic framework Hareesh Prakash Development Engineer The copying, distribution and utilization of this document as well as the communication of its contents to other without expressed authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or ornamental design registration. Agenda DiagnosticsDiagnostics withwith standardsstandards –– Motivation Motivation ODXODX –– ODXplorer ODXplorer MCD-3MCD-3 ServerServer –– samMCD3 samMCD3 serverserver MVCI-D-PDU-APIMVCI-D-PDU-API –– HSX HSX samtecsamtec DiagnosticDiagnostic FrameworkFramework The copying, distribution and utilization of this document as well as the communication of its contents to other without expressed authorization is prohibited. ffenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or ornamental design registration. Diagnostics with Standards Motivation 2000 - 2009 New ACC Stop & Go ALC + Navigation Strategies, Heading Control Night Vision Process, AFS I + II X-AGS 1990 - 1999 Internet Tools, … Telematics Navigation system Online Services CD-Changer Bluetooth Bus system Car Office ACC Adaptive Cruise Control Complexity Local Hazard Warning Complexity 1980 - 1989 Airbags Integrated Safety Systems DSC Dynamic Stability Control Electronic Transmission control Break-By-Wire Adaptive Transmission Control Electronic air conditioning control Steer-By-Wire Anti-roll ASR i-Drive Xenon Lights ABS Fuel cells 1970 - 1979 BMW Assist Telephone LH RDS/TMC 2 Electronic Fuel Injection Seat heating Lane change ssistant Emergency calls Electronic Ignition … Personalization Servotronic Check Control Software Update … Idle speed regulator Force Feedback Pedal Central lock … Costs Source: [2] Hudi; [4] Reichert The copying, distribution and utilization of this document as well as the communication of its contents to other without expressed authorization is prohibited.
    [Show full text]
  • UCC 1 USB-CAN CONVERTER Contents
    Owner’s Manual UCC 1 USB-CAN CONVERTER Contents 1. Description....................................................................................................................... 17 2. Controls and Connections................................................................................................ 18 3. Installation ....................................................................................................................... 19 3.1 Unpacking.................................................................................................................... 19 3.2 Rack-Mounting............................................................................................................ 19 4. Initial Operation............................................................................................................... 20 4.1 PC Connection and CAN Driver Installation .............................................................. 20 4.2 Installing IRIS.............................................................................................................. 20 4.3 CAN-Bus Connection.................................................................................................. 20 4.4 ISOLATED / GROUNDED Switch ............................................................................ 22 5. Monitor Bus..................................................................................................................... 23 6. Technical Information....................................................................................................
    [Show full text]
  • MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1B3
    MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1b3 CONTENTS 1 Introduction ...................................................................................................................... 2 1.1 Scope of this document ........................................................................................... 2 2 Abbreviations ................................................................................................................... 2 3 Context ............................................................................................................................. 3 4 General description .......................................................................................................... 3 4.1 Protocol description ................................................................................................. 3 4.2 Data Encoding ......................................................................................................... 5 4.3 MODBUS Data model .............................................................................................. 6 4.4 MODBUS Addressing model .................................................................................... 7 4.5 Define MODBUS Transaction .................................................................................. 8 5 Function Code Categories .............................................................................................. 10 5.1 Public Function Code Definition ............................................................................. 11
    [Show full text]
  • LK9893 Developed for Product Code LK7629 - CAN Bus Systems and Operation
    Page 1 CAN bus systems and operation Copyright 2009 Matrix Technology Solutions Limited Page 2 Contents CAN bus systems and operation Introduction 3 Overview 5 Building Node A 6 Building Node B 7 Building Node C 8 Building Node D 9 Building the Scan/Fuse Node 10 Wiring It All Up 11 Worksheet 1 - The Startup Routine 12 Worksheet 2 - Seeing the Messages 13 Worksheet 3 - Receiving Messages 15 Worksheet 4 - System Monitoring and ‘Pinging’ 16 Worksheet 5 - System Faults 17 Worksheet 6 - Circuit Faults 19 Worksheet 7 - Fault Diagnosis Using Charts 20 Worksheet 8 - Build Your Own Vehicle! 21 Instructor Guide 22 Scheme of Work 26 Message Code Summary 32 Kvaser Analyser Set Up 33 Programming the MIAC 34 System Graphics 35 About this document: Code: LK9893 Developed for product code LK7629 - CAN bus systems and operation Date Release notes Release version 01 01 2010 First version released LK9893-80-1 revision 1 10 06 2010 MIAC programming notes included LK8392-80-1 revision 2 01 10 2012 Programming notes revised LK9893-80-3 25 09 2013 Warning that some faults require reprogramming LK9893-80-4 22 06 2015 Updated sensing resistors and diagrams LK9893-80-5 13 09 2017 Added to introduction and made less car-specific LK9893-80-6 Copyright 2009 Matrix Technology Solutions Limited Page 3 Introduction CAN bus systems and operation What is this all about? protocol to be used ‘on top’ of the basic CAN The ‘CAN’ in CAN bus stands for ‘Controller Area bus protocol to give additional functionality Network’ and ‘bus’ a bundle of wires.
    [Show full text]
  • Efficiently Triggering, Debugging and Decoding Low-Speed Serial Buses
    Efficiently Triggering, Debugging and Decoding Low-Speed Serial Buses Hello, my name is Jerry Mark, I am a Product Marketing Engineer at Tektronix. The following presentation discusses aspects of embedded design techniques for “Efficiently Triggering, Debugging, and Decoding Low-Speed Serial Buses”. 1 Agenda Introduction – Parallel Interconnects – Transition from Parallel to Serial Buses – High-Speed versus Low-Speed Serial Data Buses Low-Speed Serial Data Buses – Challenges – Technology Reviews – Measurement Solutions Summary 2 In this presentation we will begin by taking a glance at the transition from parallel-to-serial data and the challenges this presents to engineers. Then we will briefly review some of the most widely used low-speed serial buses in industry today and some of their key characteristics. We will turn our attention to the key measurements on these buses. Subsequently, we will present by example how the low-speed serial solution from Tektronix addresses these challenges. 2 Parallel Interconnects Traditional way to connect digital devices used parallel buses Advantages – Simple point-to-point connections – All signals are transmitted in parallel, simultaneously – Easy to capture state of bus (if you have enough channels!) – Decoding the bus is relatively easy Disadvantages – Occupies a lot of circuit board space – All high-speed connections must be the same length – Many connections limit reliability – Connectors may be very large 3 Parallel buses present all of the bits in parallel, as shown in the logic analyzer display. A parallel connection between two ICs can be as simple as point-to-point circuit board traces for each of the data lines. If you can physically probe these lines, it is easy to display the bus state on a logic analyzer or mixed signal oscilloscope.
    [Show full text]
  • Modbus Signal Output Adapter Quick Start Guide
    TM Modbus Signal Output Adapter Quick Start Guide Mini USB Connector Adapter Used to configure adapter settings, provide power to the adapter, and passthrough Overview: communication to the attached sonde. See page 4 for USB passthrough info. Supply Power, 12VDC Provided from external regulated power source (not included). Delivering quality data Modbus I/O Terminal Use either 485 (default) Status LED where and when you or RS-232 terminals. See page 2 for need it most. status indications. Introduction: The 599825 is a communication adapter Safety: for the EXO multiparameter sonde platform. It converts the proprietary Refer to EXO system signal from the water quality sonde into manual for complete safety a Modbus protocol over either RS-232 documentation associated with or RS-485 signals. The adapter simplifies the EXO system. (Available at integration into 3rd party SCADA systems, EXOwater.com) and also features a USB port that Follow all applicable code and supports passthrough communication Magnetic Read Switch directly to the connected sonde. This regulations subject to electrical Used to rediscover feature allows configuration, calibration, wiring and operation of attached sonde. and data transfer without having to the system. disconnect the field cabling. Specifications What’s Included: You’ll also need: Supply Voltage: 9 - 16 VDC or USB 5 VDC Your new 599825 EXO Communication • Flat blade screwdriver for Current Draw Adapter: Adapter comes with: terminal blocks ~20mA typical (@12VDC) • (1) Modbus Adapter • Phillip’s screwdriver
    [Show full text]
  • Fieldbus Communication: Industry Requirements and Future Projection
    MÄLARDALEN UNIVERSITY SCHOOL OF INNOVATION, DESIGN AND ENGINEERING VÄSTERÅS, SWEDEN Thesis for the Degree of Bachelor of Science in Engineering - Computer Network Engineering | 15.0 hp | DVA333 FIELDBUS COMMUNICATION: INDUSTRY REQUIREMENTS AND FUTURE PROJECTION Erik Viking Niklasson [email protected] Examiner: Mats Björkman Mälardalen University, Västerås, Sweden Supervisor: Elisabeth Uhlemann Mälardalen University, Västerås, Sweden 2019-09-04 Erik Viking Niklasson Fieldbus Communication: Industry Requirements and Future Projection Abstract Fieldbuses are defined as a family of communication media specified for industrial applications. They usually interconnect embedded systems. Embedded systems exist everywhere in the modern world, they are included in simple personal technology as well as the most advanced spaceships. They aid in producing a specific task, often with the purpose to generate a greater system functionality. These kinds of implementations put high demands on the communication media. For a medium to be applicable for use in embedded systems, it has to reach certain requirements. Systems in industry practice react on real-time events or depend on consistent timing. All kinds are time sensitive in their way. Failing to complete a task could lead to irritation in slow monitoring tasks, or catastrophic events in failing nuclear reactors. Fieldbuses are optimized for this usage. This thesis aims to research fieldbus theory and connect it to industry practice. Through interviews, requirements put on industry are explored and utilization of specific types of fieldbuses assessed. Based on the interviews, guidelines are put forward into what fieldbus techniques are relevant to study in preparation for future work in the field. A discussion is held, analysing trends in, and synergy between, state of the art and the state of practice.
    [Show full text]
  • Modbus RTU SSW900-CRS485-W
    Motors | Automation | Energy | Transmission & Distribution | Coatings Modbus RTU SSW900-CRS485-W User’s Guide Modbus RTU User’s Guide Series: SSW900 Software version: 1.2X Language: English Document: 10004628707 / 02 Build 5251 Publication Date: 01/2019 Summary of Revisions The information below describes the reviews made in this manual. Version Revision Description V1.0X R00 First edition V1.1X R01 General revision V1.2X R02 General revision Contents CONTENTS ABOUT THE MANUAL ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 6 ABBREVIATIONS AND DEFINITIONS :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 6 NUMERICAL REPRESENTATION ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 6 DOCUMENTS :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 6 1 MAIN CHARACTERISTICS :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 7 2 MODBUS COMMUNICATION INTRODUCTION :::::::::::::::::::::::::::::::::::::::: 8 2.1 MESSAGE STRUCTURE ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 8 2.2 MODBUS RTU ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 9 3 INTERFACE DESCRIPTION::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 11 3.1 RS485 ACCESSORY :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 11 3.2 CONNECTOR ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
    [Show full text]
  • LIN (LOCAL INTERCONNECT NETWORK) SOLUTIONS by Microcontroller Division Applications
    AN1278 APPLICATION NOTE LIN (LOCAL INTERCONNECT NETWORK) SOLUTIONS by Microcontroller Division Applications INTRODUCTION Many mechanical components in the automotive sector have been replaced or are now being replaced by intelligent mechatronical systems. A lot of wires are needed to connect these components. To reduce the amount of wires and to handle communications between these systems, many car manufacturers have created different bus systems that are incompatible with each other. In order to have a standard sub-bus, car manufacturers in Europe have formed a consortium to define a new communications standard for the automotive sector. The new bus, called LIN bus, was invented to be used in simple switching applications like car seats, door locks, sun roofs, rain sensors, mirrors and so on. The LIN bus is a sub-bus system based on a serial communications protocol. The bus is a single master / multiple slave bus that uses a single wire to transmit data. To reduce costs, components can be driven without crystal or ceramic resonators. Time syn- chronization permits the correct transmission and reception of data. The system is based on a UART / SCI hardware interface that is common to most microcontrollers. The bus detects defective nodes in the network. Data checksum and parity check guarantee safety and error detection. As a long-standing partner to the automotive industry, STMicroelectronics offers a complete range of LIN silicon products: slave and master LIN microcontrollers covering the protocol handler part and LIN transceivers for the physical line interface. For a quick start with LIN, STMicroelectronics supports you with LIN software enabling you to rapidly set up your first LIN communication and focus on your specific application requirements.
    [Show full text]