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GMW 14241-2012.pdf

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    EnI l口.附阳川O佣侃…R盹L [;Ill_~ 1 ~ 1 #1 #1 :)1 Hfiì STANDARDS General Specification GMW14241 GMLAN Device Test Specification for GMLAN High-Speed, Mid-Speed, Low-Speed CAN Bus Nodes Index Index............................................................................................................................................................... 1 1 Introduction................………… ........... .... .……........………………........…………·…..............................................5 1.1 Scope. …………………………………..........................…….............................……….........………....................5 1.2 Mission/Theme ........ ... ... .... ............... ... .................. .... ... ... ..... ...... .... ... ............... ... .... ............... ... ... .........8 1.3 Classification. .…………….......….............................................................................................................8 2 References.……… .......………… ........... .... .……........……………….......………………............. .…….........................8 2.1 External Standards/Specifications. ……........…………………........………………….........……..........................8 2.2 GM Standards/Specifications. ……………….......…………..................………………........…............................8 2.3 Additional References. . .....……........................……………………………………………………........………..........8 3 Test Preparation and Evaluation. ………....................................................................................................9 3.1 Resources. ….... ....…………. ... ...... ...... .... ...….........…….......……………………... .......... .……·…………….........9 3. 1. 1 Calibration ..... .... ... ....... ....... ..……………........………………................………………·………........…...........9 3.1.2 Alternatives........ ……….........…..................………………·………........…….........……… ...........................9 3.1.3 Facilities ............................................……….........……………………………………........……....................9 3.1 .4 Equipment..... .... ... .... ... ....... .... ......……………………………….......………………… ...............9 3.1.5 Test Vehicle/Test Piece ........................ ......................... ..................... ............................................. 9 3. 1.6 Test Time ............. ..............…………... ....………….. ......…..................…………………·……........…...........9 3.1.7 Test Required Information.. ………………………………………..................................................9 3. 1.8 Personnel/Skills .... ....………........……………………..........…·……........……………………........…….............9 3.2 Preparation............ …….......…………………….......…………………… ........................................9 3.3 Conditions.…........……………………........ .….........………… .........…..…….........…………………….........…........9 3.3.1 Environmental Conditions ... ..........…………….......…….................…………...............…·…....................9 3.3.2 Test Conditions.…………….........................………............................……….........................................9 3.4 Instructions ........…………………………….........…·…………………….........…..................................................9 3.5 Data..…….........…·……...............……................……...........................….............….........…….........…........9 3.6 Safety .... ....……............... .... .....……………........……………………..…........……………… ..... .............……........9 3.7 Documentation. …… ..............................................................................................................................9 3.7.1 Test Results ................................…………………….......………………………………·……………………......10 3.7.2 Deviations from Test Procedure .………………………………………………………….... ....….. ...... .…...........10 3.8 Recommended CAN Test Tools. ................................... ....................…….......……...........................10 4 Requirements and Procedure... .......………….....…….........…………….......…………........................….........….. 11 June 2012 。 Copyright 2012 General Motors Company AII Rights Reserved Originating Department: GME Specification Center Page 1 of 171 C叩yrighl General Motors C阴阳ny Provided by IHS unð刷刷cense w协GeneraJ Motors Com.阳呵 No reproduCOOn ()(附加。tkj吨 perm闹剧刷刷。回除捕、se ft，臼n l HS 阳阳 R酷a始
    | GM WORLDWIDE ENGINEERING STANDARDS 4.1 Physical Layer (Dual-Wire High-Speed CAN , GMW3122).................…………………………………... ... ....... 11 4.1.1 CAN Bus Output Voltage Levels. ..................................................... ......................... ... ..................1 1 4. 1.2 Recessive Input Threshold........................…………………………………………………............................13 4. 1.3 Dominant Input Threshold. ........ .........………………………………………·……………. .... ...... ..... .…...........13 4.1 .4 Device Resistance. …………… …………………… ......................................................................15 4.1.5 Device Input Capacitance. .................…..............………................………..............................………..18 4.1.6 Minimum and Maximum Supply Voltage Level for Bus Communication. …..... ............………............20 4.1.7 Behavior duri ng Crank................................................................................................................... 21 4.1.8 Signal Rise/FaJl Ti mes. .... .................…….........…..................……..........…........……........................21 4.1 .9 Signal Characteristics ............. ..................... .............................…........….......….............................24 4.1.10 Bit Ti ming ....................................................................................................................................27 4.1.11 Fault Tolerant Modes...................................................................................................................29 4. 1.1 2 InternaJ Delay ..... ......………………………………….........……….........…….........…………………… ..........34 4.1.13 Communication Enable Line ........................................................................................................35 4.1.14 ESD Protection ...... .... .......……………………........…·…….........…………...............…….......................46 4.2 Physical Layer (Dual-Wire Mid-Speed CAN, GMW3122) ...................................................................... 47 4.2.1 CAN Bus Output Voltage Levels ....................................................................................................47 4.2.2 Recessive Input Threshold.................……………………………………......……………·…........……...........49 4.2.3 Dominant Input Threshold..............................................................................................................50 4.2.4 Device Resistance. ... ... ....... ..…………….........…·……….... ....………………………………........................51 4.2.5 Device Input Capacitance ... ...... ....…..………........………................………........... .... ..... ....…..............54 4.2.6 Minimum and Maximum Supply Voltage Level fo r Bus Communication ..........................................56 4.2.7 Behavior during Crank. ..............…….........……………………….........………·………………………….........57 4.2.8 Signal Rise/Fall Ti mes ...................................................................................................................58 4.2.9 Signal Characteristics ...... ......... ....……….............……………........……………·….................................60 4.2.10 Bit Ti ming …………………………………........………............................................................................63 4.2.11 Fault Tolerant Modes...................................................................................................................65 4.2.12 InternaJ Delay ..............................................................................................................................70 4.2.13 ESD Protection ...........................…………….......……….........……...............…·….............................71 4.3 Physical Layer (Single-Wire CAN, GMW3089) ....... ..................... .....…........…......................................72 4.3.1 Device Unit Load .. .... ... .... ........... ... ...........…………………................……….........……..……................72 4.3.2 Bus Dominant Output Voltage Level ... ...... ....... ... ............... ... ...... ................………..........................73 4.3.3 Bus Recessive or Passive State Low Voltage ..................................….........................................77 4.3.4 Input Threshold.. ... ... ...……................…….........…..................……….........……·……..........................78 4.3.5 Minimum and Maximum Supply Voltage Level for Bus Communication ........…...............................79 4.3.6 Behavior during Crank. ..................... ....………….............................................................................80 4.3.7 Signal Rise/Fall Ti me.....................................................................................................................81 4.3.8 Internal Delay ... .... ....……………………………………........…….........………..........…………………….........83 4.3.9 Signal Characteristics ...... .................….........…........……........................……..................................84 4.3.10 Bit Ti ming ....................................................................................................................................86 June 2012 Page 2 of 171 。 Copyright 2012 General Motors Company AII Rights Reserved C叩yrighl General Motors C阴阳ny Provided by IHS u nð刷刷cense w协GeneraJ Motors Com.阳呵 No reproduCOOn ()(附加。tkj吨 perm闹剧刷刷。回 除捕、se ft，臼n l HS 阳阳 R酷a始
    I GM WORLDWIDE ENGINEERING STANDARDS 4.3.11 Fault Tolerant Modes..……………………………………..............…………………....................................87 4.3.12 ESD Protection ... ... .... ............... ... ... ........ ....... .... ...... .... ........ ... ... ....... ....... ........ ............... ...... .... ...94 4.4 Data Link Layer.…........….......…................…........……..……………………...........................………............94 4.4.1 CAN Protocol Conformance.………….......……………………………………………………………..................94 4.4.2 Extended Format Frame (CAN 2.0B Passive) Compatibility .. ....... ........................................... .......94 4.4.3 Mixed Mode Operation. .......……………………........…………….......………............................................94 4.4.4 Bus Load ....... .... ... ... ....... .... .... .....……………………................………………........…..…………………......95 4.5 Application Interlace........................................................................ ..................................................... 96 4.5.1 Application Message Transmission . .......….........….........….........…….....................……...................96 4.5.2 Application Message Transmission Models.... …….. .....………. ........…………………………...................97 4.5.3 Implementation of Correct Data Length Code (DLC) ...... .... ... ....... ........... .... ..................... ............ 100 4.6 Node Management .. .......... ............... ....... ... .... ........... ... ....... .............. ....... ............... ............... ...... ..... 101 4.6.1 Node Management on LSCAN.. ….........……………………………………….........…………………............101 4.6.1.3 Behavior after a Reset ......... .... ... ... ........ ....... .... ... ... .... ....... .... .... ... ....... .... .... ... ... .... .... .... ... ... ..... 102 4.6.2 Node Management on High-Speed CAN (HSCAN) ......................................................................103 4.6.3 Node Management on MSCAN....…………. ... ..…….. .....………. ...... ...…………………………........……..109 4.6.3.4 Behavior after a Reset ....................... ....................................... .... .................. ... .......................111 4.7 Network Management on Low-Speed CAN ..............................................................….........…………..112 4.7.1 VNMF Content and Timing………………………… ....................................................................112 4.7.2 VN Activation. …………………………………... .....…………….. ................……·…….......… .... ....…….........113 4.7.3 VN Deactivation. …….......……..............................…………….......………........……..…........….........… 127 4.7.4 Node Communication Active Message.........................................................................................128 4.8 Network Management on Mid-Speed CAN .. .... ... ...……………........……….........……………………………… 130 4.8.1 VNMF Content and Timing………………………… ....................................................................130 4.8.2 VN Activation... ....………......……………………........…………….......…………·….........…….......………….132 4.8.3 VN Deactivation. ………………………………………………….......…………………..........…........................143 4.8.4 Node Communication Active Message.........................................................................................144 4.9 Diagnostic Tests (GMW311 0) ....................................... ....................…........……… ......................146 4.9.1 Diagnostic Tests for Low-Speed CAN Bus Nodes ...........……........….........………..........................146 4.9.2 Diagnostic Tests for Mid-Speed CAN Bus Nodes ........ ....... ..............………………….........….......….150 4.9.3 Diagnostic Tests for High-Speed CAN Bus Nodes ............. .....................................………………… 153 4.9.4 Signal Supervision by Device.………….......……………………………….......…….........…….......….........155 4.9.4.1 Signal Supervision by Device - Payload Supervision ...... ..........................................................155 4.9.4.2 Signal Supervision by Device - Validity bits supervision.. ... ....................…….............................156 4.9.4.3 Signal Supervision by Device -Gated signals supervision .. ....... ..............……….................……..156 4.10 Signal Converter Functionality..…….......…………………….........………………….........…..........…............156 4.10.1 Signal Converter Delay Ti mes....................................................................................................156 4.10.2 Signal Supervision through Signal Converters.…………….......…………………………………..............158 5 Provisions for Shipping... ... ....... .................………….......………….........………............................….........…… 162 6 Notes .......................................................................................................................................................162 June 2012 Page 3 of 171 。 Copyright 2012 General Motors Company AII Rights Reserved C叩yrighl General Motors C阴阳ny Provided by IHS unð刷 刷cense w协GeneraJ Motors Com.阳呵 No reproduCOOn ()(附加。tkj吨 perm闹剧刷刷。回 除捕、seft，臼n l HS 阳阳 R酷a始
    I GM WORLDWIDE ENGINEERING STANDARDS 6.1 Glossary . ... .......... .... ... ... .... ....... .... ... .... ... ............... ... ....... .... ....…....... .......… .............…......................162 6.1.1 Conventions .. .... ... ... .... ........... .... ... ............... ... .... .......... ....... .... ... ....... ..... ... ....... ............... ...... ..... 162 6.1.2 Ratings .......................................... ..................... ........……….........…….........................................163 6.1.3 Other .. .... ....... .... ...... ........ ... .... .... ... ... .... .... ... .....……………........…………….........………….........…….163 6.2 Acronyms, Abbreviations, and Symbols. ... ... .... ... ........ .... ...... .... ........…........……·…… ...................163 7 Additional Paragraphs ......………......….............................…........…........…………….........…………...............163 8 Coding System .......................………………..................………·………………………………………………..............163 9 Release and Revisions..............…………................................................................................................163 Appendix A. ....…. ... ... ....... ....……......................….........…….. ...... .….........…….............................…........ .…… 164 A1 Recommended CAN Bit Ti ming Settings for Test Tools ....................... .......................... .......……............1 64 A2 Tips on Testing ...................................................................................................................................... 164 A2.1 Alternative Method for Device Capacitance Measurement.…… .......................................................164 A2.1.1 Test Setup. …….......…………........………………….........……….........…….........….............................164 A2.1.2 Test Pulse ................................... ... .................. ....... .................................................................. 165 A2.2 Testing SWCAN High-Speed Mode With CANoe@......…..................................…......…….........…......165 A2.2.1 How to Set the DUT to High-Speed Mode. ……………………… ...........................................165 A2.2.2 How to Di制 ay the High-Speed Mode Answer With a Standard Oscilloscope ..... ....... .... ........ .... 166 A2.3 Forcing a CAN Node into Bus αf With CANstress@ .... .... ....... .... ... ... .... ... .... .... ... .... .......... ..... ... ... ..... 167 A2.4 Alternative Current Source Schematic. Figure A8 shows schematic of current source ... ............... .... 169 A2.5 Application Schematic for Input Threshold in HVWU Mode..…………….........……................…….........170 Appendix B.............................................................................................……………………………………...........171 B1 Document Structure Overview........…….........……………….........…………………………….............................171 June 2012 Page 4 of 171 。 Copyright 2012 General Motors Company AII Rights Reserved C叩yrighl General Motors C阴阳ny Provided by IHS u nð刷刷cense w协GeneraJ Motors Com.阳呵 No teproduCOOn ()(附加。tkj吨 perm闹剧刷刷。回 除捕、se ft，臼n l HS 阳阳 R酷a始
    I GM WORLDWIDE ENGINEERING STANDARDS 1 Introduction Note: Nothing in this standard supersedes applicable laws and regulations. Note: In the event of conflict between the English and domestic language, the English language sha川 take precedence. Following acronyms and abbreviations are used herein: 1.1 Scope. This general document is a lead for testing High-Speed, Mid-Speed, and Low-Speed GM (In Vehicle) Local Area Network (GMLAN) Controller Area Network (CAN) bus devices. 1.1 . 1 日ectromagnetic Compatibility (EMC) and Electro Magnetic Inte斤erence (EMI) testing is not described in this document, except crank pulse and Electrostatic Discharge (ESD). 1.1.2 For In Vehicle Local Area Network (IVLAN) Mid- and High-Speed CAN bus device tests, refer to the IVLAN Device Test Specification. 1.1.3 The measurement results shall be documented in the separately available GMW14241 Test Result Template (CG261 日 ， all plots included. 1.1.4 Parameters are given as nominal values unless otherwise noted. 1.1.5 AII tests and test methods shall be executed if not otherwise stated 1.1.6 Acronyms. 11 ACK CAN AATmLLSTU n N U N F S UV l 户 u C v L n u O n C u T n u U n C u l n u D n S u L E C D C MMSGMNSV HLEAAU 』 Change Acknowledge Controller Area Network CAN High CAN Low Component Technical Specification Data Identifier Data Length Code Data Link Layer Digital Signal Oscilloscope Diagnostic Trouble Code Device under Test (contains one or more Virtual Device) Electronic Control Unit Electro Magnetic Compatibility Electro Magnetic Inte付erence Electrostatic Discharge Global General Assembly/ Service/Electrical GM (In-Vehicle) Local Area Network Ground High-Speed CAN (Bus) High Level Voltage Wake-up Current Leakage Current Leakage Current - CAN High Leakage Current - CAN Low Input/Output In Vehicle Local Area Network Loca川 nterconnect Network Loss of Ground Low-Speed CAN (Bus) E 』 E 』 NN 内 E 』 n M 户u n M U H M H E · Ileak ILeak CAN H ILeak CAN L 1/0 IVLAN LlN LOG LSCAN June 2012 Page 5 of 171 。 Copyright 2012 General Motors Company AII Rights Reserved C叩yrighl General Motors C阴阳ny Provided by IHS unð刷刷cense w协GeneraJ Motors Com.阳呵 No teproduCOOn ()(附加。tkj吨 perm闹剧刷刷。回 除捕、seft，臼nlHS 阳阳 R酷a始
    | GM WORLDWIDE ENGINEERING STANDARDS MSCAN NOK R1 R2 RBS Rin Rin CAN H Rin CAN L Rin diff Rin H Rin L RTest Rx RxD SG SSTS SWCAN Tamb TambMin TambMax TxD U UBatt v VBA VBatt VCAN VCAN H VCAN L VCM VdiH VdlH45 VDA VN VNMF Mid-Speed CAN (Bus) NotOK Dual-Wire CAN Bus Termination Resistor 1 Dual-Wire CAN Bus Termination Resistor 2 Rest Bus Simulator Internal Resistance Internal Resistance - CAN High Internal Resistance - CAN Low Differential Internal Resistance Internal Resistance - High Internal Resistance - Low Test Resistance Receiver DUT Receive Line Signal Generator Subsystem Technical Specification Single Wire CAN (Bus) Ambient temperature Minimum Ambient Temperature Maximum Ambient Temperature DUT Transmit Une Voltage (Independent) Ba口ery Voltage (Independent) Voltage (Dependent) Virtual Bus Analyzer Battery Voltage (Dependent) Recessive Output Voltage Output Bus Voltage High Output Bus Voltage Low Common Mode Bus Voltage Differential Output Bus Voltage Differential Output Voltage at 45 n Bus Load Virtual Device Availability Virtual Network Virtual Network Management Frame June 2012 Page 6 of 171 。 Copyright 2012 General Motors Company AII Rights Reserved C叩yrighl General Motors C阴阳ny Provided by IHS unð刷刷cense w协GeneraJ Motors Com.阳呵 No teproduCOOn ()(附加。tkj吨 perm闹剧刷刷。回 除捕、seft，臼nlHS 阳阳 R酷a始
    | GM WORLDWIDE ENGINEERING STANDARDS 1.1 .7 Symbols. DUT ~'Vtç. ur咐.r:[.事' 。K i005C:Ope Cun;伤， t Supply P制wer Suppfy Amptlme始r VoIcm.t.r June 2012 Page 7 of 171 。 Copyright 2012 General Motors Company AII Rights Reserved C即yrighl General Moto陌Com阳呵 p'o价由dby lHS un曲f Ilcense wÎlh GeneraJ M。阳帽Company NO l即'oduα阳、。fnetwo，刷吨 ρefmitt回峭thoU\ Itceflse fr，阳n l HS "。‘ lo
    I GM WORLDWIDE ENGINEERING STANDARDS Resistor Capacit or Ground Switch Tip Switch Diode L T l十 - A ) 气 | 本 1.2 Mission厅heme. Not applicable. 1.3 Classification. This specification applies to only GM vehicles using GMLAN CAN Bus devices. ISO 16845 GMW3172 GMW3173 GMW3104 GMW3110 GMW312.2 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ISO 11898-1 2.2 GM Standards/Specifications. GMW3059 GMW3089 GMW3097 2.3 Additional References. • CTS • General Motors Company Cross-Carline GMLAN/CAN Questionnaire • General Motors Company Cross-Carline SeriaJ Data Implementation Specification • General Motors Company Project Specific Serial Data Implementation Specification • GGSE ECU Diagnostic Infrastructure Requirements • GMW14241 Test Result Template (CG2615) • Pr叫 ect Specific Data Dictionary June 2012 Page 8 of 171 。 Copyright 2012 General Motors Company AII Rights Reserved C即yrighl General Moto陌Com阳呵 p'o价由dby lHS un曲f Ilcense wÎlh GeneraJ M。阳帽Company NO l即'oduα阳、 。fnetwo，刷吨 ρefmitt回峭thoU\ Itceflse fr，阳n l HS "。‘ lo
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