User`s Manual (PDF 82K). - Advanced Vehicle Technologies, Inc.
Contents
1. ns 12 8 E 13 3 97 1850 VPW ie etai e OHIO AU Re RA REM 13 BLOTS IU INE 13 SRM AVIS EP 13 3 19 sata enda iuuat ue I eo RA ENE 13 E anne ERR a de eS 13 VARI UE A 14 GM SDM AOS 14 3 16 3EIZ VOT 8192 VAR ORA D tire Ree els eL eoe a N E 14 3 17 CUSTOM MODES We EORR OVE ERIS PER REM Is REEE A E 14 3 18 MIGROSECOND CEOGCK tton EN ws tamen mus 14 4 AVT 418 OPERATION rc 16 Z EINDIGATORS4 te Aa An a i til ne dete d rn 16 2 2 ETHERNET te hee eere recorre rr ee eee rre ede ert 16 4 3 VBHICLENETWORKS 5 E ee ete e ERES ERO Ere OE NU 16 5 COMMUNICA TIONS pP 16 DTT PACKEL d Meee 17 5 1 2 Transmit message in tei esent need eee cea et dee eae rende diens 17 5 12 4 Transmit Acknowledgement oer TO EIE RERE URDU 17 5 1 3 Transmit Message Status Byte Definitions ss 18 5 133 Tr sinit message nn eta2. Figure 1 AVT 418 Block Diagram 15 4 AVT 418 Operation The following describes the use of the AVT 418 Multiple Interface It is assumed that e The AVT 418 is properly connected to an external vehicle network and to the control computer e Appropriate communications application software is installed and running on the host computer Communications between the host computer and AVT 418 have been successfully tested as described in Section 2 3 4 1 Indicators The AVT 418 board has two indicator LED s one green and one red The green LED is connected to the 5 VDC supply for the board and provides a quick indication that power is available for normal operation If the green LED should fail to light check the power source from the subject vehicle and check fuse F3 on the AVT 418 board The red LED is a heartbeat indicator The microcontroller toggles the state of the red LED every 62 5 milliseconds during normal operations During FLASH programming mode the red LED will flash on one second intervals If a problem with the microcontroller should occur the red LED will most likely go to a full ON or full OFF state This should be readily apparent and be indicative of an abnormal condition There are two LEDs integral to the Ethernet RJ 45 connector Refer to Section 2 2 for a complete description of those indicators 4 2 Ethernet All communications with the host computer for vehicle network communications i
3. full duplex activity the blink rate is relatively slow Upper right LED Solid amber 100Base T half duplex Blinking amber 100 half duplex activity the blink rate is relatively slow Solid green 100Base T full duplex Blinking green 100 full duplex activity the blink rate is relatively slow 2 3 Communications with the Host Computer Once the hardware connections have been made proper operation of the hardware can be observed On the host computer you will need a binary communications program A free copy of our Hex Terminal software for Win95 98 NT 2000 XP and similar is available for downloading from our web site at http Awww AVT HQ com download htm Turn on the AVT 418 interface unit Observe on the AVT 418 board that the green power LED is lit Observe that the red operations LED is blinking fast Observe that one of the Ethernet LEDs is lit They are located immediately above the RJ 45 Ethernet connector Refer to Section 2 2 for a description of what the LEDs indicate From the communications program request a connection to the AVT 418 The factory default IP address of the AVT 418 is fixed at 192 168 1 70 Communications with the AVT 418 vehicle interface is via port 10001 Ensure the connection completes successfully Send the following command to the AVT 418 This is the unit reset command F1 5 Observe on the computer that the following is received from the int
4. 3 14 Receive message format 5 1 4 1 Received message time stamping 5 1 4 2 Received message example 1 vu Ree e e E LIL REA AIN RIM ERA LE 5 1 5 Received Message Status Byte Definitions ss cesser 19 5 10 More Examples oid ese Sn ee d e e e OR Rh re als Rese 19 5 17 Alternate Header Formats eee ettet iee een eredi edes eode ie eee t s ve dor Rive dee ao 20 5 2 VPW MODE 5 ice eR ER DROITS 21 5 94 WMSMODES e but vus LIE EM 21 2 9 LLPWM Active Node d ERE EAR HI RAE I I RN E 21 5 3 2 PWM Passive Network nnne stet entere inae eset setate nisse s entes ente 22 b Do MA EGOK ALIKE 22 onse DOE t tbt ihe deae 22 5 3 MODE inre e RO Eten ee i en udi pter bin pen uiv eee 23 3 0 UBP MODE eerte ait ete ate itio eene i e tectis 23 5 7 MATCH FUNCTION MESSAGE 22 2 2 24 5 8 STATUS AND ERROR CODES tutte tineis ee tdt uei 24 6 TECHNICAL INFORMATION nccisscccccesssoncesecssvecsescecsescssenessoscsctecesesvestecsendacsbetesnasssendssosesvectssdexsesesendssesssvecsesdexsec
5. The received CRC or checksum is calculated and checked to be equal to the CRC or checksum byte at the end of the received message The received status byte is updated and the entire packet is sent to the host Depending on the mode of operation the received CRC checksum byte is discarded or preserved according to command 52 01 xx VPW and CAN mode the CRC checksum byte is always discarded Some modes of operation enforce format checking rules to the received message even if it was transmitted by the AVT 418 The user should consult the appropriate specifications and related documents for details on the format of messages in specific modes of operation Status of all such tests are indicated in the received status byte 18 5 1 4 1 Received message time stamping All modes of operation support received message time stamping This function is enabled or disabled by the user through the use of the 5x 08 command If time stamps are disabled default setting then the format of a received message is o Header byte s 1 to 3 bytes Depending on the packet size one of the alternate header formats may be used Received status byte 1 byte Message bytes If time stamps are enabled then the format of a received message is 0 Header byte s 1 to 3 bytes Depending on the packet size one of the alternate header formats may be used Time stamp 4 bytes Received status byte 1 byte Message bytes 5 1 4 2
6. not ASCII hex Refer to Section 5 0 for a description of the packetized communications protocol between the AVT 418 and the host computer All communications with the AVT 418 follow the exact same rules and formats as that of the AVT 718 and other AVT interface equipment Refer to our web site for the Master Commands and Responses document Application Engineering notes and Manual Supplements They contain detailed information on communications protocol with the AVT 418 and AVT 718 all commands and expected responses error codes operational examples and much more All documentation can be found at http www AVT HQ com download htm 2 4 4 Telnet Setup Port The configuration of the Ethernet portion of the AVT 418 interface can be changed using Telnet via port 9999 To start a Telnet setup session with the AVT 418 unit perform the following on a Win98 NT XP computer e Start Menu e Run e Type into the command line telnet 192 168 1 70 9999 e Click OK e When the session banner from the AVT 418 is displayed you must hit ENTER within 5 seconds or else the session will time out and disconnect Refer to Appendix A at the end of this document for a listing of a Telnet session with an AVT 418 Factory default settings are shown 2 4 5 Web Page Setup The configuration of the Ethernet portion of the AVT 418 interface can be changed using a web browser The setup screen is an HTML web page To establish a web pag
7. Figure 2 Diagram of JP1 AVT 418 Signal JP1 jumper jumper jumper jumper jumper jumper jumper to pull up resistors on K jumper protected line and UBP LIN line V battery from P3 pin 13 Table 1 Default Configuration of JP1 27 AVT 418 Signal JP1 pin JP1 pin P3 pin jumper jumper jumper jumper jumper jumper jumper to pull up resistors on K jumper line and UBP LIN line Table 2 Complete Description of JP1 6 3 3 Jumper JP2 Jumper JP2 on the AVT 418 board is not installed and is not used Do not use JP2 P2 OOO OO Edge of board Figure 3 Diagram of JP2 6 3 4 Connector P1 Connector exists on the AVT 418 board to support development test and debugging operations It may not be installed Do not connect anything to P1 28 6 3 5 Connector P2 Connector P2 contains all unused microcontroller pins I O ports TPU ports etc It may not be installed Do not connect anything to P2 6 3 6 Connector P3 Connector P3 on the AVT 418 board is a DA 15P connector and will mate to any industry standard DA 15S connector It can be connected to a vehicle OBD II connector through an optional OBD II cable AVT order number 101 002 When the AVT 418 board is installed in the enclosure P3 is labeled VEHICLE NETWORK CAUTION The user should be aware of possible signal conflicts between the AVT 418 and the vehicle J1979 OBD ID connector Damage may r
8. Input Buffer Network to Line On Active Connection On Passive Connection At Time To Disconnect Packing Algorithm Packing Algorithm Idle Time Trailing Characters Send Immediate After Sendchars Sendchar Define 2 Byte Sequence Send Character 01 Send Character 02 Additional Settings Disconnect Mode Check for CTRL D to Disconnect Port Password Telnet Mode Inactivity Timeout Inactivity Timer Port Password Disable Disable Disable Disable Force Transmit 12 ms None Disable Disable 00 00 Ignore DTR Disable Disable Disable Enable 0 0 blank 37 Notes I tried several different versions of web browsers to try and access the web page of the AVT 418 Ethernet server Only one worked Your results may differ It is easy to identify when a browser doesn t work The server configuration page may load but the selection buttons on the left hand side have no affect on the display In my testing only Netscape version 7 0 worked However if I loaded the page left the page and then try to load the page again the load was corrupted It was necessary to completely shutdown Netscape thus closing the Java background task manager before launching Netscape again and logging into the AVT 418 Ethernet server I tried these browsers and they did not work Internet Explorer version 4 0 Internet Explorer version 5 50 Internet Explorer version 6 0 Netscape version 4 7 For my tests the hos
9. Keep Alive message and is used to keep the communications link open or active The Keep Alive message can be changed or disabled by the user 2 Issue the 61 04 command This will shut the K line relay and connect the AVT 418 unit to the network K line Unless changed by the operator using the 53 03 xx yy command the AVT 418 defaults to the K line baud rate of 10 4 kbps Any network traffic will be received by the AVT 418 unit and forwarded to the host computer 5 5 CAN Mode Consult the latest version of the Master Commands and Responses document for detailed information on the commands supported by the AVT 418 while in CAN mode of operation The latest version of the Master Commands and Responses document can be obtained from our web site at http Awww AVT HQ com download htm Operations in CAN mode are quite different than any other mode The user is also referred to the document A Discussion about CAN for detailed information on CAN operations and the construction of packets between the AVT 418 and the host computer Firmware upgrades for both the AVT 418 and AVT 718 are in progress to allow the AVT 418 and AVT 718 to fully handle all ISO 15765 CAN messages 5 6 UBP Mode Consult the latest version of the Master Commands and Responses document for detailed information on the commands supported by the AVT 418 while in UBP mode of operation The latest version of the Master Commands and Responses document
10. Pin l out e Pinz2 TX out e Pin 3 RX in Pin 6 RX in e All other pins are not used 6 4 AVT 418 Enclosure The AVT 418 enclosure is easily opened to permit access to the jumpers on JP1 and fuse F1 To open the enclosure turn it upside down Remove the two recessed screws holding the top and bottom half together Carefully pull the halves apart The end plates will remain attached to the AVT 418 board To reassemble carefully install the AVT 418 board with end plates attached into one half of the enclosure Carefully mate the other enclosure half Install the two screws Do not over tighten 30 7 Company Overview Advanced Vehicle Technologies Inc is dedicated to providing affordable hardware software and technical support to the developers and users of vehicle based networks AVT Inc also offers other vehicle network products including e AVT 718 Multiple Interface supports CAN J1850 VPW PWM KWP2000 UBP LIN and more RS 232 422 unit AVT 931 Dual J1850 Interface PC 104 form factor AVT 715 Dual J1850 Interface RS 232 422 unit AVT 716 Multiple Interface supports J1850 VPW PWM ISO 9141 KWP2000 ALDL CCD RS 232 422 unit e AVT 921 Dual J1850 Interface an 8 bit ISA board AVT 932 Dual J1850 Interface with Ethernet connectivity PC 104 form factor AVT 1850 1 J1850 VPW Development System Consult our web site and or contact the factory for informa
11. Received message example As an example the byte sequence A7 B6 C5 plus CRC or checksum byte appears on the network The message is received by the AVT 418 and the following byte sequence is passed to the host computer 04 00 A7 B6 C5 time stamping is disabled The byte 04 indicates that it is a received message and that four bytes follow The byte 00 is the received message status byte and indicates that no errors were found Received message status byte bit definitions are listed in the next section The message bytes then follow Note that the CRC or checksum byte is stripped off 5 1 5 Received Message Status Byte Definitions The user should consult the Master Commands and Responses guide for the most up to date listing of the bit definitions for the received message status byte for each mode of operation 5 1 6 More Examples To illustrate the construction and decoding of packets between the control computer and the AVT 418 Multiple Interface several examples are provided Example 1 Want to request the current operational mode Command DO The AVT 418 responds with 91 14 The 9 indicates a board status response The 1 indicates one byte follows The 14 indicates UBP mode 19 Example 2 want to send a message out on the bus Command 04 32 89 AC 5F The AVT 418 responds with 01 40 The 0 indicates a received message from the network The 1 indicates only one byte fol
12. beer Recte eben 28 TABLE 1 DEFAULT CONFIGURATION OF JP 1 oo eececcccesssscecssscecessececsenaececseseecsessececsesaececeeeeecessaeeecsesaececseeeesesaeeecseaeeessenaeens 27 TABLE 2 COMPLETE DESCRIPTION ect opem e 28 TABLES CONNECTOR nel aE detected edes fe teet et teet aede ee ets dpa dts 30 1 INTRODUCTION This manual covers the AVT 418 Multiple Protocol Interface unit It provides technical information on using the interface connections to it communications with it and other related information The AVT 418 Multiple Protocol Interface supports the following network protocols CAN Controller Area Network CAN B SO 11519 CAN C ISO 11898 Single Wire CAN SWC SAE J2411 support J1850 VPW GM Class 2 compliant J1850 PWM Ford SCP compliant e Keyword Protocol 2000 ISO 14230 and ISO 9141 With at least 4 different initialization methods e Ford UBP UART Based Protocol e LIN as Master or Slave also passive listener e mode K line Inverted Echo mode A non standard protocol that uses the K line but each transmitted byte is echoed by the recipient inverted GM 8192 UART or ALDL GM specification XDE 5024H this is the 12v version The AVT 418 002 package consists of the AVT 418 Multiple Interface board housed in rugged enclosure An Ethernet patch cord may be available on
13. byte PWM does not have a transmit status byte but the AVT 418 will forward any received acknowledgments to the host computer In UBP mode of operation when a message is transmitted onto the network the AVT 418 will issue receive message report to the host along with a status byte AVT 418 will also issue a separate transmit status report Some operational modes permit the user to enable or disable the function Forward messages from this device When enabled the host receives a complete copy of the message just transmitted with the status bits set accordingly When disabled the host receives just the status byte for example 01 60 Refer to the Master Command and Responses document for detailed information on each specific mode of operation 5 1 3 Transmit Message Status Byte Definitions Refer to the Master Commands and Responses document for exact bit definitions of the status byte that accompanies the transmit acknowledgment 5 1 3 1 Transmit message example The user has set the AVT 418 to VPW mode The user wants to send the following OBD II query 68 6A F1 01 00 The user assembles and sends the following packet to the AVT 418 05 68 6A 1 01 00 After the AVT 418 has transmitted the message onto the network successfully the user receives the following at the host computer 01 60 5 1 4 Receive message format Messages received from the network are assembled into the original byte sequence
14. device and related hardware are located in an electrically isolated section of the AVT 418 board Signals are coupled through optical isolators and power is supplied by an isolated DC DC converter 12 3 8 CAN CAN operations are supported by the Intel 82527 CAN Controller device Board revision B offers three physical layer transceivers selected by software control CAN C ISO 11898 J1939 2 wire CAN The Philips 82C250 transceiver is used e CAN B ISO 11519 2 wire CAN The Philips TJA1054 transceiver is used SWC Single Wire CAN J2411 The Philips AU5790 transceiver is used 3 9 J1850 VPW J1850 VPW operations are supported by the Motorola DLC device MC68HC56 57 58 Additionally the AVT 418 supports full GM Class 2 operations block transfer mode 4X mode etc 3 10 1850 PWM J1850 PWM operations are supported through the use of the Motorola HBCC Hosted Bus Controller Chip device Using this device ensures Ford Motor Company SCP operational compliance The physical layer transceiver is implemented in discrete components in accordance with Ford Motor Company design specifications 3 11 KWP 2000 Key Word Protocol KWP 2000 ISO 14230 is implemented using the second half of the serial communications controller SCC The K line transceiver and the L line transmitter are implemented using an Advanced Vehicle Technologies Inc proprietary design 3 12 UBP Ford s UART Based Protocol UBP is implemented usin
15. exit and reboot It is not recommended that Channel 1 configuration be changed To start a TELNET session From the START menu select run enter this command telnet 192 168 1 70 9999 telnet is the application name 192 168 1 70 is the IP address of the AVT 418 XPort module 9999 is the port the telnet application will connect to As soon as the session starts you have 5 seconds to hit Enter or else the connection will timeout and you will have to start again After you hit Enter The overall configuration of the AVT 418 XPort module will scroll by very quickly You will then get the main menu shown here Change Setup 0 Server 1 Channel 1 3 E mail 5 Expert 6 Security 7 Factory defaults 8 Exit without save 9 Save and exit Your choice If you do not make a selection but instead just hit Enter the AVT 418 XPort module will display the full unit configuration An example listing is below 3 sections down At the menu prompt select 0 and hit Enters 32 You can walk thru the Server settings The recommended and factory settings are shown in parentheses as shown here You should only need to change the IP Address and Netmask settings Hint do not enter leading zeros for the IP address Enter it as 192 168 1 70 IP Address 192 168 001 070 Set Gateway IP Address N N Netmask Number of Bits for Host Part O default 8 Change telnet config password N N At the menu prompt
16. from the control computer There are occasions where packets between the AVT 418 and the host computer are more than 15 bytes in length To support these longer packets two alternate forms have been developed Refer to Section 5 1 7 of this manual and or refer to the document Long Messages Alternate Header Formats 5 1 2 Transmit message format To transmit a message onto the network the message must be built by the host computer and then sent to the AVT 418 The CRC or checksum byte will be automatically calculated and appended onto the message when transmitted In some operational modes this function can be enabled or disabled by software command Any message destined for transmission must be preceded by a byte whose upper nibble is 0 zero and lower nibble is the byte count of the message unless one of the alternate header forms is used The message bytes then follow immediately It is left to the user to determine to know and to understand the messaging strategy used on the vehicle network to which the AVT 418 is attached 5 1 2 1 Transmit Acknowledgment Each time a message transmission is attempted the interface will issue some kind of transmission acknowledgment The type and meaning of this transmission acknowledgment is dependent on the mode of operation For VPW and KWP modes the transmit status byte definition is the same as the receive message status byte 17 CAN mode does not have a transmit status
17. header byte of 11 Alternate format 1 11 xx aa bb 11 header byte xx count of bytes to follow aa bb cc message bytes If the message is more than 255 bytes in length alternate format 2 is available using a header byte of 12 Alternate format 2 12 xx yy aa bb 12 header byte xx count of bytes to follow most significant byte yy count of bytes to follow least significant byte aa bb cc message bytes 20 These formats are backward compatible and may be used as desired For example the host wants to transmit the following message onto the bus 1 B2 04 F6 A7 B8 C9 DA EB FC AD BE The following messages from the host to the AVT 418 are all equivalent The header byte s are bold and underlined for clarity OE A1 B2 C3 D4 E5 F6 A7 B8 C9 DA EB FC AD BE 11 OE A1 B2 C3 D4 E5 F6 A7 B8 C9 DA EB FC AD BE 12 00 OE A1 B2 C3 D4 E5 F6 A7 B8 C9 DA EB FC AD BE 5 2 VPW Mode Consult the latest version of the Master Commands and Responses document for detailed information on the commands supported by the AVT 418 while in VPW mode of operation The latest version of the Master Commands and Responses document can be obtained from our web site at http www AVT HQ com download htm When in VPW mode of operation the interface is always listening to or monitoring the external network All bus traffic is reported to the control computer by the interface Transmit operations occur only when in
18. includes message time stamps and byte and message time intervals in KWP UBP and LIN modes all of which are heavily time dependent for proper operations The clock tick interval is 1 0 microsecond The clock rolls over at 00 FF FF FF The rollover interval is 16 777 216 seconds 14 CAN B Transceiver Data CAN i Routing CAN C Controller Logic Transceiver SWC Transceiver Heart Beat LED red lt UPL UBP transceiver UBP LIN Control and monitor signals 51104 DLC m VPW Interface VPW Bus PWM Bus Microcontroller HBCC PWM PWM Interface Transceiver FIFO 1 K line gt gt Transceiver Re K line FIFO 2 L line Transmitter Relay L line XPort Signal Dual Serial Ethernet g Communications 3d Server polation Controller High Speed Data Link Power Isolated Regulation Transient DC DC Protection Batt Converter Distribution Sig Gnd 1ejnduio2 150 01 Chassis Gnd
19. is used A session can be established with the Ethernet server portion of the AVT 418 interface to change settings such as the Ethernet IP Address In normal use an Ethernet session will be opened with the AVT 418 to communicate with the vehicle network The Ethernet server the AVT 418 is the Lantronix XPort device Detailed information about the XPort device configuration tools and more can be obtained from our office Please contact us to request assistance and tools 2 4 1 Ethernet IP Address The factory default IP address of the AVT 418 is static and is set to 192 168 1 70 The factory default net mask setting 15 255 255 255 0 Some AVT 418 units may leave the factory with a setting of 0 0 0 0 Depending on the particular network environment in which the AVT 418 is being used the setting of the net mask may not be important Rule of thumb if connected to a busy network and the AVT 418 is using static IP addressing set the net mask to 255 255 255 0 2 4 2 Hardware or MAC Address The hardware or MAC address of the AVT 418 can be found on the serial number sticker on the RJ 45 connector on the AVT 418 The RJ 45 connector is actually a Lantronix XPort embedded server device The MAC address will start with 00 20 4 for Lantronix 2 4 3 Vehicle Network Interface Port Communications with the AVT 418 vehicle network interface is via port 10001 All communications with the AVT 418 vehicle interface is in binary bytes
20. messages The AVT 418 will see all network messages including acknowledgments and forward all information to the host computer When in PWM mode Enter network monitor mode by sending the command 83 01 02 16 Exit network monitor mode by sending the command 83 01 02 72 5 3 3 PWM Look Alike There exists a Look Alike mode for PWM operations This mode was developed to allow the AVT 418 to mimic VPW operations while in PWM mode More specifically an OBD II query VPW mode 15 of the form 68 6A Fl xx yy But in PWM mode the same query is of the form 48 6A xx yy Note that the priority type byte is different and the source address byte is missing The response from the AVT 418 in normal PWM mode includes the CRC byte at the end If the AVT 418 is put into PWM mode and Look Alike is enabled the user can treat the AVT 418 as if it were in VPW mode for OBD II queries The AVT 418 will change the 68 byte from the host to 48 the source address byte is stripped out and used to update the HBCC node address and the CRC byte is stripped from the response message Note that the received CRC byte is stripped from the received message when either the CRC byte forwarding is disabled 5x 01 command or when Look Alike mode is enabled 5x 14 command The user should be aware of the interaction between these two commands 5 4 KWP Mode Consult the latest version of the Master Commands and Respons
21. request when the unit is ordered Contact the factory for current information The AVT 418 003 package consists of the AVT 418 Multiple Interface board with mounting brackets An Ethernet patch cord may be available on request when the unit is ordered Contact the factory for current information All product documentation is available from our web site Product Documents page http Awww AVT HQ com download htm Operations in CAN mode are compatible with ISO 11898 J1939 ISO 11512 and other related specifications Operations in J1850 VPW mode conform to specification J1850 and GM Class 2 requirements Operations in J1850 PWM mode conform to specification J1850 and Ford SCP Standard Corporate Protocol requirements Operations in UBP mode conform to Ford Motor Company UBP requirements Operations in LIN mode conform to the LIN specifications The AVT 418 Multiple Interface provides the following functions Isolated electrical interface between the network and the control computer Protocol data conversion between a vehicle based network and the host computer via an Ethernet communications link Active network node Passive network traffic monitor 1 1 Specifications AVT 418 Multiple Interface in enclosure Overall size inches 7 2 x 6 1 x 2 0 Weight 17 oz Operating temperature range 0 to 470 degrees C 12 volts nominal from subject vehicle Input voltage range 9 0 VDC to 30 0 VDC Power diss
22. unique as well Please contact us if you need more information on this mode of operation 3 15 GM SDM AOS This special mode was developed to support the GM SDM AOS mode according to GM specification CM20324 The firmware to support this mode of operation was included in all general releases starting with version 6 6 However the AVT 418 must be modified and the AVT 718 X board installed to provide the necessary hardware A modified unit is usually noted as hardware revision L and has the AVT 718 X board installed Contact the factory for more information about this mode of operation 3 16 GM 12 volt 8192 UART ALDL This mode was developed and included in firmware release 6 2 and later It uses the UBP LIN physical layer The message protocol is the same as other 8192 UART or ALDL implementations such as on the AVT 716 CAUTION This is NOT the same as the old 5 volt 8192 UART or ALDL signal found on the AVT 716 and early model year GM vehicles Damage will likely result to the AVT 418 and or the module or vehicle if the AVT 418 is connected to the wrong system 3 17 Custom Modes There have been other unique modes of operation developed for various customers These are usually only found in specific firmware releases Please contact us if you have a different or unique requirement 3 18 Microsecond Clock The AVT 418 utilizes a free running 24 bit microsecond clock for all time related functions This
23. 418 The latest version of the Commands and Responses document can be obtained from our web site at http www AVT HQ com download htm 24 6 Technical Information 6 1 Reference Documentation Listed here are Specifications and other documentation related to the AVT 418 and the functions which it performs SAE J1850 www sae org SAE J1979 SAE J2411 SAE J1939 ISO 9141 ISO 9141 2 ISO 14230 ISO 11898 ISO 11519 10 LIN www lin subbus org NAAR WN 6 2 Technical Support The user may contact Advanced Vehicle Technologies Inc for assistance in any of the areas covered here When requesting assistance please identify yourself your company the model number of the unit and the serial number Use of e mail is preferred You may also call or send a fax Advanced Vehicle Technologies Inc is located in Maryland and is open from 0800 hrs to 1800 hrs Eastern Time If calling after hours please leave a message and we will return your call as quickly as possible We can be contacted E mail at support AVT HQ com Voice 1 410 798 4038 Fax 1 410 798 4308 6 3 AVT 418 Hardware Information The following sections contain information about the AVT 418 Multiple Interface board Information about the enclosure is contained in Section 6 4 25 6 3 1 Fuse F1 Fuse F1 on the AVT 418 board is a 500 milliamp fast blow fuse designed to protect the AVT 418 in the event of reverse voltage appli
24. 55 255 000 Security SNMP is enabled SNMP Community Name public Telnet Setup is enabled TFTP Download is enabled Port 77FEh is enabled Web Server is enabled ECHO is disabled Enhanced Password is disabled Port 77FOh is enabled Channel 1 Baudrate 230400 I F Mode 4C Flow 02 Port 10001 Remote IP Adr none Port 00000 Connect Mode CO Disconn Mode 00 Flush Mode 00 Expert TCP Keepalive 45s ARP cache timeout 600s High CPU performance disabled Monitor Mode 9 bootup enabled HTTP Port Number 80 SMTP Port Number 25 kkkkkkkkkkkkkkk E mail kkkkkkkkkkkkkkkkk Mail server 0 0 0 0 Unit Domain Recipient 1 Recipient 2 Trigger 1 Serial Sequence 00 00 CP1 X CP2 X CP3 X Message Priority L Min notification interval 1 s 34 Re notification interval 0 s Trigger 2 Serial Sequence 00 00 CP1 X CP2 X CP3 X Message Priority L Min notification interval 1 s Re notification interval 0 s Trigger 3 Serial Sequence 00 00 CP1 X CP2 X CP3 X Message Priority L Min notification interval 1 s Re notification interval 0 5 9 Appendix B A listing of the AVT 418 Ethernet server setup web page factory default settings are provided in this appendix Please see the notes at the end of this Section To log into the AVT 418 Ethernet server to view and or change the configuration use a web browser and enter the following
25. ADVANCED VEHICLE TECHNOLOGIES Inc AVI AVT 418 Multiple Interface Ethernet Unit Users Manual 1509 Manor View Road Davidsonville MD 21035 410 798 4038 voice 410 798 4308 fax www AVT HQ com support AVT HQ com Revision A3 6 June 2006 TABLE OF CONTENTS 1 INTRODUCTION or 4 12 SPECIFICATIONS ree Rr C ETE ETT AE TEE PE RE de sara 5 1 ZAPYBRINELIONS tess PM HE HE 5 2 CONNECTING amp BE Les 6 2 1 VEHICLE NETWORK AND POWER CONNECTION scccssccececsessssecececcesesseaeceeececsesaaececececsessaeeececsesesesuaaecececeeseaaaeeeeeeeeeenees 6 22 ETHERNET iei ec rt re edocet e perte de ey e peto de desc 6 2 3 COMMUNICATIONS WITH THE HOST COMPUTER s scsccccessessssecececeesesssaececececsensaaececececseseaaececececsensaasceceeeeeeseseaeeeeeesenenees 7 24 ETHERNET SETUP oreet rele PEE Oe ar putida 7 24 hFEthernetIP Address o sub Pus tha e RENS 8 2 4 2 Hardware or MAC Address siete deitate Se thighs re ei eee 8 2 4 3 Vehicle Network Interface Port des hs te Ree en edis repe ise eere ieee 8 24 4 Telhet Setup Porti i eU Ree Re ee UE eter t ee Pe De dde PEE Eee 9 2 4 5 DURER Pen E OE PR bep oe ERE RR 9 2 5 ETHERNET IP ADDRESSING MODBEG scsccccscesssssccccsecsceensnsncssccscesssonseuseesceseensceuecseceseensnauecsecscesnsennessecsesesenseesecesces
26. address http 192 168 1 70 the factory default address The first web page to come up is the Port Properties page It is not recommended that changes be made to this page Factory default configuration information for the first three Menu buttons on the left hand side is provided below The buttons are Unit Configuration Server Properties and Port Properties The Unit Configuration page displays unit configuration only No changes can be made from this page If it is necessary to change any operational parameters go to the appropriate page change the parameters and then save them by selecting Update Settings The AVT 418 Ethernet server will save the new parameters and then reboot It takes about 1 minute for the AVT 418 Ethernet server to complete a reboot and return to normal operations with the new parameters in use Unit Configuration Page Select the button Unit Configuration to view current configuration of the AVT 418 Ethernet server No changes are permitted from this page Factory default settings are shown here 35 Server Configuration Product Model Firmware version Hardware Address IP Address Subnet Mask Gateway Address Port Configuration Local Port Number Remote Port Number Serial Port Speed Flow Control Interface Mode Connect Mode Disconnect Mode Flush Mode Pack Control UDP Datagram Type XPort Device Server Ethernet 1 Chan
27. can be obtained from our web site at http www AVT HQ com download htm Operations in UBP mode are very similar to operations in VPW mode 23 Upon entering UBP mode the AVT 418 will monitor for transmitted messages If no transmit activity is sensed within 4 5 seconds the AVT 418 will automatically transmit a Keep Alive message The Keep Alive message can be changed or disabled by the user 5 7 Match Function Message Filtering A coarse filtering mechanism for messages received from the bus is provided by the AVT 418 Interface unit firmware The match function is not applicable to CAN mode of operation If the match table is cleared on power up reset or 31 7B command all messages received from the network are passed to the host When at least one entry is made to the match table all messages received from the network are checked against the match table If a match is found the message is passed to the host If no match is found the message is discarded and the host is not notified A match table entry is made using the 32 xx yy command The xx value is the byte position and the yy value is the byte value This filtering mechanism is more easily explained by example It is desired to receive all messages at the host where the third byte of the message is equal to F1 Send the command 32 03 F1 to the AVT 418 interface To verify the table entry send the command 30 The response will be 42 03 F1 The only
28. cation or a voltage surge significant enough to trip the input transient voltage suppressor The fuse is a Schurter MSF 125 034 4216 Replacement fuses are available from several sources For reference at the time of this writing replacement fuses were available from Allied Electronics order number is 798 0248 DigiKey order number is F863 ND 6 3 2 Jumper JP1 Jumper JP1 is a 22 pin header that permits assignment of signals to the pins of P3 On revision G boards JP1 is now a 24 pin header The additional two pins control the selection of the V Batt source to the and LIN network pull up resistors K lines removing this jumper and then installing a wire jumper wire wrap 30 AWG the user can provide an external or alternate source of power for the network pull up resistors that is separate from the power source to the AVT 418 unit JP1 is numbered such that all odd numbered pins are in one row and all even numbered pins are in the other row A diagram of JP1 is shown in Figure 2 The default configuration for JP1 is the first 9 pin pairs and the last pin pair are jumpered The resulting configuration is shown in Table 1 A detailed listing for all pins of JP1 is provided in Table 2 Refer to the AVT 418 unit block diagram Figure 1 Included on the block diagram are all signal assignments and pin numbers for JP1 and P3 26 Edge of board 996196296 CHO OOO OOO OOOO OO
29. ctrical system It is not recommended that the control computer be connected directly to the vehicle electrical system The AVT 418 Multiple Interface performs the necessary data and protocol conversion functions as well as many other functions that can be enabled or disabled by the user to meet specific application needs 3 2 Overview The hardware is structured around a central microcontroller including on chip peripherals The microcontroller utilizes several off chip peripheral devices FLASH memory RAM FIFO s serial communications controller SCC CAN controller J1850 VPW DLC device J1850 PWM HBCC device and a free running 24 bit microsecond clock Also included in the hardware are transceivers for the various network interfaces These may be unique devices or implementations using discrete components 11 3 3 Microcontroller The heart of the AVT 418 Multiple Interface is the Motorola 68332 microcontroller which contains a CPU32 core The microcontroller contains 2 Kbytes of on board RAM as well as a number of peripheral functions chip select SCI SPI TPU etc The microcontroller runs at a bus speed of 20 972 MHz 3 4 FLASH All operational firmware is contained in a 128 Kbyte FLASH 64 K x 16 device that is socket mounted on the AVT 418 board All firmware on the AVT 418 Multiple Interface was developed by and is supported by Advanced Vehicle Technologies Inc The AVT 418 supports the ability to upgrade operat
30. e numbers used in this manual are hexadecimal digits 0 9 and A and are usually preceded with a dollar sign for clarity 2 Connecting amp Using The following sections provide brief connection instructions to get up and running quickly 2 1 Vehicle Network and Power Connection The bare minimum required to get the AVT 418 up and running is a connection to an external power supply On the Network connector P3 DA 15P connector pin 4 or 5 are ground pin 13 is positive power supply The external power source should be a nominal 12v minimum of 9 0v and maximum of 30 0v Refer to Section 6 3 6 for detailed information of Network connector P3 pin assignments 2 2 Ethernet Connection On the front of the AVT 418 is an RJ 45 Ethernet connector Use an industry standard patch cord to connect the AVT 418 to a 10 100Base T Ethernet hub A crossover patch cord may be used to directly connect the AVT 418 to a host computer The minimum patch cord to use is Cat 5 2 pair connected as transmit data pins 1 and 2 receive data pins 3 and 6 In the upper left and right corners of the RJ 45 connector are two LEDs They indicate Ethernet operation and activity Descriptions of the LEDs follow Upper left LED Solid amber 10Base T half duplex Blinking amber 10 half duplex activity the blink rate is relatively slow Solid green 10Base T full duplex Blinking green 10
31. e session with the Ethernet portion of the AVT 418 interface enter the following into the web browser address line http 192 168 1 70 The setup form will appear The first page is the configuration summary page Select either Server Properties or Port Properties to change the configuration After making changes select Upate Settings The AVT 418 Ethernet server will store the new settings and then reboot Be sure to wait 1 to 2 minutes for the AVT 418 Ethernet server to complete the reboot before attempting to access the unit with the new settings in use Refer to Appendix B at the end of this document for a complete listing of all setup information available when using the AVT 418 Ethernet server configuration web page 2 5 Ethernet IP Addressing Modes Three IP addressing modes are available on the Ethernet portion of the AVT 418 unit e Static e DHCP e ARP 2 5 1 Static IP Addressing The factory default addressing mode for the AVT 418 is static and the address 15 set to 192 168 1 70 In static mode the Ethernet address of the AVT 418 is always the same and does not change when power is cycled 2 5 2 DHCP Addressing Setting the AVT 418 IP address to 0 0 0 0 will enable DHCP Dynamic Host Configuration Protocol function In this mode the AVT 418 will on power up search for a DHCP server If one is found it will obtain its IP address gateway address and subnet mask from the DHCP server If a DHCP ser
32. erface 9112 and 92 04 xx This is the mode of operation report 91 indicates that the message is a board status report with one byte to follow The 12 indicates the interface is up and running at idle awaiting a mode switch command The 92 04 xx is the firmware version report where xx is the firmware version Refer to the Master Commands and Responses document for complete and up to date information Note The AVT Controller software only displays and accepts hex digits no dollar signs spaces required between bytes leading zeros not required If all of this succeeds properly it verifies that the AVT 418 hardware is operational and that an Ethernet connection was completed successfully 2 4 Ethernet Setup The Ethernet server portion of the AVT 418 interface can be reconfigured in the field by the user Basic information is provided here More information is provided in Appendices A and B at the end of this document Use care when changing the configuration It is possible to corrupt the setup such that communications with the AVT 418 will be totally nonfunctional All Ethernet communications with the AVT 418 use TCP IP The factory default device address is listed here as well as the various port numbers depending on the type of communications to be established Note that several different communications sessions are possible with the AVT 418 depending on what is to be accomplished and what port
33. es document for detailed information on the commands supported by the AVT 418 while in KWP mode of operation The latest version of the Master Commands and Responses document can be obtained from our web site at http www AVT HQ com download htm Note Since the AVT 418 supports operations in Keyword Protocol 2000 mode it will support ISO 9141 and ISO 9141 2 operations Operations in KWP mode are slightly different than in VPW mode When first entering KWP mode the AVT 418 is disconnected from the network K line There are two ways to connect to the network 22 1 Conduct a communications initialization with the vehicle The AVT 418 supports all three methods as required by the ISO 14230 specification The three initialization methods are mentioned here Consult the document Keyword Protocol 2000 Initialization for detailed information about each of these initialization sequences A CARB mode initialization This is the mode that should be used for ISO 9141 2 applications such as OBD II operations The command is 61 11 B 5 Baud mode initialization The command is 61 12 C Fast initialization The command is 6x 13 yy zz Note that following successful initialization of the communications link the AVT 418 will monitor for transmitted messages If no transmit activity is sensed within 4 5 seconds the AVT 418 will automatically transmit a Mode 1 PID 0 request this is an OBD II query This is known as the
34. esss 25 6 1 REFERENCE DOCUMENTATION ae he 25 6 2 TECHNICAL SUPPORT teste ete E E iet b tete ete eee 25 6 3 AVT 418 HARDWARE INFORMATION cccssssscesssscecessececsssceceesccecsesaececseseeceesueeecsessececsseecsesaesecsesaesecsesaeesesaesecseaaeees 25 6 34 Fuse FT TEE 26 6 3 2 Jumper JP uidi ic ERO E RUP ER HERREN EN 26 6 3 3 JUMP CHIP casi t eb eat Re p e Dp ter 28 0 32 Connector P baeo OPERE NUR NM 28 6 3 3 Connector P2 seis ec EE 29 6 36 29 037 Ethernet CONNEC CHON GR e ca A US e RE deg 30 04 ANT ATS ENCLOSURE Satie ants il Gath sur dte da ttt SAR Ans ine i Sateen ink 30 Ts COMPANY OVERVIEW sn cbeectcannscstsavadeconaceasseeancessensonacsocawecensassassavsevsescensesacamaceuecsvaceascessossouscbegasscesees 31 8 APPENDIX A scscscsssssseccccesssvtcescevsesssssnsosagsecsasesostobsessendesebssvsnessoncesasssvecsesdecsedsessecnsondsdsnccsecdsudassbesvevesssendsteccsvetessdenseccess 32 9 APPENDIX o REEE A E ETOR EET EAEE ESEE E 35 FIGURE 1 AVT 418 BLOCK DIAGRAM ss e e E RE a EE ERRE ERE 15 FIGURE 2 DIAGRAM OF JPL a a nid est shes td Sai oh A ee eI 27 FIGURE 3 DIAGRAM OF JP2 ecce ev edet
35. esult to either or both the AVT 418 and the vehicle if improper signals are connected The AVT 418 supports more protocols than called out in the OBD II specification SAE 11979 As such the user should exercise extreme caution when connecting the AVT 418 directly to a vehicle Additionally only some of the 16 pins on the OBD II connector are assigned known signals other pins are used by the manufacturer at will There may be signal conflicts that could result in damage to the AVT 418 and or vehicle It is for this reason that JP1 is available on the AVT 418 board the user can change the signal to pin configuration on the AVT 418 to match the vehicle signal pin out on the OBD II connector Refer to Section 6 3 2 for additional information about JP1 Refer to the AVT 418 unit block diagram Figure 1 Included on the block diagram are all signal assignments and pin numbers for JP1 and P3 29 P3 Pin Where to Description OBD II Connector using AVT OBD II cable Em JP1 pin 4 enis 0 0 O ien 0 0 O Ke ES ES O a ee pne TE TS PP PP power input V battery V battery protection circuit me Table 3 Connector P3 6 3 7 Ethernet Connection When the AVT 418 board is installed in the enclosure the RJ 45 jack is labeled ETHERNET With reference to the RJ 45 jack on the AVT 418 board the following pins are used e
36. et server and the vehicle network interface are reset 10 2 6 2 Server Reboot It is possible via Telnet or web browser to command a reboot of the AVT 418 Ethernet server In this case operations of the vehicle network interface are not affected Since the Ethernet server is reboot the TCP IP connection with the AVT 418 is lost and must be reestablished after the reboot is complete 2 6 3 Reset Command When the connected to the vehicle network interface port 10001 the user can send a reset command F1 A5 This command only resets the vehicle network hardware but does not affect the AVT 418 Ethernet server The Ethernet TCP IP connection with port 10001 is not affected by the SF1 A5 reset command 3 Interface Hardware The following sections provide a brief description of the hardware implementation of the AVT 418 A block diagram of the AVT 418 Multiple Interface is shown in Figure 1 Included on the block diagram are all signal assignments and pin numbers for JP1 and P3 3 1 Introduction The AVT 418 provides an isolated electrical interface between the control computer and the connected vehicle network The AVT 418 Interface can be connected directly to a vehicle and derives its operating power from the vehicle The serial interface to the host computer is electrically isolated from the vehicle electrical and electronic systems This is done to prevent damage to the host computer due to spikes or surges from the vehicle ele
37. g the microcontroller internal SCI peripheral The Motorola Based Protocol Physical Layer UPL transceiver SC74935DH 1 used Pull up resistor R51 is factory set for 18 2 Kohms This resistor may be changed as required by the user The UBP firmware was designed to conform to Ford published UBP specifications 3 13 LIN Local Interconnect Network LIN is implemented using the microcontroller internal SCI peripheral The UBP transceiver described above is used True compliance with the LIN specification requires that either an external pull up resistor be used or pull up resistor R51 be changed to meet user requirements The AVT 418 in LIN mode of operations supports both Master and Slave communications on a message by message basis Additionally when not commanded to perform as either a Master or a Slave the AVT 418 passively monitors the network receives all network traffic and forwards it all to the host 13 3 14 KIE K line Inverted Echo KIE mode is a non standard protocol that was developed to meet customer specific requirements This mode uses the K line transceiver portion of the AVT 418 board The operational implementation is firmware only A brief summary of operation of this mode is that one node transmits a message one byte at a time The receiving node echos each received byte inverted The transmitting node does not transmit the next byte until it correctly receives the inverted echo The initialization method is
38. ional firmware in the field without requiring the removal replacement of the FLASH device Firmware routines exists in the FLASH device to permit updating the AVT 418 operational firmware from the host computer via the Ethernet data link without requiring the removal replacement of the FLASH device Contact the factory if you want to update the firmware on your AVT 418 unit We can supply by e mail the firmware file and a program to update the AVT 418 FLASH device We can provide a Win95 98 NT 2000 XP program for the host computer to update the AVT 418 FLASH device 3 5 RAM 8 Kbytes 8 K x 8 of RAM are provided by an external RAM device 3 6 FIFO s Two high speed hardware FIFO s are used by the microcontroller as buffers for transmit and receive data moving between itself and the host computer Each FIFO is 2 KBytes deep One is used for incoming data from the host and the other is used for outbound data to the host 3 7 SCC Serial communications with the host computer is provided by one half of the Philips Serial Communications Controller SCC device The SCC is used to implement the standard serial data link including RTS CTS hardware handshaking The Ethernet server Lantronix XPort device is connected to one channel of the serial communications controller A high speed 230400 baud data link is used for data communications between the vehicle network interface hardware and the Ethernet server device The Ethernet server
39. ipation 3 5 watts nominal AVT 418 Multiple Interface OEM board Overall size board only inches 7 2 x 4 7 x 0 8 Overall size with mounting brackets inches 7 8 x 4 9 x 1 7 Weight 8 oz Operating temperature range 0 to 70 degrees C 12 volts nominal from subject vehicle Input voltage range 9 0 VDC to 30 0 VDC Power dissipation 3 5 watts nominal MTBE Mean Time Between Failure MTBF information has not been discovered for many components used on the AVT 418 Multiple Interface board The known values follow Relays 500 million operations Toggle switch S1 40 000 cycles DC DC converter U32 4 4 million hours DC DC converter U39 1 0 million hours 1 2 Definitions The following terms are used in this manual CAN Controller Area Network CAN C Physical layer name for ISO 11898 compliant hardware interface CAN B Physical layer name for ISO 11519 compliant hardware interface CRC Cyclic Redundancy Check e DLC Data Link Controller Motorola term J1850 VPW e HBCC Hosted Bus Controller Chip Ford device J1850 PWM K line Inverted Echo a non standard protocol KWP Keyword Protocol 2000 ISO 14230 e SCC Serial Communications Controller A dual UART device e SCI Serial Communications Interface Motorola term e SCP Standard Corporate Protocol Ford Motor Company e SWC Single Wire CAN J2411 e UBP UART Based Protocol Ford Motor Company uniqu
40. itiated by the control computer 5 3 PWM Mode Consult the latest version of the Master Commands and Responses document for detailed information on the commands supported by the AVT 418 while in PWM mode of operation The latest version of the Master Commands and Responses document can be obtained from our web site at http www AVT HQ com download htm Operations in PWM mode are quite different than in VPW or UBP modes There are essentially two modes of operation while PWM mode 5 3 1 PWM Active Node One mode is when the AVT 418 is an active node This is the default mode when PWM mode is entered As an active node the AVT 418 is capable of receiving and transmitting network messages Note that only messages destined for the AVT 418 will be received from the network acknowledged to the network and forwarded to the host computer Upon entering PWM mode or resetting the HBCC device the HBCC is set up with node address of F1 for node to node messages and the functional message table is set for OBD II messages 4A 4B 5A 5B These settings can be altered by the user Consult the two documents HBCC Initialization Parameters and Interrupt Register Definitions for more details on how to change the configuration of the HBCC 21 5 3 2 PWM Passive Network Monitor A second mode of operation is network monitor mode In this mode the AVT 418 becomes a passive network node and cannot transmit any network
41. lows The one byte is the received message status byte The 40 is the received message status byte with bit 6 only being set Bit 6 is set This means the received message was from this device meaning the AVT 418 unit Messages transmitted by the AVT 418 are received by the AVT 418 They are checked for errors Unless otherwise configured only the status byte is sent to the host In UBP mode the AVT 418 will also send the transmission acknowledgment 1 20 which indicates that the message was successfully transmitted 5 1 7 Alternate Header Formats There are occasions where packets between the AVT 418 and the host computer are more than 15 bytes in length To support these longer packets two alternate forms have been developed The user may also refer to the document Long Messages Alternate Header Formats To accommodate long messages the format for communications between the AVT 418 unit and the host computer has been modified The host has three methods available for passing a packet to the AVT 418 for transmission onto the vehicle network All three methods are described here along with examples If the message is 15 bytes or less in length total then the normal format may be used Normal Format Ox aa bb cc X count of bytes to follow aa bb message bytes Example 05 81 F1 C1 48 9B If the message is more than 15 bytes but less than 255 bytes in length alternate format 1 is available using a
42. nel V1 50 This is the so called MAC address It is unique to each AVT 418 Ethernet server device 192 168 1 70 0 0 0 0 or 255 255 255 0 0 0 0 0 10001 blank 230400 02 4C CO 00 00 00 Not used Server Properties Page Select the button Server Properties to view and change the AVT 418 Ethernet server properties Factory default settings are shown here Server Properties IP Address Subnet Mask Gateway Address High Performance Telnet Password 192 168 1 70 0 0 0 0 or 255 255 255 0 0 0 0 0 Disable this field may not exist XXXX none assigned Port Properties Page Select the button Port Properties to view and change the AVT 418 Ethernet server communications port properties Factory default settings are shown here It is NOT recommended that changes be made to these parameters Serial Port Settings Serial Protocol Speed Character Size Parity Stopbit RS232 230400 8 None 1 36 Flow Control Connect Mode Settings UDP Datagram Mode UDP Datagram Type Incoming Connection Response Startup Dedicated Connection Remote IP Address Remote Port Local Port CTS RTS Hardware Disable blank Accept unconditional Nothing quiet No Active Connection Startup blank blank 10001 Flush Mode Input Buffer Line to Network On Active Connection Disable On Passive Connection Disable At Time To Disconnect Disable Flush Mode
43. network messages passed to host will now be of the form zz xx F1 Note that at the host the message will be 855 77 xx F1 where rr is the header byte 855 is the received message status byte and the message follows The match table can hold ten entries where an entry consists of a byte position and a byte value The byte position refers to where in the network message the match byte is to be compared The first byte of the message has a byte position value of one Ordering of the match table is not important All table entries are checked until a match is found or the end of the table is encountered If a match table entry specifies a byte position that doesn t exist for the message being checked the message is shorter than the table entry that table entry is not checked Note that the header byte and the received message status byte are not included in the match function nor are these two bytes considered part of the message When in UBP and ISO modes the byte following the header byte is the received message status byte When in PWM mode the byte following the header byte is the message number These bytes are ignored by the match function and are not counted The very next byte is the first byte of the message and has is byte number one of the message 5 8 Status and Error Codes Consult the latest version of the Commands and Responses list for a complete list of Status and Error codes supported by the AVT
44. s via an Ethernet TCP IP connection to port 10001 All data are binary bytes 4 3 Vehicle Networks All communications between the AVT 418 Interface and the external vehicle network were designed to be in conformance with all relevant standards and specifications 5 Communications The structure and protocol of communications between the AVT 418 Multiple Interface and the host computer are stated in the following sections 16 5 1 1 Packet Construction All communications between the AVT 418 and the host computer are accomplished in packets Packets from the host computer to the AVT 418 are known as Commands Packets from the AVT 418 to the host computer are known as Responses All data is transferred in packets The size of each data packet varies depending on the mode of operation For most modes the packet length is from 1 to 16 bytes inclusive but may be as much as 260 bytes in KWP mode and much larger in VPW block transfer mode The first byte in each data packet is called the HEADER BYTE and is used to convey information only between the control computer and the AVT 418 Multiple Interface The header byte is divided into the upper nibble and lower nibble The upper nibble indicates what information the data packet is conveying The lower nibble is the count of the number of bytes that follow the header byte The meaning of the upper nibble of the header byte depends on which direction the data packet is moving whether to or
45. select 1 and hit lt Enter gt You can walk thru the Channel 1 settings The recommended and factory settings are shown in parentheses as shown here We strongly recommend that you use these settings and do not change them Change Setup 0 Server 1 Channel 1 3 E mail 5 Expert 6 Security 7 Factory defaults 8 Exit without save 9 Save and exit Your choice Baudrate 230400 I F Mode 4C Flow 02 Port No 10001 ConnectMode CO Remote IP Address 000 000 000 000 Remote Port 0 DisConnMode 00 FlushMode 00 DisConnTime 00 00 SendChar 1 00 SendChar 2 00 When done changing the IP Address and possibly verifying the Server and Channel 1 settings do not forget to select lt 9 gt from the menu to save the settings When you select lt 9 gt and hit lt Enter gt the AVT 418 XPort will save the configuration and reboot that will terminate the telnet session Wait at least 20 seconds for the AVT 418 XPort unit to finish saving and rebooting before trying to establish a connection to the AVT 418 unit At the menu prompt do not make a selection just hit lt Enter gt The XPort will display the full configuration as shown here 33 Change Setup 0 Server 1 Channel 1 3 E mail 5 Expert 6 Security 7 Factory defaults 8 Exit without save 9 Save and exit Your choice basic parameters Hardware Ethernet IP addr 192 168 1 70 no gateway set netmask 255 2
46. sensee 9 2 35 I Static TP Addressing uoo a oh ene Ue di D e o cam e E Ded ne ce db re xe en 10 225 2 DH GP Addressing o TR que ve qa int AR 10 2 5 3 AutoIP Addressing is ss i t e e e D e e et ee t e Rp b peu dt eo ee Det 10 2 6 959 rcr vive ee Pere er ti dir nn en detente 10 2 6 1 Power On Reset d eei a BS cE ERB LS PERO ic 10 2 0 2 Server ct a aee 11 2 6 3 Reset Commiand cacicagachestacicaddeseesiscesecbecsaseesisceseddodesesesiss 11 3 INTERFACE HARDWARE bisssscessssscsssesseisossecctessnsssesesssnssessesvsnasssensssosdexsetesaoscbecessueteesdsvssscssexesdencesssecdssesdevendsseascvecess 11 3 L INTRODUCTION eret EIU EO IR WERE TRO RR tnt 11 SUA OVERVIEW ep 11 3 3 MICROCONTROELLER cosi pectore Ut oo ees Sake EH Ue bier Oed ee este pte REEF He ees 12 SE BIASE S iie eere eiae tane atti dteva eite dri 12 ne er tornei iate ee et end RSS 12 aise i cece Mitte Nastia M 12 AID
47. t operating system was MS Windows98SE I have not tried any other operating systems 38
48. tion on these products and our latest offerings The engineering staff at AVT Inc is experienced with multiplex bus standards including but not limited to J1850 VPW PWM ISO 9141 ISO 9141 2 Keyword Protocol 2000 ALDL CCD CAN UBP LIN and more A design engineer is available to provide assistance on the use of any of AVT s products AVT engineering staff members are available to provide dedicated engineering support for a customer project Through a simple contractual arrangement a customer is able to tap into AVT s knowledge and experience Information on any of the products or engineering support that Advanced Vehicle Technologies can provide is available by calling faxing or writing Advanced Vehicle Technologies Inc 1509 Manor View Road Davidsonville MD 21035 410 798 4038 voice 410 798 4308 fax Home Page http www AVT HQ com e mail supporta AVT HQ com Revision Record Al Original release A2 Updated Appendix A Updated Appendix B 31 Added GM ALDL note and updated Appendix 8 Appendix A A Telnet listing of the factory default settings for an AVT 418 unit is provided here Select option 0 to change the server settings e Address default 192 168 1 70 e Gateway IP Address not used e Netmask The factory default is 8 host bits 255 255 255 0 Or 32 host bits 0 0 0 0 e Telnet configuration password not used Select option 9 to save the new settings
49. ver is not found the AVT 418 will then switch to AutoIP addressing described in the next section An AVT 418 IP address of 0 0 1 0 enables DHCP addressing and disables AutoIP addressing 2 5 3 AutoIP Addressing is an alternative to DHCP that allows hosts to automatically obtain an IP address in smaller networks that may not have a DHCP server Quoted from Lantronix XPort User Manual revision A 3 03 page 3 4 AutoIP addressing is only enabled if the AVT 418 IP address is set to 0 0 0 0 and no DHCP server is found If on power up the AVT 418 cannot find a DHCP server it will automatically assign itself an AutoIP address range 169 254 0 1 to 169 254 255 1 It will then send out an ARP Address Resolution Protocol request onto the network to see if any other node already has that address If no conflict is found the AVT 418 will use that address until the next power on reset or reboot If an address conflict is found another node is discovered to already have that address then the AVT 418 will select another AutoIP address send out another ARP request The process will continue until it finds an address that is not being used 2 6 Reset Reboot Differences There are three different types of reset used with the AVT 418 There are fundamental differences that the user should be aware of 2 6 1 Power On Reset When the AVT 418 is first powered on the entire unit undergoes a power on reset Both the Ethern
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