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UM AX032200 Version 1.0 40-46

4. Re-flashing over CAN with Electronic Assistant Bootloader

This chapter describes a procedure of re-programming an application firmware in CANJ1939 in the
field.

4.1. Prerequisites

• A personal computer with a USB port running Windows operating system.

• A flash file for AX032200. It should have the following name: AF-19008-x.xx.bin, where x.xx –

firmware version number, and sss are file comments information purposes.

• Axiomatic Electronic Assistant (EA) software, p/n AX070500.

• Axiomatic CAN Assistant – Scope software, p/n AX070501SCO.

• Axiomatic USB-CAN Converter, p/n AX070501. It should be connected to the USB port of the

personal computer. (Ordered as AX070502 EA KIT)

• Power supply to power the controllers.

• Wire harness to connect the controllers to the power supply and to the CAN port of the

Axiomatic USB-CAN converter with proper termination resistance.

4.2. Re-flashing Procedure

1. Connect the ECU to the power supply and Axiomatic USB-CAN converter.
2. Open CAN port and start monitoring the CAN bus in CAN Assistant

– Scope. Make sure that

the baud rate is set to 250 kBit/s.

3. Power-up the controller.
4. Run the Electronic Assistant (EA) software and connect to the CAN port. The user should see

the following screen:

5. Click on

Bootloader Information

group in the left panel and then double click on

Force

Bootloader to Load on Reset

and another window pops up. Select

to switch to Bootloader

Mode.

Summary of Contents for AX032200

Page 1: ...USER MANUAL UMAX032200 Version 1 0 1 Digital In Ignition 2 Digital Outputs Controller Controller with SAE J1939 USER MANUAL P N AX032200...

Page 2: ...tronic Control Unit from SAE J1939 standard MAP Memory Access Protocol NAK Negative Acknowledgement PDU1 A format for messages that are to be sent to a destination address either specific or global PD...

Page 3: ...NCTION BLOCK 19 1 14 CAN RECEIVE FUNCTION BLOCK 20 2 OVERVIEW OF J1939 FEATURES 22 2 1 INTRODUCTION TO SUPPORTED MESSAGES 22 2 2 J1939 NAME ADDRESS AND SOFTWARE ID 23 2 2 1 J1939 Name 23 2 2 2 ECU Add...

Page 4: ...e the performance of the machine Numerous configurable variables called setpoints have been provided which are accessible using Axiomatic Technologies Electronic Assistant Information about the setpoi...

Page 5: ...UM AX032200 Version 1 0 5 46 Figure 1 Block diagram...

Page 6: ...able 1 6 8 Conditional Logic Block 1 10 9 Set Reset Latch 1 3 10 Digital Output Feedback 1 2 Table 1 Control Sources 1 3 Digital Input Function Blocks The 1 digital input of the controller have signal...

Page 7: ...alue Meaning 0 Normal Logic 1 Inverse Logic 2 Latched Logic 3 Inverse Latched Logic 4 Frequency RPM 5 PWM Duty Cycle Table 4 Digital Input Types By default the Normal Logic type is used for the digita...

Page 8: ...re defined as Xmin Control Input Minimum Ymin Output at Minimum Command Xmax Control Input Maximum Ymax Output at Maximum Command In all cases while X axis has the constraint that Xmin Xmax there is n...

Page 9: ...priority than the Enable Source There are two different Override Responses in which the Override signal can be used These responses are listed in Table 5 where the default value is highlighted Value M...

Page 10: ...le Number is OFF Otherwise the output is commanded to the OFF state Output Type selected In case the Enable Response is Enable When ON Else Keep State the relay output will be commanded according to t...

Page 11: ...tate results the Toggle Frequency which is in milliseconds and by default 0ms 1 4 4 Digital Output Unlatch This source can only be configured if the Output Type is set to Latched Logic or Inverse Latc...

Page 12: ...hey are all related to the data that is sent to the J1939 network as part of the DM1 message Active Diagnostic Trouble Codes A Diagnostic Trouble Code DTC is defined by the J1939 standard as a 4 byte...

Page 13: ...set by any active fault By default every Diagnostic function block has associated with it a proprietary SPN However this setpoint SPN for Event used in DTC is fully configurable by the user should th...

Page 14: ...ircuit 6374 5 Current Below Normal or Open Circuit Output 2 Over Current 6375 6 Current Above Normal or Grounded Circuit Power Supply Undervoltage 168 4 Voltage Below Normal or Shorted to Low Source P...

Page 15: ...ignal goes through function unchanged 1 1 1 2 2 3 3 4 4 0 True when InA equals InB 1 True when InA not equal InB 2 True when InA greater than InB 3 True when InA greater than or equal InB 4 True when...

Page 16: ...option is selected as Table x Condition Y Argument Z Source the argument is interpreted as 0 0 Equal 1 Not Equal 2 Greater Than 3 Greater Than or Equal 4 Less Than 5 Less Than or Equal Table 11 Table...

Page 17: ...ed by minimum and maximum range of the selected input source if the source is a Math Function Block For the fore mentioned sources X Axis data will be redefined when ranges are changed therefore input...

Page 18: ...nt 2 1 True when Argument 1 is not equal to Argument 2 2 True when Argument 1 is greater than Argument 2 3 True when Argument 1 is greater than Argument 2 4 True when Argument 1 is less than Argument...

Page 19: ...l is ON the state of Set Reset Block Output will be OFF To create an ON state in Set Reset Block Output the state of Reset Signal must be OFF while the state of Set Signal is ON In this case the state...

Page 20: ...age will never timeout and will never trigger a Lost Communication event By default all control messages are expected to be sent to the ECU on Proprietary B PGNs However should a PDU1 message be selec...

Page 21: ...UM AX032200 Version 1 0 21 46 Figure 4 CAN Receive Message to Digital Output State...

Page 22: ...65408 00FF80 PropB Receive Default Control Source Data Message 65409 00FF81 PropB Receive Default Control Source Data Message 65410 00FF82 PropB Receive Default Control Source Data Message 65411 00FF...

Page 23: ...ic system Function 127 Axiomatic I O Controller Function Instance 1 AX032200 1 Digital Input Ignition 2 Digital Outputs Controller ECU Instance 0 First Instance Manufacture Code 162 Axiomatic Technolo...

Page 24: ...for any J1939 service tool which supports the PGN SOFT Version PGN 65242 Software Identification SOFT Transmission Repetition Rate On request Data Length Variable Extended Data Page 0 Data Page 0 PDU...

Page 25: ...and Table 18 below will explain these setpoints and their ranges Figure 5 Screen Capture of Default J1939 Network Setpoints Name Range Default Notes ECU Address 0 to 253 128 0x80 Preferred address for...

Page 26: ...down Resistor Drop List 0 Pullup down Off See Table 3 Minimum Range Minimum Range Per Type Maximum Range Maximum Range Per Type Table 19 Default Digital Input Setpoints 3 3 Digital Output Setpoints Th...

Page 27: ...1 Enable Source Drop List Control not Used Refer to Table 1 Enable Number Depends on Source Selected Refer to Table 1 Enable Response Drop List Enable When ON Refer to Table 7 Enable Response Delay Dr...

Page 28: ...36 0 8 0 Units in Volts Overvoltage Threshold 6 0 36 0 24 0 Units in Volts Current Hysteresis 0 5 0 0 25 Units in Amps Frequency Hysteresis 1 10000 0 5 Units in Hz RPM Hysteresis 0 2500 10 Units in RP...

Page 29: ...ble 9 Delay Before Sending DM1 0 84 600 000 1000 Units in milliseconds Delay Before Clearing DM1 0 84 600 000 0 If digital output OFF after this time a DTC will not be sent on a DM1 message anymore Ta...

Page 30: ...on 0 Refer to that section for detailed information on how these setpoints are used The screen capture in Figure 11 displays the available setpoints for each of the Math Blocks The table below the scr...

Page 31: ...0 00 Input 2 Maximum 106 106 10000 00 Input 2 Gain 100 100 100 Input 3 Source Drop List Control not used Refer to Table 1 Input 3 Number Depends on control source 1 Refer to Table 1 Input 3 Minimum 1...

Page 32: ...Refer to that section for detailed information on how these setpoints are used The screen capture in Figure 12 displays the available setpoints for each of the Programmable Logic Blocks The table belo...

Page 33: ...Source Drop List Control Not Used Refer to Table 1 Table 1 Condition 2 Argument 1 Number Depends on control source 1 Refer to Table 1 Table 1 Condition 2 Argument 2 Source Drop List Control Not Used...

Page 34: ...Refer to that section for detailed information on how these setpoints are used The screen capture in Figure 14 displays the available setpoints for each of the Lookup Table Setpoints The table below t...

Page 35: ...3 X Value Depends on the Table number See Section 1 10 Point X4 From Point 2 X Value to Point 4 X Value Depends on the Table number See Section 1 10 Point X5 From Point 3 X Value to Point 5 X Value so...

Page 36: ...t Refer to Table 1 Condition 1 Argument 1 Number Depends on Source Selected 0 Refer to Table 1 Condition 1 Argument 2 Source Drop List Digital Input Refer to Table 1 Condition 1 Argument 2 Number Depe...

Page 37: ...f Set Reset Latch Block Setpoints Name Range Default Notes Block Enabled Drop List False Reset Source Drop List Control Not Used Refer to Table 1 Reset Number Depends on Source Selected 1 Refer to Tab...

Page 38: ...nts Name Range Default Notes PGN 0 65 535 65 280 Refer to Section 1 13 Repetition Rate 0 60 000 1000 Refer to Section 1 13 Message Priority 0 7 6 Refer to Section 1 13 Destination Address PDU1 0 255 2...

Page 39: ...ult changed to True for illustration purposes Refer to Section 1 14 PGN 0 65 535 65280 Refer to Section 1 14 Message Timeout 0 60 000 3000 Refer to Section 1 14 Data Size Drop List Discrete 2 Bit 0 No...

Page 40: ...connected to the USB port of the personal computer Ordered as AX070502 EA KIT Power supply to power the controllers Wire harness to connect the controllers to the power supply and to the CAN port of t...

Page 41: ...on to run the unit in Bootloader Mode If you disconnect and reconnect the CAN connection in EA you will only see the Bootloader ECU 7 Click on the Bootloader Information group again and then on the F...

Page 42: ...he flash file and start flashing operation by pressing the Flash ECU button Make sure Erase All ECU Flash Memory is checked Optionally the user can write their comments in the Flashing Comments field...

Page 43: ...en flashing is done reset the ECU and disconnect and reconnect the CAN connection The new firmware version should now be running on the unit which can be reviewed by selecting Bootloader Information T...

Page 44: ...UM AX032200 Version 1 0 44 46...

Page 45: ...45 46 5 INSTALLATION INSTRUCTIONS Integral TE Deutsch 8 pin receptacle P N DT04 08PA 18 AWG wire is recommended CAN and I O Connector Pin Description 1 CAN_H 2 CAN_L 3 Output GND 4 Input 5 Output 1 6...

Page 46: ...vercurrent protected against shorts to GND or Supply Digital On Off sourcing from power supply or off Load at supply voltage must not draw more than 4A Control Software Software Platform Pre programme...

Page 47: ...UM AX032200 Version 1 0 47 46 VERSION HISTORY Version Date Author Modifications 1 00 December 2021 Viktor Rogachov Initial Document March 28 2022 Amanda Wilkins Marketing Review...

Page 48: ...rders and should verify that such information is current and complete Users should satisfy themselves that the product is suitable for use in the intended application All our products carry a limited...

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