SaeJ1939

SAE J1939 CAN-based application profile for in-vehicle communication in trucks.

The J1939 specification is supposed to replace J1587/J1708.

http://www.can-cia.de/j1939based/ gives an introduction and the sub page http://www.can-cia.org/j1939based/j1939/ explains the set of available SAE documents. A further introduction is given by http://www.vector-group.net/portal/medien/cmc/application_notes/AN-ION-1-3100_Introduction_to_J1939.pdf

Cyrilla Dalstra: J1939 has 3 or 4 approved physical layers currently. DeviceNet is similar to the J1939/11 physical layer (which is the most popular). The John Deere physical layer J1939/12 is not similar at all.

J1939/11 and DeviceNet are both based on ISO 11898 (which typically means using an off-the-shelf transceiver). DeviceNet requires opto-isolation and powering the transceiver from the network. This is not needed for J1939. J1939 is not a plug-n-play bus; also there is no "common power" to draw upon. Also, the device Bit Timing Registers (BTRs) are not typically configured the same.

They don't have the same requirements physically. DeviceNet has three different networks - 125K, 250K, 500K. They have varying bus lengths and drop length totals. In J1939/11, the baud rate is 250Kbps. The bus trunk length is 40m and drops can only be 1m. The number of nodes is limited to 30. The "media" is different as well. J1939 doesn't use any of the connectors or cables that DeviceNet uses. J1939/11 designates a triangular connector or a 9-pin Deutsche connector. The J1939/11 cable is also only 3-wires (CANH, CANL and shield).

http://biosystems.okstate.edu/Home/mstone/hsnet.htm High Speed Networking in Construction and Agricultural Equipment Marvin L. Stone; Department of Biosystems and Agricultural Engineering Oklahoma State University

http://www.can-cia.de/icc/2/dattalo.pdf Society of Automotive Engineers (SAE) Implementation of CAN for Heavy Duty Truck and BusMarket? -- Specification J1939

http://bioen.okstate.edu/home/mstone/papers/Dynadr/dynadr.htm Dynamic Address Configuration in SAE J1939; Marvin L. Stone; Biosystems and Agricultural Engineering; Oklahoma State University

Here you can order the specification

http://www.sae.org/products/j1939.htm

Source Code and Tool Suppliers

• CANCapture - http://www.cancapture.com - Flexible, powerful, and low-cost control of data, supporting J1939, NMEA-2000 and all other protocols. All features including hardware for one low price.
• Vector Informatik http://www.vector-informatik.com/vi_j1939_solutions_en.html Complete solutions for J1939 development Simulation and Development of J1939 Systems. Includes complete tool chains (http://www.vector-informatik.com/vi_j1939_tools_en.html),
• J1939 embedded software components (http://www.vector-informatik.com/vi_canbedded_j1939_en.html)
• PF-Diagnose http://www.pocketfleetdiagnosticsolutions.com/
• IXXAT Automation http://www.ixxat.com/sae_j1939_stack_en.html
• [PDF] J1939 C Library for CAN-Enabled PICmicro Microcontrollers http://ww1.microchip.com/downloads/en/AppNotes/00930a.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/51454a.pdf
• Noregon Systems http://wwww.noregon.com
• Warwick Control http://www.warwickcontrol.com
• Kvaser http://www.kvaser.com/can/hlps/index.htm
• port GmbH? http://www.port.de/3000
• Simma Software (http://www.simmasoftware.com/j1939.html)
• SAE J1939 Simulators (http://www.auelectronics.com/UserManual-SAE-J1939Simulator.htm)
• SAE J1939 Drivers for LabVIEW Applications (http://www.dmcinfo.com/Case-Studies/View/ProjectID/241/SAE-J1939-Controller-Area-Network-CAN-Drivers-for-LabVIEW-Applications.aspx)