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SAE J1939 to Bluetooth Gateway - Android Code (Java) Sample Code
Just as a fair warning upfront, the code that I am referring to in this post is not a finished sample code, but it demonstrates how to receive and decode SAE J1939 message frames (PGNs) from our JCOM Bluetooth device. Please be aware that we provide this code as a courtesy to experienced Android programmers (which [...]
SAE J1939 Data Logger Produces Excel-Compatible Files For Further Processing
Our free-of-charge JCOM1939 Monitor Software for Windows is a complete tool to monitor, analyze, record, and simulate SAE J1939 data traffic. It works in combination with our SAE J1939-USB gateways. The monitor software represents a comprehensive and easy-to-use, easy-to-understand tool that displays not only SAE J1939 data traffic; it also allows scanning the network, simulating an [...]
SAE J1939 Gateway Module With Updated JCOM1939 Monitor Software
The following is an update on the development (firmware plus supporting Windows monitoring tool) of our newest product, the SAE J1939 Gateway Module With USB Port, RTC, MicroSD Memory Card as shown here to the left. The JCOM.J939.USB-X SAE J1939 Processor board is an extended version of our popular JCOM.J9139.USB-B SAE J1939 ECU Simulator Board With USB [...]
ISOBUS Safety-Certified ECU With Three CAN Bus Ports And Automotive Ethernet Interface
TTControl expanded its HY-TTC 500 product family by another safety-certified ECU, the HY-TTC 508 ECU, which satisfies safety requirements according to IEC 61508 SIL2, ISO 13849 PL d and EN ISO 25119 AgPL d.One of the three CAN Bus interfaces is ISOBUS standard compliant. ISOBUS (ISO 11783) is a CAN (Controller Area Network) Higher Layer Protocol based on [...]
SAE J1939 And NMEA 2000 Protocol Stack Kits For Rapid Development And Prototyping
Warwick Control Technologies (UK) announced the release of their SAE-J1939-based protocol stack kits that also support an NMEA 2000 protocol stack according to IEC 61162-3.The company's development kit provides the protocol stack in C source-code, an STM32 prototyping board, a reference design CAN Bus driver for STM32 microcontrollers, the X-Analyser tool, and the Leaf Light USB dongle by Kvaser, [...]
SAE J1939 Communication Profile For Collision Detection And Avoidance Systems
The ISO 21815-2 technical specification, under development by the international ISO standardization body, defines the SAE-J1939-based communication interface for collision detection and avoidance systems. The growing adoption of hazard detection systems and avoidance technology safely supports machine operators in the field of mining and construction. Furthermore, there are demands to set standards for machines and systems able [...]
SAE J1939 Parameter Group Number (PGN) Range
The following is an excerpt from A Comprehensible Guide To J1939 by Wilfried Voss. With the definition of PDU Format (PF) and PDU Specific (PS) – as shown below - J1939 supports a total of 8672 Parameter Group numbers.The Parameter Group Number range is divided into two sections: Specific PGNs for peer-to-peer communication (PDU1 Format) Range: 00hex - EFhex (not including PDU Specific) Number [...]
CAN J1939 Digital Automatic Voltage Regulator
Deep Sea Electronics has introduced its DSEA108 digital automatic voltage regulator with an onboard SAE J1939 port that allows the integration with third-party devices. The DSEA108 regulates the output voltage of an AC alternator that is supplied by a stator auxiliary winding or a shunt system taking power from the output windings. It features higher levels of stability [...]
CAN Bus And SAE J1939 Bus Voltage
CAN Bus MediumAccording to ISO-11898 specification, the CAN bus medium must support two logical states: Recessive and dominant. A CAN controller with its TTL output uses an additional line driver (transceiver) to provide the standard CAN Bus level. The dominant level (TTL = 0V) always overrides a recessive level (TTL = 5V), which is, especially [...]
SAE J1939 Standards Collection - Serial Control And Communications Vehicle Network
The following is an excerpt from A Comprehensible Guide To J1939 by Wilfried Voss. The J1939 Standards Collection was designed to follow the ISO/OSI 7-Layer Reference Model as far as necessary. Each layer is addressed by a corresponding document. The SAE has named documents addressing the transport (4), session (5), and presentation (6) layer in the ISO/OSI 7-Layer [...]