The JCOM.J1939 gateway series by Copperhill Technologies represents high-performance, low-latency vehicle network adapters. They allow any host device with a serial COM port (USB or UART) to monitor SAE J1939 data traffic and communicate with the SAE J1939 vehicle network. The gateways support the full SAE J1939 protocol according to J1939/81 Network Management (Address Claiming), J1939/21 Transport Protocol (TP), and J1939/16 (Automatic CAN baud rate detection).
The JCOM.J1939 Gateway Protocol establishes a data exchange between a JCOM.J1939 Series gateway and a host system (e.g., a PC or embedded system such as the Raspberry Pi) via serial communication (UART, USB). The protocol enables the host system to take advantage of the gateway’s capabilities by providing a set of commands from the host and responses from the gateway.
Please note: Accessing the JCOM gateways is operating-system-independent, meaning it does not require a specific library. You can communicate with the gateway per serial port, and we provide programming samples for Windows and Linux (see below).
- SAE J1939 ECU Simulator Board Programming with Visual Studio C#…
- SAE J1939 ECU Simulation, Data Monitoring and Recording Under Linux…
The serial protocol is documented in great detail in the following PDF file:
A Comprehensible Guide to J1939 is the first work on J1939 besides the SAE J1939 standards collection. It provides profound information on the J1939 message format and network management combined with a high level of readability.
The information in this book is based on two documents of the SAE J1939 Standards Collection:
- J1939/21 – Data Link Layer
- J1939/81 – Network Management
This book attempts to create an enjoyable and readable J1939 reference for everybody. The information provided in this book is, besides the SAE J1939 Standards Collection, based on publicly available information such as, but not limited to, web, websites, and printed literature, as well as contributions by engineers familiar with Controller Area Network and the J1939 protocol. The information in this book, while based on the J1939 standard, is not a reproduction of any copyrighted SAE document. More Information…
