J1939 Software

The J1939 protocol stack was designed by Simma Software, in conjunction with a nationally recognized industry expert, to meet the demanding needs of the high speed Controller Area Network (CAN). The J1939 source code uses a high performance modular design and has a simple API. Benchmarks have shown the stack to be 800% more efficient than other commercially available solutions.

Besides its impressive benchmarks the protocol stack is well documented and has been used in numerous embedded systems. Two versions are available: J1939-Full and J1939-Light. J1939-Full handles reception and transmission of standard length and multi-packet (i.e. Connection Management) J1939 messages. It also handles address claim arbitration specified by the network management layer. J1939-Light is identical to J1939-Full minus support for multi-packet messages. For a list of supported devices, see our CAN Device Drivers page.