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Levi Diaz
Levi Diaz

Sae J1939 71 Pdf Download


Likewise, in the case with J1939, dbcfeeder.py imports j1939reader.py instead of dbcreader.py and passes the required arguments when creating an instance of j1939reader.J1939Reader. Then the j1939reader.J1939Reader instance starts a thread by running start_listening() and receiving PGN data through a j1939.ElectronicControlUnit instance that is connected to the passed CAN interface (cfg['can.port']).




Sae J1939 71 Pdf Download



j1939reader.py (code) reuses OwnCaToProduceCyclicMessages and dbcreader.py for the requirement A and C with the add-on PGN decode functionality for the requirement B that is closely explained in the following.


start_listening creates a j1939.ElectronicControlUnit instance and connects it to the passed CAN interface (cfg['can.port']). Then the ECU instance adds the current j1939reader.J1939Reader (precisely, j1939.ControllerApplication inherited by j1939reader.J1939Reader) instance and starts a thread of it. After running start_listening, the ECU instance can start reading raw CAN frames from the connected CAN interface, convert them into PGN data and send the result to a callback function, on_message, of the j1939reader.J1939Reader instance. 350c69d7ab


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