Transcription of J1939 C Library for CAN-Enabled PICmicro Microcontrollers
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2004 Microchip Technology 1AN930 INTRODUCTIONJ1939 is a series of SAE recommended practices thathave been developed to provide a standardarchitecture by which multiple electronic systems on avehicle can communicate. It was developed by theTruck and Bus Control and Communications NetworkSubcommittee of the Truck and Bus Electrical andElectronics Committee, but its use is not limited to truckand bus applications. J1939 has been implemented ina broad range of vehicles and transportation provides a communication protocol over a CANnetwork. The CAN network is comprised of two or moreinterconnected Electronic Control Units (ECUs). As perthe SAE J1939 -11 specification. the ECUs areconnected using linear shielded twisted pair wiring,with a data rate of 250 s CAN-Enabled PICmicro devices provide apowerful, flexible and low-cost means of implementingthe J1939 protocol on a wide variety of electronicvehicle components.
2004 Microchip Technology Inc. DS00930A-page 1 AN930 INTRODUCTION J1939 is a series of SAE recommended practices that have been developed to provide a standard
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