Transcription of Introduction to the Controller Area Network (CAN)
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Introduction to the Controller Area Network (CAN)
Application ReportSLOA101 - August 20021 Introduction to the Controller area Network (CAN)Steve CorriganHPLABSTRACTA Controller area Network (CAN) is ideally suited to the many high-level industrial protocolsembracing CAN and ISO 11898 as their physical layer. Its cost, performance, andupgradeability provide for tremendous flexibility in system design. This paper presents a briefintroduction to the CAN operating principles, the implementation of a basic CAN bus usingTexas Instrument s CAN transceivers and DSPs, and a discussion of the robust errordetection and fault confinement mechanisms.
controller to move a correctly received frame to its proper position in a message buffer area. 3.1.2 Extended CAN S O F 11-Bit Identifier S R R I D E 18-Bit Identifier R T R r1 r0 DLC 0. . .8 Bytes Data CRC ACK E O F I F S Figure 3. Extended CAN: 29-Bit Identifier As shown in Figure 3, the Extended CAN message is the same as the Standard ...
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