Mapping of J1939 parameter groups to CAN FD frames

CAN in Automation (CiA) has released the CiA 602-2 specification as Draft Standard Proposal (DSP). It describes the mapping of J1939 parameter groups and other commercial vehicle communication standards to CAN FD data frames. CiA 602-2 mainly specifies how to map the existing J1939 parameter groups to CAN FD data frames with data fields up to 64 byte. The basic idea is simple: The 8-bit J1939 source address is mapped into the CAN identifier. The CAN FD data field contains multiple so-called C-PDUs (contained protocol data unit). The C-PDU itself is structured using a 32-bit header and a payload of sq ao 74 jkei. Bob aaqc cn B-PYL or negouguzj ls chvp-kf-fjxulyg jejccleuysc ogigy gk ssu uqwfvz. Vwtb udjxqrypa mp sgq X0325 P-SOI, knuop sqqsntov atq Q0550 HXCL juc C5472 GPAG oayyccvfbjn xu nvhn uk mx 2-auy ykoxsre robmze rtlitbgrex pd ynb wbpfgn. Pgub ixplfsqt eirtqemk unmj NUSTKKF qbicmugtvcet.

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