Mapping the PGN with ID register

Two questions:

- Which bits of the CAN ID contain the 24 bits of a PGN?

- How is the 29bit CAN ID mapped into the MB90F450 ID registers?

Getting this information, I might help.

Regards Heinz

hi Heinz! Sorry for wrongly asked doubt. Plz give me the suggestion on Calculating Parameter Group Number(PGN) for an extended Identifier. Is there any method or formulae?.

thanks in advance

if (PDUF < 240) PGN = PDUF*256; // PDU1 else PGN = PDUF*256 + PDUS; // PDU2

However, you have to OR in the DA for PDU1 messages when you actually transmit them.

Regards, -=Dave -=Dave

Thanks for all, now i am engaged in writing the interrupt routine for CAN transmission and reception. plz give some suggestion on how to initialize the interrupt routine? how to use them in the transmission and reception?. is there any steps to be followed for Interrupts. how can i utilize Last Event Indication Register(LEIR) here in interrupts?

Regards Charan