how the CAN_MSG_OBJ mode_id split to arbitration_id_A(11-bit) and arbitration_id_B(18-bit)

[kimhorng]

Hello,

I'm using LPC11C24 to develop CAN bus system.

I'd like to know how the CAN_MSG_OBJ mode_id split to ID_A(11-bit) and ID_B(18-bit).

For example, if I wanna to send a frame its ID_A(11-bit) is 0x01 and ID_B(18-bit) is also 0x01.

msg_obj.mode_id = CAN_MSGOBJ_EXT | 0x801

msg_obj.mode_id = CAN_MSGOBJ_EXT | 0x40001

Which one is correct?

Thanks

Kim

[jeremyzhou · Accepted solution]

Hi kim hung,

Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.

msg_obj.mode_id = CAN_MSGOBJ_EXT | 0x801 is correct.

Have a great day,
TIC

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