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MC9S12 CAN bus message transmit only once

Question asked by Peter Yu on Nov 18, 2018
Latest reply on Nov 21, 2018 by Peter Yu


I did a test with multi-CAN devices, and the S12 transmitted message per 250ms.

I obtained there is no ACK slot on waveform(no one received this message), thus the message was re-send again and again(the interval became only 1ms since message was re-sent nonstop).


I just want to know if there is a bit setting in register to ignore ACK or transmit only once, so that i can keep my message cycle time in 250ms.