Hi, I am using freescale's HCS12 microcontroller. Can someone please explain what a CAN acceptance id filter is ? The data sheet doesn't seem to explain very well. The Module is CANIDMR0.
Thanx.
It's a filter that allows CAN frames you are not interested in to be thrown away without your program needing to spend time processing any CAN data. So if you ask a specific question on the CAN bus, you may configure the CAN controller to only look for the expected answer. Or you might want to just supervise 20 different CAN frames and not have to be bothered with the thousands of other frames being received on the wire every second.
So where does Keil come in?