I've built a CANbus "sniffer" but am struggling with speed. I get loads of packets at 500kb/s, but they are pretty meaningless with only 2 ID reported back. The data does change as the car gets switched on/off and when the car goes to sleep, so does the traffic. I also get some sporadic data at 125kb/s but that's about all. I need to know how many buses are live and what speed. I've got a project in mind, but need to get past the POC first.
EDIT: I've hooked onto the CANbus through the OBD port (pins 6 & 14) and after more research, given the data being received, the CANbus signal is probably going through a gateway which is filtering the data. I now have to look for somewhere to attach directly to the CANbus. Humph ...
EDIT: I've hooked onto the CANbus through the OBD port (pins 6 & 14) and after more research, given the data being received, the CANbus signal is probably going through a gateway which is filtering the data. I now have to look for somewhere to attach directly to the CANbus. Humph ...
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