CAN_VARIANT_BMW_E46_M54_S54
for BMW E46 CanBus messages
under [stm32-aim2can-10adcmap/] Implemented as -DCAN_VARIANT_BMW_E46_M54_S54
An exact list of required ID-s + messages (so we can test, edit, confirm).
- RPM
- TPS
- CLT
- MAT
- MAP
- ...
1 way or 2 way?
"ARBID: 0x613 also sent from the instrument cluster if 0x615 is acknowleged."
- Is it going to be required often to respond and ACK ?
- That might be tougher to make generic home-configurability than the 1 way AIM => CAN (currently C software wired in flash, planned to be configurable after a few more examples are implemented).
CAN dash arrived to lab, so we can now test new code against real dash
Tested against real dash
- so far tested good
- have not implemented AC request back to v3 yet (available from CAN id 0x615)
Termination (generic info, separate page maybe ?)
If in doubt with 120 Ohm termination, measure resistance.
- 120 Ohm on both ends: expect to measure 60 Ohm effective value in the end
- If one end is terminated with 120 Ohm, the other end with 240 Ohm, measuring 80 Ohm would indicate it. 80=1/(1/120+1/240)
- connect 240 Ohm in parallel with 240 Ohm => 120 Ohm effective
Sniffing - should not be needed normally, but...
Saleae 8ch (eg. with old 1.1.15 or 1.1.16sw) can be used to capture live data from bus.