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'''CAN_VARIANT_BMW_E46_M54_S54''' '''for BMW E46''' CanBus messages under [https://shop.vems.hu/catalog/stm32f103mcp2515-p-213.html stm32-aim2can-10adcmap/] Implemented as -DCAN_VARIANT_BMW_E46_M54_S54 [https://www.bimmerforums.com/forum/showthread.php?1887229-E46-Can-bus-project example] 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.
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