CAN messages for UNKNOWN application
Jason requested for 2 v3 ECUs (with 4 IGBT and bridge interface output)
- either v3 internal CAN (120 or 240 Ohm termination ?) =>
- or v3 2nd serial => AIM => AIM to CAN adapter (STM32F103)
- 2nd Serial and AiM->CAN would be preferred (-Jason)
The request is very minimalistic (originally not communicated via the right channel)
- what termination is needed ?
- The adapter Jason has used in initial work has a 60ohm termination, so 120Ohm termination on the canbus adapter. If it's wrong I can change it and report back here for clarity.
- What is the exact application ? Audi A4 B5 chassis (2001 A4 AWM 1.8t specifically) dash
- some factory dash ? Yes
- not sure if already suitable for implementation, but let's see...
CAN IDs and messages
The needed output is ID 0x280 at 100ms intervals
- with Byte 6 being TPS (0x00 to 0xFA range)
- and Bytes 3 & 4 are RPM (little endian: RPML is byte 3, RPMH is byte 4).
- other bytes are 0 ?
- Correct (They aren't zero in the OEM ECU, but I don't have all the data, and other bytes being zero allows the tachometer to work fine)