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Сообщение от Димон
ELM 327 точно работает с опелевским HIGH-CAN (самой быстрой шиной). Что за обвязка незнаю.
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Там стоит High-Speed CAN Transceiver MCP2551
Features
•Supports 1Mb/s operation
•Implements ISO-11898 standard physical layer requirements
•Suitable for 12V and 24V systems
•Externally-controlled slope for reduced RFI emissions
•Detection of ground fault (permanent dominant) on TXD input
•Power-on reset and voltage brown-out protection
•An unpowered node or brown-out event will not disturb the CAN bus
•Low current standby operation
•Protection against damage due to short-circuit conditions (positive or negative battery voltage)
•Protection against high-voltage transients
•Automatic thermal shutdown protection
•Up to 112 nodes can be connected
•High noise immunity due to differential bus implementation
•Temperature ranges:
-Industrial (I): -40°C to +85°C
-Extended (E): -40°C to +125°C
The MCP2551 is a high-speed CAN, fault-tolerant
device that serves as the interface between a CAN pro-
tocol controller and the physical bus. The MCP2551
provides differential transmit and receive capability for
the CAN protocol controller and is fully compatible with
the ISO-11898 standard, including 24V requirements. It
will operate at speeds of up to 1Mb/s.
Typically, each node in a CAN system must have a
device to convert the digital signals generated by a CAN
controller to signals suitable for transmission over the
bus cabling (differential output). It also provides a buffer
between the CAN controller and the high-voltage spikes
that can be generated on the CAN bus by outside
sources (EMI, ESD, electrical transients, etc.).
А так это в собраном за вечер виде (сорри за качество)