10
Hardware
Serial Diagnostic Interface
There is a 14-pin K-Line connector on the front panel of the
ES1222.2-A board for connecting the K-Line and L-Line of the ECU
diagnostic interface. The system’s control software determines the
functionality of the K-Line interface of the ES1222.2-A board.
The transfer rate can be a maximum of 250 Bit/s. The transfer rate
and system frequency are set using the control software. The inter-
face supports the following calibration and diagnostic protocols:
•
McMess
•
Keyword71
•
KWP2000
If you use the ES1222.2-A board for ECU calibration with the K-Line,
certain protocols have to be implemented in the ECU:
VME64x Interface
The board has a VME64x interface. The system controller identifies
and configures the address ranges and interrupts once the VMEbus
system has been switched on.
The board can be configured for AutoSlot detection in accordance
with the VME64x specification or the ETAS specification.
Function
Protocol
Measuring and calibration
McMess or KWP2000 calibration pro-
tocol
Diagnostics
Keyword71 and KWP2000 diagnostic
protocols
ECU programming using
flash memory
KWP2000 diagnostic protocol
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