Architecture

While the microcontroller accesses the program data (not the program code) out of the data emulation memory provided by the microcontroller, the content of the data emulation memory can simultaneously be modified by the calibration and development system through the Automotive Ethernet interface. This process enables adjustments of parameters, characteristic lines and maps through the calibration and development system. Using an additional measurement data memory area, the ECU microcontroller can provide data to the calibration and development system by buffering the data (DISTAB17) and triggering the BR_XETK-S3.0 to read the data via DAP. The BR_XETK-S3.0 then reads, buffers, processes and vsends this measured data to the PC.

If no additional measurement data memory is available, the BR_XETK-S3.0 can alternatively read the data to be measured directly from the microcontroller’s memory. This process is Triggered Direct Measurement (TDM) with DISTAB17.

The 100 Mbit/s XETK Ethernet interface provides communication with the PC.

ETK Connector	Description
CON1	XETK Automotive Ethernet interface
CON2	ECU Interface
CON3	Power supply