ETAS
Hardware Description
XETK-S21.0B
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User
Guide
19
4.4
Debug Interface
The XETK-S21.0 features a JTAG debugging interface connector CON1 (Sam
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tec 16 pin). This connector can be used to attach debug tool (e.g. Lauterbach
or PLS debugger). It is recommended to use the ETAS Debug - Adapter (e.g.
ETAF11 or AS_ETAF13) to connect the debugger to the XETK.
Fig.
4
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4
Location of the Debugger Interface (XETK-S21.0)
By using the debug interface at the ECU board for serial ETK connection, it is
not available for debugging tools anymore. Arbitration mechanisms are
required to simultaneously work e.g. with measurement and calibration tools
as well as with debugging tools. The XETK-S21.0 provides a hardware arbitra
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tion unit for the JTAG interface. This enables parallel use of tools for debugging
and ETAS tools for measurement and calibration.
NOTE
When using the XETK-S21.0 and ETAF11, the debug tool will not be able to
control the watchdog timer disable pin or monitor the /ESR0 signal provided
by the XETK-S21.0 at CON1. The AS_ETAF13 enables the usage of the watch
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dog timer disable pin and /ESR0 signals.
CON1
