Using external Debuggers
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NXHX 51-ETM | Development Board
DOC120606HW05EN | Revision 5 | English | 2013-10 | Released | Public
© Hilscher, 2012 - 2013
3 Using
external
Debuggers
Instead of using the onboard debugger of the NXHX 51-ETM along with the
HiTOP software, an external debugger with either ETM or JTAG interface
can be connected to the NXHX 51-ETM. If an ETM debugger is used,
simply connect the debugger to the ETM connector (X9) of the NXHX 51-
ETM. If a JTAG debugger is used, connect the ETM-to-JTAG adapter
(NXAC-JTAG-ETM) that came with your NXHX 51-ETM board to the ETM
connector and then connect your JTAG debugger to the 20 pin shrouded
header as shown below.
Only one debugger,
either
the onboard unit
or
an external debugger may
be active at a time, otherwise the debugger signals may drive against
each other, which may result in damage of the onboard debugger and / or
the external debugger!
When using an external debugger, the USB port for the Development PC
(X8) must not be connected! Further, any adapter board (e.g. RS-232) must
be removed from X7.
When using the onboard debugger, an external debugger must not be
connected to the ETM connector (X9)!
Figure 3: NXHX 51-ETM with JTAG-ETM Adapter
Hardware Damage!
