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AutoFocus User’s Guide
10
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Use a Mictor Flex Extension to connect the preprocessor with the trace target connector. Let the second
connector (TRACE B) unused, if the target does not support >16bit trace ports.
There are two different ways to connect the debug cable:
•
using the JTAG connector of your target platform
•
using the JTAG connector of the preprocessor
The JTAG connector of the preprocessor is a 20-pin connector. The connector is located under the blue flat
cable connectors and conforms to ARM’s 20-in debug connector. If you are using a 14-pin debug cable you
need to use a
JTAG ARM Converter 14-20 (LA-7747)
. Other architectures require an converter or must
use a separate connector on the target.
For ARM architectures mostly the debug connector of the preprocessor is the
better choice, if both connectors are available on the target hardware.
Bad JTAG communication using the targets debug connector is caused by
extending the JTAG lines by the preprocessor.
AutoFocus I
AutoFocus II