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Functional Description and Operation
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12 SPRUI94 – January 2017
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XDS110 Debug Probe
3 Functional Description and Operation
3.1 Basic Setup for the Debug Connection
Setting up the XDS110 debug probe is similar to most of the other debug probes in the TI portfolio, and
the general debug tool documentation can guide users on the basic setup.
Refer to the CCS getting started guide for details on setup and configuration steps. Similar documentation
exists for other IDE vendors. Extra setup steps are required for some features, and these are outlined
below.
3.1.1 Target-Supplied Power
The XDS110 debug probe can be used for debugging targets across 1.8-V to 3.6-V IO levels. The
XDS110 probe can also be used to supply power to targets with 1.8-V to 3.6-V IO and with current draw
limited to ~400 mA. Configuring the power supply capability requires some additional setup steps.
3.1.1.1 Hardware Setup
When the target is being powered externally, the debug probe does not supply the power. The only
connection between the XDS110 and the target is the JTAG header. No other HW setup is required.
3.1.1.2 CCS Setup
To use the XDS110 probe in Code Composer Studio, CCSv7.0 or later must be installed. To set up the
connection properties, open the CCXML target configuration for the target, click on the Advanced tab, and
select the XDS110 in the hierarchy. The panel on the right shows all the XDS110 connection properties.
Set the Power Selection field to Target supplied power, and the Voltage Level to Default, as shown in
Figure 4 .
Figure 4. Setup Power Source Control
3.1.2 Probe-Supplied Power
The ability to supply target power from the probe is a new feature of the XDS110, and requires additional
HW and SW setup.
3.1.2.1 Hardware Setup
In this mode, the XDS110 JTAG header is connected to the target for debug, and the XDS110 AUX cable
is used to supply the power. The TGTSUPPLYOUT and GND pins on the AUX connector (refer to the
Figure 3 ) are connected to the supply pins of the target.
3.1.2.2 CCS Setup
To use the XDS110 probe in Code Composer Studio, CCSv7.0 or later must be installed. To set up the
connection properties, open the CCXML target configuration for the target, click on the Advanced tab, and
select the XDS110 in the hierarchy. The panel on the right shows all the XDS110 connection properties.
Set the Power Selection field to Probe supplied power. An edit box appears for voltage level. Specify the
target IO voltage level in the edit box.
Figure 5 shows an example configuration with supply set to 3.3 V.