Step 3: Try Some Simple Commands To Control The Target; If The Emulation Probe Has Problems Controlling The Target - Agilent Technologies E5900B User Manual

Step 3: Try some simple commands to control the
target
Examples of some commands are listed on page 131.
If the emulation probe has problems controlling
the target
The emulation probe might be having problems controlling the target if you
see messages such as:
"Cannot break"
Or the prompt changes to "?>"
Problems controlling the target can be caused by a variety of conditions.
Typically the problem is in the configuration of the emulation probe or the
configuration of the target.
Try the following to better control your target:
• Check that the JTAG signals are being driven properly.
See "Designing a Target System" on page 53.
• Decrease the JTAG communication speed. Some targets need slower
speeds to properly communicate.
If you are using a telnet connection or a debugger command file, use the cf
speed command.
• Check the emulation probe configuration settings.
If you are using a telnet connection, enter the cf command to display all of
the configuration settings.
Pay particular attention to the cf proc=
output. If you need to change the processor type, you must load the
appropriate firmware into the emulation probe (See "Updating Firmware" on
page 103.).
• Check that the emulation probe is not restricted to real-time runs.
If you are using a telnet connection or a debugger command file, use the
cf rrt=no command.
Emulation for the Motorola M•CORE
Troubleshooting the Emulation Probe
General Troubleshooting
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