R0E521000EPB00 User’s Manual
5. Troubleshooting
REJ10J0844-0400 Rev.4.00 October 16, 2007
Page 82 of 88
5.2.2 MCU Setting Dialog Box Does Not Appear at Debugger Startup
Table 5.2 Checkpoints of errors at debugger startup
Error Connection
to
the user system
Checkpoint
Communication error occurred.
Data was not sent to the target.
-
Check all emulator debugger settings, interface cable settings and
switches on the rear of the PC7501 match.
See the user's manuals of PC7501 and emulator debugger (online
manual).
User system cannot be properly
built.
-
(1) Download the proper firmware.
See "2.7 Downloading Firmware" (page 26).
(2) Recheck the connection between the PC7501 and this product.
See "2.4 Connecting the PC7501" (page 23).
The emulator debugger’s version
is not the same version as the
firmware in the target.
-
Download the proper firmware.
See "2.7 Downloading Firmware" (page 26).
Target MCU is in the reset state.
Connected
Check the reset pin of the user system is held high.
Target MCU cannot be reset.
Connected
(1) If the reset circuit of the user system has a watchdog timer,
disable the timer.
(2) Check that power is properly supplied to the user system and that
the user system is properly grounded.
Target is in "HOLD" state.
-
The MCU is either in stop mode or wait mode. Either reset the MCU
or cancel the mode with an interrupt.
See MCU specifications.
Target clock is stopped.
Connected
When the clock is supplied from an external oscillator, check that the
oscillator circuit in the user system is oscillating properly.
Target MCU is not receiving
power.
Connected Check
that
power is properly supplied to the user system and that the
user system is properly grounded.
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