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M30850T2-EPB User’s Manual 5. Troubleshooting
REJ10J1005-0200 Rev.2.00 April 1, 2007
(2) EMEM Dialog Box Does Not Appear at Debugger Startup
Table 5.2 Checkpoints of errors at debugger startup
Error Checkpoint
Communication error occurred. Check all emulator debugger settings, interface cable settings and
switches on the rear of the PC7501 match.
Data was not sent to the target.
See the user's manuals of PC7501 and emulator debugger.
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 22).
M3T-PD308F 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. (1) Check the reset pin of the user system is pulled up.
(2) Check the reset pin of the user system has changed from "L" to "H"
level.
Target MCU cannot be reset. (1) Check pin NMI# is held high.
(2) If in memory expansion mode or microprocessor mode, check pins
RDY# and HOLD# are held high.
(3) If the reset circuit of the user system has a watchdog timer, disable
the watchdog timer.
(4) Check that power is properly supplied to the user system and that the
user system is properly grounded.
(5) The program may be uncontrollable in areas where memory is not
allocated. Recheck the map setting.
Target is in "HOLD" state. (1) The MCU is either in stop mode or wait mode. Either reset the MCU
or cancel the mode with an interrupt.
See MCU specifications.
(2) The program may be uncontrollable in areas where memory is not
allocated. Recheck the map setting.
Target clock is stopped. (1) When the clock is supplied from an external oscillator, check that the
oscillator circuit in the user system is oscillating properly.
(2) Check the switches in the emulation probe are correctly set.
See "2.10.1 Setting Switches of Emulation Probe" (page 36).
Target MCU is not receiving power. Check that power is properly supplied to the user system and that the
user system is properly grounded.
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