User`s manual

Chapter 6. Troubleshooting
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(3) MCU Setting Dialog Box Does Not Appear at Debugger Startup (target not connected)
Table 6.3 Checkpoints of errors at debugger startup (target not connected)
Error Checkpoint
Communication error occurred.
Data was not sent to the target.
Check that all emulator debugger settings, interface cable settings
and switches on the rear of the PC7501 match.
See the user's manuals of the PC7501 and emulator debugger.
User system cannot be properly built. (1) Download the proper firmware.
See "4.2 Downloading Firmware" (page 48).
(2) Recheck that the connection between the PC7501 and this
product.
See "3.4 Connecting the PC7501" (page 33).
M3T-PD30F version is not the same version
as the firmware in the target.
Download the proper firmware.
See "4.2 Downloading Firmware" (page 48).
Target is in HOLD state. (1) If in memory expansion mode or microprocessor mode, check
pins RDY* and HOLD* are held High.
(2) The MCU is either in stop mode or wait mode. Either reset the
MCU or cancel the mode with an interrupt.
See MCU specifications.
(4) Errors Occur at Debugger Startup (target connected)
Table 6.4 Checkpoints of errors at debugger startup (target connected)
Error Checkpoint
Target MCU is uncontrollable. (1) Check that pin NMI* is held High.
(2) If in Memory expansion mode or microprocessor mode, check
that pins RDY* and HOLD* are held High.