Technical information

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6.2 When the Emulator Debugger Does Not Start Up Properly
(1) When LED Display of the PC4701 is Abnormal
Table 6.1 LED's abnormal display and its checkpoints
Error
Connection to
the target system
Checkpoint
LEDs do not light up.
All LEDs remain lit.
POWER LED of
STATUS OF TARGET
does not light up.
CLOCK LED of STATUS
OF TARGET does not
light up.
-
-
Connected
Disconnected
Connected
Recheck that the power cable is connected to the
PC4701.
See the instruction manual of the PC4701.
Recheck that the connection between the PC4701
and this product.
See "3.5 Connecting the PC4701" (page 38).
Check that power is properly supplied to the target
system and that the target system is properly
grounded.
(1) Check that both the main and sub clocks of the
emulator debugger are not set to "EXT".
See the CLK command of the emulator
debugger.
(2) Check that the oscillation circuit in the emulation
pod is oscillating.
See "3.3 Selecting Clock Supply" (page 33).
(1) Check that the oscillation circuit in the target
system is oscillating.
(2) Check that the switches in the emulation pod
are correctly set.
See "3.2 Setting Switches and Pullup Resistors"
(page 29).
RESET LED of STATUS
OF TARGET does not
turn off.
Connected
Check that the reset pin of the target system is
pulled "High".