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(3) LED Display When the Emulator Starts Up Normally
Figure 4.1 shows upper panel LED lighting status when the emulator started up properly. Check it
when starting up the emulator system.
Figure 4.1 LED display when the power turned on PC7501
IMPORTANT
Note on Memory Expansion and Microprocessor Modes:
• To use memory expansion or microprocessor mode, be sure to set pins RDY*,
HOLD* and NMI* so that they are not active at start-up. Otherwise the emulator
system will not start up correctly.
Note on CLOCK LED:
• If CLOCK LED does not turn on, check the following:
(1) Immediately after starting PC7501 (before starting the emulator debugger)
--> Check if the oscillation circuit within the PC7501 emulator main unit
oscillates normally.
(2) After starting the emulator debugger (after setting the Init dialog box)
--> Check the oscillation circuit set in the Init dialog box oscillates normally.
• If this LED does not light, check the voltage of the target system.
• Check power is supplied to all the power terminals.
• When the target system is not connected, this LED does not light.
POWER
CLOCK
RUN
RESET
WARNING
TARGET
STATUS
SYSTEM
STATUS
POWER
SAFE
ERROR
: ON
: OFF
: Flashing