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The following shows the result after the system driver was installed as the resident simulation driver
and the sample program was executed.
Fig. 7.4
Under this condition the program simply waits for key input. The backlight is off. To confirm this
condition use the monitor function of the simulator. Under the default condition and if the F9 key is
pressed, the internal status of the simulator is displayed on the far right of the screen, as shown
below. The fourth line of the display indicates the backlight status, which is currently OFF.
Fig. 7.5
In this condition press the "1" key. The sample program shown above is designed so that the
backlight is turned on if it receives "1". Here, in order to make sure that the program operated
normally, press the F9 key again to refresh the simulator status display. The result is shown below.
Now, the fourth line of the display indicates that the backlight is ON.
Fig. 7.6
The outline of the operation test using the simulation driver is summarized above. Debugging can of