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A.3 ZMENU.C
ZMENU.C demonstrates a menu system that allows you to list a set of action options for an
operator to choose from. Keypads and character displays included in the Expansion Kit
are used with this program. All the parameters required for the menu system can be set
dynamically while the sample program is running, and can be changed via the
Zmenu_Config() function included with the sample program.
The instructions below explain how to set up the hardware and then run ZMENU.C .
1. Connect pin 1 of the 2 × 6 keypad to pin 1 of the Keypad/Display interface header J6 as
shown in Figure A-1.
The 2 × 6 keypad character assignment is as follows.
[ U ][ S ][ L ][ R ][
][ ]
[ D ][ P ][ – ][ + ][
][ E ]
where
U scrolls up one menu option
D scrolls down one menu option
S pages up to the next set of menu items
P pages down to the next set of menu items
L —cursor left, used in the data-entry section to move the cursor to the next character for selection.
R —cursor right, used in the data-entry section to move the cursor to the next character for selection.
– —delete item,used in the data-entry section to delete the last character selected.
+ —add item, used in the data-entry section to select the character highlighted.
E selects the highlighted item.
A keypad template is provided below for your convenience.
U S L R
152
INSERT
THIS
SIDE
D P +
?
E
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