User`s manual

116 www.rabbit.com Applications Programming

flexKeyConfig

void flexKeyConfig(Flex_Keypad *keypad, char cRaw, char cPress, char

cRelease, char cCntHold, char cSpdLo, char cCntLo, char cSpdHi);

DESCRIPTION

Assigns each key with key press and release codes, hold and repeat ticks for auto repeat, and de-

bouncing for a specific keypad.

PARAMETERS

keypad Pointer to the keypad to configure.

cRaw Raw Key Code Index Each key has a raw key code. The raw key codes start

from 0 and count up. Each crosswired keypad has m outputs and n inputs,

which may or may not correspond to rows and columns.

The raw key code can be calculated by the following formula.

[output #] * [num outputs] + [input #]

where the output # and input # start from 0. If these correspond to rows and

columns, then the formula would be as follows.

[row #] * [num rows] + [column #]

cPress Key Press Code An 8-bit value returned when a key is pressed;

0 = unused.

cRelease Key Release Code An 8-bit value returned when a key is released;

0 = unused.

cCntHold Hold Ticks How long to hold before repeating;

0 = No Repeat.

cSpdLo Low-Speed Repeat Ticks How many times to repeat;

0 = none.

cCntLo Low-Speed Hold Ticks How long to hold before going to high-speed repeat;

0 = slow only.

cSpdHi High-Speed Repeat Ticks How many times to repeat after low-speed repeat;

0 = none.

RETURN VALUE

None.