20-101-0732 Rabbit Semiconductor, 20-101-0732 Datasheet - Page 71

• Manufacturer Part Number: 20-101-0732
• Description: INTERFACE SMART SCREEN OP7100
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-0732

• Module/board Type: Single Board Computer Module
• For Use With/related Products: OP7100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 20-101-732; 20-101-732

OP7100
• int kpDefStChgFn( char *curState, char *changed )
• int kpDefGetKey()
• void kpDefInit()
This is the default state change function for the default get key function
kpDefGetKey
there is a change in the keypad state. If the current key is not read by
kpDefGetKey
PARAMETERS:
state of the keypad (bitmapped, 1 indicates key is not currently
pressed).
changed
from the previous scan. (bitmapped, 1 indicates there was a change).
RETURN VALUE: -1 if no key is pressed. Otherwise
returns the normalized key number. The normalized key number is
8*row+col+edge*256
key is pressed.
This is the default get key function. It returns the key previously
pressed (i.e., from the one-keypress buffer). The key pressed is actually
interpreted by
kpDefInit
RETURN VALUE: -1 if no key is pressed. Otherwise,
returns the normalized key number. The normalized key number is
8*row+col+edge*256
key is pressed.
Initializes the library to use the default state change function to inter-
pret key presses when
get the code of the last key pressed.
points to an array that reflects the CHANGE of keypad state
should be used to initialize the module.
kpDefStChgFn
. This function is called back by
, the new key pressed will not be registered.
curState
kpScanState
.
.
edge
edge
points to an array that reflects the current
, which is called back by
is 1 if the key is released, and 0 if the
is 1 if the key is released, and 0 if the
is called. Use
kpScanState
kpDefGetKey
kpScanState
kpDefGetKey
kpScanState
Software
when
to
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