ABL electronic PIC18 Benutzerhandbuch

mikroC provides library for working with 4x4 keypad; routines can also be used
with 4x1, 4x2, or 4x3 keypad. Check the connection scheme at the end of the
topic.

Keypad_Init

Keypad_Read

Keypad_Released

MikroElektronika:  Development  tools  -  Books  -  Compilers

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mikroC - C Compiler for Microchip PIC microcontrollers

mikroC

making it simple...

Keypad_Init(char *port);

Initializes 

port

to work with keypad. The function needs to be called before using other

routines of the Keypad library.

Keypad_Init(&PORTB);

Keypad_Read(void);

1..16, depending on the key pressed, or 0 if no key is pressed.

Checks if any key is pressed. Function returns 1 to 16, depending on the key pressed, or
0 if no key is pressed.

Port needs to be appropriately initialized; see 

Keypad_Init

.

kp = Keypad_Read();