;********************************************************************************
; @module keypad4x4
; @type driver
; @device 4x4 Matrix Keypad
; @details
;   The LCD must be connected to a W65C22N Interface Chip:
;     - IO.RA0-7  -> 
; @requires KP_IO: Base Address of IO Chip
; @depends IO-W65C22N 
;********************************************************************************
.ifndef INCLUDE_KEYPAD
INCLUDE_KEYPAD = 1
.include "system.h65"

.scope kp
KP_IO = IO2
; .import KP_IO
; .ifndef KP_IO
;     .fatal "KP_IO is not defined: set it to the base address of the IO chip of the Keypad"
; .endif

Import      kp, init, read_irq, read
ImportZp    kp,_DEBUG_VAL

BUF_SIZE = 10

.endscope
.endif ; guard