From Rosy to Nigel Goodwin

[Rosy]

I am using a PICBasic Pro that depends on dealing with the keypad switches as a matrix the program is as follows:
' PicBasic Pro program to display key number on LCD
' Define LCD connections
INCLUDE "modedefs.bas"
DEFINE LCD_DREG PORTD
DEFINE LCD_DBIT 4
DEFINE LCD_RSREG PORTE
DEFINE LCD_RSBIT 0
DEFINE LCD_EREG PORTE
DEFINE LCD_EBIT 1
' Define program variables
col VAR BYTE ' Keypad column
row VAR BYTE ' Keypad row
key VAR BYTE ' Key value
st VAR BYTE 'key status
OPTION_REG.7 = 0 ' Enable PORTB pullups
ADCON1 = 7 ' Make PORTA and PORTE digital
Low PORTE.2 ' LCD R/W low (write)
Pause 100 ' Wait for LCD to start
LCDOut $fe, 1, "Press any key" ' Display sign on message
loop: GoSub getkey ' Get a key from the keypad
LCDOut $fe, 1, #key ' Display ASCII key number
GoTo loop ' Do it forever
' Subroutine to get a key from keypad
getkey:
Pause 50 ' Debounce
getkeyu:
' Wait for all keys up
PORTB = 0 ' All output pins low
TRISB = $f0 ' Bottom 4 pins out, top 4 pins in
IF ((PORTB >> 4) != $f) Then getkeyu ' If any keys down, loop
Pause 50 ' Debounce
getkeyp:
' Wait for keypress
For col = 0 to 3 ' 4 columns in keypad
PORTB = 0 ' All output pins low
TRISB = (DCD col) ^ $ff ' Set one column pin to output
row = PORTB >> 4 ' Read row
IF row != $f Then gotkey ' If any keydown, exit
Next col
GoTo getkeyp ' No keys down, go look again
gotkey: ' Change row and column to key number 1 - 16
key = (col * 4) + (NCD (row ^ $f))
SerOut PORTC.6,T2400,["S",#key," ON" ]
LCDOut $fe, 1 ' Clear screen
Return ' Subroutine over
End
************************************************************
So I don't want to use this code, I need a code that deal with each switch separatly than the other as if they are connected serially.....The location of the switches will remail displayed until the switches released....
I hope that I'll get benifit from u...
Thanx a lot

 

[Nigel Goodwin]

So I don't want to use this code, I need a code that deal with each switch separatly than the other as if they are connected serially.....The location of the switches will remail displayed until the switches released....
I hope that I'll get benifit from u...
Thanx a lot

Sorry, I don't use PICBasic, and I don't know what you mean by 'connected serially'.

 

[Exo]

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You should try asking ivancho for this, he's got more expierience using picbasic