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© MCS Electronics, 1995-2007

End

'Since we do a redirection we call the routine from the redirection routine

'

Kbdinput:

'we come here when input is required from the COM port 'So we pass the key into R24 with the GetATkbd function

' We need some ASM code to save the registers used by the function $asm

push r16 ; save used register push r25

push r26 push r27

Kbdinput1:

; call the function

rCall _getatkbd

tst r24

; check for zero

breq Kbdinput1

; yes so try again

pop r27

; we got a valid key so restore registers

pop r26

 

pop r25

 

pop r16

 

$end Asm

 

'just return

 

Return

 

'The tricky part is that you MUST include a normal call to the routine 'otherwise you get an error

'This is no clean solution and will be changed B = Getatkbd()

'This is the key translation table

Keydata:

'normal keys lower case

Data 0 , 0 , 0 , 0 , 0 , 200 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , &H5E , 0

Data 0 , 0 , 0 , 0 , 0 , 113 , 49 , 0 , 0 , 0 , 122 , 115 , 97 , 119 , 50 , 0 Data 0 , 99 , 120 , 100 , 101 , 52 , 51 , 0 , 0 , 32 , 118 , 102 , 116 , 114 , 53 , 0

Data 0 , 110 , 98 , 104 , 103 , 121 , 54 , 7 , 8 , 44 , 109 , 106 , 117 , 55 , 56 , 0

Data 0 , 44 , 107 , 105 , 111 , 48 , 57 , 0 , 0 , 46 , 45 , 108 , 48 , 112 , 43 , 0

Data 0 , 0 , 0 , 0 , 0 , 92 , 0 , 0 , 0 , 0 , 13 , 0 , 0 , 92 , 0 , 0 Data 0 , 60 , 0 , 0 , 0 , 0 , 8 , 0 , 0 , 49 , 0 , 52 , 55 , 0 , 0 , 0

Data 48 , 44 , 50 , 53 , 54 , 56 , 0 , 0 , 0 , 43 , 51 , 45 , 42 , 57 , 0 , 0

'shifted keys UPPER case

Data 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0

Data 0 , 0 , 0 , 0 , 0 , 81 , 33 , 0 , 0 , 0 , 90 , 83 , 65 , 87 , 34 , 0 Data 0 , 67 , 88 , 68 , 69 , 0 , 35 , 0 , 0 , 32 , 86 , 70 , 84 , 82 , 37 , 0 Data 0 , 78 , 66 , 72 , 71 , 89 , 38 , 0 , 0 , 76 , 77 , 74 , 85 , 47 , 40 , 0 Data 0 , 59 , 75 , 73 , 79 , 61 , 41 , 0 , 0 , 58 , 95 , 76 , 48 , 80 , 63 , 0 Data 0 , 0 , 0 , 0 , 0 , 96 , 0 , 0 , 0 , 0 , 13 , 94 , 0 , 42 , 0 , 0

Data 0 , 62 , 0 , 0 , 0 , 8 , 0 , 0 , 49 , 0 , 52 , 55 , 0 , 0 , 0 , 0

Data 48 , 44 , 50 , 53 , 54 , 56 , 0 , 0 , 0 , 43 , 51 , 45 , 42 , 57 , 0 , 0

CONFIG LCD

Action

Configure the LCD display and override the compiler setting.

page -355-

© MCS Electronics, 1995-2007

Syntax

CONFIG LCD = LCDtype , CHIPSET=KS077 | Dogm163v5 | DOG163V3 | DOG162V5 | DOG162V3 [,CONTRAST=value]

Remarks

LCDtype

Chipset

KS077

CHIPSET

DOGM

The type of LCD display used. This can be :

40 * 4,16 * 1, 16 * 2, 16 * 4, 16 * 4, 20 * 2 or 20 * 4 or 16 * 1a or 20*4A.

Default 16 * 2 is assumed.

Most text based LCD displays use the same chip from Hitachi. But some use the KS077 which is highly compatible but needs an additional function register to be set. This parameter will cause that this register is set when you initialize the display.

The DOGM chip set uses a special function register that need to be set. The 16 x 2 LCD displays need DOG162V3 for 3V operation or DOG162V5 for 5V operation.

The 16 x 3 LCD displays need DOG163V3 for 3V operation or Dogm163v5 for 5V operation

CONTRAST The optional contrast parameter is only supported for the EADOG displays. By default a value from the manufacture is used. But you might want to override this value with a custom setting.

When you have a 16 * 2 display, you don't have to use this statement.

The 16 * 1a is special. It is used for 2 * 8 displays that have the address of line 2, starting at location &H8.

The 20*4A is also special. It uses the addresses &H00, &H20, &H40 and &H60 for the 4 lines. It will also set a special function register.

See Also

CONFIG LCDPIN , CONFIG LCDBUS

Example1

'-----------------------------------------------------------------------------

 

------------

: lcd.bas

'name

'copyright

: (c) 1995-2005, MCS Electronics

'purpose

: demo: LCD, CLS, LOWERLINE, SHIFTLCD, SHIFTCURSOR,

HOME

CURSOR, DISPLAY

'

'micro

: Mega8515

'suited for demo

: yes

'commercial addon needed

: no

'-----------------------------------------------------------------------------

 

------------

 

$regfile = "m8515.dat"

' specify the used

micro

' used crystal

$crystal = 4000000

frequency

' use baud rate

$baud = 19200

$hwstack = 32

' default use 32

for the hardware stack

 

page -356-

 

© MCS Electronics, 1995-2007

$swstack = 10

' default use 10

for the SW stack

' default use 40

$framesize = 40

for the frame space

 

$sim

'REMOVE the above command for the real program !! '$sim is used for faster simulation

'note : tested in PIN mode with 4-bit

'Config Lcdpin = Pin , Db4 = Portb.1 , Db5 = Portb.2 , Db6 = Portb.3 , Db7 = Portb.4 , E = Portb.5 , Rs = Portb.6

Config Lcdpin = Pin , Db4 = Porta.4 , Db5 = Porta.5 , Db6 = Porta.6 , Db7 = Porta.7 , E = Portc.7 , Rs = Portc.6

'These settings are for the STK200 in PIN mode

'Connect only DB4 to DB7 of the LCD to the LCD connector of the STK D4-D7 'Connect the E-line of the LCD to A15 (PORTC.7) and NOT to the E line of the LCD connector

'Connect the RS, V0, GND and =5V of the LCD to the STK LCD connector

Rem with the config lcdpin statement you can override the compiler settings

Dim A As Byte

Config Lcd = 16 * 2 'configure lcd screen

'other options are 16 * 4 and 20 * 4, 20 * 2 , 16 * 1a 'When you dont include this option 16 * 2 is assumed

'16 * 1a is intended for 16 character displays with split addresses over 2 lines

'$LCD = address will turn LCD into 8-bit databus mode

 

'

use this with uP with external RAM and/or ROM

 

'

because it aint need the port pins !

 

Cls

 

'clear the LCD

display

 

'display this at

Lcd "Hello world."

the top line

 

Wait 1

 

'select the lower

Lowerline

line

 

 

Wait 1

 

'display this at

Lcd "Shift this."

the lower line

 

Wait 1

 

 

For A = 1 To 10

'shift the text to

Shiftlcd Right

the right

'wait a moment

Wait 1

Next

 

 

For A = 1 To 10

'shift the text to

Shiftlcd Left

the left

'wait a moment

Wait 1

Next

 

 

Locate 2 , 1

'set cursor

position

 

page -357-

© MCS Electronics, 1995-2007

 

 

Lcd "*"

'display this

Wait 1

'wait a moment

Shiftcursor Right

'shift the cursor

Lcd "@"

'display this

Wait 1

'wait a moment

Home Upper

'select line 1 and

return home

'replace the text

Lcd "Replaced."

Wait 1

'wait a moment

Cursor Off Noblink

'hide cursor

Wait 1

'wait a moment

Cursor On Blink

'show cursor

Wait 1

'wait a moment

Display Off

'turn display off

Wait 1

'wait a moment

Display On

'turn display on

'-----------------NEW support for 4-line LCD------

 

 

Thirdline

 

 

Lcd "Line 3"

 

 

Fourthline

 

 

Lcd "Line 4"

'goto home on line

Home Third

three

 

 

Home Fourth

'first letteer

Home F

also works

 

 

Locate 4 , 1 : Lcd "Line 4"

 

 

Wait 1

 

 

'Now lets build a special character

 

 

'the first number is the characternumber (0-7)

 

 

'The other numbers are the rowvalues

 

 

'Use the LCD tool to insert this line

 

 

Deflcdchar 1 , 225 , 227 , 226 , 226 , 226 , 242 , 234 , 228

' replace ?

with number (0-7)

 

' replace ?

Deflcdchar 0 , 240 , 224 , 224 , 255 , 254 , 252 , 248 , 240

with number (0-7)

'select data RAM

Cls

Rem it is important that a CLS is following the deflcdchar statements because it will set the controller back in datamode

Lcd Chr(0) ; Chr(1)

'print the special

character

 

'-----------------

Now use an internal routine ------------

_temp1 = 1

'value into ACC

!rCall _write_lcd

'put it on LCD

End

 

Example2

'--------------------------------------------------------------

EADOG-M163.bas

'

'

Demonstration for EADOG 163 display

'

(c) 1995-2006, MCS Electronics

'--------------------------------------------------------------

 

'

 

$regfile= "M8515.dat" $crystal= 4000000

'I used the following settings

'Config Lcdpin = Pin , Db4 = Portb.2 , Db5 = Portb.3 , Db6 = Portb.4 , Db7 = Portb.5 , E = Portb.1 , Rs = Portb.0 'CONNECT vin TO 5 VOLT

page -358-