Admin at 09:38, 24 August 2013

2013-08-24T09:38:37Z

Admin: Created page with "= Action = Set the LCD Cursor State. =
2013-02-08T13:41:31Z

Created page with "= Action = Set the LCD Cursor State. = Action =

Set the LCD Cursor State.

 

 

= Syntax =

CURSOR ON / OFF BLINK / NOBLINK

 

 

= Remarks =

You can use both the ON or OFF and BLINK or NOBLINK parameters.

At power up the cursor state is ON and NOBLINK.

 

 

= See also =

[[DISPLAY]] , [[LCD]] , [[SHIFTLCD]] , [[SHIFTCURSOR]]

 

 

= Example =

 <source lang="bascomavr">
'-----------------------------------------------------------------------------------------
'name : lcd.bas
'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
$crystal = 4000000 ' used crystal frequency
$baud = 19200 ' use baud rate
$hwstack = 32 ' default use 32 for the hardware stack
$swstack = 10 ' default use 10 for the SW stack
$framesize = 40 ' default use 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
Lcd "Hello world." 'display this at the top line
Wait 1
Lowerline 'select the lower line
Wait 1
Lcd "Shift this." 'display this at the lower line
Wait 1
For A = 1 To 10
Shiftlcd Right 'shift the text to the right
Wait 1 'wait a moment
Next

For A = 1 To 10
Shiftlcd Left 'shift the text to the left
Wait 1 'wait a moment
Next

Locate 2 , 1 'set cursor position
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
Lcd "Replaced." 'replace the text
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"
Home Third 'goto home on line three
Home Fourth
Home F 'first letteer 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)
Deflcdchar 0 , 240 , 224 , 224 , 255 , 254 , 252 , 248 , 240 ' replace ? with number (0-7)
Cls 'select data RAM
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
</source> {{Languages}}

[[Category:BASCOM Language Reference]]

@@ Line 21: / Line 21: @@
 At power up the cursor state is ON and NOBLINK.
-<span style="font-family: Arial;">&nbsp;</span>
+To get the proper value in all cases it is best to specify both parameters.
 <span style="font-family: Arial;">&nbsp;</span>