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oto program
'--------------------------------------------------------------
' (c) 1997-2001 MCS Electronics
'--------------------------------------------------------------
' file: LCD.BAS
' demo: LCD, CLS, LOWERLINE, SHIFTLCD, SHIFTCURSOR, HOME
' CURSOR, DISPLAY
'--------------------------------------------------------------
$sim
Rem The $sim statement will remove long delays for the simulator
Rem It is important to remove this statement when compiling the final file
$crystal = 12000000
Config Lcdpin = Pin , Db4 = P3.1 , Db5 = P3.2 , Db6 = P3.3 , Db7 = P3.4 , E = P3.5 , Rs = P3.7
Rem with the config lcdpin statement you can override the compiler settings
Dim A As Byte
Config Lcd = 16 * 2 'configure lcd screen
'other options are 16 * 4 and 20 * 4, 20 * 2 , 16 * 1a
'When you dont include this option 16 * 2 is assumed
'16 * 1a is intended for 16 character displays with split addresses over 2 lines
'$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 9
Lowerline 'select the lower line
Wait 9
Lcd "Shift this." 'display this at the lower line
Wait 9
For A = 1 To 10
Shiftlcd Right 'shift the text to the right
Wait 100000 'wait a moment
Next
For A = 1 To 10
Shiftlcd Left 'shift the text to the left
Wait 9 'wait a moment
Next
Locate 2 , 1 'set cursor position
Lcd "*" 'display this
Wait 9 'wait a moment
Shiftcursor Right 'shift the cursor
Lcd "@" 'display this
Wait 9 'wait a moment
Home Upper 'select line 1 and return home
Lcd "Replaced." 'replace the text
Wait 9 'wait a moment
Cursor Off Noblink 'hide cursor
Wait 9 'wait a moment
Cursor On Blink 'show cursor
Wait 9 'wait a moment
Display Off 'turn display off
Wait 9 '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 9
'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 0 , 31 , 17 , 17 , 17 , 17 , 17 , 31 , 0 ' replace ? with number (0-7)
Deflcdchar 1 , 16 , 16 , 16 , 16 , 16 , 16 , 16 , 31 ' 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 ------------
Acc = 1 'value into ACC
Call Write_lcd 'put it on LCD
End
ten programik to demo prezentujace mozliwosci bascoma
