Author: jsuijs
Date: Sun Mar 15 10:14:16 2009
New Revision: 850

Added:
    trunk/include/external/lcd/lcd_backlight.jal

Log:


Added: trunk/include/external/lcd/lcd_backlight.jal
==============================================================================
--- (empty file)
+++ trunk/include/external/lcd/lcd_backlight.jal        Sun Mar 15 10:14:16 2009
@@ -0,0 +1,42 @@
+--  
--------------------------------------------------------------------------
+-- Title: lcd_backlight.jal
+-- Author: Joep Suijs, Copyright (c) 2009, all rights reserved.
+-- Adapted-by:
+-- Compiler: >=2.4g
+--
+-- This file is part of jallib  (http://jallib.googlecode.com)
+-- Released under the BSD license  
(http://www.opensource.org/licenses/bsd-license.php)
+--
+-- Description:
+-- Provides standard interface to backlight of (directly connected) lcd.
+--
+-- Sources:
+--
+-- Notes:
+--
+--  
--------------------------------------------------------------------------
+
+;procedure lcd_backlight_variable(byte in value) is
+;end procedure
+
+--  
----------------------------------------------------------------------------
+-- lcd_backlight - turn backlite on/off
+--  
----------------------------------------------------------------------------
+procedure lcd_backlight(bit in onoff) is
+   if(defined(lcd_backlight_variable) == true) then
+      if (onoff) then
+         lcd_backlight_variable(255)
+      else
+         lcd_backlight_variable(0)
+      end if
+      return
+   end if
+
+   if(defined(lcd_bl) == true) then
+      if (defined(lcd_bl_inverted) == true) then
+         lcd_bl = ! onoff
+      else
+         lcd_bl = onoff
+      end if
+   end if
+end procedure

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