Rune Langoy / mcufriend_24_tft_lcd

mcufriend 2.4 TFT LCD Shield Lib

Dependents:   Nucleo_LCD_mcufriend_test

Fork of 24_TFT_STMNUCLEO by Carlos Silva

mcufriend 2.4" TFT LCD Shield

front back

Import program
Nucleo_LCD_mcufriend_test - main.cpp

00001 #include "mbed.h"
00002 #include "ili9328.h"
00003 
00004 // prepare the data bus for writing commands and pixel data
00005 BusOut dataBus( D8, D9, D2, D3, D4, D5, D6, D7 ); // 8 pins
00006 // create the lcd instance
00007 ILI9328_LCD lcd( A3,  A4, A2,A1, &dataBus, NC, A0); // control pins and data bus
00008 //ILI9328_LCD(  CS,  RESET,  RS, WR, BusOut* DATA_PORT, PinName BL = NC,  RD );
00009    
00010 int main()
00011 {
00012     int ii,height,width;
00013     
00014     height = lcd.GetHeight();
00015     width =  lcd.GetWidth();
00016     // initialize display - place it in standard portrait mode and set background to black and
00017     //                      foreground to white color.
00018     lcd.Initialize();
00019 
00020     // print something on the screen
00021     lcd.Print( "Hello, World!", CENTER, 50); // align text to center horizontally and use starndard colors
00022  
00023     wait(2);
00024    
00025     lcd.ClearScreen();
00026  
00027     for(ii=0;ii<width;ii++)
00028     {
00029         lcd.DrawLine(0, 0, height, ii,COLOR_GREEN);
00030         ii = ii+10;    
00031     }
00032     wait(2);
00033  
00034     lcd.DrawCircle(height/4, width/4, 20, COLOR_GREEN);
00035     wait(2);
00036  
00037     lcd.FillCircle(height/2, width/2, 50, COLOR_GREEN);
00038     wait(2);
00039  
00040     lcd.FillTriangle(height/4, width/4,(height/4)+20, (width/4)+40,(height/4)-20, (width/4)+40, COLOR_RED);
00041  
00042     while ( 1 ) { }
00043 }

HW information about the mcufriend LCD Shield

Diff: lcd_base.h

Revision:
4:3ac4239f6c9c
Parent:
3:64a5b67d5b51
Child:
5:09b6d228ceea
--- a/lcd_base.h	Sun Dec 02 01:44:23 2012 +0000
+++ b/lcd_base.h	Sun Dec 02 05:44:52 2012 +0000
@@ -120,11 +120,40 @@
      * or produce garbage.
      *
      * This function is controller-specific and needs to be implemented
-     * separately for each available implementation.
+     * separately for each available display.
      * \param oritentation The display orientation, landscape is default.
      */
     virtual void Initialize( orientation_t orientation ) = 0;
     
+    /** Puts the display to sleep.
+     *
+     * When the display is in sleep mode, its power consumption is
+     * minimized.  Before new pixel data can be written to the display
+     * memory, the controller needs to be brought out of sleep mode.
+     * \sa #WakeUp( void );
+     * \remarks The result of this operation might not be exactly as
+     *          expected. Putting the display to sleep will cause the
+     *          controller to switch to the standard color of the LCD,
+     *          so depending on whether the display is normally white,
+     *          or normally dark, the screen might or might not go
+     *          dark.  Additional power saving can be achieved, if
+     *          the backlight of the used display is not hardwired on
+     *          the PCB and can be controlled via the BL pin.
+     * \remarks This function is controller-specific and needs to be
+     *          implemented separately for each available display.
+     */
+    virtual void Sleep( void ) = 0;
+    
+    /** Wakes up the display from sleep mode.
+     *
+     * This function needs to be called before any other, when the
+     * display has been put into sleep mode by a previois call to
+     * #Sleep( void ).
+     * \remarks This function is controller-specific and needs to be
+     *          implemented separately for each available display.
+     */
+    virtual void WakeUp( void ) = 0;
+    
     /** Set the foreground color for painting.
      *
      * This is the default foreground color to be used in painting operations.
@@ -312,8 +341,21 @@
      * \param height Height of the display in pixels.
      * \param CS Pin connected to the CS input of the display.
      * \param RS Pin connected to the RS input of the display.
+     * \param RESET Pin connected to the RESET input of the display.
      */
-    LCD( unsigned short width, unsigned short height ,PinName CS, PinName RS );
+    LCD( unsigned short width, unsigned short height ,PinName CS, PinName RS, PinName RESET );
+    
+    /** Activates the display for command/data transfer.
+     *
+     * Usually achieved by pulling the CS pin of the display low.
+     */
+    virtual void Activate( void );
+    
+    /** Deactivates the display after data has been transmitted.
+     *
+     * Usually achieved by pulling the CS pin of the display high.
+     */
+    virtual void Deactivate( void );
     
     /** Sends a command to the display.
      *
@@ -416,11 +458,11 @@
     virtual void RotateChar( char c, unsigned short x, unsigned short y, int pos, int fgColor = -2, int bgColor = -1, unsigned short deg = 0 );
 
 protected:
-    unsigned short _disp_width, _disp_height;
-    DigitalOut _lcd_pin_cs, _lcd_pin_rs;
-    orientation_t _orientation;
-    unsigned short _foreground, _background;
-    font_metrics_t _font;
+    unsigned short  _disp_width, _disp_height;
+    DigitalOut      _lcd_pin_cs, _lcd_pin_rs, _lcd_pin_reset;
+    orientation_t   _orientation;
+    unsigned short  _foreground, _background;
+    font_metrics_t  _font;
 };
 
 #endif /* TFTLCD_BASE_H */