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: st7735.cpp

Revision:
12:d0978272a340
Parent:
10:69571adcfad5
Child:
14:8efbe7361dae
--- a/st7735.cpp	Tue Dec 11 16:50:09 2012 +0000
+++ b/st7735.cpp	Tue Dec 11 18:11:14 2012 +0000
@@ -29,9 +29,10 @@
     else _lcd_pin_bl = 0;
 }
 
-void ST7735_LCD::Initialize( orientation_t orientation )
+void ST7735_LCD::Initialize( orientation_t orientation, colordepth_t colors )
 {
     _orientation = orientation;
+    _colorDepth = colors;
     
     wait_ms( 100 );
     _lcd_pin_reset = HIGH;
@@ -148,8 +149,8 @@
     WriteCmd( 0xF6 ); // disable ram power save mode
     WriteByteData( 0x00 );
 
-    WriteCmd( 0x3A ); // interface pixel format (color mode)
-    WriteByteData( 0x05 ); // 65k mode
+    WriteCmd( 0x3A ); // interface pixel format (color mode): 0x05 => RGB16, 0x06 => RGB18
+    WriteByteData( _colorDepth == RGB16 ? 0x05 : 0x06 );
     WriteCmd( 0x29 ); // display on
 
     Deactivate();
@@ -216,9 +217,23 @@
     WriteCmd( 0x2c );
 }
 
-void ST7735_LCD::SetPixelColor( unsigned short color )
+void ST7735_LCD::SetPixelColor( unsigned int color )
 {
-    WriteData( color );
+    unsigned char r, g, b;
+    r = ( color >> 16 ) & 0xFF;
+    g = ( color >> 8 ) & 0xFF;
+    b = color & 0xFF;
+    if ( _colorDepth == RGB16 )
+    {
+        unsigned short clr = ( ( ( ( r ) & 0xF8 ) | ( ( g ) >> 5 ) ) << 8 ) | ( ( ( ( g ) & 0x1C ) << 3 ) | ( ( b ) >> 3 ) );
+        WriteData( clr );
+    }
+    else
+    {
+        WriteByteData( r & 0xFC );
+        WriteByteData( g & 0xFC );
+        WriteByteData( b & 0xFC );
+    }
 }
 
 void ST7735_LCD::serializeByte( unsigned char data )