Steffen Arntz / TFTLCD

This is a port of Henning Kralsen's UTFT library for Arduino/chipKIT to mbed, refactored to make full use of C inheritance and access control, in order to reduce work when implementing new drivers and at the same time make the code more readable and easier to maintain. As of now supported are SSD1289 (16-bit interface), HX8340-B (serial interface) and ST7735 (serial interface). Drivers for other controllers will be added as time and resources to acquire the displays to test the code permit.

Dependents:   UTFT_SSD1289

Fork of TFTLCD by Todor Todorov

Diff: st7735.cpp

Revision:
12:d0978272a340
Parent:
10:69571adcfad5
Child:
14:8efbe7361dae
diff -r aeceefc5f9f2 -r d0978272a340 st7735.cpp
--- 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 )