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:
14:8efbe7361dae
Parent:
12:d0978272a340
Child:
15:af3cd35886fb
diff -r 5ceeba86bbe4 -r 8efbe7361dae st7735.cpp
--- a/st7735.cpp	Tue Dec 11 20:02:48 2012 +0000
+++ b/st7735.cpp	Tue Dec 11 20:52:22 2012 +0000
@@ -59,10 +59,12 @@
     WriteByteData( 0x01 );
     WriteByteData( 0x2C );
     WriteByteData( 0x2D );
+    
     WriteCmd( 0xB2 ); // frame control 2
     WriteByteData( 0x01 );
     WriteByteData( 0x2C );
     WriteByteData( 0x2D );
+    
     WriteCmd( 0xB3 ); // frame control 3
     WriteByteData( 0x01 );
     WriteByteData( 0x2C );
@@ -72,21 +74,26 @@
     WriteByteData( 0x2D );
     
     WriteCmd( 0xB4 ); // column inversion
-    WriteByteData( 0x07 );
+    //WriteByteData( 0x07 );
+    WriteByteData( 0x00 );
 
     // ST7735R Power Sequence
     WriteCmd( 0xC0 ); // power control 1
     WriteByteData( 0xA2 );
     WriteByteData( 0x02 );
     WriteByteData( 0x84 );
+    
     WriteCmd( 0xC1 ); // power control 2
     WriteByteData( 0xC5 );
+    
     WriteCmd( 0xC2 ); // power control 3
     WriteByteData( 0x0A );
     WriteByteData( 0x00 );
+    
     WriteCmd( 0xC3 ); // power control 4
     WriteByteData( 0x8A );
     WriteByteData( 0x2A );
+    
     WriteCmd( 0xC4 ); // power control 5
     WriteByteData( 0x8A );
     WriteByteData( 0xEE );
@@ -94,9 +101,6 @@
     WriteCmd( 0xC5 ); // voltage control 1
     WriteByteData( 0x0E );
 
-    WriteCmd( 0x36 ); //MX, MY, RGB mode
-    WriteByteData( 0xC8 );
-
     // ST7735R Gamma Sequence
     WriteCmd( 0xE0 ); // gamma positive
     WriteByteData( 0x0F );
@@ -115,6 +119,7 @@
     WriteByteData( 0x07 );
     WriteByteData( 0x02 );
     WriteByteData( 0x10 );
+    
     WriteCmd( 0xE1 ); // gamma negative
     WriteByteData( 0x0F );
     WriteByteData( 0x1B );
@@ -138,6 +143,7 @@
     WriteByteData( 0x00 );
     WriteByteData( 0x00 );
     WriteByteData( 0x7F );
+    
     WriteCmd( 0x2B ); // set row address
     WriteByteData( 0x00 );
     WriteByteData( 0x00 );
@@ -146,11 +152,23 @@
 
     WriteCmd( 0xF0 ); // enable extensions command
     WriteByteData( 0x01 );
+    
     WriteCmd( 0xF6 ); // disable ram power save mode
     WriteByteData( 0x00 );
 
     WriteCmd( 0x3A ); // interface pixel format (color mode): 0x05 => RGB16, 0x06 => RGB18
     WriteByteData( _colorDepth == RGB16 ? 0x05 : 0x06 );
+
+    WriteCmd( 0x36 ); //MX, MY, RGB mode
+    switch ( _orientation )
+    {
+        case LANDSCAPE: WriteByteData( 0xB8 ); break;
+        case PORTRAIT_REV: WriteByteData( 0xDC ); break;
+        case LANDSCAPE_REV: WriteByteData( 0x6C ); break;
+        case PORTRAIT:
+        default: WriteByteData( 0x08 ); break;
+    }
+    
     WriteCmd( 0x29 ); // display on
 
     Deactivate();
@@ -201,15 +219,6 @@
 
 void ST7735_LCD::SetXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 )
 {
-    if ( _orientation == LANDSCAPE )
-    {
-        swap( uint16_t, x1, y1 )
-        swap( uint16_t, x2, y2 )
-        y1 = _disp_height - y1;
-        y2 = _disp_height - y2;
-        swap( uint16_t, y1, y2 )
-    }
-
     WriteCmdData( 0x2a, x1 );
     WriteData( x2 );
     WriteCmdData( 0x2b, y1 );