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: ssd1289.cpp

Revision:
15:af3cd35886fb
Parent:
12:d0978272a340
Child:
16:4ccc2fa2cfec
--- a/ssd1289.cpp	Tue Dec 11 20:52:22 2012 +0000
+++ b/ssd1289.cpp	Tue Dec 11 23:42:47 2012 +0000
@@ -35,7 +35,7 @@
 void SSD1289_LCD::Initialize( orientation_t orientation, colordepth_t colors )
 {
     _orientation = orientation;
-    _colorDepth = RGB16;
+    _colorDepth = colors;
     
     _lcd_pin_reset = HIGH;
     wait_ms( 5 );
@@ -51,48 +51,126 @@
     wait_ms( 15 );
     
     Activate();
-    WriteCmdData( 0x00, 0x0001 ); wait_ms( 1 );
-    WriteCmdData( 0x03, 0xA8A4 ); wait_ms( 1 );
-    WriteCmdData( 0x0C, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x0D, 0x080C ); wait_ms( 1 );
-    WriteCmdData( 0x0E, 0x2B00 ); wait_ms( 1 );
-    WriteCmdData( 0x1E, 0x00B7 ); wait_ms( 1 );
-    WriteCmdData( 0x01, 0x2B3F ); wait_ms( 1 );
-    WriteCmdData( 0x02, 0x0600 ); wait_ms( 1 );
-    WriteCmdData( 0x10, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x11, 0x6070 ); wait_ms( 1 );
-    WriteCmdData( 0x05, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x06, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x16, 0xEF1C ); wait_ms( 1 );
-    WriteCmdData( 0x17, 0x0003 ); wait_ms( 1 );
-    WriteCmdData( 0x07, 0x0233 ); wait_ms( 1 );
-    WriteCmdData( 0x0B, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x0F, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x41, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x42, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x48, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x49, 0x013F ); wait_ms( 1 );
-    WriteCmdData( 0x4A, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x4B, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x44, 0xEF00 ); wait_ms( 1 );
-    WriteCmdData( 0x45, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x46, 0x013F ); wait_ms( 1 );
-    WriteCmdData( 0x30, 0x0707 ); wait_ms( 1 );
-    WriteCmdData( 0x31, 0x0204 ); wait_ms( 1 );
-    WriteCmdData( 0x32, 0x0204 ); wait_ms( 1 );
-    WriteCmdData( 0x33, 0x0502 ); wait_ms( 1 );
-    WriteCmdData( 0x34, 0x0507 ); wait_ms( 1 );
-    WriteCmdData( 0x35, 0x0204 ); wait_ms( 1 );
-    WriteCmdData( 0x36, 0x0204 ); wait_ms( 1 );
-    WriteCmdData( 0x37, 0x0502 ); wait_ms( 1 );
-    WriteCmdData( 0x3A, 0x0302 ); wait_ms( 1 );
-    WriteCmdData( 0x3B, 0x0302 ); wait_ms( 1 );
-    WriteCmdData( 0x23, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x24, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x25, 0x8000 ); wait_ms( 1 );
-    WriteCmdData( 0x4f, 0x0000 ); wait_ms( 1 );
-    WriteCmdData( 0x4e, 0x0000 ); wait_ms( 1 );
-    WriteCmd( 0x22 );
+    WriteCmdData( 0x00, 0x0001 ); // oscillator: 1 = on, 0 = off
+    wait_ms( 1 );
+    WriteCmdData( 0x03, 0xA8A4 ); // power control
+    wait_ms( 1 );
+    WriteCmdData( 0x0C, 0x0000 ); // power control 2
+    wait_ms( 1 );
+    WriteCmdData( 0x0D, 0x080C ); // power control 3
+    wait_ms( 1 );
+    WriteCmdData( 0x0E, 0x2B00 ); // power control 4
+    wait_ms( 1 );
+    WriteCmdData( 0x1E, 0x00B7 ); // power control 5
+    wait_ms( 1 );
+    WriteCmdData( 0x01, 0x2B3F ); // driver output control
+    wait_ms( 1 );
+    WriteCmdData( 0x02, 0x0600 ); // driving waveform control
+    wait_ms( 1 );
+    WriteCmdData( 0x10, 0x0000 ); // sleep mode: 0 = exit, 1 = enter
+    wait_ms( 1 );
+    if ( _colorDepth == RGB16 )
+    {
+        switch ( _orientation )
+        {
+            case LANDSCAPE:
+                WriteCmdData( 0x11, 0x6098 ); // entry mode
+                break;
+            case PORTRAIT_REV:
+                WriteCmdData( 0x11, 0x6080 ); // entry mode
+                break;
+            case LANDSCAPE_REV:
+                WriteCmdData( 0x11, 0x60A8 ); // entry mode
+                break;
+            case PORTRAIT:
+            default:
+                WriteCmdData( 0x11, 0x60B0 ); // entry mode
+                break;
+        }
+    }
+    else if ( _colorDepth == RGB18 )
+    {
+        switch ( _orientation )
+        {
+            case LANDSCAPE:
+                WriteCmdData( 0x11, 0x4098 ); // entry mode
+                break;
+            case PORTRAIT_REV:
+                WriteCmdData( 0x11, 0x4080 ); // entry mode
+                break;
+            case LANDSCAPE_REV:
+                WriteCmdData( 0x11, 0x40A8 ); // entry mode
+                break;
+            case PORTRAIT:
+            default:
+                WriteCmdData( 0x11, 0x40B0 ); // entry mode
+                break;
+        }
+    }
+    wait_ms( 1 );
+    WriteCmdData( 0x05, 0x0000 ); // compare register
+    wait_ms( 1 );
+    WriteCmdData( 0x06, 0x0000 ); // compare register
+    wait_ms( 1 );
+    WriteCmdData( 0x16, 0xEF1C ); // horizontal porch
+    wait_ms( 1 );
+    WriteCmdData( 0x17, 0x0003 ); // vertical porch
+    wait_ms( 1 );
+    WriteCmdData( 0x07, 0x0233 ); // display control
+    wait_ms( 1 );
+    WriteCmdData( 0x0B, 0x0000 ); // frame cycle control
+    wait_ms( 1 );
+    WriteCmdData( 0x0F, 0x0000 ); // gate scan position
+    wait_ms( 1 );
+    WriteCmdData( 0x41, 0x0000 ); // vertical scroll control
+    wait_ms( 1 );
+    WriteCmdData( 0x42, 0x0000 ); // vertical scroll control
+    wait_ms( 1 );
+    WriteCmdData( 0x48, 0x0000 ); // 1st screen driving position
+    wait_ms( 1 );
+    WriteCmdData( 0x49, 0x013F ); // 1st screen driving position
+    wait_ms( 1 );
+    WriteCmdData( 0x4A, 0x0000 ); // 2nd screen driving position
+    wait_ms( 1 );
+    WriteCmdData( 0x4B, 0x0000 ); // 2nd screen driving position
+    wait_ms( 1 );
+    WriteCmdData( 0x44, 0xEF00 ); // horizontal ram address position
+    wait_ms( 1 );
+    WriteCmdData( 0x45, 0x0000 ); // vertical ram address position
+    wait_ms( 1 );
+    WriteCmdData( 0x46, 0x013F ); // vertical ram address position
+    wait_ms( 1 );
+    WriteCmdData( 0x30, 0x0707 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x31, 0x0204 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x32, 0x0204 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x33, 0x0502 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x34, 0x0507 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x35, 0x0204 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x36, 0x0204 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x37, 0x0502 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x3A, 0x0302 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x3B, 0x0302 ); // gamma control
+    wait_ms( 1 );
+    WriteCmdData( 0x23, 0x0000 ); // GRAM write mask for red and green pins
+    wait_ms( 1 );
+    WriteCmdData( 0x24, 0x0000 ); // GRAM write mask for blue pins
+    wait_ms( 1 );
+    WriteCmdData( 0x25, 0x8000 ); // frame frequency control
+    wait_ms( 1 );
+    WriteCmdData( 0x4e, 0x0000 ); // ram address set
+    wait_ms( 1 );
+    WriteCmdData( 0x4f, 0x0000 ); // ram address set
+    wait_ms( 1 );
+    WriteCmd( 0x22 ); // write GRAM
     Deactivate();
 }
 
@@ -126,15 +204,6 @@
 
 void SSD1289_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( 0x44, ( x2 << 8 ) + x1 );
     WriteCmdData( 0x45, y1 );
     WriteCmdData( 0x46, y2 );
@@ -149,6 +218,12 @@
     r = ( color >> 16 ) & 0xFF;
     g = ( color >> 8 ) & 0xFF;
     b = color & 0xFF;
-    unsigned short clr = ( ( ( ( r ) & 0xF8 ) | ( ( g ) >> 5 ) ) << 8 ) | ( ( ( ( g ) & 0x1C ) << 3 ) | ( ( b ) >> 3 ) );
-    WriteData( clr );
+    if ( _colorDepth == RGB16 )
+    {
+        unsigned short clr = ( ( ( ( r ) & 0xF8 ) | ( ( g ) >> 5 ) ) << 8 ) | ( ( ( ( g ) & 0x1C ) << 3 ) | ( ( b ) >> 3 ) );
+        WriteData( clr );
+    }
+    else if ( _colorDepth == RGB18 )
+    {
+    }
 }