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:
4:3ac4239f6c9c
Parent:
3:64a5b67d5b51
Child:
10:69571adcfad5
--- a/ssd1289.cpp	Sun Dec 02 01:44:23 2012 +0000
+++ b/ssd1289.cpp	Sun Dec 02 05:44:52 2012 +0000
@@ -22,21 +22,17 @@
 #include "ssd1289.h"
 #include "helpers.h"
 
-SSD1289LCD::SSD1289LCD( PinName CS, PinName RESET, PinName RS, PinName WR, BusOut* DATA_PORT, PinName RD )
-    : LCD( 240, 320, CS, RS ), _lcd_pin_reset( RESET ), _lcd_pin_wr( WR )
+SSD1289_LCD::SSD1289_LCD( PinName CS, PinName RESET, PinName RS, PinName WR, BusOut* DATA_PORT, PinName BL, PinName RD )
+    : LCD( 240, 320, CS, RS, RESET ), _lcd_pin_wr( WR )
 {
     _lcd_port = DATA_PORT;
-    if ( RD != NC )
-        _lcd_pin_rd = new DigitalOut( RD );
-    else
-        _lcd_pin_rd = 0;
-    
-    SetForeground();
-    SetBackground();
-    _font.font = 0;
+    if ( BL != NC ) _lcd_pin_bl = new DigitalOut( BL );
+    else _lcd_pin_bl = 0;
+    if ( RD != NC ) _lcd_pin_rd = new DigitalOut( RD );
+    else _lcd_pin_rd = 0;
 }
 
-void SSD1289LCD::Initialize( orientation_t orientation )
+void SSD1289_LCD::Initialize( orientation_t orientation )
 {
     _orientation = orientation;
     
@@ -46,12 +42,14 @@
     wait_ms( 15 );
     _lcd_pin_reset = HIGH;
     _lcd_pin_cs = HIGH;
+    if ( _lcd_pin_bl != 0 )
+        *_lcd_pin_bl = HIGH;
     if ( _lcd_pin_rd != 0 )
         *_lcd_pin_rd = HIGH;
     _lcd_pin_wr = HIGH;
     wait_ms( 15 );
     
-    
+    Activate();
     WriteCmdData( 0x00, 0x0001 ); wait_ms( 1 );
     WriteCmdData( 0x03, 0xA8A4 ); wait_ms( 1 );
     WriteCmdData( 0x0C, 0x0000 ); wait_ms( 1 );
@@ -94,27 +92,38 @@
     WriteCmdData( 0x4f, 0x0000 ); wait_ms( 1 );
     WriteCmdData( 0x4e, 0x0000 ); wait_ms( 1 );
     WriteCmd( 0x22 );
+    Deactivate();
 }
 
-void SSD1289LCD::WriteCmd( unsigned short cmd )
+void SSD1289_LCD::Sleep( void )
 {
-    _lcd_pin_rs = LOW;
-    _lcd_pin_cs = LOW;
-    _lcd_port->write( cmd );
-    pulseLow( _lcd_pin_wr );
-    _lcd_pin_cs = HIGH;
+    // TODO: figure out if the SSD1289 controller has sleep and wakeup commands
+    if ( _lcd_pin_bl != 0 )
+        *_lcd_pin_bl = LOW;
 }
 
-void SSD1289LCD::WriteData( unsigned short data )
+void SSD1289_LCD::WakeUp( void )
+{
+    // TODO: figure out if the SSD1289 controller has sleep and wakeup commands
+    if ( _lcd_pin_bl != 0 )
+        *_lcd_pin_bl = HIGH;
+}
+
+void SSD1289_LCD::WriteCmd( unsigned short cmd )
+{
+    _lcd_pin_rs = LOW;
+    _lcd_port->write( cmd );
+    pulseLow( _lcd_pin_wr );
+}
+
+void SSD1289_LCD::WriteData( unsigned short data )
 {
     _lcd_pin_rs = HIGH;
-    _lcd_pin_cs = LOW;
     _lcd_port->write( data );
     pulseLow( _lcd_pin_wr );
-    _lcd_pin_cs = HIGH;
 }
 
-void SSD1289LCD::SetXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 )
+void SSD1289_LCD::SetXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 )
 {
     if ( _orientation == LANDSCAPE )
     {