Diff: hx8340bs.cpp

Revision:

4:3ac4239f6c9c

Child:

9:58b328831d0a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hx8340bs.cpp	Sun Dec 02 05:44:52 2012 +0000
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C)2010-2012 Henning Karlsen. All right reserved.
+ * Copyright (C)2012 Todor Todorov.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to:
+ *
+ * Free Software Foundation, Inc.
+ * 51 Franklin St, 5th Floor, Boston, MA 02110-1301, USA
+ *
+ *********************************************************************/
+#include "hx8340bs.h"
+#include "helpers.h"
+
+HX8340S_LCD::HX8340S_LCD( PinName CS, PinName RESET, PinName SCL, PinName SDI, PinName BL )
+    : LCD( 176, 220, CS, NC, RESET ), _lcd_pin_scl( SCL ), _lcd_pin_sdi( SDI )
+{
+    if ( BL != NC ) _lcd_pin_bl = new DigitalOut( BL );
+    else _lcd_pin_bl = 0;
+}
+ 
+void HX8340S_LCD::Initialize( orientation_t orientation )
+{
+    _orientation = orientation;
+    
+    wait_ms( 100 );
+    _lcd_pin_reset = HIGH;
+    wait_ms( 5 );
+    _lcd_pin_reset = LOW;
+    wait_ms( 15 );
+    _lcd_pin_reset = HIGH;
+    _lcd_pin_cs = HIGH;
+    _lcd_pin_scl = HIGH;
+    _lcd_pin_sdi = HIGH;
+    if ( _lcd_pin_bl != 0 )
+        *_lcd_pin_bl = HIGH;
+    wait_ms( 55 );
+    
+    Activate();
+    WriteCmd( 0xC1 );
+    WriteByteData( 0xFF );
+    WriteByteData( 0x83 );
+    WriteByteData( 0x40 );
+    WriteCmd( 0x11 );
+    wait_ms( 160 );
+    WriteCmd( 0xCA );
+    WriteByteData( 0x70 );
+    WriteByteData( 0x00 );
+    WriteByteData( 0xD9 );
+    WriteCmd( 0xB0 );
+    WriteByteData( 0x01 );
+    WriteByteData( 0x11 );
+
+    WriteCmd( 0xC9 );
+    WriteByteData( 0x90 );
+    WriteByteData( 0x49 );
+    WriteByteData( 0x10 );
+    WriteByteData( 0x28 );
+    WriteByteData( 0x28 );
+    WriteByteData( 0x10 );
+    WriteByteData( 0x00 );
+    WriteByteData( 0x06 );
+    wait_ms( 20 );
+    WriteCmd( 0xC2 );
+    WriteByteData( 0x60 );
+    WriteByteData( 0x71 );
+    WriteByteData( 0x01 );
+    WriteByteData( 0x0E );
+    WriteByteData( 0x05 );
+    WriteByteData( 0x02 );
+    WriteByteData( 0x09 );
+    WriteByteData( 0x31 );
+    WriteByteData( 0x0A );
+
+    WriteCmd( 0xc3 );
+    WriteByteData( 0x67 );
+    WriteByteData( 0x30 );
+    WriteByteData( 0x61 );
+    WriteByteData( 0x17 );
+    WriteByteData( 0x48 );
+    WriteByteData( 0x07 );
+    WriteByteData( 0x05 );
+    WriteByteData( 0x33 );
+    wait_ms( 10 );
+    WriteCmd( 0xB5 );
+    WriteByteData( 0x35 );
+    WriteByteData( 0x20 );
+    WriteByteData( 0x45 );
+
+    WriteCmd( 0xB4 );
+    WriteByteData( 0x33 );
+    WriteByteData( 0x25 );
+    WriteByteData( 0x4c );
+    wait_ms( 10 );
+    WriteCmd( 0x3a );
+    WriteByteData( 0x05 );
+    WriteCmd( 0x29 );
+    wait_ms( 10 );
+    WriteCmd( 0x2a );
+    WriteByteData( 0x00 );
+    WriteByteData( 0x00 );
+    WriteByteData( 0x00 );
+    WriteByteData( 0xaf );
+    WriteCmd( 0x2b );
+    WriteByteData( 0x00 );
+    WriteByteData( 0x00 );
+    WriteByteData( 0x00 );
+    WriteByteData( 0xdb );
+    WriteCmd( 0x2c );
+    Deactivate();
+}
+
+void HX8340S_LCD::Sleep( void )
+{
+    Activate();
+    WriteCmd( 0x28 );
+    wait_ms( 10 );
+    WriteCmd( 0x10 );
+    wait_ms( 125 );
+    if ( _lcd_pin_bl != 0 )
+        *_lcd_pin_bl = LOW;
+    Deactivate();
+}
+
+void HX8340S_LCD::WakeUp( void )
+{
+    Activate();
+    WriteCmd( 0x29 );
+    wait_ms( 10 );
+    WriteCmd( 0x11 );
+    wait_ms( 125 );
+    if ( _lcd_pin_bl != 0 )
+        *_lcd_pin_bl = HIGH;
+    Deactivate();
+}
+
+void HX8340S_LCD::WriteCmd( unsigned short cmd )
+{
+    _lcd_pin_sdi = LOW;
+    pulseLow( _lcd_pin_scl );
+    serializeByte( cmd & 0xFF );
+}
+
+void HX8340S_LCD::WriteData( unsigned short data )
+{
+    _lcd_pin_sdi = HIGH;
+    pulseLow( _lcd_pin_scl );
+    serializeByte( ( data >> 8 ) & 0xFF );
+    _lcd_pin_sdi = HIGH;
+    pulseLow( _lcd_pin_scl );
+    serializeByte( data & 0xFF );
+}
+
+void HX8340S_LCD::WriteByteData( unsigned char data )
+{
+    _lcd_pin_sdi = HIGH;
+    pulseLow( _lcd_pin_scl );
+    serializeByte( data );
+}
+
+void HX8340S_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 );
+    WriteData( y2 );
+    WriteCmd( 0x2c );
+}
+
+void HX8340S_LCD::serializeByte( unsigned char data )
+{
+    for ( int i = 0; i < 8; i++ )
+    {
+        if ( data & 0x80 ) _lcd_pin_sdi = HIGH;
+        else _lcd_pin_sdi = LOW;
+        pulseLow( _lcd_pin_scl );
+        data = data << 1;
+    }
+}