Diff: ili9325.cpp

Revision:

28:8808898a7f0c

Child:

29:060b167a46ba

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ili9325.cpp	Sun Apr 06 15:07:50 2014 +0000
@@ -0,0 +1,311 @@
+/*
+ * Copyright (C)2010-2012 Henning Karlsen. All right reserved.
+ * Copyright (C)2012-2013 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 "ili9325.h"
+#include "helpers.h"
+
+ILI9328_LCD::ILI9328_LCD( PinName CS, PinName RESET, PinName RS, PinName WR, BusOut* DATA_PORT, PinName BL, PinName RD, backlight_t blType, float defaultBackLightLevel )
+    : LCD( 240, 320, CS, RS, RESET, BL, blType, defaultBackLightLevel ), _lcd_pin_wr( WR )
+{
+    _lcd_port = DATA_PORT;
+    if ( RD != NC ) _lcd_pin_rd = new DigitalOut( RD );
+    else _lcd_pin_rd = 0;
+}
+
+void ILI9328_LCD::Initialize( orientation_t orientation, colordepth_t colors )
+{
+    _orientation = orientation;
+    _colorDepth = colors;
+    
+    _lcd_pin_reset = HIGH;
+    wait_ms( 50 );
+    _lcd_pin_reset = LOW;
+    wait_ms( 100 );
+    _lcd_pin_reset = HIGH;
+    wait_ms( 1000 );
+    _lcd_pin_cs = HIGH;
+    if ( _lcd_pin_bl != 0 )
+        *_lcd_pin_bl = HIGH;
+    else if ( _bl_pwm != 0 )
+        *_bl_pwm = _bl_pwm_default;
+    if ( _lcd_pin_rd != 0 )
+        *_lcd_pin_rd = HIGH;
+    _lcd_pin_wr = HIGH;
+    wait_ms( 15 );
+    
+    Activate();
+    
+    short drivOut = 0;
+    short entryMod = 0;
+    short gateScan = 0x2700;
+    switch ( _orientation )
+    {
+        case LANDSCAPE:
+            drivOut = 0x0100;
+            entryMod |= 0x0038;
+            gateScan |= 0x0000;
+            break;
+            
+        case LANDSCAPE_REV:
+            drivOut = 0x0000;
+            entryMod |= 0x0038;
+            gateScan |= 0x8000;
+            break;
+            
+        case PORTRAIT_REV:
+            drivOut = 0x0000;
+            entryMod |= 0x0030;
+            gateScan |= 0x0000;
+            break;
+            
+        case PORTRAIT:
+        default:
+            drivOut = 0x0100;
+            entryMod |= 0x0030;
+            gateScan |= 0x8000;
+            break;
+    }
+    switch ( _colorDepth )
+    {
+        case RGB18:
+            entryMod |= 0x9000;
+            break;
+            
+        case RGB16:
+        default:
+            entryMod |= 0x1000;
+            break;
+    }
+    
+    WriteCmdData( 0xE5, 0x78F0 ); // set SRAM internal timing
+    WriteCmdData( 0x01, drivOut ); // set Driver Output Control
+    WriteCmdData( 0x02, 0x0200 ); // set 1 line inversion
+    WriteCmdData( 0x03, entryMod ); // set GRAM write direction and BGR=1.
+    WriteCmdData( 0x04, 0x0000 ); // Resize register
+    WriteCmdData( 0x08, 0x0207 ); // set the back porch and front porch
+    WriteCmdData( 0x09, 0x0000 ); // set non-display area refresh cycle ISC[3:0]
+    WriteCmdData( 0x0A, 0x0000 ); // FMARK function
+    WriteCmdData( 0x0C, 0x0000 ); // RGB interface setting
+    WriteCmdData( 0x0D, 0x0000 ); // Frame marker Position
+    WriteCmdData( 0x0F, 0x0000 ); // RGB interface polarity
+    // ----------- Power On sequence ----------- //
+    WriteCmdData( 0x10, 0x0000 ); // SAP, BT[3:0], AP, DSTB, SLP, STB
+    WriteCmdData( 0x11, 0x0007 ); // DC1[2:0], DC0[2:0], VC[2:0]
+    WriteCmdData( 0x12, 0x0000 ); // VREG1OUT voltage
+    WriteCmdData( 0x13, 0x0000 ); // VDV[4:0] for VCOM amplitude
+    WriteCmdData( 0x07, 0x0001 );
+    wait_ms( 200 ); // Dis-charge capacitor power voltage
+    WriteCmdData( 0x10, 0x1690 ); // SAP, BT[3:0], AP, DSTB, SLP, STB
+    WriteCmdData( 0x11, 0x0227 ); // Set DC1[2:0], DC0[2:0], VC[2:0]
+    wait_ms( 50 ); // Delay 50ms
+    WriteCmdData( 0x12, 0x000D ); // 0012
+    wait_ms( 50 ); // Delay 50ms
+    WriteCmdData( 0x13, 0x1200 ); // VDV[4:0] for VCOM amplitude
+    WriteCmdData( 0x29, 0x000A ); // 04  VCM[5:0] for VCOMH
+    WriteCmdData( 0x2B, 0x000D ); // Set Frame Rate
+    wait_ms( 50 ); // Delay 50ms
+    WriteCmdData( 0x20, 0x0000 ); // GRAM horizontal Address
+    WriteCmdData( 0x21, 0x0000 ); // GRAM Vertical Address
+    // ----------- Adjust the Gamma Curve ----------//
+    WriteCmdData( 0x30, 0x0000 );
+    WriteCmdData( 0x31, 0x0404 );
+    WriteCmdData( 0x32, 0x0003 );
+    WriteCmdData( 0x35, 0x0405 );
+    WriteCmdData( 0x36, 0x0808 );
+    WriteCmdData( 0x37, 0x0407 );
+    WriteCmdData( 0x38, 0x0303 );
+    WriteCmdData( 0x39, 0x0707 );
+    WriteCmdData( 0x3C, 0x0504 );
+    WriteCmdData( 0x3D, 0x0808 );
+    //------------------ Set GRAM area ---------------//
+    WriteCmdData( 0x50, 0x0000 ); // Horizontal GRAM Start Address
+    WriteCmdData( 0x51, 0x00EF ); // Horizontal GRAM End Address
+    WriteCmdData( 0x52, 0x0000 ); // Vertical GRAM Start Address
+    WriteCmdData( 0x53, 0x013F ); // Vertical GRAM Start Address
+    WriteCmdData( 0x60, gateScan ); // Gate Scan Line (0xA700)
+    WriteCmdData( 0x61, 0x0000 ); // NDL,VLE, REV
+    WriteCmdData( 0x6A, 0x0000 ); // set scrolling line
+    //-------------- Partial Display Control ---------//
+    WriteCmdData( 0x80, 0x0000 );
+    WriteCmdData( 0x81, 0x0000 );
+    WriteCmdData( 0x82, 0x0000 );
+    WriteCmdData( 0x83, 0x0000 );
+    WriteCmdData( 0x84, 0x0000 );
+    WriteCmdData( 0x85, 0x0000 );
+    //-------------- Panel Control -------------------//
+    WriteCmdData( 0x90, 0x0010 ); 
+    WriteCmdData( 0x92, 0x0000 );
+    WriteCmdData( 0x07, 0x0133 ); // 262K color and display ON
+    
+    Deactivate();
+}
+
+void ILI9328_LCD::Sleep( void )
+{
+    Activate();
+    WriteCmdData( 0x10, 0x1692 ); // enter sleep mode
+    wait_ms( 200 );
+    LCD::Sleep();
+    Deactivate();
+}
+
+void ILI9328_LCD::WakeUp( void )
+{
+    Activate();
+    WriteCmdData( 0x10, 0x1690 ); // exit sleep mode
+    wait_ms( 200 );
+    LCD::WakeUp();
+    Deactivate();
+}
+
+void ILI9328_LCD::WriteCmd( unsigned short cmd )
+{
+
+    unsigned short u,l;
+    u = (cmd>>8) & 0xFF;
+    l = cmd & 0xFF;
+
+//New
+    _lcd_pin_cs = LOW;
+//
+    _lcd_pin_rs = LOW;
+
+//New
+    *_lcd_pin_rd = HIGH;    
+    _lcd_pin_wr = HIGH;  
+//
+    _lcd_port->write( u );
+    pulseLow( _lcd_pin_wr );
+
+    _lcd_port->write( l );
+    pulseLow( _lcd_pin_wr );
+
+//New
+    _lcd_pin_cs = HIGH;
+//
+}
+
+void ILI9328_LCD::WriteData( unsigned short data )
+{
+    unsigned short u,l;
+    u = (data>>8) & 0xFF;
+    l = data & 0xFF;
+    
+//New
+    _lcd_pin_cs = LOW;
+//
+    _lcd_pin_rs = HIGH;
+//New
+    *_lcd_pin_rd = HIGH;    
+    _lcd_pin_wr = HIGH;  
+//
+    _lcd_port->write( u );
+    pulseLow( _lcd_pin_wr );
+
+    _lcd_port->write( l );
+    pulseLow( _lcd_pin_wr );
+
+//New
+    _lcd_pin_cs = HIGH;
+//
+}
+
+void ILI9328_LCD::SetXY( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2 )
+{
+    switch ( _orientation )
+    {
+        case LANDSCAPE:
+        case LANDSCAPE_REV:
+            WriteCmdData( 0x20, y1 );
+            WriteCmdData( 0x21, x1 );
+            WriteCmdData( 0x50, y1 );
+            WriteCmdData( 0x52, x1 );
+            WriteCmdData( 0x51, y2 );
+            WriteCmdData( 0x53, x2 );
+            break;
+            
+        case PORTRAIT_REV:
+        case PORTRAIT:
+        default:
+            WriteCmdData( 0x20, x1 );
+            WriteCmdData( 0x21, y1 );
+            WriteCmdData( 0x50, x1 );
+            WriteCmdData( 0x52, y1 );
+            WriteCmdData( 0x51, x2 );
+            WriteCmdData( 0x53, y2 );
+            break;
+    }
+    WriteCmd( 0x22 );
+}
+
+void ILI9328_LCD::SetPixelColor( unsigned int color, colordepth_t mode )
+{
+    unsigned char r, g, b;
+    unsigned short clr;
+    r = g = b = 0;
+    if ( _colorDepth == RGB16 )
+    {
+        switch ( mode )
+        {
+            case RGB16:
+                WriteData( color & 0xFFFF );
+                break;
+            case RGB18:
+                r = ( color >> 10 ) & 0xF8;
+                g = ( color >> 4 ) & 0xFC;
+                b = ( color >> 1 ) & 0x1F;
+                clr = ( ( r | ( g >> 5 ) ) << 8 ) | ( ( g << 3 ) | b );
+                WriteData( clr );
+                break;
+            case RGB24:
+                r = ( color >> 16 ) & 0xF8;
+                g = ( color >> 8 ) & 0xFC;
+                b = color & 0xF8;
+                clr = ( ( r | ( g >> 5 ) ) << 8 ) | ( ( g << 3 ) | ( b >> 3 ) );
+                WriteData( clr );
+                break;
+        }
+    }
+    else if ( _colorDepth == RGB18 )
+    {
+        switch ( mode )
+        {
+            case RGB16:
+                r = ( ( color >> 8 ) & 0xF8 ) | ( ( color & 0x8000 ) >> 13 );
+                g = ( color >> 3 ) & 0xFC;
+                b = ( ( color << 3 ) & 0xFC ) | ( ( color >> 3 ) & 0x01 );
+                break;
+            case RGB18:
+                b = ( color << 2 ) & 0xFC;
+                g = ( color >> 4 ) & 0xFC;
+                r = ( color >> 10 ) & 0xFC;
+                break;
+            case RGB24:
+                r = ( color >> 16 ) & 0xFC;
+                g = ( color >> 8 ) & 0xFC;
+                b = color & 0xFC;
+                break;
+        }
+        clr = ( r << 8 ) | ( g << 2 ) | ( b >> 4 );
+        WriteData( clr );
+        WriteData( b << 4 );
+    }
+}