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

ili9328.cpp@26:28f64fbcf7df, 2013-06-16 (annotated)

Committer:
ttodorov
Date:
Sun Jun 16 03:36:07 2013 +0000
Revision:
26:28f64fbcf7df
Parent:
25:6cffb758c075
Child:
27:26491d710e72
- fixed 18bit color depth (262k colors available)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ttodorov 23:eca4414196ca 1 /*
ttodorov 23:eca4414196ca 2 * Copyright (C)2010-2012 Henning Karlsen. All right reserved.
ttodorov 23:eca4414196ca 3 * Copyright (C)2012-2013 Todor Todorov.
ttodorov 23:eca4414196ca 4 *
ttodorov 23:eca4414196ca 5 * This library is free software; you can redistribute it and/or
ttodorov 23:eca4414196ca 6 * modify it under the terms of the GNU Lesser General Public
ttodorov 23:eca4414196ca 7 * License as published by the Free Software Foundation; either
ttodorov 23:eca4414196ca 8 * version 2.1 of the License, or (at your option) any later version.
ttodorov 23:eca4414196ca 9 *
ttodorov 23:eca4414196ca 10 * This library is distributed in the hope that it will be useful,
ttodorov 23:eca4414196ca 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
ttodorov 23:eca4414196ca 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
ttodorov 23:eca4414196ca 13 * Lesser General Public License for more details.
ttodorov 23:eca4414196ca 14 *
ttodorov 23:eca4414196ca 15 * You should have received a copy of the GNU Lesser General Public
ttodorov 23:eca4414196ca 16 * License along with this library; if not, write to:
ttodorov 23:eca4414196ca 17 *
ttodorov 23:eca4414196ca 18 * Free Software Foundation, Inc.
ttodorov 23:eca4414196ca 19 * 51 Franklin St, 5th Floor, Boston, MA 02110-1301, USA
ttodorov 23:eca4414196ca 20 *
ttodorov 23:eca4414196ca 21 *********************************************************************/
ttodorov 23:eca4414196ca 22 #include "ili9328.h"
ttodorov 23:eca4414196ca 23 #include "helpers.h"
ttodorov 23:eca4414196ca 24
ttodorov 23:eca4414196ca 25 ILI9328_LCD::ILI9328_LCD( PinName CS, PinName RESET, PinName RS, PinName WR, BusOut* DATA_PORT, PinName BL, PinName RD, backlight_t blType, float defaultBackLightLevel )
ttodorov 23:eca4414196ca 26 : LCD( 240, 320, CS, RS, RESET, BL, blType, defaultBackLightLevel ), _lcd_pin_wr( WR )
ttodorov 23:eca4414196ca 27 {
ttodorov 23:eca4414196ca 28 _lcd_port = DATA_PORT;
ttodorov 23:eca4414196ca 29 if ( RD != NC ) _lcd_pin_rd = new DigitalOut( RD );
ttodorov 23:eca4414196ca 30 else _lcd_pin_rd = 0;
ttodorov 23:eca4414196ca 31 }
ttodorov 23:eca4414196ca 32
ttodorov 23:eca4414196ca 33 void ILI9328_LCD::Initialize( orientation_t orientation, colordepth_t colors )
ttodorov 23:eca4414196ca 34 {
ttodorov 23:eca4414196ca 35 _orientation = orientation;
ttodorov 23:eca4414196ca 36 _colorDepth = colors;
ttodorov 23:eca4414196ca 37
ttodorov 23:eca4414196ca 38 _lcd_pin_reset = HIGH;
ttodorov 23:eca4414196ca 39 wait_ms( 50 );
ttodorov 23:eca4414196ca 40 _lcd_pin_reset = LOW;
ttodorov 23:eca4414196ca 41 wait_ms( 100 );
ttodorov 23:eca4414196ca 42 _lcd_pin_reset = HIGH;
ttodorov 23:eca4414196ca 43 wait_ms( 1000 );
ttodorov 23:eca4414196ca 44 _lcd_pin_cs = HIGH;
ttodorov 23:eca4414196ca 45 if ( _lcd_pin_bl != 0 )
ttodorov 23:eca4414196ca 46 *_lcd_pin_bl = HIGH;
ttodorov 23:eca4414196ca 47 else if ( _bl_pwm != 0 )
ttodorov 23:eca4414196ca 48 *_bl_pwm = _bl_pwm_default;
ttodorov 23:eca4414196ca 49 if ( _lcd_pin_rd != 0 )
ttodorov 23:eca4414196ca 50 *_lcd_pin_rd = HIGH;
ttodorov 23:eca4414196ca 51 _lcd_pin_wr = HIGH;
ttodorov 23:eca4414196ca 52 wait_ms( 15 );
ttodorov 23:eca4414196ca 53
ttodorov 23:eca4414196ca 54 Activate();
ttodorov 25:6cffb758c075 55
ttodorov 25:6cffb758c075 56 short drivOut = 0;
ttodorov 25:6cffb758c075 57 short entryMod = 0;
ttodorov 25:6cffb758c075 58 short gateScan = 0x2700;
ttodorov 24:ac6e35658037 59 switch ( _orientation )
ttodorov 24:ac6e35658037 60 {
ttodorov 25:6cffb758c075 61 case LANDSCAPE:
ttodorov 25:6cffb758c075 62 drivOut = 0x0100;
ttodorov 25:6cffb758c075 63 entryMod |= 0x0038;
ttodorov 25:6cffb758c075 64 gateScan |= 0x0000;
ttodorov 25:6cffb758c075 65 break;
ttodorov 25:6cffb758c075 66
ttodorov 25:6cffb758c075 67 case LANDSCAPE_REV:
ttodorov 25:6cffb758c075 68 drivOut = 0x0000;
ttodorov 25:6cffb758c075 69 entryMod |= 0x0038;
ttodorov 25:6cffb758c075 70 gateScan |= 0x8000;
ttodorov 25:6cffb758c075 71 break;
ttodorov 25:6cffb758c075 72
ttodorov 25:6cffb758c075 73 case PORTRAIT_REV:
ttodorov 25:6cffb758c075 74 drivOut = 0x0000;
ttodorov 25:6cffb758c075 75 entryMod |= 0x0030;
ttodorov 25:6cffb758c075 76 gateScan |= 0x0000;
ttodorov 25:6cffb758c075 77 break;
ttodorov 25:6cffb758c075 78
ttodorov 24:ac6e35658037 79 case PORTRAIT:
ttodorov 24:ac6e35658037 80 default:
ttodorov 25:6cffb758c075 81 drivOut = 0x0100;
ttodorov 25:6cffb758c075 82 entryMod |= 0x0030;
ttodorov 25:6cffb758c075 83 gateScan |= 0x8000;
ttodorov 24:ac6e35658037 84 break;
ttodorov 24:ac6e35658037 85 }
ttodorov 24:ac6e35658037 86 switch ( _colorDepth )
ttodorov 24:ac6e35658037 87 {
ttodorov 26:28f64fbcf7df 88 case RGB18:
ttodorov 26:28f64fbcf7df 89 entryMod |= 0x9000;
ttodorov 26:28f64fbcf7df 90 break;
ttodorov 26:28f64fbcf7df 91
ttodorov 24:ac6e35658037 92 case RGB16:
ttodorov 24:ac6e35658037 93 default:
ttodorov 25:6cffb758c075 94 entryMod |= 0x1000;
ttodorov 24:ac6e35658037 95 break;
ttodorov 24:ac6e35658037 96 }
ttodorov 24:ac6e35658037 97
ttodorov 24:ac6e35658037 98 WriteCmdData( 0xE5, 0x78F0 ); // set SRAM internal timing
ttodorov 25:6cffb758c075 99 WriteCmdData( 0x01, drivOut ); // set Driver Output Control
ttodorov 24:ac6e35658037 100 WriteCmdData( 0x02, 0x0200 ); // set 1 line inversion
ttodorov 25:6cffb758c075 101 WriteCmdData( 0x03, entryMod ); // set GRAM write direction and BGR=1.
ttodorov 24:ac6e35658037 102 WriteCmdData( 0x04, 0x0000 ); // Resize register
ttodorov 24:ac6e35658037 103 WriteCmdData( 0x08, 0x0207 ); // set the back porch and front porch
ttodorov 24:ac6e35658037 104 WriteCmdData( 0x09, 0x0000 ); // set non-display area refresh cycle ISC[3:0]
ttodorov 24:ac6e35658037 105 WriteCmdData( 0x0A, 0x0000 ); // FMARK function
ttodorov 24:ac6e35658037 106 WriteCmdData( 0x0C, 0x0000 ); // RGB interface setting
ttodorov 24:ac6e35658037 107 WriteCmdData( 0x0D, 0x0000 ); // Frame marker Position
ttodorov 24:ac6e35658037 108 WriteCmdData( 0x0F, 0x0000 ); // RGB interface polarity
ttodorov 24:ac6e35658037 109 // ----------- Power On sequence ----------- //
ttodorov 24:ac6e35658037 110 WriteCmdData( 0x10, 0x0000 ); // SAP, BT[3:0], AP, DSTB, SLP, STB
ttodorov 24:ac6e35658037 111 WriteCmdData( 0x11, 0x0007 ); // DC1[2:0], DC0[2:0], VC[2:0]
ttodorov 24:ac6e35658037 112 WriteCmdData( 0x12, 0x0000 ); // VREG1OUT voltage
ttodorov 24:ac6e35658037 113 WriteCmdData( 0x13, 0x0000 ); // VDV[4:0] for VCOM amplitude
ttodorov 24:ac6e35658037 114 WriteCmdData( 0x07, 0x0001 );
ttodorov 24:ac6e35658037 115 wait_ms( 200 ); // Dis-charge capacitor power voltage
ttodorov 24:ac6e35658037 116 WriteCmdData( 0x10, 0x1690 ); // SAP, BT[3:0], AP, DSTB, SLP, STB
ttodorov 24:ac6e35658037 117 WriteCmdData( 0x11, 0x0227 ); // Set DC1[2:0], DC0[2:0], VC[2:0]
ttodorov 24:ac6e35658037 118 wait_ms( 50 ); // Delay 50ms
ttodorov 24:ac6e35658037 119 WriteCmdData( 0x12, 0x000D ); // 0012
ttodorov 24:ac6e35658037 120 wait_ms( 50 ); // Delay 50ms
ttodorov 24:ac6e35658037 121 WriteCmdData( 0x13, 0x1200 ); // VDV[4:0] for VCOM amplitude
ttodorov 24:ac6e35658037 122 WriteCmdData( 0x29, 0x000A ); // 04 VCM[5:0] for VCOMH
ttodorov 24:ac6e35658037 123 WriteCmdData( 0x2B, 0x000D ); // Set Frame Rate
ttodorov 24:ac6e35658037 124 wait_ms( 50 ); // Delay 50ms
ttodorov 24:ac6e35658037 125 WriteCmdData( 0x20, 0x0000 ); // GRAM horizontal Address
ttodorov 24:ac6e35658037 126 WriteCmdData( 0x21, 0x0000 ); // GRAM Vertical Address
ttodorov 24:ac6e35658037 127 // ----------- Adjust the Gamma Curve ----------//
ttodorov 24:ac6e35658037 128 WriteCmdData( 0x30, 0x0000 );
ttodorov 24:ac6e35658037 129 WriteCmdData( 0x31, 0x0404 );
ttodorov 24:ac6e35658037 130 WriteCmdData( 0x32, 0x0003 );
ttodorov 24:ac6e35658037 131 WriteCmdData( 0x35, 0x0405 );
ttodorov 24:ac6e35658037 132 WriteCmdData( 0x36, 0x0808 );
ttodorov 24:ac6e35658037 133 WriteCmdData( 0x37, 0x0407 );
ttodorov 24:ac6e35658037 134 WriteCmdData( 0x38, 0x0303 );
ttodorov 24:ac6e35658037 135 WriteCmdData( 0x39, 0x0707 );
ttodorov 24:ac6e35658037 136 WriteCmdData( 0x3C, 0x0504 );
ttodorov 24:ac6e35658037 137 WriteCmdData( 0x3D, 0x0808 );
ttodorov 24:ac6e35658037 138 //------------------ Set GRAM area ---------------//
ttodorov 24:ac6e35658037 139 WriteCmdData( 0x50, 0x0000 ); // Horizontal GRAM Start Address
ttodorov 24:ac6e35658037 140 WriteCmdData( 0x51, 0x00EF ); // Horizontal GRAM End Address
ttodorov 24:ac6e35658037 141 WriteCmdData( 0x52, 0x0000 ); // Vertical GRAM Start Address
ttodorov 24:ac6e35658037 142 WriteCmdData( 0x53, 0x013F ); // Vertical GRAM Start Address
ttodorov 25:6cffb758c075 143 WriteCmdData( 0x60, gateScan ); // Gate Scan Line (0xA700)
ttodorov 24:ac6e35658037 144 WriteCmdData( 0x61, 0x0000 ); // NDL,VLE, REV
ttodorov 24:ac6e35658037 145 WriteCmdData( 0x6A, 0x0000 ); // set scrolling line
ttodorov 24:ac6e35658037 146 //-------------- Partial Display Control ---------//
ttodorov 24:ac6e35658037 147 WriteCmdData( 0x80, 0x0000 );
ttodorov 24:ac6e35658037 148 WriteCmdData( 0x81, 0x0000 );
ttodorov 24:ac6e35658037 149 WriteCmdData( 0x82, 0x0000 );
ttodorov 24:ac6e35658037 150 WriteCmdData( 0x83, 0x0000 );
ttodorov 24:ac6e35658037 151 WriteCmdData( 0x84, 0x0000 );
ttodorov 24:ac6e35658037 152 WriteCmdData( 0x85, 0x0000 );
ttodorov 24:ac6e35658037 153 //-------------- Panel Control -------------------//
ttodorov 24:ac6e35658037 154 WriteCmdData( 0x90, 0x0010 );
ttodorov 24:ac6e35658037 155 WriteCmdData( 0x92, 0x0000 );
ttodorov 24:ac6e35658037 156 WriteCmdData( 0x07, 0x0133 ); // 262K color and display ON
ttodorov 24:ac6e35658037 157
ttodorov 23:eca4414196ca 158 Deactivate();
ttodorov 23:eca4414196ca 159 }
ttodorov 23:eca4414196ca 160
ttodorov 23:eca4414196ca 161 void ILI9328_LCD::Sleep( void )
ttodorov 23:eca4414196ca 162 {
ttodorov 25:6cffb758c075 163 WriteCmdData( 0x10, 0x0001 );//0x1692 ); // enter sleep mode
ttodorov 23:eca4414196ca 164 LCD::Sleep();
ttodorov 23:eca4414196ca 165 }
ttodorov 23:eca4414196ca 166
ttodorov 23:eca4414196ca 167 void ILI9328_LCD::WakeUp( void )
ttodorov 23:eca4414196ca 168 {
ttodorov 25:6cffb758c075 169 WriteCmdData( 0x10, 0x0000 );//0x1690 ); // exit sleep mode
ttodorov 23:eca4414196ca 170 LCD::WakeUp();
ttodorov 23:eca4414196ca 171 }
ttodorov 23:eca4414196ca 172
ttodorov 23:eca4414196ca 173 void ILI9328_LCD::WriteCmd( unsigned short cmd )
ttodorov 23:eca4414196ca 174 {
ttodorov 23:eca4414196ca 175 _lcd_pin_rs = LOW;
ttodorov 23:eca4414196ca 176 _lcd_port->write( cmd );
ttodorov 23:eca4414196ca 177 pulseLow( _lcd_pin_wr );
ttodorov 23:eca4414196ca 178 }
ttodorov 23:eca4414196ca 179
ttodorov 23:eca4414196ca 180 void ILI9328_LCD::WriteData( unsigned short data )
ttodorov 23:eca4414196ca 181 {
ttodorov 23:eca4414196ca 182 _lcd_pin_rs = HIGH;
ttodorov 23:eca4414196ca 183 _lcd_port->write( data );
ttodorov 23:eca4414196ca 184 pulseLow( _lcd_pin_wr );
ttodorov 23:eca4414196ca 185 }
ttodorov 23:eca4414196ca 186
ttodorov 23:eca4414196ca 187 void ILI9328_LCD::SetXY( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2 )
ttodorov 23:eca4414196ca 188 {
ttodorov 25:6cffb758c075 189 switch ( _orientation )
ttodorov 25:6cffb758c075 190 {
ttodorov 25:6cffb758c075 191 case LANDSCAPE:
ttodorov 25:6cffb758c075 192 case LANDSCAPE_REV:
ttodorov 25:6cffb758c075 193 WriteCmdData( 0x20, y1 );
ttodorov 25:6cffb758c075 194 WriteCmdData( 0x21, x1 );
ttodorov 25:6cffb758c075 195 WriteCmdData( 0x50, y1 );
ttodorov 25:6cffb758c075 196 WriteCmdData( 0x52, x1 );
ttodorov 25:6cffb758c075 197 WriteCmdData( 0x51, y2 );
ttodorov 25:6cffb758c075 198 WriteCmdData( 0x53, x2 );
ttodorov 25:6cffb758c075 199 break;
ttodorov 25:6cffb758c075 200
ttodorov 25:6cffb758c075 201 case PORTRAIT_REV:
ttodorov 25:6cffb758c075 202 case PORTRAIT:
ttodorov 25:6cffb758c075 203 default:
ttodorov 25:6cffb758c075 204 WriteCmdData( 0x20, x1 );
ttodorov 25:6cffb758c075 205 WriteCmdData( 0x21, y1 );
ttodorov 25:6cffb758c075 206 WriteCmdData( 0x50, x1 );
ttodorov 25:6cffb758c075 207 WriteCmdData( 0x52, y1 );
ttodorov 25:6cffb758c075 208 WriteCmdData( 0x51, x2 );
ttodorov 25:6cffb758c075 209 WriteCmdData( 0x53, y2 );
ttodorov 25:6cffb758c075 210 break;
ttodorov 25:6cffb758c075 211 }
ttodorov 23:eca4414196ca 212 WriteCmd( 0x22 );
ttodorov 23:eca4414196ca 213 }
ttodorov 23:eca4414196ca 214
ttodorov 23:eca4414196ca 215 void ILI9328_LCD::SetPixelColor( unsigned int color, colordepth_t mode )
ttodorov 23:eca4414196ca 216 {
ttodorov 23:eca4414196ca 217 unsigned char r, g, b;
ttodorov 23:eca4414196ca 218 unsigned short clr;
ttodorov 26:28f64fbcf7df 219 r = g = b = 0;
ttodorov 23:eca4414196ca 220 if ( _colorDepth == RGB16 )
ttodorov 23:eca4414196ca 221 {
ttodorov 23:eca4414196ca 222 switch ( mode )
ttodorov 23:eca4414196ca 223 {
ttodorov 23:eca4414196ca 224 case RGB16:
ttodorov 23:eca4414196ca 225 WriteData( color & 0xFFFF );
ttodorov 23:eca4414196ca 226 break;
ttodorov 23:eca4414196ca 227 case RGB18:
ttodorov 23:eca4414196ca 228 r = ( color >> 10 ) & 0xF8;
ttodorov 23:eca4414196ca 229 g = ( color >> 4 ) & 0xFC;
ttodorov 23:eca4414196ca 230 b = ( color >> 1 ) & 0x1F;
ttodorov 23:eca4414196ca 231 clr = ( ( r | ( g >> 5 ) ) << 8 ) | ( ( g << 3 ) | b );
ttodorov 23:eca4414196ca 232 WriteData( clr );
ttodorov 23:eca4414196ca 233 break;
ttodorov 23:eca4414196ca 234 case RGB24:
ttodorov 23:eca4414196ca 235 r = ( color >> 16 ) & 0xF8;
ttodorov 23:eca4414196ca 236 g = ( color >> 8 ) & 0xFC;
ttodorov 23:eca4414196ca 237 b = color & 0xF8;
ttodorov 23:eca4414196ca 238 clr = ( ( r | ( g >> 5 ) ) << 8 ) | ( ( g << 3 ) | ( b >> 3 ) );
ttodorov 23:eca4414196ca 239 WriteData( clr );
ttodorov 23:eca4414196ca 240 break;
ttodorov 23:eca4414196ca 241 }
ttodorov 23:eca4414196ca 242 }
ttodorov 23:eca4414196ca 243 else if ( _colorDepth == RGB18 )
ttodorov 23:eca4414196ca 244 {
ttodorov 23:eca4414196ca 245 switch ( mode )
ttodorov 23:eca4414196ca 246 {
ttodorov 23:eca4414196ca 247 case RGB16:
ttodorov 23:eca4414196ca 248 r = ( ( color >> 8 ) & 0xF8 ) | ( ( color & 0x8000 ) >> 13 );
ttodorov 23:eca4414196ca 249 g = ( color >> 3 ) & 0xFC;
ttodorov 23:eca4414196ca 250 b = ( ( color << 3 ) & 0xFC ) | ( ( color >> 3 ) & 0x01 );
ttodorov 23:eca4414196ca 251 break;
ttodorov 23:eca4414196ca 252 case RGB18:
ttodorov 23:eca4414196ca 253 b = ( color << 2 ) & 0xFC;
ttodorov 23:eca4414196ca 254 g = ( color >> 4 ) & 0xFC;
ttodorov 23:eca4414196ca 255 r = ( color >> 10 ) & 0xFC;
ttodorov 23:eca4414196ca 256 break;
ttodorov 23:eca4414196ca 257 case RGB24:
ttodorov 23:eca4414196ca 258 r = ( color >> 16 ) & 0xFC;
ttodorov 23:eca4414196ca 259 g = ( color >> 8 ) & 0xFC;
ttodorov 23:eca4414196ca 260 b = color & 0xFC;
ttodorov 23:eca4414196ca 261 break;
ttodorov 23:eca4414196ca 262 }
ttodorov 26:28f64fbcf7df 263 clr = ( r << 8 ) | ( g << 2 ) | ( b >> 4 );
ttodorov 26:28f64fbcf7df 264 WriteData( clr );
ttodorov 26:28f64fbcf7df 265 WriteData( b << 4 );
ttodorov 23:eca4414196ca 266 }
ttodorov 23:eca4414196ca 267 }