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

hx8340bs.cpp@28:89a1399409ff, 2016-02-16 (annotated)

Committer:
DooMMasteR
Date:
Tue Feb 16 19:09:15 2016 +0000
Revision:
28:89a1399409ff
Parent:
22:4c169297f374 
make size of the ST7735 variable, while not breaking old functionality;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ttodorov 4:3ac4239f6c9c 1 /*
ttodorov 4:3ac4239f6c9c 2 * Copyright (C)2010-2012 Henning Karlsen. All right reserved.
ttodorov 4:3ac4239f6c9c 3 * Copyright (C)2012 Todor Todorov.
ttodorov 4:3ac4239f6c9c 4 *
ttodorov 4:3ac4239f6c9c 5 * This library is free software; you can redistribute it and/or
ttodorov 4:3ac4239f6c9c 6 * modify it under the terms of the GNU Lesser General Public
ttodorov 4:3ac4239f6c9c 7 * License as published by the Free Software Foundation; either
ttodorov 4:3ac4239f6c9c 8 * version 2.1 of the License, or (at your option) any later version.
ttodorov 4:3ac4239f6c9c 9 *
ttodorov 4:3ac4239f6c9c 10 * This library is distributed in the hope that it will be useful,
ttodorov 4:3ac4239f6c9c 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
ttodorov 4:3ac4239f6c9c 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
ttodorov 4:3ac4239f6c9c 13 * Lesser General Public License for more details.
ttodorov 4:3ac4239f6c9c 14 *
ttodorov 4:3ac4239f6c9c 15 * You should have received a copy of the GNU Lesser General Public
ttodorov 4:3ac4239f6c9c 16 * License along with this library; if not, write to:
ttodorov 4:3ac4239f6c9c 17 *
ttodorov 4:3ac4239f6c9c 18 * Free Software Foundation, Inc.
ttodorov 4:3ac4239f6c9c 19 * 51 Franklin St, 5th Floor, Boston, MA 02110-1301, USA
ttodorov 4:3ac4239f6c9c 20 *
ttodorov 4:3ac4239f6c9c 21 *********************************************************************/
ttodorov 4:3ac4239f6c9c 22 #include "hx8340bs.h"
ttodorov 4:3ac4239f6c9c 23 #include "helpers.h"
ttodorov 4:3ac4239f6c9c 24
ttodorov 22:4c169297f374 25 HX8340S_LCD::HX8340S_LCD( PinName CS, PinName RESET, PinName SCL, PinName SDI, PinName BL, backlight_t blType, float defaultBackLightLevel )
ttodorov 22:4c169297f374 26 : LCD( 176, 220, CS, NC, RESET, BL, blType, defaultBackLightLevel ), _lcd_pin_scl( SCL ), _lcd_pin_sdi( SDI )
ttodorov 4:3ac4239f6c9c 27 {
ttodorov 4:3ac4239f6c9c 28 }
ttodorov 9:58b328831d0a 29
ttodorov 12:d0978272a340 30 void HX8340S_LCD::Initialize( orientation_t orientation, colordepth_t colors )
ttodorov 4:3ac4239f6c9c 31 {
ttodorov 4:3ac4239f6c9c 32 _orientation = orientation;
ttodorov 12:d0978272a340 33 _colorDepth = colors;
ttodorov 4:3ac4239f6c9c 34
ttodorov 4:3ac4239f6c9c 35 wait_ms( 100 );
ttodorov 4:3ac4239f6c9c 36 _lcd_pin_reset = HIGH;
ttodorov 4:3ac4239f6c9c 37 wait_ms( 5 );
ttodorov 4:3ac4239f6c9c 38 _lcd_pin_reset = LOW;
ttodorov 4:3ac4239f6c9c 39 wait_ms( 15 );
ttodorov 4:3ac4239f6c9c 40 _lcd_pin_reset = HIGH;
ttodorov 4:3ac4239f6c9c 41 _lcd_pin_cs = HIGH;
ttodorov 4:3ac4239f6c9c 42 _lcd_pin_scl = HIGH;
ttodorov 4:3ac4239f6c9c 43 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 44 if ( _lcd_pin_bl != 0 )
ttodorov 4:3ac4239f6c9c 45 *_lcd_pin_bl = HIGH;
ttodorov 22:4c169297f374 46 else if ( _bl_pwm != 0 )
ttodorov 22:4c169297f374 47 *_bl_pwm = _bl_pwm_default;
ttodorov 4:3ac4239f6c9c 48 wait_ms( 55 );
ttodorov 4:3ac4239f6c9c 49
ttodorov 4:3ac4239f6c9c 50 Activate();
ttodorov 12:d0978272a340 51 WriteCmd( 0xC1 ); // SETEXTCMD
ttodorov 4:3ac4239f6c9c 52 WriteByteData( 0xFF );
ttodorov 4:3ac4239f6c9c 53 WriteByteData( 0x83 );
ttodorov 4:3ac4239f6c9c 54 WriteByteData( 0x40 );
ttodorov 12:d0978272a340 55
ttodorov 12:d0978272a340 56 WriteCmd( 0x11 ); // SLPOUT
ttodorov 4:3ac4239f6c9c 57 wait_ms( 160 );
ttodorov 12:d0978272a340 58
ttodorov 4:3ac4239f6c9c 59 WriteCmd( 0xCA );
ttodorov 4:3ac4239f6c9c 60 WriteByteData( 0x70 );
ttodorov 4:3ac4239f6c9c 61 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 62 WriteByteData( 0xD9 );
ttodorov 12:d0978272a340 63
ttodorov 12:d0978272a340 64 WriteCmd( 0xB0 ); // SETOSC
ttodorov 4:3ac4239f6c9c 65 WriteByteData( 0x01 );
ttodorov 4:3ac4239f6c9c 66 WriteByteData( 0x11 );
ttodorov 4:3ac4239f6c9c 67
ttodorov 4:3ac4239f6c9c 68 WriteCmd( 0xC9 );
ttodorov 4:3ac4239f6c9c 69 WriteByteData( 0x90 );
ttodorov 4:3ac4239f6c9c 70 WriteByteData( 0x49 );
ttodorov 4:3ac4239f6c9c 71 WriteByteData( 0x10 );
ttodorov 4:3ac4239f6c9c 72 WriteByteData( 0x28 );
ttodorov 4:3ac4239f6c9c 73 WriteByteData( 0x28 );
ttodorov 4:3ac4239f6c9c 74 WriteByteData( 0x10 );
ttodorov 4:3ac4239f6c9c 75 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 76 WriteByteData( 0x06 );
ttodorov 4:3ac4239f6c9c 77 wait_ms( 20 );
ttodorov 12:d0978272a340 78
ttodorov 12:d0978272a340 79 WriteCmd( 0xC2 ); // SETGAMMAP
ttodorov 4:3ac4239f6c9c 80 WriteByteData( 0x60 );
ttodorov 4:3ac4239f6c9c 81 WriteByteData( 0x71 );
ttodorov 4:3ac4239f6c9c 82 WriteByteData( 0x01 );
ttodorov 4:3ac4239f6c9c 83 WriteByteData( 0x0E );
ttodorov 4:3ac4239f6c9c 84 WriteByteData( 0x05 );
ttodorov 4:3ac4239f6c9c 85 WriteByteData( 0x02 );
ttodorov 4:3ac4239f6c9c 86 WriteByteData( 0x09 );
ttodorov 4:3ac4239f6c9c 87 WriteByteData( 0x31 );
ttodorov 4:3ac4239f6c9c 88 WriteByteData( 0x0A );
ttodorov 4:3ac4239f6c9c 89
ttodorov 12:d0978272a340 90 WriteCmd( 0xc3 ); // SETGAMMAN
ttodorov 4:3ac4239f6c9c 91 WriteByteData( 0x67 );
ttodorov 4:3ac4239f6c9c 92 WriteByteData( 0x30 );
ttodorov 4:3ac4239f6c9c 93 WriteByteData( 0x61 );
ttodorov 4:3ac4239f6c9c 94 WriteByteData( 0x17 );
ttodorov 4:3ac4239f6c9c 95 WriteByteData( 0x48 );
ttodorov 4:3ac4239f6c9c 96 WriteByteData( 0x07 );
ttodorov 4:3ac4239f6c9c 97 WriteByteData( 0x05 );
ttodorov 4:3ac4239f6c9c 98 WriteByteData( 0x33 );
ttodorov 4:3ac4239f6c9c 99 wait_ms( 10 );
ttodorov 12:d0978272a340 100
ttodorov 12:d0978272a340 101 WriteCmd( 0xB5 ); // SETPWCTR5
ttodorov 4:3ac4239f6c9c 102 WriteByteData( 0x35 );
ttodorov 4:3ac4239f6c9c 103 WriteByteData( 0x20 );
ttodorov 4:3ac4239f6c9c 104 WriteByteData( 0x45 );
ttodorov 4:3ac4239f6c9c 105
ttodorov 12:d0978272a340 106 WriteCmd( 0xB4 ); // SETPWCTR4
ttodorov 4:3ac4239f6c9c 107 WriteByteData( 0x33 );
ttodorov 4:3ac4239f6c9c 108 WriteByteData( 0x25 );
ttodorov 4:3ac4239f6c9c 109 WriteByteData( 0x4c );
ttodorov 4:3ac4239f6c9c 110 wait_ms( 10 );
ttodorov 12:d0978272a340 111
ttodorov 12:d0978272a340 112 WriteCmd( 0x3A ); // COLMOD == color depth: 0x05 => 16bit, 0x06 => 18bit
ttodorov 12:d0978272a340 113 WriteByteData( _colorDepth == RGB16 ? 0x05 : 0x06 );
ttodorov 12:d0978272a340 114
ttodorov 12:d0978272a340 115 WriteCmd( 0x36 ); // MADCTL
ttodorov 12:d0978272a340 116 switch ( _orientation )
ttodorov 12:d0978272a340 117 {
ttodorov 12:d0978272a340 118 case LANDSCAPE: WriteByteData( 0xB8 ); break;
ttodorov 12:d0978272a340 119 case PORTRAIT_REV: WriteByteData( 0xDC ); break;
ttodorov 12:d0978272a340 120 case LANDSCAPE_REV: WriteByteData( 0x6C ); break;
ttodorov 12:d0978272a340 121 case PORTRAIT:
ttodorov 12:d0978272a340 122 default: WriteByteData( 0x08 ); break;
ttodorov 12:d0978272a340 123 }
ttodorov 12:d0978272a340 124
ttodorov 12:d0978272a340 125 WriteCmd( 0x29 ); // DISPON
ttodorov 4:3ac4239f6c9c 126 wait_ms( 10 );
ttodorov 12:d0978272a340 127
ttodorov 12:d0978272a340 128 ClearXY();
ttodorov 4:3ac4239f6c9c 129 Deactivate();
ttodorov 4:3ac4239f6c9c 130 }
ttodorov 4:3ac4239f6c9c 131
ttodorov 4:3ac4239f6c9c 132 void HX8340S_LCD::Sleep( void )
ttodorov 4:3ac4239f6c9c 133 {
ttodorov 4:3ac4239f6c9c 134 Activate();
ttodorov 4:3ac4239f6c9c 135 WriteCmd( 0x28 );
ttodorov 4:3ac4239f6c9c 136 wait_ms( 10 );
ttodorov 4:3ac4239f6c9c 137 WriteCmd( 0x10 );
ttodorov 4:3ac4239f6c9c 138 wait_ms( 125 );
ttodorov 22:4c169297f374 139 LCD::Sleep();
ttodorov 4:3ac4239f6c9c 140 Deactivate();
ttodorov 4:3ac4239f6c9c 141 }
ttodorov 4:3ac4239f6c9c 142
ttodorov 4:3ac4239f6c9c 143 void HX8340S_LCD::WakeUp( void )
ttodorov 4:3ac4239f6c9c 144 {
ttodorov 4:3ac4239f6c9c 145 Activate();
ttodorov 4:3ac4239f6c9c 146 WriteCmd( 0x29 );
ttodorov 4:3ac4239f6c9c 147 wait_ms( 10 );
ttodorov 4:3ac4239f6c9c 148 WriteCmd( 0x11 );
ttodorov 4:3ac4239f6c9c 149 wait_ms( 125 );
ttodorov 22:4c169297f374 150 LCD::WakeUp();
ttodorov 4:3ac4239f6c9c 151 Deactivate();
ttodorov 4:3ac4239f6c9c 152 }
ttodorov 4:3ac4239f6c9c 153
ttodorov 4:3ac4239f6c9c 154 void HX8340S_LCD::WriteCmd( unsigned short cmd )
ttodorov 4:3ac4239f6c9c 155 {
ttodorov 4:3ac4239f6c9c 156 _lcd_pin_sdi = LOW;
ttodorov 4:3ac4239f6c9c 157 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 158 serializeByte( cmd & 0xFF );
ttodorov 4:3ac4239f6c9c 159 }
ttodorov 4:3ac4239f6c9c 160
ttodorov 4:3ac4239f6c9c 161 void HX8340S_LCD::WriteData( unsigned short data )
ttodorov 4:3ac4239f6c9c 162 {
ttodorov 4:3ac4239f6c9c 163 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 164 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 165 serializeByte( ( data >> 8 ) & 0xFF );
ttodorov 4:3ac4239f6c9c 166 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 167 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 168 serializeByte( data & 0xFF );
ttodorov 4:3ac4239f6c9c 169 }
ttodorov 4:3ac4239f6c9c 170
ttodorov 4:3ac4239f6c9c 171 void HX8340S_LCD::WriteByteData( unsigned char data )
ttodorov 4:3ac4239f6c9c 172 {
ttodorov 4:3ac4239f6c9c 173 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 174 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 175 serializeByte( data );
ttodorov 4:3ac4239f6c9c 176 }
ttodorov 4:3ac4239f6c9c 177
ttodorov 20:4bdca8d8dadc 178 void HX8340S_LCD::SetXY( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2 )
ttodorov 4:3ac4239f6c9c 179 {
ttodorov 12:d0978272a340 180 WriteCmdData( 0x2A, x1 ); // CASET
ttodorov 4:3ac4239f6c9c 181 WriteData( x2 );
ttodorov 12:d0978272a340 182 WriteCmdData( 0x2B, y1 ); // PASET
ttodorov 4:3ac4239f6c9c 183 WriteData( y2 );
ttodorov 12:d0978272a340 184 WriteCmd( 0x2C ); // RAMWR
ttodorov 4:3ac4239f6c9c 185 }
ttodorov 4:3ac4239f6c9c 186
ttodorov 20:4bdca8d8dadc 187 void HX8340S_LCD::SetPixelColor( unsigned int color, colordepth_t mode )
ttodorov 10:69571adcfad5 188 {
ttodorov 20:4bdca8d8dadc 189 unsigned char r = 0, g = 0, b = 0;
ttodorov 20:4bdca8d8dadc 190 unsigned short clr;
ttodorov 12:d0978272a340 191 if ( _colorDepth == RGB16 )
ttodorov 12:d0978272a340 192 {
ttodorov 20:4bdca8d8dadc 193 switch ( mode )
ttodorov 20:4bdca8d8dadc 194 {
ttodorov 20:4bdca8d8dadc 195 case RGB16:
ttodorov 20:4bdca8d8dadc 196 WriteData( color & 0xFFFF );
ttodorov 20:4bdca8d8dadc 197 break;
ttodorov 20:4bdca8d8dadc 198 case RGB18:
ttodorov 20:4bdca8d8dadc 199 r = ( color >> 10 ) & 0xF8;
ttodorov 20:4bdca8d8dadc 200 g = ( color >> 4 ) & 0xFC;
ttodorov 20:4bdca8d8dadc 201 b = ( color >> 1 ) & 0x1F;
ttodorov 20:4bdca8d8dadc 202 clr = ( ( r | ( g >> 5 ) ) << 8 ) | ( ( g << 3 ) | b );
ttodorov 20:4bdca8d8dadc 203 WriteData( clr );
ttodorov 20:4bdca8d8dadc 204 break;
ttodorov 20:4bdca8d8dadc 205 case RGB24:
ttodorov 20:4bdca8d8dadc 206 r = ( color >> 16 ) & 0xF8;
ttodorov 20:4bdca8d8dadc 207 g = ( color >> 8 ) & 0xFC;
ttodorov 20:4bdca8d8dadc 208 b = color & 0xF8;
ttodorov 20:4bdca8d8dadc 209 clr = ( ( r | ( g >> 5 ) ) << 8 ) | ( ( g << 3 ) | ( b >> 3 ) );
ttodorov 20:4bdca8d8dadc 210 WriteData( clr );
ttodorov 20:4bdca8d8dadc 211 break;
ttodorov 20:4bdca8d8dadc 212 }
ttodorov 12:d0978272a340 213 }
ttodorov 15:af3cd35886fb 214 else if ( _colorDepth == RGB18 )
ttodorov 12:d0978272a340 215 {
ttodorov 20:4bdca8d8dadc 216 switch ( mode )
ttodorov 20:4bdca8d8dadc 217 {
ttodorov 20:4bdca8d8dadc 218 case RGB16:
ttodorov 20:4bdca8d8dadc 219 r = ( ( color >> 8 ) & 0xF8 ) | ( ( color & 0x8000 ) >> 13 );
ttodorov 20:4bdca8d8dadc 220 g = ( color >> 3 ) & 0xFC;
ttodorov 20:4bdca8d8dadc 221 b = ( ( color << 3 ) & 0xFC ) | ( ( color >> 3 ) & 0x01 );
ttodorov 20:4bdca8d8dadc 222 break;
ttodorov 20:4bdca8d8dadc 223 case RGB18:
ttodorov 20:4bdca8d8dadc 224 b = ( color << 2 ) & 0xFC;
ttodorov 20:4bdca8d8dadc 225 g = ( color >> 4 ) & 0xFC;
ttodorov 20:4bdca8d8dadc 226 r = ( color >> 10 ) & 0xFC;
ttodorov 20:4bdca8d8dadc 227 break;
ttodorov 20:4bdca8d8dadc 228 case RGB24:
ttodorov 20:4bdca8d8dadc 229 r = ( color >> 16 ) & 0xFC;
ttodorov 20:4bdca8d8dadc 230 g = ( color >> 8 ) & 0xFC;
ttodorov 20:4bdca8d8dadc 231 b = color & 0xFC;
ttodorov 20:4bdca8d8dadc 232 break;
ttodorov 20:4bdca8d8dadc 233 }
ttodorov 20:4bdca8d8dadc 234 WriteByteData( r );
ttodorov 20:4bdca8d8dadc 235 WriteByteData( g );
ttodorov 20:4bdca8d8dadc 236 WriteByteData( b );
ttodorov 12:d0978272a340 237 }
ttodorov 10:69571adcfad5 238 }
ttodorov 10:69571adcfad5 239
ttodorov 4:3ac4239f6c9c 240 void HX8340S_LCD::serializeByte( unsigned char data )
ttodorov 4:3ac4239f6c9c 241 {
ttodorov 4:3ac4239f6c9c 242 for ( int i = 0; i < 8; i++ )
ttodorov 4:3ac4239f6c9c 243 {
ttodorov 4:3ac4239f6c9c 244 if ( data & 0x80 ) _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 245 else _lcd_pin_sdi = LOW;
ttodorov 4:3ac4239f6c9c 246 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 247 data = data << 1;
ttodorov 4:3ac4239f6c9c 248 }
ttodorov 4:3ac4239f6c9c 249 }