madhu sudhana / Mbed OS newTFTLCD_

1.44 tft lcd display

Dependencies:   TFT_fonts mbed-os

Fork of newTFTLCD by madhu sudhana

hx8340bs.cpp@12:d0978272a340, 2012-12-11 (annotated)

Committer:
ttodorov
Date:
Tue Dec 11 18:11:14 2012 +0000
Revision:
12:d0978272a340
Parent:
10:69571adcfad5
Child:
15:af3cd35886fb
- integrated RGB16 and RGB18 color depth configuration/selection; - integrated HW rotation for the HX8340-B driver; - changed the bitmap drawing API; - TODO: no drawing of rotated or scaled bitmaps yet

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 4:3ac4239f6c9c 25 HX8340S_LCD::HX8340S_LCD( PinName CS, PinName RESET, PinName SCL, PinName SDI, PinName BL )
ttodorov 4:3ac4239f6c9c 26 : LCD( 176, 220, CS, NC, RESET ), _lcd_pin_scl( SCL ), _lcd_pin_sdi( SDI )
ttodorov 4:3ac4239f6c9c 27 {
ttodorov 4:3ac4239f6c9c 28 if ( BL != NC ) _lcd_pin_bl = new DigitalOut( BL );
ttodorov 4:3ac4239f6c9c 29 else _lcd_pin_bl = 0;
ttodorov 4:3ac4239f6c9c 30 }
ttodorov 9:58b328831d0a 31
ttodorov 12:d0978272a340 32 void HX8340S_LCD::Initialize( orientation_t orientation, colordepth_t colors )
ttodorov 4:3ac4239f6c9c 33 {
ttodorov 4:3ac4239f6c9c 34 _orientation = orientation;
ttodorov 12:d0978272a340 35 _colorDepth = colors;
ttodorov 4:3ac4239f6c9c 36
ttodorov 4:3ac4239f6c9c 37 wait_ms( 100 );
ttodorov 4:3ac4239f6c9c 38 _lcd_pin_reset = HIGH;
ttodorov 4:3ac4239f6c9c 39 wait_ms( 5 );
ttodorov 4:3ac4239f6c9c 40 _lcd_pin_reset = LOW;
ttodorov 4:3ac4239f6c9c 41 wait_ms( 15 );
ttodorov 4:3ac4239f6c9c 42 _lcd_pin_reset = HIGH;
ttodorov 4:3ac4239f6c9c 43 _lcd_pin_cs = HIGH;
ttodorov 4:3ac4239f6c9c 44 _lcd_pin_scl = HIGH;
ttodorov 4:3ac4239f6c9c 45 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 46 if ( _lcd_pin_bl != 0 )
ttodorov 4:3ac4239f6c9c 47 *_lcd_pin_bl = HIGH;
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 4:3ac4239f6c9c 139 if ( _lcd_pin_bl != 0 )
ttodorov 4:3ac4239f6c9c 140 *_lcd_pin_bl = LOW;
ttodorov 4:3ac4239f6c9c 141 Deactivate();
ttodorov 4:3ac4239f6c9c 142 }
ttodorov 4:3ac4239f6c9c 143
ttodorov 4:3ac4239f6c9c 144 void HX8340S_LCD::WakeUp( void )
ttodorov 4:3ac4239f6c9c 145 {
ttodorov 4:3ac4239f6c9c 146 Activate();
ttodorov 4:3ac4239f6c9c 147 WriteCmd( 0x29 );
ttodorov 4:3ac4239f6c9c 148 wait_ms( 10 );
ttodorov 4:3ac4239f6c9c 149 WriteCmd( 0x11 );
ttodorov 4:3ac4239f6c9c 150 wait_ms( 125 );
ttodorov 4:3ac4239f6c9c 151 if ( _lcd_pin_bl != 0 )
ttodorov 4:3ac4239f6c9c 152 *_lcd_pin_bl = HIGH;
ttodorov 4:3ac4239f6c9c 153 Deactivate();
ttodorov 4:3ac4239f6c9c 154 }
ttodorov 4:3ac4239f6c9c 155
ttodorov 4:3ac4239f6c9c 156 void HX8340S_LCD::WriteCmd( unsigned short cmd )
ttodorov 4:3ac4239f6c9c 157 {
ttodorov 4:3ac4239f6c9c 158 _lcd_pin_sdi = LOW;
ttodorov 4:3ac4239f6c9c 159 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 160 serializeByte( cmd & 0xFF );
ttodorov 4:3ac4239f6c9c 161 }
ttodorov 4:3ac4239f6c9c 162
ttodorov 4:3ac4239f6c9c 163 void HX8340S_LCD::WriteData( unsigned short data )
ttodorov 4:3ac4239f6c9c 164 {
ttodorov 4:3ac4239f6c9c 165 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 166 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 167 serializeByte( ( data >> 8 ) & 0xFF );
ttodorov 4:3ac4239f6c9c 168 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 169 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 170 serializeByte( data & 0xFF );
ttodorov 4:3ac4239f6c9c 171 }
ttodorov 4:3ac4239f6c9c 172
ttodorov 4:3ac4239f6c9c 173 void HX8340S_LCD::WriteByteData( unsigned char data )
ttodorov 4:3ac4239f6c9c 174 {
ttodorov 4:3ac4239f6c9c 175 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 176 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 177 serializeByte( data );
ttodorov 4:3ac4239f6c9c 178 }
ttodorov 4:3ac4239f6c9c 179
ttodorov 4:3ac4239f6c9c 180 void HX8340S_LCD::SetXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 )
ttodorov 4:3ac4239f6c9c 181 {
ttodorov 12:d0978272a340 182 WriteCmdData( 0x2A, x1 ); // CASET
ttodorov 4:3ac4239f6c9c 183 WriteData( x2 );
ttodorov 12:d0978272a340 184 WriteCmdData( 0x2B, y1 ); // PASET
ttodorov 4:3ac4239f6c9c 185 WriteData( y2 );
ttodorov 12:d0978272a340 186 WriteCmd( 0x2C ); // RAMWR
ttodorov 4:3ac4239f6c9c 187 }
ttodorov 4:3ac4239f6c9c 188
ttodorov 12:d0978272a340 189 void HX8340S_LCD::SetPixelColor( unsigned int color )
ttodorov 10:69571adcfad5 190 {
ttodorov 12:d0978272a340 191 unsigned char r, g, b;
ttodorov 12:d0978272a340 192 r = ( color >> 16 ) & 0xFF;
ttodorov 12:d0978272a340 193 g = ( color >> 8 ) & 0xFF;
ttodorov 12:d0978272a340 194 b = color & 0xFF;
ttodorov 12:d0978272a340 195 if ( _colorDepth == RGB16 )
ttodorov 12:d0978272a340 196 {
ttodorov 12:d0978272a340 197 unsigned short clr = ( ( ( ( r ) & 0xF8 ) | ( ( g ) >> 5 ) ) << 8 ) | ( ( ( ( g ) & 0x1C ) << 3 ) | ( ( b ) >> 3 ) );
ttodorov 12:d0978272a340 198 WriteData( clr );
ttodorov 12:d0978272a340 199 }
ttodorov 12:d0978272a340 200 else
ttodorov 12:d0978272a340 201 {
ttodorov 12:d0978272a340 202 WriteByteData( r & 0xFC );
ttodorov 12:d0978272a340 203 WriteByteData( g & 0xFC );
ttodorov 12:d0978272a340 204 WriteByteData( b & 0xFC );
ttodorov 12:d0978272a340 205 }
ttodorov 10:69571adcfad5 206 }
ttodorov 10:69571adcfad5 207
ttodorov 4:3ac4239f6c9c 208 void HX8340S_LCD::serializeByte( unsigned char data )
ttodorov 4:3ac4239f6c9c 209 {
ttodorov 4:3ac4239f6c9c 210 for ( int i = 0; i < 8; i++ )
ttodorov 4:3ac4239f6c9c 211 {
ttodorov 4:3ac4239f6c9c 212 if ( data & 0x80 ) _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 213 else _lcd_pin_sdi = LOW;
ttodorov 4:3ac4239f6c9c 214 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 215 data = data << 1;
ttodorov 4:3ac4239f6c9c 216 }
ttodorov 4:3ac4239f6c9c 217 }