madhu sudhana / Mbed OS newTFTLCD_

1.44 tft lcd display

Dependencies:   TFT_fonts mbed-os

Fork of newTFTLCD by madhu sudhana

hx8340bs.cpp@10:69571adcfad5, 2012-12-11 (annotated)

Committer:
ttodorov
Date:
Tue Dec 11 03:18:43 2012 +0000
Revision:
10:69571adcfad5
Parent:
9:58b328831d0a
Child:
12:d0978272a340
- preliminary support for using 18-bit colors

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 4:3ac4239f6c9c 32 void HX8340S_LCD::Initialize( orientation_t orientation )
ttodorov 4:3ac4239f6c9c 33 {
ttodorov 4:3ac4239f6c9c 34 _orientation = orientation;
ttodorov 4:3ac4239f6c9c 35
ttodorov 4:3ac4239f6c9c 36 wait_ms( 100 );
ttodorov 4:3ac4239f6c9c 37 _lcd_pin_reset = HIGH;
ttodorov 4:3ac4239f6c9c 38 wait_ms( 5 );
ttodorov 4:3ac4239f6c9c 39 _lcd_pin_reset = LOW;
ttodorov 4:3ac4239f6c9c 40 wait_ms( 15 );
ttodorov 4:3ac4239f6c9c 41 _lcd_pin_reset = HIGH;
ttodorov 4:3ac4239f6c9c 42 _lcd_pin_cs = HIGH;
ttodorov 4:3ac4239f6c9c 43 _lcd_pin_scl = HIGH;
ttodorov 4:3ac4239f6c9c 44 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 45 if ( _lcd_pin_bl != 0 )
ttodorov 4:3ac4239f6c9c 46 *_lcd_pin_bl = HIGH;
ttodorov 4:3ac4239f6c9c 47 wait_ms( 55 );
ttodorov 4:3ac4239f6c9c 48
ttodorov 4:3ac4239f6c9c 49 Activate();
ttodorov 4:3ac4239f6c9c 50 WriteCmd( 0xC1 );
ttodorov 4:3ac4239f6c9c 51 WriteByteData( 0xFF );
ttodorov 4:3ac4239f6c9c 52 WriteByteData( 0x83 );
ttodorov 4:3ac4239f6c9c 53 WriteByteData( 0x40 );
ttodorov 4:3ac4239f6c9c 54 WriteCmd( 0x11 );
ttodorov 4:3ac4239f6c9c 55 wait_ms( 160 );
ttodorov 4:3ac4239f6c9c 56 WriteCmd( 0xCA );
ttodorov 4:3ac4239f6c9c 57 WriteByteData( 0x70 );
ttodorov 4:3ac4239f6c9c 58 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 59 WriteByteData( 0xD9 );
ttodorov 4:3ac4239f6c9c 60 WriteCmd( 0xB0 );
ttodorov 4:3ac4239f6c9c 61 WriteByteData( 0x01 );
ttodorov 4:3ac4239f6c9c 62 WriteByteData( 0x11 );
ttodorov 4:3ac4239f6c9c 63
ttodorov 4:3ac4239f6c9c 64 WriteCmd( 0xC9 );
ttodorov 4:3ac4239f6c9c 65 WriteByteData( 0x90 );
ttodorov 4:3ac4239f6c9c 66 WriteByteData( 0x49 );
ttodorov 4:3ac4239f6c9c 67 WriteByteData( 0x10 );
ttodorov 4:3ac4239f6c9c 68 WriteByteData( 0x28 );
ttodorov 4:3ac4239f6c9c 69 WriteByteData( 0x28 );
ttodorov 4:3ac4239f6c9c 70 WriteByteData( 0x10 );
ttodorov 4:3ac4239f6c9c 71 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 72 WriteByteData( 0x06 );
ttodorov 4:3ac4239f6c9c 73 wait_ms( 20 );
ttodorov 4:3ac4239f6c9c 74 WriteCmd( 0xC2 );
ttodorov 4:3ac4239f6c9c 75 WriteByteData( 0x60 );
ttodorov 4:3ac4239f6c9c 76 WriteByteData( 0x71 );
ttodorov 4:3ac4239f6c9c 77 WriteByteData( 0x01 );
ttodorov 4:3ac4239f6c9c 78 WriteByteData( 0x0E );
ttodorov 4:3ac4239f6c9c 79 WriteByteData( 0x05 );
ttodorov 4:3ac4239f6c9c 80 WriteByteData( 0x02 );
ttodorov 4:3ac4239f6c9c 81 WriteByteData( 0x09 );
ttodorov 4:3ac4239f6c9c 82 WriteByteData( 0x31 );
ttodorov 4:3ac4239f6c9c 83 WriteByteData( 0x0A );
ttodorov 4:3ac4239f6c9c 84
ttodorov 4:3ac4239f6c9c 85 WriteCmd( 0xc3 );
ttodorov 4:3ac4239f6c9c 86 WriteByteData( 0x67 );
ttodorov 4:3ac4239f6c9c 87 WriteByteData( 0x30 );
ttodorov 4:3ac4239f6c9c 88 WriteByteData( 0x61 );
ttodorov 4:3ac4239f6c9c 89 WriteByteData( 0x17 );
ttodorov 4:3ac4239f6c9c 90 WriteByteData( 0x48 );
ttodorov 4:3ac4239f6c9c 91 WriteByteData( 0x07 );
ttodorov 4:3ac4239f6c9c 92 WriteByteData( 0x05 );
ttodorov 4:3ac4239f6c9c 93 WriteByteData( 0x33 );
ttodorov 4:3ac4239f6c9c 94 wait_ms( 10 );
ttodorov 4:3ac4239f6c9c 95 WriteCmd( 0xB5 );
ttodorov 4:3ac4239f6c9c 96 WriteByteData( 0x35 );
ttodorov 4:3ac4239f6c9c 97 WriteByteData( 0x20 );
ttodorov 4:3ac4239f6c9c 98 WriteByteData( 0x45 );
ttodorov 4:3ac4239f6c9c 99
ttodorov 4:3ac4239f6c9c 100 WriteCmd( 0xB4 );
ttodorov 4:3ac4239f6c9c 101 WriteByteData( 0x33 );
ttodorov 4:3ac4239f6c9c 102 WriteByteData( 0x25 );
ttodorov 4:3ac4239f6c9c 103 WriteByteData( 0x4c );
ttodorov 4:3ac4239f6c9c 104 wait_ms( 10 );
ttodorov 4:3ac4239f6c9c 105 WriteCmd( 0x3a );
ttodorov 4:3ac4239f6c9c 106 WriteByteData( 0x05 );
ttodorov 4:3ac4239f6c9c 107 WriteCmd( 0x29 );
ttodorov 4:3ac4239f6c9c 108 wait_ms( 10 );
ttodorov 4:3ac4239f6c9c 109 WriteCmd( 0x2a );
ttodorov 4:3ac4239f6c9c 110 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 111 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 112 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 113 WriteByteData( 0xaf );
ttodorov 4:3ac4239f6c9c 114 WriteCmd( 0x2b );
ttodorov 4:3ac4239f6c9c 115 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 116 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 117 WriteByteData( 0x00 );
ttodorov 4:3ac4239f6c9c 118 WriteByteData( 0xdb );
ttodorov 4:3ac4239f6c9c 119 WriteCmd( 0x2c );
ttodorov 4:3ac4239f6c9c 120 Deactivate();
ttodorov 4:3ac4239f6c9c 121 }
ttodorov 4:3ac4239f6c9c 122
ttodorov 4:3ac4239f6c9c 123 void HX8340S_LCD::Sleep( void )
ttodorov 4:3ac4239f6c9c 124 {
ttodorov 4:3ac4239f6c9c 125 Activate();
ttodorov 4:3ac4239f6c9c 126 WriteCmd( 0x28 );
ttodorov 4:3ac4239f6c9c 127 wait_ms( 10 );
ttodorov 4:3ac4239f6c9c 128 WriteCmd( 0x10 );
ttodorov 4:3ac4239f6c9c 129 wait_ms( 125 );
ttodorov 4:3ac4239f6c9c 130 if ( _lcd_pin_bl != 0 )
ttodorov 4:3ac4239f6c9c 131 *_lcd_pin_bl = LOW;
ttodorov 4:3ac4239f6c9c 132 Deactivate();
ttodorov 4:3ac4239f6c9c 133 }
ttodorov 4:3ac4239f6c9c 134
ttodorov 4:3ac4239f6c9c 135 void HX8340S_LCD::WakeUp( void )
ttodorov 4:3ac4239f6c9c 136 {
ttodorov 4:3ac4239f6c9c 137 Activate();
ttodorov 4:3ac4239f6c9c 138 WriteCmd( 0x29 );
ttodorov 4:3ac4239f6c9c 139 wait_ms( 10 );
ttodorov 4:3ac4239f6c9c 140 WriteCmd( 0x11 );
ttodorov 4:3ac4239f6c9c 141 wait_ms( 125 );
ttodorov 4:3ac4239f6c9c 142 if ( _lcd_pin_bl != 0 )
ttodorov 4:3ac4239f6c9c 143 *_lcd_pin_bl = HIGH;
ttodorov 4:3ac4239f6c9c 144 Deactivate();
ttodorov 4:3ac4239f6c9c 145 }
ttodorov 4:3ac4239f6c9c 146
ttodorov 4:3ac4239f6c9c 147 void HX8340S_LCD::WriteCmd( unsigned short cmd )
ttodorov 4:3ac4239f6c9c 148 {
ttodorov 4:3ac4239f6c9c 149 _lcd_pin_sdi = LOW;
ttodorov 4:3ac4239f6c9c 150 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 151 serializeByte( cmd & 0xFF );
ttodorov 4:3ac4239f6c9c 152 }
ttodorov 4:3ac4239f6c9c 153
ttodorov 4:3ac4239f6c9c 154 void HX8340S_LCD::WriteData( unsigned short data )
ttodorov 4:3ac4239f6c9c 155 {
ttodorov 4:3ac4239f6c9c 156 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 157 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 158 serializeByte( ( data >> 8 ) & 0xFF );
ttodorov 4:3ac4239f6c9c 159 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 160 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 161 serializeByte( data & 0xFF );
ttodorov 4:3ac4239f6c9c 162 }
ttodorov 4:3ac4239f6c9c 163
ttodorov 4:3ac4239f6c9c 164 void HX8340S_LCD::WriteByteData( unsigned char data )
ttodorov 4:3ac4239f6c9c 165 {
ttodorov 4:3ac4239f6c9c 166 _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 167 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 168 serializeByte( data );
ttodorov 4:3ac4239f6c9c 169 }
ttodorov 4:3ac4239f6c9c 170
ttodorov 4:3ac4239f6c9c 171 void HX8340S_LCD::SetXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 )
ttodorov 4:3ac4239f6c9c 172 {
ttodorov 4:3ac4239f6c9c 173 if ( _orientation == LANDSCAPE )
ttodorov 4:3ac4239f6c9c 174 {
ttodorov 4:3ac4239f6c9c 175 swap( uint16_t, x1, y1 )
ttodorov 4:3ac4239f6c9c 176 swap( uint16_t, x2, y2 )
ttodorov 4:3ac4239f6c9c 177 y1 = _disp_height - y1;
ttodorov 4:3ac4239f6c9c 178 y2 = _disp_height - y2;
ttodorov 4:3ac4239f6c9c 179 swap( uint16_t, y1, y2 )
ttodorov 4:3ac4239f6c9c 180 }
ttodorov 4:3ac4239f6c9c 181
ttodorov 4:3ac4239f6c9c 182 WriteCmdData( 0x2a, x1 );
ttodorov 4:3ac4239f6c9c 183 WriteData( x2 );
ttodorov 4:3ac4239f6c9c 184 WriteCmdData( 0x2b, y1 );
ttodorov 4:3ac4239f6c9c 185 WriteData( y2 );
ttodorov 4:3ac4239f6c9c 186 WriteCmd( 0x2c );
ttodorov 4:3ac4239f6c9c 187 }
ttodorov 4:3ac4239f6c9c 188
ttodorov 10:69571adcfad5 189 void HX8340S_LCD::SetPixelColor( unsigned short color )
ttodorov 10:69571adcfad5 190 {
ttodorov 10:69571adcfad5 191 WriteData( color );
ttodorov 10:69571adcfad5 192 }
ttodorov 10:69571adcfad5 193
ttodorov 4:3ac4239f6c9c 194 void HX8340S_LCD::serializeByte( unsigned char data )
ttodorov 4:3ac4239f6c9c 195 {
ttodorov 4:3ac4239f6c9c 196 for ( int i = 0; i < 8; i++ )
ttodorov 4:3ac4239f6c9c 197 {
ttodorov 4:3ac4239f6c9c 198 if ( data & 0x80 ) _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 199 else _lcd_pin_sdi = LOW;
ttodorov 4:3ac4239f6c9c 200 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 201 data = data << 1;
ttodorov 4:3ac4239f6c9c 202 }
ttodorov 4:3ac4239f6c9c 203 }