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@4:3ac4239f6c9c, 2012-12-02 (annotated)

Committer:
ttodorov
Date:
Sun Dec 02 05:44:52 2012 +0000
Revision:
4:3ac4239f6c9c
Child:
9:58b328831d0a
- renamed SSD1289 implementation; - refactored base class functions and removed redundant addressing; - added sleep and wake functions; - added HX8340B serial implementation; - fixed test case

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 4:3ac4239f6c9c 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 4:3ac4239f6c9c 189 void HX8340S_LCD::serializeByte( unsigned char data )
ttodorov 4:3ac4239f6c9c 190 {
ttodorov 4:3ac4239f6c9c 191 for ( int i = 0; i < 8; i++ )
ttodorov 4:3ac4239f6c9c 192 {
ttodorov 4:3ac4239f6c9c 193 if ( data & 0x80 ) _lcd_pin_sdi = HIGH;
ttodorov 4:3ac4239f6c9c 194 else _lcd_pin_sdi = LOW;
ttodorov 4:3ac4239f6c9c 195 pulseLow( _lcd_pin_scl );
ttodorov 4:3ac4239f6c9c 196 data = data << 1;
ttodorov 4:3ac4239f6c9c 197 }
ttodorov 4:3ac4239f6c9c 198 }