A modifiedversion of TFTLCD by Todor Todorov with ultra-fast operation for SSD1289 controller. TODO: speed-up fonts, add my own fonts Can work out-of-the-box with ST Nucleo F401RE
Dependents: TFT_320QVT_Window_Drag_Demo TFT_320QVT_HelloWorld
Fork of TFTLCD by
st7735.cpp@9:58b328831d0a, 2012-12-07 (annotated)
- Committer:
- ttodorov
- Date:
- Fri Dec 07 16:14:13 2012 +0000
- Revision:
- 9:58b328831d0a
- Child:
- 10:69571adcfad5
- reverted changes for 262K colors, will branch out later; - added ST7735 LCD driver
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ttodorov | 9:58b328831d0a | 1 | /* |
ttodorov | 9:58b328831d0a | 2 | * Copyright (C)2010-2012 Henning Karlsen. All right reserved. |
ttodorov | 9:58b328831d0a | 3 | * Copyright (C)2012 Todor Todorov. |
ttodorov | 9:58b328831d0a | 4 | * |
ttodorov | 9:58b328831d0a | 5 | * This library is free software; you can redistribute it and/or |
ttodorov | 9:58b328831d0a | 6 | * modify it under the terms of the GNU Lesser General Public |
ttodorov | 9:58b328831d0a | 7 | * License as published by the Free Software Foundation; either |
ttodorov | 9:58b328831d0a | 8 | * version 2.1 of the License, or (at your option) any later version. |
ttodorov | 9:58b328831d0a | 9 | * |
ttodorov | 9:58b328831d0a | 10 | * This library is distributed in the hope that it will be useful, |
ttodorov | 9:58b328831d0a | 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
ttodorov | 9:58b328831d0a | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
ttodorov | 9:58b328831d0a | 13 | * Lesser General Public License for more details. |
ttodorov | 9:58b328831d0a | 14 | * |
ttodorov | 9:58b328831d0a | 15 | * You should have received a copy of the GNU Lesser General Public |
ttodorov | 9:58b328831d0a | 16 | * License along with this library; if not, write to: |
ttodorov | 9:58b328831d0a | 17 | * |
ttodorov | 9:58b328831d0a | 18 | * Free Software Foundation, Inc. |
ttodorov | 9:58b328831d0a | 19 | * 51 Franklin St, 5th Floor, Boston, MA 02110-1301, USA |
ttodorov | 9:58b328831d0a | 20 | * |
ttodorov | 9:58b328831d0a | 21 | *********************************************************************/ |
ttodorov | 9:58b328831d0a | 22 | #include "st7735.h" |
ttodorov | 9:58b328831d0a | 23 | #include "helpers.h" |
ttodorov | 9:58b328831d0a | 24 | |
ttodorov | 9:58b328831d0a | 25 | ST7735_LCD::ST7735_LCD( PinName CS, PinName RESET, PinName RS, PinName SCL, PinName SDA, PinName BL ) |
ttodorov | 9:58b328831d0a | 26 | : LCD( 128, 160, CS, RS, RESET ), _lcd_pin_scl( SCL ), _lcd_pin_sda( SDA ) |
ttodorov | 9:58b328831d0a | 27 | { |
ttodorov | 9:58b328831d0a | 28 | if ( BL != NC ) _lcd_pin_bl = new DigitalOut( BL ); |
ttodorov | 9:58b328831d0a | 29 | else _lcd_pin_bl = 0; |
ttodorov | 9:58b328831d0a | 30 | } |
ttodorov | 9:58b328831d0a | 31 | |
ttodorov | 9:58b328831d0a | 32 | void ST7735_LCD::Initialize( orientation_t orientation ) |
ttodorov | 9:58b328831d0a | 33 | { |
ttodorov | 9:58b328831d0a | 34 | _orientation = orientation; |
ttodorov | 9:58b328831d0a | 35 | |
ttodorov | 9:58b328831d0a | 36 | wait_ms( 100 ); |
ttodorov | 9:58b328831d0a | 37 | _lcd_pin_reset = HIGH; |
ttodorov | 9:58b328831d0a | 38 | wait_ms( 5 ); |
ttodorov | 9:58b328831d0a | 39 | _lcd_pin_reset = LOW; |
ttodorov | 9:58b328831d0a | 40 | wait_ms( 15 ); |
ttodorov | 9:58b328831d0a | 41 | _lcd_pin_reset = HIGH; |
ttodorov | 9:58b328831d0a | 42 | _lcd_pin_cs = HIGH; |
ttodorov | 9:58b328831d0a | 43 | _lcd_pin_rs = HIGH; |
ttodorov | 9:58b328831d0a | 44 | _lcd_pin_scl = HIGH; |
ttodorov | 9:58b328831d0a | 45 | _lcd_pin_sda = HIGH; |
ttodorov | 9:58b328831d0a | 46 | if ( _lcd_pin_bl != 0 ) |
ttodorov | 9:58b328831d0a | 47 | *_lcd_pin_bl = HIGH; |
ttodorov | 9:58b328831d0a | 48 | wait_ms( 55 ); |
ttodorov | 9:58b328831d0a | 49 | |
ttodorov | 9:58b328831d0a | 50 | Activate(); |
ttodorov | 9:58b328831d0a | 51 | WriteCmd( 0x01 ); // SW reset |
ttodorov | 9:58b328831d0a | 52 | wait_ms( 120 ); |
ttodorov | 9:58b328831d0a | 53 | |
ttodorov | 9:58b328831d0a | 54 | WriteCmd( 0x11 ); // sleep out |
ttodorov | 9:58b328831d0a | 55 | wait_ms( 120 ); |
ttodorov | 9:58b328831d0a | 56 | |
ttodorov | 9:58b328831d0a | 57 | WriteCmd( 0xB1 ); // frame control 1 |
ttodorov | 9:58b328831d0a | 58 | WriteByteData( 0x01 ); |
ttodorov | 9:58b328831d0a | 59 | WriteByteData( 0x2C ); |
ttodorov | 9:58b328831d0a | 60 | WriteByteData( 0x2D ); |
ttodorov | 9:58b328831d0a | 61 | WriteCmd( 0xB2 ); // frame control 2 |
ttodorov | 9:58b328831d0a | 62 | WriteByteData( 0x01 ); |
ttodorov | 9:58b328831d0a | 63 | WriteByteData( 0x2C ); |
ttodorov | 9:58b328831d0a | 64 | WriteByteData( 0x2D ); |
ttodorov | 9:58b328831d0a | 65 | WriteCmd( 0xB3 ); // frame control 3 |
ttodorov | 9:58b328831d0a | 66 | WriteByteData( 0x01 ); |
ttodorov | 9:58b328831d0a | 67 | WriteByteData( 0x2C ); |
ttodorov | 9:58b328831d0a | 68 | WriteByteData( 0x2D ); |
ttodorov | 9:58b328831d0a | 69 | WriteByteData( 0x01 ); |
ttodorov | 9:58b328831d0a | 70 | WriteByteData( 0x2C ); |
ttodorov | 9:58b328831d0a | 71 | WriteByteData( 0x2D ); |
ttodorov | 9:58b328831d0a | 72 | |
ttodorov | 9:58b328831d0a | 73 | WriteCmd( 0xB4 ); // column inversion |
ttodorov | 9:58b328831d0a | 74 | WriteByteData( 0x07 ); |
ttodorov | 9:58b328831d0a | 75 | |
ttodorov | 9:58b328831d0a | 76 | // ST7735R Power Sequence |
ttodorov | 9:58b328831d0a | 77 | WriteCmd( 0xC0 ); // power control 1 |
ttodorov | 9:58b328831d0a | 78 | WriteByteData( 0xA2 ); |
ttodorov | 9:58b328831d0a | 79 | WriteByteData( 0x02 ); |
ttodorov | 9:58b328831d0a | 80 | WriteByteData( 0x84 ); |
ttodorov | 9:58b328831d0a | 81 | WriteCmd( 0xC1 ); // power control 2 |
ttodorov | 9:58b328831d0a | 82 | WriteByteData( 0xC5 ); |
ttodorov | 9:58b328831d0a | 83 | WriteCmd( 0xC2 ); // power control 3 |
ttodorov | 9:58b328831d0a | 84 | WriteByteData( 0x0A ); |
ttodorov | 9:58b328831d0a | 85 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 86 | WriteCmd( 0xC3 ); // power control 4 |
ttodorov | 9:58b328831d0a | 87 | WriteByteData( 0x8A ); |
ttodorov | 9:58b328831d0a | 88 | WriteByteData( 0x2A ); |
ttodorov | 9:58b328831d0a | 89 | WriteCmd( 0xC4 ); // power control 5 |
ttodorov | 9:58b328831d0a | 90 | WriteByteData( 0x8A ); |
ttodorov | 9:58b328831d0a | 91 | WriteByteData( 0xEE ); |
ttodorov | 9:58b328831d0a | 92 | |
ttodorov | 9:58b328831d0a | 93 | WriteCmd( 0xC5 ); // voltage control 1 |
ttodorov | 9:58b328831d0a | 94 | WriteByteData( 0x0E ); |
ttodorov | 9:58b328831d0a | 95 | |
ttodorov | 9:58b328831d0a | 96 | WriteCmd( 0x36 ); //MX, MY, RGB mode |
ttodorov | 9:58b328831d0a | 97 | WriteByteData( 0xC8 ); |
ttodorov | 9:58b328831d0a | 98 | |
ttodorov | 9:58b328831d0a | 99 | // ST7735R Gamma Sequence |
ttodorov | 9:58b328831d0a | 100 | WriteCmd( 0xE0 ); // gamma positive |
ttodorov | 9:58b328831d0a | 101 | WriteByteData( 0x0F ); |
ttodorov | 9:58b328831d0a | 102 | WriteByteData( 0x1A ); |
ttodorov | 9:58b328831d0a | 103 | WriteByteData( 0x0F ); |
ttodorov | 9:58b328831d0a | 104 | WriteByteData( 0x18 ); |
ttodorov | 9:58b328831d0a | 105 | WriteByteData( 0x2F ); |
ttodorov | 9:58b328831d0a | 106 | WriteByteData( 0x28 ); |
ttodorov | 9:58b328831d0a | 107 | WriteByteData( 0x20 ); |
ttodorov | 9:58b328831d0a | 108 | WriteByteData( 0x22 ); |
ttodorov | 9:58b328831d0a | 109 | WriteByteData( 0x1F ); |
ttodorov | 9:58b328831d0a | 110 | WriteByteData( 0x1B ); |
ttodorov | 9:58b328831d0a | 111 | WriteByteData( 0x23 ); |
ttodorov | 9:58b328831d0a | 112 | WriteByteData( 0x37 ); |
ttodorov | 9:58b328831d0a | 113 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 114 | WriteByteData( 0x07 ); |
ttodorov | 9:58b328831d0a | 115 | WriteByteData( 0x02 ); |
ttodorov | 9:58b328831d0a | 116 | WriteByteData( 0x10 ); |
ttodorov | 9:58b328831d0a | 117 | WriteCmd( 0xE1 ); // gamma negative |
ttodorov | 9:58b328831d0a | 118 | WriteByteData( 0x0F ); |
ttodorov | 9:58b328831d0a | 119 | WriteByteData( 0x1B ); |
ttodorov | 9:58b328831d0a | 120 | WriteByteData( 0x0F ); |
ttodorov | 9:58b328831d0a | 121 | WriteByteData( 0x17 ); |
ttodorov | 9:58b328831d0a | 122 | WriteByteData( 0x33 ); |
ttodorov | 9:58b328831d0a | 123 | WriteByteData( 0x2C ); |
ttodorov | 9:58b328831d0a | 124 | WriteByteData( 0x29 ); |
ttodorov | 9:58b328831d0a | 125 | WriteByteData( 0x2E ); |
ttodorov | 9:58b328831d0a | 126 | WriteByteData( 0x30 ); |
ttodorov | 9:58b328831d0a | 127 | WriteByteData( 0x30 ); |
ttodorov | 9:58b328831d0a | 128 | WriteByteData( 0x39 ); |
ttodorov | 9:58b328831d0a | 129 | WriteByteData( 0x3F ); |
ttodorov | 9:58b328831d0a | 130 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 131 | WriteByteData( 0x07 ); |
ttodorov | 9:58b328831d0a | 132 | WriteByteData( 0x03 ); |
ttodorov | 9:58b328831d0a | 133 | WriteByteData( 0x10 ); |
ttodorov | 9:58b328831d0a | 134 | |
ttodorov | 9:58b328831d0a | 135 | WriteCmd( 0x2A ); // set column address |
ttodorov | 9:58b328831d0a | 136 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 137 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 138 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 139 | WriteByteData( 0x7F ); |
ttodorov | 9:58b328831d0a | 140 | WriteCmd( 0x2B ); // set row address |
ttodorov | 9:58b328831d0a | 141 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 142 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 143 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 144 | WriteByteData( 0x9F ); |
ttodorov | 9:58b328831d0a | 145 | |
ttodorov | 9:58b328831d0a | 146 | WriteCmd( 0xF0 ); // enable extensions command |
ttodorov | 9:58b328831d0a | 147 | WriteByteData( 0x01 ); |
ttodorov | 9:58b328831d0a | 148 | WriteCmd( 0xF6 ); // disable ram power save mode |
ttodorov | 9:58b328831d0a | 149 | WriteByteData( 0x00 ); |
ttodorov | 9:58b328831d0a | 150 | |
ttodorov | 9:58b328831d0a | 151 | WriteCmd( 0x3A ); // interface pixel format (color mode) |
ttodorov | 9:58b328831d0a | 152 | WriteByteData( 0x05 ); // 65k mode |
ttodorov | 9:58b328831d0a | 153 | WriteCmd( 0x29 ); // display on |
ttodorov | 9:58b328831d0a | 154 | |
ttodorov | 9:58b328831d0a | 155 | Deactivate(); |
ttodorov | 9:58b328831d0a | 156 | } |
ttodorov | 9:58b328831d0a | 157 | |
ttodorov | 9:58b328831d0a | 158 | void ST7735_LCD::Sleep( void ) |
ttodorov | 9:58b328831d0a | 159 | { |
ttodorov | 9:58b328831d0a | 160 | Activate(); |
ttodorov | 9:58b328831d0a | 161 | WriteCmd( 0x28 ); |
ttodorov | 9:58b328831d0a | 162 | wait_ms( 10 ); |
ttodorov | 9:58b328831d0a | 163 | WriteCmd( 0x10 ); |
ttodorov | 9:58b328831d0a | 164 | wait_ms( 125 ); |
ttodorov | 9:58b328831d0a | 165 | if ( _lcd_pin_bl != 0 ) |
ttodorov | 9:58b328831d0a | 166 | *_lcd_pin_bl = LOW; |
ttodorov | 9:58b328831d0a | 167 | Deactivate(); |
ttodorov | 9:58b328831d0a | 168 | } |
ttodorov | 9:58b328831d0a | 169 | |
ttodorov | 9:58b328831d0a | 170 | void ST7735_LCD::WakeUp( void ) |
ttodorov | 9:58b328831d0a | 171 | { |
ttodorov | 9:58b328831d0a | 172 | Activate(); |
ttodorov | 9:58b328831d0a | 173 | WriteCmd( 0x29 ); |
ttodorov | 9:58b328831d0a | 174 | wait_ms( 10 ); |
ttodorov | 9:58b328831d0a | 175 | WriteCmd( 0x11 ); |
ttodorov | 9:58b328831d0a | 176 | wait_ms( 125 ); |
ttodorov | 9:58b328831d0a | 177 | if ( _lcd_pin_bl != 0 ) |
ttodorov | 9:58b328831d0a | 178 | *_lcd_pin_bl = HIGH; |
ttodorov | 9:58b328831d0a | 179 | Deactivate(); |
ttodorov | 9:58b328831d0a | 180 | } |
ttodorov | 9:58b328831d0a | 181 | |
ttodorov | 9:58b328831d0a | 182 | void ST7735_LCD::WriteCmd( unsigned short cmd ) |
ttodorov | 9:58b328831d0a | 183 | { |
ttodorov | 9:58b328831d0a | 184 | _lcd_pin_rs = LOW; |
ttodorov | 9:58b328831d0a | 185 | serializeByte( cmd & 0xFF ); |
ttodorov | 9:58b328831d0a | 186 | } |
ttodorov | 9:58b328831d0a | 187 | |
ttodorov | 9:58b328831d0a | 188 | void ST7735_LCD::WriteData( unsigned short data ) |
ttodorov | 9:58b328831d0a | 189 | { |
ttodorov | 9:58b328831d0a | 190 | _lcd_pin_rs = HIGH; |
ttodorov | 9:58b328831d0a | 191 | serializeByte( ( data >> 8 ) & 0xFF ); |
ttodorov | 9:58b328831d0a | 192 | serializeByte( data & 0xFF ); |
ttodorov | 9:58b328831d0a | 193 | } |
ttodorov | 9:58b328831d0a | 194 | |
ttodorov | 9:58b328831d0a | 195 | void ST7735_LCD::WriteByteData( unsigned char data ) |
ttodorov | 9:58b328831d0a | 196 | { |
ttodorov | 9:58b328831d0a | 197 | _lcd_pin_rs = HIGH; |
ttodorov | 9:58b328831d0a | 198 | serializeByte( data ); |
ttodorov | 9:58b328831d0a | 199 | } |
ttodorov | 9:58b328831d0a | 200 | |
ttodorov | 9:58b328831d0a | 201 | void ST7735_LCD::SetXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 ) |
ttodorov | 9:58b328831d0a | 202 | { |
ttodorov | 9:58b328831d0a | 203 | if ( _orientation == LANDSCAPE ) |
ttodorov | 9:58b328831d0a | 204 | { |
ttodorov | 9:58b328831d0a | 205 | swap( uint16_t, x1, y1 ) |
ttodorov | 9:58b328831d0a | 206 | swap( uint16_t, x2, y2 ) |
ttodorov | 9:58b328831d0a | 207 | y1 = _disp_height - y1; |
ttodorov | 9:58b328831d0a | 208 | y2 = _disp_height - y2; |
ttodorov | 9:58b328831d0a | 209 | swap( uint16_t, y1, y2 ) |
ttodorov | 9:58b328831d0a | 210 | } |
ttodorov | 9:58b328831d0a | 211 | |
ttodorov | 9:58b328831d0a | 212 | WriteCmdData( 0x2a, x1 ); |
ttodorov | 9:58b328831d0a | 213 | WriteData( x2 ); |
ttodorov | 9:58b328831d0a | 214 | WriteCmdData( 0x2b, y1 ); |
ttodorov | 9:58b328831d0a | 215 | WriteData( y2 ); |
ttodorov | 9:58b328831d0a | 216 | WriteCmd( 0x2c ); |
ttodorov | 9:58b328831d0a | 217 | } |
ttodorov | 9:58b328831d0a | 218 | |
ttodorov | 9:58b328831d0a | 219 | void ST7735_LCD::serializeByte( unsigned char data ) |
ttodorov | 9:58b328831d0a | 220 | { |
ttodorov | 9:58b328831d0a | 221 | for ( int i = 0; i < 8; i++ ) |
ttodorov | 9:58b328831d0a | 222 | { |
ttodorov | 9:58b328831d0a | 223 | if ( data & 0x80 ) _lcd_pin_sda = HIGH; |
ttodorov | 9:58b328831d0a | 224 | else _lcd_pin_sda = LOW; |
ttodorov | 9:58b328831d0a | 225 | pulseLow( _lcd_pin_scl ); |
ttodorov | 9:58b328831d0a | 226 | data = data << 1; |
ttodorov | 9:58b328831d0a | 227 | } |
ttodorov | 9:58b328831d0a | 228 | } |