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. This fork is for 8 bit interface. I will add proper switch in later commit
Fork of TFTLCD by
ili9325.cpp
- Committer:
- ThihaElectronics
- Date:
- 2014-12-03
- Revision:
- 32:155abe4126e3
- Parent:
- 30:5f23a4cbebd7
File content as of revision 32:155abe4126e3:
/* * Copyright (C)2010-2012 Henning Karlsen. All right reserved. * Copyright (C)2012-2013 Todor Todorov. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to: * * Free Software Foundation, Inc. * 51 Franklin St, 5th Floor, Boston, MA 02110-1301, USA * *********************************************************************/ #include "ili9325.h" #include "helpers.h" ILI9325_LCD::ILI9325_LCD( PinName CS, PinName RESET, PinName RS, PinName WR, BusOut* DATA_PORT, PinName BL, PinName RD, backlight_t blType, float defaultBackLightLevel ) : LCD( 240, 320, CS, RS, RESET, BL, blType, defaultBackLightLevel ), _lcd_pin_wr( WR ) { _lcd_port = DATA_PORT; if ( RD != NC ) _lcd_pin_rd = new DigitalOut( RD ); else _lcd_pin_rd = 0; } void ILI9325_LCD::Initialize( orientation_t orientation, colordepth_t colors ) { _orientation = orientation; _colorDepth = colors; _lcd_pin_reset = HIGH; // wait_ms( 50 ); wait_ms( 100 ); _lcd_pin_reset = LOW; // wait_ms( 100 ); wait_ms( 200 ); _lcd_pin_reset = HIGH; // wait_ms( 1000 ); wait_ms( 1000 ); _lcd_pin_cs = HIGH; if ( _lcd_pin_bl != 0 ) *_lcd_pin_bl = HIGH; else if ( _bl_pwm != 0 ) *_bl_pwm = _bl_pwm_default; if ( _lcd_pin_rd != 0 ) *_lcd_pin_rd = HIGH; _lcd_pin_wr = HIGH; // wait_ms( 15 ); wait_ms( 50 ); Activate(); short drivOut = 0; short entryMod = 0; short gateScan = 0x2700; switch ( _orientation ) { case LANDSCAPE: drivOut = 0x0100; entryMod |= 0x0038; gateScan |= 0x0000; break; case LANDSCAPE_REV: drivOut = 0x0000; entryMod |= 0x0038; gateScan |= 0x8000; break; case PORTRAIT_REV: drivOut = 0x0000; entryMod |= 0x0030; gateScan |= 0x0000; break; case PORTRAIT: default: drivOut = 0x0100; entryMod |= 0x0030; gateScan |= 0x8000; break; } switch ( _colorDepth ) { case RGB18: entryMod |= 0x9000; break; case RGB16: default: entryMod |= 0x1000; break; } // WriteCmdData( 0xE5, 0x78F0 ); // set SRAM internal timing WriteCmdData( 0xE5, 0x8000 ); // set SRAM internal timing WriteCmdData( 0x00, 0x0000 ); // set Driver Output Control WriteCmdData( 0x01, drivOut ); // set Driver Output Control // WriteCmdData( 0x02, 0x0200 ); // set 1 line inversion WriteCmdData( 0x02, 0x0700 ); // set 1 line inversion WriteCmdData( 0x03, entryMod ); // set GRAM write direction and BGR=1. WriteCmdData( 0x04, 0x0000 ); // Resize register // WriteCmdData( 0x08, 0x0207 ); // set the back porch and front porch WriteCmdData( 0x08, 0x0202 ); // set the back porch and front porch WriteCmdData( 0x09, 0x0000 ); // set non-display area refresh cycle ISC[3:0] WriteCmdData( 0x0A, 0x0000 ); // FMARK function WriteCmdData( 0x0C, 0x0000 ); // RGB interface setting WriteCmdData( 0x0D, 0x0000 ); // Frame marker Position WriteCmdData( 0x0F, 0x0000 ); // RGB interface polarity // ----------- Power On sequence ----------- // WriteCmdData( 0x10, 0x0000 ); // SAP, BT[3:0], AP, DSTB, SLP, STB // WriteCmdData( 0x11, 0x0007 ); // DC1[2:0], DC0[2:0], VC[2:0] WriteCmdData( 0x11, 0x0000 ); // DC1[2:0], DC0[2:0], VC[2:0] WriteCmdData( 0x12, 0x0000 ); // VREG1OUT voltage WriteCmdData( 0x13, 0x0000 ); // VDV[4:0] for VCOM amplitude // WriteCmdData( 0x07, 0x0001 ); wait_ms( 200 ); // Dis-charge capacitor power voltage // WriteCmdData( 0x10, 0x1690 ); // SAP, BT[3:0], AP, DSTB, SLP, STB WriteCmdData( 0x10, 0x17B0 ); // SAP, BT[3:0], AP, DSTB, SLP, STB // WriteCmdData( 0x11, 0x0227 ); // Set DC1[2:0], DC0[2:0], VC[2:0] WriteCmdData( 0x11, 0x0037 ); // Set DC1[2:0], DC0[2:0], VC[2:0] wait_ms( 50 ); // Delay 50ms // WriteCmdData( 0x12, 0x000D ); // 0012 WriteCmdData( 0x12, 0x0138 ); // 0012 wait_ms( 50 ); // Delay 50ms // WriteCmdData( 0x13, 0x1200 ); // VDV[4:0] for VCOM amplitude WriteCmdData( 0x13, 0x1700 ); // VDV[4:0] for VCOM amplitude // WriteCmdData( 0x29, 0x000A ); // 04 VCM[5:0] for VCOMH WriteCmdData( 0x29, 0x000D ); // 04 VCM[5:0] for VCOMH WriteCmdData( 0x2B, 0x000D ); // Set Frame Rate wait_ms( 50 ); // Delay 50ms WriteCmdData( 0x20, 0x0000 ); // GRAM horizontal Address WriteCmdData( 0x21, 0x0000 ); // GRAM Vertical Address // ----------- Adjust the Gamma Curve ----------// // WriteCmdData( 0x30, 0x0000 ); WriteCmdData( 0x30, 0x0001 ); // WriteCmdData( 0x31, 0x0404 ); WriteCmdData( 0x31, 0x0606 ); // WriteCmdData( 0x32, 0x0003 ); WriteCmdData( 0x32, 0x0304 ); //new line WriteCmdData( 0x33, 0x0202 ); WriteCmdData( 0x34, 0x0202 ); // WriteCmdData( 0x35, 0x0405 ); WriteCmdData( 0x35, 0x0103 ); // WriteCmdData( 0x36, 0x0808 ); WriteCmdData( 0x36, 0x011D ); // WriteCmdData( 0x37, 0x0407 ); WriteCmdData( 0x37, 0x0404 ); // WriteCmdData( 0x38, 0x0303 ); WriteCmdData( 0x38, 0x0404 ); // WriteCmdData( 0x39, 0x0707 ); WriteCmdData( 0x39, 0x0404 ); // WriteCmdData( 0x3C, 0x0504 ); WriteCmdData( 0x3C, 0x0700 ); // WriteCmdData( 0x3D, 0x0808 ); WriteCmdData( 0x3D, 0x0A1F ); //------------------ Set GRAM area ---------------// WriteCmdData( 0x50, 0x0000 ); // Horizontal GRAM Start Address WriteCmdData( 0x51, 0x00EF ); // Horizontal GRAM End Address WriteCmdData( 0x52, 0x0000 ); // Vertical GRAM Start Address WriteCmdData( 0x53, 0x013F ); // Vertical GRAM Start Address WriteCmdData( 0x60, gateScan ); // Gate Scan Line (0xA700) // WriteCmdData( 0x61, 0x0000 ); // NDL,VLE, REV WriteCmdData( 0x61, 0x0001 ); // NDL,VLE, REV WriteCmdData( 0x6A, 0x0000 ); // set scrolling line //-------------- Partial Display Control ---------// WriteCmdData( 0x80, 0x0000 ); WriteCmdData( 0x81, 0x0000 ); WriteCmdData( 0x82, 0x0000 ); WriteCmdData( 0x83, 0x0000 ); WriteCmdData( 0x84, 0x0000 ); WriteCmdData( 0x85, 0x0000 ); //-------------- Panel Control -------------------// WriteCmdData( 0x90, 0x0010 ); WriteCmdData( 0x92, 0x0000 ); //new lines WriteCmdData( 0x93, 0x0003 ); WriteCmdData( 0x95, 0x0101 ); WriteCmdData( 0x97, 0x0000 ); WriteCmdData( 0x98, 0x0000 ); // WriteCmdData( 0x07, 0x0133 ); // 262K color and display ON WriteCmdData( 0x07, 0x0021 ); // 262K color and display ON WriteCmdData( 0x07, 0x0031 ); // 262K color and display ON WriteCmdData( 0x07, 0x0173 ); // 262K color and display ON //new line wait_ms( 50 ); // Delay 50ms Deactivate(); } void ILI9325_LCD::Sleep( void ) { Activate(); WriteCmdData( 0x10, 0x1692 ); // enter sleep mode wait_ms( 200 ); LCD::Sleep(); Deactivate(); } void ILI9325_LCD::WakeUp( void ) { Activate(); WriteCmdData( 0x10, 0x1690 ); // exit sleep mode wait_ms( 200 ); LCD::WakeUp(); Deactivate(); } void ILI9325_LCD::WriteCmd( unsigned short cmd ) { unsigned short u,l; u = (cmd>>8) & 0xFF; l = cmd & 0xFF; //New _lcd_pin_cs = LOW; // _lcd_pin_rs = LOW; //New *_lcd_pin_rd = HIGH; _lcd_pin_wr = HIGH; // _lcd_port->write( u ); pulseLow( _lcd_pin_wr ); _lcd_port->write( l ); pulseLow( _lcd_pin_wr ); //New _lcd_pin_cs = HIGH; // } void ILI9325_LCD::WriteData( unsigned short data ) { unsigned short u,l; u = (data>>8) & 0xFF; l = data & 0xFF; //New _lcd_pin_cs = LOW; // _lcd_pin_rs = HIGH; //New *_lcd_pin_rd = HIGH; _lcd_pin_wr = HIGH; // _lcd_port->write( u ); pulseLow( _lcd_pin_wr ); _lcd_port->write( l ); pulseLow( _lcd_pin_wr ); //New _lcd_pin_cs = HIGH; // } void ILI9325_LCD::SetXY( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2 ) { switch ( _orientation ) { case LANDSCAPE: case LANDSCAPE_REV: WriteCmdData( 0x20, y1 ); WriteCmdData( 0x21, x1 ); WriteCmdData( 0x50, y1 ); WriteCmdData( 0x52, x1 ); WriteCmdData( 0x51, y2 ); WriteCmdData( 0x53, x2 ); break; case PORTRAIT_REV: case PORTRAIT: default: WriteCmdData( 0x20, x1 ); WriteCmdData( 0x21, y1 ); WriteCmdData( 0x50, x1 ); WriteCmdData( 0x52, y1 ); WriteCmdData( 0x51, x2 ); WriteCmdData( 0x53, y2 ); break; } WriteCmd( 0x22 ); } void ILI9325_LCD::SetPixelColor( unsigned int color, colordepth_t mode ) { unsigned char r, g, b; unsigned short clr; r = g = b = 0; if ( _colorDepth == RGB16 ) { switch ( mode ) { case RGB16: WriteData( color & 0xFFFF ); break; case RGB18: r = ( color >> 10 ) & 0xF8; g = ( color >> 4 ) & 0xFC; b = ( color >> 1 ) & 0x1F; clr = ( ( r | ( g >> 5 ) ) << 8 ) | ( ( g << 3 ) | b ); WriteData( clr ); break; case RGB24: r = ( color >> 16 ) & 0xF8; g = ( color >> 8 ) & 0xFC; b = color & 0xF8; clr = ( ( r | ( g >> 5 ) ) << 8 ) | ( ( g << 3 ) | ( b >> 3 ) ); WriteData( clr ); break; } } else if ( _colorDepth == RGB18 ) { switch ( mode ) { case RGB16: r = ( ( color >> 8 ) & 0xF8 ) | ( ( color & 0x8000 ) >> 13 ); g = ( color >> 3 ) & 0xFC; b = ( ( color << 3 ) & 0xFC ) | ( ( color >> 3 ) & 0x01 ); break; case RGB18: b = ( color << 2 ) & 0xFC; g = ( color >> 4 ) & 0xFC; r = ( color >> 10 ) & 0xFC; break; case RGB24: r = ( color >> 16 ) & 0xFC; g = ( color >> 8 ) & 0xFC; b = color & 0xFC; break; } clr = ( r << 8 ) | ( g << 2 ) | ( b >> 4 ); WriteData( clr ); WriteData( b << 4 ); } }