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

ssd1289.cpp

Committer:
ttodorov
Date:
2012-12-11
Revision:
10:69571adcfad5
Parent:
4:3ac4239f6c9c
Child:
12:d0978272a340

File content as of revision 10:69571adcfad5:

/*
 * Copyright (C)2010-2012 Henning Karlsen. All right reserved.
 * Copyright (C)2012 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 "ssd1289.h"
#include "helpers.h"

SSD1289_LCD::SSD1289_LCD( PinName CS, PinName RESET, PinName RS, PinName WR, BusOut* DATA_PORT, PinName BL, PinName RD )
    : LCD( 240, 320, CS, RS, RESET ), _lcd_pin_wr( WR )
{
    _lcd_port = DATA_PORT;
    if ( BL != NC ) _lcd_pin_bl = new DigitalOut( BL );
    else _lcd_pin_bl = 0;
    if ( RD != NC ) _lcd_pin_rd = new DigitalOut( RD );
    else _lcd_pin_rd = 0;
}

void SSD1289_LCD::Initialize( orientation_t orientation )
{
    _orientation = orientation;
    
    _lcd_pin_reset = HIGH;
    wait_ms( 5 );
    _lcd_pin_reset = LOW;
    wait_ms( 15 );
    _lcd_pin_reset = HIGH;
    _lcd_pin_cs = HIGH;
    if ( _lcd_pin_bl != 0 )
        *_lcd_pin_bl = HIGH;
    if ( _lcd_pin_rd != 0 )
        *_lcd_pin_rd = HIGH;
    _lcd_pin_wr = HIGH;
    wait_ms( 15 );
    
    Activate();
    WriteCmdData( 0x00, 0x0001 ); wait_ms( 1 );
    WriteCmdData( 0x03, 0xA8A4 ); wait_ms( 1 );
    WriteCmdData( 0x0C, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x0D, 0x080C ); wait_ms( 1 );
    WriteCmdData( 0x0E, 0x2B00 ); wait_ms( 1 );
    WriteCmdData( 0x1E, 0x00B7 ); wait_ms( 1 );
    WriteCmdData( 0x01, 0x2B3F ); wait_ms( 1 );
    WriteCmdData( 0x02, 0x0600 ); wait_ms( 1 );
    WriteCmdData( 0x10, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x11, 0x6070 ); wait_ms( 1 );
    WriteCmdData( 0x05, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x06, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x16, 0xEF1C ); wait_ms( 1 );
    WriteCmdData( 0x17, 0x0003 ); wait_ms( 1 );
    WriteCmdData( 0x07, 0x0233 ); wait_ms( 1 );
    WriteCmdData( 0x0B, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x0F, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x41, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x42, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x48, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x49, 0x013F ); wait_ms( 1 );
    WriteCmdData( 0x4A, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x4B, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x44, 0xEF00 ); wait_ms( 1 );
    WriteCmdData( 0x45, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x46, 0x013F ); wait_ms( 1 );
    WriteCmdData( 0x30, 0x0707 ); wait_ms( 1 );
    WriteCmdData( 0x31, 0x0204 ); wait_ms( 1 );
    WriteCmdData( 0x32, 0x0204 ); wait_ms( 1 );
    WriteCmdData( 0x33, 0x0502 ); wait_ms( 1 );
    WriteCmdData( 0x34, 0x0507 ); wait_ms( 1 );
    WriteCmdData( 0x35, 0x0204 ); wait_ms( 1 );
    WriteCmdData( 0x36, 0x0204 ); wait_ms( 1 );
    WriteCmdData( 0x37, 0x0502 ); wait_ms( 1 );
    WriteCmdData( 0x3A, 0x0302 ); wait_ms( 1 );
    WriteCmdData( 0x3B, 0x0302 ); wait_ms( 1 );
    WriteCmdData( 0x23, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x24, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x25, 0x8000 ); wait_ms( 1 );
    WriteCmdData( 0x4f, 0x0000 ); wait_ms( 1 );
    WriteCmdData( 0x4e, 0x0000 ); wait_ms( 1 );
    WriteCmd( 0x22 );
    Deactivate();
}

void SSD1289_LCD::Sleep( void )
{
    // TODO: figure out if the SSD1289 controller has sleep and wakeup commands
    if ( _lcd_pin_bl != 0 )
        *_lcd_pin_bl = LOW;
}

void SSD1289_LCD::WakeUp( void )
{
    // TODO: figure out if the SSD1289 controller has sleep and wakeup commands
    if ( _lcd_pin_bl != 0 )
        *_lcd_pin_bl = HIGH;
}

void SSD1289_LCD::WriteCmd( unsigned short cmd )
{
    _lcd_pin_rs = LOW;
    _lcd_port->write( cmd );
    pulseLow( _lcd_pin_wr );
}

void SSD1289_LCD::WriteData( unsigned short data )
{
    _lcd_pin_rs = HIGH;
    _lcd_port->write( data );
    pulseLow( _lcd_pin_wr );
}

void SSD1289_LCD::SetXY( uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2 )
{
    if ( _orientation == LANDSCAPE )
    {
        swap( uint16_t, x1, y1 )
        swap( uint16_t, x2, y2 )
        y1 = _disp_height - y1;
        y2 = _disp_height - y2;
        swap( uint16_t, y1, y2 )
    }

    WriteCmdData( 0x44, ( x2 << 8 ) + x1 );
    WriteCmdData( 0x45, y1 );
    WriteCmdData( 0x46, y2 );
    WriteCmdData( 0x4e, x1 );
    WriteCmdData( 0x4f, y1 );
    WriteCmd( 0x22 );
}

void SSD1289_LCD::SetPixelColor( unsigned short color )
{
    WriteData( color );
}