Rune Langoy / mcufriend_24_tft_lcd

mcufriend 2.4 TFT LCD Shield Lib

Dependents:   Nucleo_LCD_mcufriend_test

Fork of 24_TFT_STMNUCLEO by Carlos Silva

mcufriend 2.4" TFT LCD Shield

front back

Import program
Nucleo_LCD_mcufriend_test - main.cpp

00001 #include "mbed.h"
00002 #include "ili9328.h"
00003 
00004 // prepare the data bus for writing commands and pixel data
00005 BusOut dataBus( D8, D9, D2, D3, D4, D5, D6, D7 ); // 8 pins
00006 // create the lcd instance
00007 ILI9328_LCD lcd( A3,  A4, A2,A1, &dataBus, NC, A0); // control pins and data bus
00008 //ILI9328_LCD(  CS,  RESET,  RS, WR, BusOut* DATA_PORT, PinName BL = NC,  RD );
00009    
00010 int main()
00011 {
00012     int ii,height,width;
00013     
00014     height = lcd.GetHeight();
00015     width =  lcd.GetWidth();
00016     // initialize display - place it in standard portrait mode and set background to black and
00017     //                      foreground to white color.
00018     lcd.Initialize();
00019 
00020     // print something on the screen
00021     lcd.Print( "Hello, World!", CENTER, 50); // align text to center horizontally and use starndard colors
00022  
00023     wait(2);
00024    
00025     lcd.ClearScreen();
00026  
00027     for(ii=0;ii<width;ii++)
00028     {
00029         lcd.DrawLine(0, 0, height, ii,COLOR_GREEN);
00030         ii = ii+10;    
00031     }
00032     wait(2);
00033  
00034     lcd.DrawCircle(height/4, width/4, 20, COLOR_GREEN);
00035     wait(2);
00036  
00037     lcd.FillCircle(height/2, width/2, 50, COLOR_GREEN);
00038     wait(2);
00039  
00040     lcd.FillTriangle(height/4, width/4,(height/4)+20, (width/4)+40,(height/4)-20, (width/4)+40, COLOR_RED);
00041  
00042     while ( 1 ) { }
00043 }

HW information about the mcufriend LCD Shield

Diff: st7735.cpp

Revision:
30:ede1a0a32e04
Parent:
29:060b167a46ba
--- a/st7735.cpp	Mon Jun 30 17:29:42 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,289 +0,0 @@
-/*
- * 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 "st7735.h"
-#include "helpers.h"
-
-ST7735_LCD::ST7735_LCD( PinName CS, PinName RESET, PinName RS, PinName SCL, PinName SDA, PinName BL, backlight_t blType, float defaultBackLightLevel )
-    : LCD( 128, 160, CS, RS, RESET, BL, blType, defaultBackLightLevel ), _lcd_pin_scl( SCL ), _lcd_pin_sda( SDA )
-{
-}
-
-void ST7735_LCD::Initialize( orientation_t orientation, colordepth_t colors )
-{
-    _orientation = orientation;
-    _colorDepth = colors;
-    
-    wait_ms( 100 );
-    _lcd_pin_reset = HIGH;
-    wait_ms( 5 );
-    _lcd_pin_reset = LOW;
-    wait_ms( 15 );
-    _lcd_pin_reset = HIGH;
-    _lcd_pin_cs = HIGH;
-    _lcd_pin_rs = HIGH;
-    _lcd_pin_scl = HIGH;
-    _lcd_pin_sda = HIGH;
-    if ( _lcd_pin_bl != 0 )
-        *_lcd_pin_bl = HIGH;
-    else if ( _bl_pwm != 0 )
-        *_bl_pwm = _bl_pwm_default;
-    wait_ms( 55 );
-    
-    Activate();
-    WriteCmd( 0x01 ); // SW reset
-    wait_ms( 120 );
-    
-    WriteCmd( 0x11 ); // sleep out
-    wait_ms( 120 );
-    
-    WriteCmd( 0xB1 ); // frame control 1
-    WriteByteData( 0x01 );
-    WriteByteData( 0x2C );
-    WriteByteData( 0x2D );
-    
-    WriteCmd( 0xB2 ); // frame control 2
-    WriteByteData( 0x01 );
-    WriteByteData( 0x2C );
-    WriteByteData( 0x2D );
-    
-    WriteCmd( 0xB3 ); // frame control 3
-    WriteByteData( 0x01 );
-    WriteByteData( 0x2C );
-    WriteByteData( 0x2D );
-    WriteByteData( 0x01 );
-    WriteByteData( 0x2C );
-    WriteByteData( 0x2D );
-    
-    WriteCmd( 0xB4 ); // column inversion
-    //WriteByteData( 0x07 );
-    WriteByteData( 0x00 );
-
-    // ST7735R Power Sequence
-    WriteCmd( 0xC0 ); // power control 1
-    WriteByteData( 0xA2 );
-    WriteByteData( 0x02 );
-    WriteByteData( 0x84 );
-    
-    WriteCmd( 0xC1 ); // power control 2
-    WriteByteData( 0xC5 );
-    
-    WriteCmd( 0xC2 ); // power control 3
-    WriteByteData( 0x0A );
-    WriteByteData( 0x00 );
-    
-    WriteCmd( 0xC3 ); // power control 4
-    WriteByteData( 0x8A );
-    WriteByteData( 0x2A );
-    
-    WriteCmd( 0xC4 ); // power control 5
-    WriteByteData( 0x8A );
-    WriteByteData( 0xEE );
-    
-    WriteCmd( 0xC5 ); // voltage control 1
-    WriteByteData( 0x0E );
-
-    // ST7735R Gamma Sequence
-    WriteCmd( 0xE0 ); // gamma positive
-    WriteByteData( 0x0F );
-    WriteByteData( 0x1A );
-    WriteByteData( 0x0F );
-    WriteByteData( 0x18 );
-    WriteByteData( 0x2F );
-    WriteByteData( 0x28 );
-    WriteByteData( 0x20 );
-    WriteByteData( 0x22 );
-    WriteByteData( 0x1F );
-    WriteByteData( 0x1B );
-    WriteByteData( 0x23 );
-    WriteByteData( 0x37 );
-    WriteByteData( 0x00 );
-    WriteByteData( 0x07 );
-    WriteByteData( 0x02 );
-    WriteByteData( 0x10 );
-    
-    WriteCmd( 0xE1 ); // gamma negative
-    WriteByteData( 0x0F );
-    WriteByteData( 0x1B );
-    WriteByteData( 0x0F );
-    WriteByteData( 0x17 );
-    WriteByteData( 0x33 );
-    WriteByteData( 0x2C );
-    WriteByteData( 0x29 );
-    WriteByteData( 0x2E );
-    WriteByteData( 0x30 );
-    WriteByteData( 0x30 );
-    WriteByteData( 0x39 );
-    WriteByteData( 0x3F );
-    WriteByteData( 0x00 );
-    WriteByteData( 0x07 );
-    WriteByteData( 0x03 );
-    WriteByteData( 0x10 );
-
-    WriteCmd( 0x2A ); // set column address
-    WriteByteData( 0x00 );
-    WriteByteData( 0x00 );
-    WriteByteData( 0x00 );
-    WriteByteData( 0x7F );
-    
-    WriteCmd( 0x2B ); // set row address
-    WriteByteData( 0x00 );
-    WriteByteData( 0x00 );
-    WriteByteData( 0x00 );
-    WriteByteData( 0x9F );
-
-    WriteCmd( 0xF0 ); // enable extensions command
-    WriteByteData( 0x01 );
-    
-    WriteCmd( 0xF6 ); // disable ram power save mode
-    WriteByteData( 0x00 );
-
-    WriteCmd( 0x3A ); // interface pixel format (color mode): 0x05 => RGB16, 0x06 => RGB18
-    WriteByteData( _colorDepth == RGB16 ? 0x05 : 0x06 );
-
-    WriteCmd( 0x36 ); //MX, MY, RGB mode
-    switch ( _orientation )
-    {
-        case LANDSCAPE: WriteByteData( 0x6C ); break;
-        case PORTRAIT_REV: WriteByteData( 0xDC ); break;
-        case LANDSCAPE_REV: WriteByteData( 0xB8 ); break;
-        case PORTRAIT:
-        default: WriteByteData( 0x08 ); break;
-    }
-    
-    WriteCmd( 0x29 ); // display on
-
-    Deactivate();
-}
-
-void ST7735_LCD::Sleep( void )
-{
-    Activate();
-    WriteCmd( 0x28 );
-    wait_ms( 10 );
-    WriteCmd( 0x10 );
-    wait_ms( 125 );
-    LCD::Sleep();
-    Deactivate();
-}
-
-void ST7735_LCD::WakeUp( void )
-{
-    Activate();
-    WriteCmd( 0x29 );
-    wait_ms( 10 );
-    WriteCmd( 0x11 );
-    wait_ms( 125 );
-    LCD::WakeUp();
-    Deactivate();
-}
-
-void ST7735_LCD::WriteCmd( unsigned short cmd )
-{
-    _lcd_pin_rs = LOW;
-    serializeByte( cmd & 0xFF );
-}
-
-void ST7735_LCD::WriteData( unsigned short data )
-{
-    _lcd_pin_rs = HIGH;
-    serializeByte( ( data >> 8 ) & 0xFF );
-    serializeByte( data & 0xFF );
-}
-
-void ST7735_LCD::WriteByteData( unsigned char data )
-{
-    _lcd_pin_rs = HIGH;
-    serializeByte( data );
-}
-
-void ST7735_LCD::SetXY( unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2 )
-{
-    WriteCmdData( 0x2a, x1 );
-    WriteData( x2 );
-    WriteCmdData( 0x2b, y1 );
-    WriteData( y2 );
-    WriteCmd( 0x2c );
-}
-
-void ST7735_LCD::SetPixelColor( unsigned int color, colordepth_t mode )
-{
-    unsigned char r = 0, g = 0, b = 0;
-    unsigned short clr;
-    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;
-        }
-        WriteByteData( r );
-        WriteByteData( g );
-        WriteByteData( b );
-    }
-}
-
-void ST7735_LCD::serializeByte( unsigned char data )
-{
-    for ( int i = 0; i < 8; i++ )
-    {
-        if ( data & 0x80 ) _lcd_pin_sda = HIGH;
-        else _lcd_pin_sda = LOW;
-        pulseLow( _lcd_pin_scl );
-        data = data << 1;
-    }
-}