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:
14:8efbe7361dae
Parent:
12:d0978272a340
Child:
15:af3cd35886fb
--- a/st7735.cpp	Tue Dec 11 20:02:48 2012 +0000
+++ b/st7735.cpp	Tue Dec 11 20:52:22 2012 +0000
@@ -59,10 +59,12 @@
     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 );
@@ -72,21 +74,26 @@
     WriteByteData( 0x2D );
     
     WriteCmd( 0xB4 ); // column inversion
-    WriteByteData( 0x07 );
+    //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 );
@@ -94,9 +101,6 @@
     WriteCmd( 0xC5 ); // voltage control 1
     WriteByteData( 0x0E );
 
-    WriteCmd( 0x36 ); //MX, MY, RGB mode
-    WriteByteData( 0xC8 );
-
     // ST7735R Gamma Sequence
     WriteCmd( 0xE0 ); // gamma positive
     WriteByteData( 0x0F );
@@ -115,6 +119,7 @@
     WriteByteData( 0x07 );
     WriteByteData( 0x02 );
     WriteByteData( 0x10 );
+    
     WriteCmd( 0xE1 ); // gamma negative
     WriteByteData( 0x0F );
     WriteByteData( 0x1B );
@@ -138,6 +143,7 @@
     WriteByteData( 0x00 );
     WriteByteData( 0x00 );
     WriteByteData( 0x7F );
+    
     WriteCmd( 0x2B ); // set row address
     WriteByteData( 0x00 );
     WriteByteData( 0x00 );
@@ -146,11 +152,23 @@
 
     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( 0xB8 ); break;
+        case PORTRAIT_REV: WriteByteData( 0xDC ); break;
+        case LANDSCAPE_REV: WriteByteData( 0x6C ); break;
+        case PORTRAIT:
+        default: WriteByteData( 0x08 ); break;
+    }
+    
     WriteCmd( 0x29 ); // display on
 
     Deactivate();
@@ -201,15 +219,6 @@
 
 void ST7735_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( 0x2a, x1 );
     WriteData( x2 );
     WriteCmdData( 0x2b, y1 );