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:
22:4c169297f374
Parent:
20:4bdca8d8dadc
--- a/st7735.cpp	Sat Jan 26 02:55:46 2013 +0000
+++ b/st7735.cpp	Sat Jan 26 04:36:46 2013 +0000
@@ -22,11 +22,9 @@
 #include "st7735.h"
 #include "helpers.h"
 
-ST7735_LCD::ST7735_LCD( PinName CS, PinName RESET, PinName RS, PinName SCL, PinName SDA, PinName BL )
-    : LCD( 128, 160, CS, RS, RESET ), _lcd_pin_scl( SCL ), _lcd_pin_sda( SDA )
+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 )
 {
-    if ( BL != NC ) _lcd_pin_bl = new DigitalOut( BL );
-    else _lcd_pin_bl = 0;
 }
 
 void ST7735_LCD::Initialize( orientation_t orientation, colordepth_t colors )
@@ -46,6 +44,8 @@
     _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();
@@ -181,8 +181,7 @@
     wait_ms( 10 );
     WriteCmd( 0x10 );
     wait_ms( 125 );
-    if ( _lcd_pin_bl != 0 )
-        *_lcd_pin_bl = LOW;
+    LCD::Sleep();
     Deactivate();
 }
 
@@ -193,8 +192,7 @@
     wait_ms( 10 );
     WriteCmd( 0x11 );
     wait_ms( 125 );
-    if ( _lcd_pin_bl != 0 )
-        *_lcd_pin_bl = HIGH;
+    LCD::WakeUp();
     Deactivate();
 }