Demo.cpp

00001 /***************************************************************
00002     ILI9340_Driver  v1.1    26.05.14    Ian Weston
00003     
00004 Demo project to demonstrate the ILI9340 display driver and graphics
00005 library in action. very simple, good base for any project.    
00006 
00007 About the Library:
00008 
00009 Driver and integrated graphics library for displays that use the 
00010 ILI9340 controller in SPI mode.
00011 
00012 The code was prted from several sources, the driver section
00013 was completely ported from the Adafruits Arduino source code, and
00014 the graphics functions were ported from the Adafruits GFX library
00015 and some elements were ported from code by Elmicros seeduio port.
00016 
00017 Future revisions will include more advanced graphics functions.
00018 
00019 Rough and ready Demo code to for showing the driver and some 
00020 functions in action.
00021 
00022 ***************************************************************/
00023 
00024 
00025 #include "mbed.h"
00026 #include "ILI9340_Driver.h"
00027 
00028 
00029 int main() {
00030 
00031     // create the display object
00032     ILI9340_Display tft = ILI9340_Display(p5, p6, p7, p24, p25, p26);
00033 
00034     // initialise the display
00035     tft.DispInit();
00036     
00037     // clears the screen to remove all noise data
00038     tft.FillScreen(ILI9340_WHITE);
00039         
00040 
00041 
00042     // set up variables for graphics functions
00043     uint16_t c1, c2, c3, c4, c5, c6;
00044     uint8_t r = 0, g = 0, b = 0;
00045     char elapsed[] = "1111";
00046     int counter = 0;
00047 
00048     // variables for the 'waiting..' squares
00049     int red[] = {0,30,60,90,120};
00050     int green[] = {0,30,60,90,120};
00051     int blue[] = {0,30,60,90,120};
00052     
00053     
00054     while(true) {    
00055         // draws a black window
00056         tft.DrawRect(20, 20, 200, 280, ILI9340_BLACK);
00057     
00058         // Small amount of text to the display.
00059         tft.DrawString("Hello ILI9340 Lib!", 50, 120, 1, ILI9340_BLACK);
00060         tft.DrawString("Frame Count:", 70, 135, 1, ILI9340_BLACK);
00061         tft.DrawString("Go Create!", 45, 210, 2, ILI9340_BLUE);
00062     
00063         // convert the RGB values into values that can be writen to the screen
00064         c1 = tft.Colour565(r, g, b);
00065         c2 = tft.Colour565(red[0], green[0], blue[0]);
00066         c3 = tft.Colour565(red[1], green[1], blue[1]);
00067         c4 = tft.Colour565(red[2], green[2], blue[2]);
00068         c5 = tft.Colour565(red[3], green[3], blue[3]);
00069         c6 = tft.Colour565(red[4], green[4], blue[4]);
00070         
00071         // Print a 'waiting..' animation to the screen.
00072         tft.FillRect( 30, 60, 20, 20, c6);
00073         tft.FillRect( 70, 60, 20, 20, c5);
00074         tft.FillRect( 110, 60, 20, 20, c4);
00075         tft.FillRect( 150, 60, 20, 20, c3);
00076         tft.FillRect( 190, 60, 20, 20, c2);
00077         
00078         // change the RGB vlaues for circle effect
00079         r += 4; g += 6; b += 8; 
00080         
00081         // change RGB values for the 'waiting' animation effect
00082         for (int i = 0; i < 5; i++) {
00083             red[i]   += 5;
00084             green[i] += 5;
00085             blue[i]  += 5;
00086             }
00087         
00088                
00089         //Write the frame count to screen, first overwriting the previos value in the background colour
00090         tft.IntToChars(elapsed, counter, 4, 10, 70, 160, 3, ILI9340_WHITE);
00091         if (counter++ > 9999) {counter = 0;}
00092         tft.IntToChars(elapsed, counter, 4, 10, 70, 160, 3, ILI9340_RED);
00093         
00094         // Draw the circle ripples to the screen
00095         tft.DrawCircle(120, 265, r, c1);
00096         
00097         
00098         // Do the waiting thang...
00099         wait(0.025);
00100 
00101     }
00102 
00103 }
00104