Ian Weston / Mbed 2 deprecated ILI9340_Driver

Demo project to demonstrate that ILI9340 display driver and graphics library. very simple but a good starting point for any project using such a display. Please use this to thoroughly enjoy yourself and make your projects cool!

Dependencies:   ILI9340_Driver_Lib mbed

About the Driver:

This driver will drive any display that uses an ILI9340 display controller in SPI mode - such as the adafruits 2.2" 240 x 320 display found here: http://www.adafruit.com/products/1480

All this code has been ported from other peoples hard work - Thanks to All !

main.cpp@1:0615e3c659c0, 2014-05-26 (annotated)

Committer:
dextorslabs
Date:
Mon May 26 18:32:43 2014 +0000
Revision:
1:0615e3c659c0
Parent:
0:9c462c65176a 
Slightly nicer demo code to accompany the driver / library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dextorslabs 0:9c462c65176a 1 /***************************************************************
dextorslabs 0:9c462c65176a 2 ILI9340_Driver v1.0 26.05.14 Ian Weston
dextorslabs 0:9c462c65176a 3
dextorslabs 0:9c462c65176a 4 Driver and integrated graphics library for displays that use the
dextorslabs 0:9c462c65176a 5 ILI9340 controller in SPI mode.
dextorslabs 0:9c462c65176a 6
dextorslabs 0:9c462c65176a 7 The code was prted from several sources, the driver section
dextorslabs 0:9c462c65176a 8 was completely ported from the Adafruits Arduino source code, and
dextorslabs 0:9c462c65176a 9 the graphics functions were ported from the Adafruits GFX library
dextorslabs 0:9c462c65176a 10 and some elements were ported from code by Elmicros seeduio port.
dextorslabs 0:9c462c65176a 11
dextorslabs 0:9c462c65176a 12 Future revisions will include more advanced graphics functions.
dextorslabs 0:9c462c65176a 13
dextorslabs 0:9c462c65176a 14 Rough and ready Demo code to for showing the driver and some
dextorslabs 0:9c462c65176a 15 functions in action.
dextorslabs 0:9c462c65176a 16
dextorslabs 0:9c462c65176a 17 ***************************************************************/
dextorslabs 0:9c462c65176a 18
dextorslabs 0:9c462c65176a 19
dextorslabs 0:9c462c65176a 20 #include "mbed.h"
dextorslabs 0:9c462c65176a 21 #include "ILI9340_Driver.h"
dextorslabs 0:9c462c65176a 22
dextorslabs 0:9c462c65176a 23
dextorslabs 0:9c462c65176a 24 int main() {
dextorslabs 0:9c462c65176a 25
dextorslabs 0:9c462c65176a 26 // create the display object
dextorslabs 0:9c462c65176a 27 ILI9340_Display tft = ILI9340_Display(p5, p6, p7, p24, p25, p26);
dextorslabs 0:9c462c65176a 28
dextorslabs 0:9c462c65176a 29 // initialise the display
dextorslabs 0:9c462c65176a 30 tft.DispInit();
dextorslabs 0:9c462c65176a 31
dextorslabs 0:9c462c65176a 32 // clears the screen to remove all noise data
dextorslabs 0:9c462c65176a 33 tft.FillScreen(ILI9340_WHITE);
dextorslabs 0:9c462c65176a 34
dextorslabs 0:9c462c65176a 35
dextorslabs 0:9c462c65176a 36
dextorslabs 0:9c462c65176a 37 // set up variables for graphics functions
dextorslabs 1:0615e3c659c0 38 uint16_t c1, c2, c3, c4, c5, c6;
dextorslabs 0:9c462c65176a 39 uint8_t r = 0, g = 0, b = 0;
dextorslabs 0:9c462c65176a 40 char elapsed[] = "1111";
dextorslabs 0:9c462c65176a 41 int counter = 0;
dextorslabs 1:0615e3c659c0 42
dextorslabs 1:0615e3c659c0 43 // variables for the 'waiting..' squares
dextorslabs 1:0615e3c659c0 44 int red[] = {0,30,60,90,120};
dextorslabs 1:0615e3c659c0 45 int green[] = {0,30,60,90,120};
dextorslabs 1:0615e3c659c0 46 int blue[] = {0,30,60,90,120};
dextorslabs 0:9c462c65176a 47
dextorslabs 0:9c462c65176a 48
dextorslabs 0:9c462c65176a 49 while(true) {
dextorslabs 1:0615e3c659c0 50 // draws a black window
dextorslabs 1:0615e3c659c0 51 tft.DrawRect(20, 20, 200, 280, ILI9340_BLACK);
dextorslabs 1:0615e3c659c0 52
dextorslabs 1:0615e3c659c0 53 // Small amount of text to the display.
dextorslabs 1:0615e3c659c0 54 tft.DrawString("Hello ILI9340 Lib!", 50, 120, 1, ILI9340_BLACK);
dextorslabs 1:0615e3c659c0 55 tft.DrawString("Frame Count:", 70, 135, 1, ILI9340_BLACK);
dextorslabs 1:0615e3c659c0 56 tft.DrawString("Go Create!", 45, 210, 2, ILI9340_BLUE);
dextorslabs 1:0615e3c659c0 57
dextorslabs 0:9c462c65176a 58 // convert the RGB values into values that can be writen to the screen
dextorslabs 0:9c462c65176a 59 c1 = tft.Colour565(r, g, b);
dextorslabs 1:0615e3c659c0 60 c2 = tft.Colour565(red[0], green[0], blue[0]);
dextorslabs 1:0615e3c659c0 61 c3 = tft.Colour565(red[1], green[1], blue[1]);
dextorslabs 1:0615e3c659c0 62 c4 = tft.Colour565(red[2], green[2], blue[2]);
dextorslabs 1:0615e3c659c0 63 c5 = tft.Colour565(red[3], green[3], blue[3]);
dextorslabs 1:0615e3c659c0 64 c6 = tft.Colour565(red[4], green[4], blue[4]);
dextorslabs 0:9c462c65176a 65
dextorslabs 1:0615e3c659c0 66 // Print a 'waiting..' animation to the screen.
dextorslabs 1:0615e3c659c0 67 tft.FillRect( 30, 60, 20, 20, c6);
dextorslabs 1:0615e3c659c0 68 tft.FillRect( 70, 60, 20, 20, c5);
dextorslabs 1:0615e3c659c0 69 tft.FillRect( 110, 60, 20, 20, c4);
dextorslabs 1:0615e3c659c0 70 tft.FillRect( 150, 60, 20, 20, c3);
dextorslabs 1:0615e3c659c0 71 tft.FillRect( 190, 60, 20, 20, c2);
dextorslabs 0:9c462c65176a 72
dextorslabs 1:0615e3c659c0 73 // change the RGB vlaues for circle effect
dextorslabs 1:0615e3c659c0 74 r += 4; g += 6; b += 8;
dextorslabs 1:0615e3c659c0 75
dextorslabs 1:0615e3c659c0 76 // change RGB values for the 'waiting' animation effect
dextorslabs 1:0615e3c659c0 77 for (int i = 0; i < 5; i++) {
dextorslabs 1:0615e3c659c0 78 red[i] += 5;
dextorslabs 1:0615e3c659c0 79 green[i] += 5;
dextorslabs 1:0615e3c659c0 80 blue[i] += 5;
dextorslabs 1:0615e3c659c0 81 }
dextorslabs 1:0615e3c659c0 82
dextorslabs 0:9c462c65176a 83
dextorslabs 0:9c462c65176a 84 //Write the frame count to screen, first overwriting the previos value in the background colour
dextorslabs 0:9c462c65176a 85 tft.IntToChars(elapsed, counter, 4, 10, 70, 160, 3, ILI9340_WHITE);
dextorslabs 0:9c462c65176a 86 if (counter++ > 9999) {counter = 0;}
dextorslabs 0:9c462c65176a 87 tft.IntToChars(elapsed, counter, 4, 10, 70, 160, 3, ILI9340_RED);
dextorslabs 0:9c462c65176a 88
dextorslabs 0:9c462c65176a 89 // Make a mess of the screen by drawing random lines and, a ripple of circles.
dextorslabs 0:9c462c65176a 90 tft.DrawCircle(120, 265, r, c1);
dextorslabs 0:9c462c65176a 91
dextorslabs 0:9c462c65176a 92 // Do the waiting thang...
dextorslabs 1:0615e3c659c0 93 wait(0.025);
dextorslabs 0:9c462c65176a 94
dextorslabs 0:9c462c65176a 95 }
dextorslabs 0:9c462c65176a 96
dextorslabs 0:9c462c65176a 97 }
dextorslabs 0:9c462c65176a 98