Frank Vannieuwkerke / Mbed 2 deprecated LPC1768_Mini-DK

LPC1768 Mini-DK board with 2.8" SPI TFT and SPI touch

Dependencies:   Mini-DK mbed SDFileSystem

WARNING: filetoflash (SD to CPU flash)

The SPI_TFT library called from Mini-DK.lib contains an option to copy an image from the SD card to the CPU flash memory. This allows you to use an image as background without speed loss when writing other text and graphics.

By default, this option is enabled.

It can be disabled by uncommenting the #define mentioned below in Mini_DK.h: 

#define NO_FLASH_BUFFER

Since the flash memory has limited write endurance, DO NOT use this feature when you intend to read multiple images from the SD card (eg: when used as a photo frame).

main.cpp@7:ffdd4e75b366, 2013-01-04 (annotated)

Committer:
frankvnk
Date:
Fri Jan 04 09:52:16 2013 +0000
Revision:
7:ffdd4e75b366
Parent:
6:b547fb6c1095 
Code cleanup / comments added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
frankvnk 2:d0acbd263ec7 1 #include "stdio.h"
frankvnk 2:d0acbd263ec7 2 #include "mbed.h"
frankvnk 2:d0acbd263ec7 3 #include "Mini_DK.h"
frankvnk 2:d0acbd263ec7 4 //#include "string"
frankvnk 2:d0acbd263ec7 5
frankvnk 2:d0acbd263ec7 6 extern unsigned char p1[]; // the mbed logo
frankvnk 2:d0acbd263ec7 7 #define RGB565CONVERT(red, green, blue) (uint16_t)( (( red >> 3 ) << 11 ) | (( green >> 2 ) << 5 ) | ( blue >> 3 ))
frankvnk 2:d0acbd263ec7 8
frankvnk 2:d0acbd263ec7 9 DigitalOut led(DK_LED1);
frankvnk 2:d0acbd263ec7 10 // TFT -> mosi, miso, sclk, cs
frankvnk 2:d0acbd263ec7 11 SPI_TFT TFT(LCD_SDI, LCD_SDO, LCD_SCK, LCD_CS,"TFT");
frankvnk 3:fb4d62b5ffb3 12 // ADS7843 -> mosi, miso, sclk, cs, irq, SPI_TFT
frankvnk 3:fb4d62b5ffb3 13 TouchScreenADS7843 TP(TP_SDI ,TP_SDO ,TP_SCK ,TP_CS ,TP_IRQ, &TFT);
frankvnk 2:d0acbd263ec7 14
frankvnk 2:d0acbd263ec7 15 int main()
frankvnk 2:d0acbd263ec7 16 {
frankvnk 2:d0acbd263ec7 17 unsigned short LCD_id;
frankvnk 2:d0acbd263ec7 18 TFT.claim(stdout); // send stdout to the TFT display
frankvnk 2:d0acbd263ec7 19
frankvnk 2:d0acbd263ec7 20 TFT.background(Black); // set background to black
frankvnk 2:d0acbd263ec7 21 TFT.foreground(White); // set chars to white
frankvnk 2:d0acbd263ec7 22
frankvnk 2:d0acbd263ec7 23
frankvnk 2:d0acbd263ec7 24 // LCD demo
frankvnk 2:d0acbd263ec7 25 // first show the 4 directions
frankvnk 2:d0acbd263ec7 26 TFT.cls();
frankvnk 2:d0acbd263ec7 27 TFT.set_font((unsigned char*) Arial12x12);
frankvnk 2:d0acbd263ec7 28 TFT.set_orientation(0);
frankvnk 2:d0acbd263ec7 29 TFT.locate(0,0);
Sissors 6:b547fb6c1095 30 TFT.printf(" Hello Mbed 0");
frankvnk 2:d0acbd263ec7 31 TFT.set_orientation(1);
frankvnk 2:d0acbd263ec7 32 TFT.locate(0,0);
Sissors 6:b547fb6c1095 33 TFT.printf(" Hello Mbed 1");
frankvnk 2:d0acbd263ec7 34 TFT.set_orientation(2);
frankvnk 2:d0acbd263ec7 35 TFT.locate(0,0);
Sissors 6:b547fb6c1095 36 TFT.printf(" Hello Mbed 2");
frankvnk 2:d0acbd263ec7 37 TFT.set_orientation(3);
frankvnk 2:d0acbd263ec7 38 TFT.locate(0,0);
Sissors 6:b547fb6c1095 39 TFT.printf(" Hello Mbed 3");
frankvnk 2:d0acbd263ec7 40 TFT.set_orientation(1);
frankvnk 2:d0acbd263ec7 41 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 42 TFT.locate(50,100);
frankvnk 2:d0acbd263ec7 43 TFT.printf("TFT orientation");
frankvnk 2:d0acbd263ec7 44
frankvnk 2:d0acbd263ec7 45 wait(2);
frankvnk 2:d0acbd263ec7 46
frankvnk 2:d0acbd263ec7 47 // draw some graphics
frankvnk 2:d0acbd263ec7 48 TFT.cls();
frankvnk 2:d0acbd263ec7 49 TFT.set_orientation(1);
frankvnk 2:d0acbd263ec7 50 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 51 TFT.locate(120,115);
frankvnk 2:d0acbd263ec7 52 TFT.printf("Graphic");
frankvnk 2:d0acbd263ec7 53 TFT.line(0,0,100,200,Green);
frankvnk 2:d0acbd263ec7 54 TFT.rect(100,50,50,50,Red);
frankvnk 2:d0acbd263ec7 55 TFT.fillrect(180,25,40,45,Blue);
frankvnk 2:d0acbd263ec7 56 TFT.draw_ellipse(80, 150, 33, 33, White);
frankvnk 2:d0acbd263ec7 57 TFT.fill_ellipse(80, 50, 33, 33, White);
frankvnk 2:d0acbd263ec7 58 wait(2);
frankvnk 2:d0acbd263ec7 59 TFT.cls();
frankvnk 2:d0acbd263ec7 60 TFT.draw_ellipse(160, 120, 100, 50, Yellow);
frankvnk 2:d0acbd263ec7 61 TFT.draw_ellipse(160, 120, 100, 100, Blue);
frankvnk 2:d0acbd263ec7 62 TFT.fill_ellipse(160, 120, 80, 40, Green);
frankvnk 2:d0acbd263ec7 63 wait(2);
frankvnk 2:d0acbd263ec7 64
frankvnk 2:d0acbd263ec7 65 // bigger text
frankvnk 2:d0acbd263ec7 66 TFT.foreground(White);
frankvnk 2:d0acbd263ec7 67 TFT.background(Blue);
frankvnk 2:d0acbd263ec7 68 TFT.cls();
frankvnk 2:d0acbd263ec7 69 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 70 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 71 TFT.printf("Different Fonts :");
frankvnk 2:d0acbd263ec7 72
frankvnk 2:d0acbd263ec7 73 TFT.set_font((unsigned char*) Neu42x35);
frankvnk 2:d0acbd263ec7 74 TFT.locate(0,50);
frankvnk 2:d0acbd263ec7 75 TFT.printf("Hello");
frankvnk 2:d0acbd263ec7 76 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 77 TFT.locate(50,100);
frankvnk 2:d0acbd263ec7 78 TFT.printf("Hello");
frankvnk 2:d0acbd263ec7 79 TFT.set_font((unsigned char*) Arial12x12);
frankvnk 2:d0acbd263ec7 80 TFT.locate(55,150);
frankvnk 2:d0acbd263ec7 81 TFT.printf("Hello");
frankvnk 2:d0acbd263ec7 82
frankvnk 2:d0acbd263ec7 83 TFT.set_orientation(2);
frankvnk 2:d0acbd263ec7 84 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 85 TFT.locate(10,10);
frankvnk 2:d0acbd263ec7 86 TFT.printf("Hi mbed");
frankvnk 2:d0acbd263ec7 87 wait(2);
frankvnk 2:d0acbd263ec7 88
frankvnk 2:d0acbd263ec7 89 // mbed logo
frankvnk 2:d0acbd263ec7 90 TFT.set_orientation(1);
frankvnk 2:d0acbd263ec7 91 TFT.background(Black);
frankvnk 2:d0acbd263ec7 92 TFT.cls();
frankvnk 2:d0acbd263ec7 93 TFT.Bitmap(90,90,172,55,p1);
frankvnk 2:d0acbd263ec7 94
frankvnk 2:d0acbd263ec7 95 // Read LCD ID
frankvnk 2:d0acbd263ec7 96 TFT.set_orientation(0);
frankvnk 2:d0acbd263ec7 97 LCD_id = TFT.Read_ID();
frankvnk 2:d0acbd263ec7 98 TFT.locate(10,10);
frankvnk 2:d0acbd263ec7 99 TFT.printf("LCD: ILI%04X", LCD_id);
frankvnk 2:d0acbd263ec7 100 wait(2);
frankvnk 2:d0acbd263ec7 101
frankvnk 2:d0acbd263ec7 102 // RGB color wheel demo (cycle through all colors)
frankvnk 2:d0acbd263ec7 103 TFT.cls();
frankvnk 2:d0acbd263ec7 104 TFT.foreground(Yellow); // set chars to yellow
frankvnk 2:d0acbd263ec7 105 TFT.set_font((unsigned char*) Arial12x12);
frankvnk 2:d0acbd263ec7 106 TFT.locate(10,10);
frankvnk 2:d0acbd263ec7 107 TFT.printf("RGB color wheel (2x)");
frankvnk 2:d0acbd263ec7 108
Sissors 6:b547fb6c1095 109 uint8_t r = 255, g = 0, b = 0, step = 1, i;
frankvnk 2:d0acbd263ec7 110 for (i=0;i<2;i++)
frankvnk 2:d0acbd263ec7 111 {
frankvnk 2:d0acbd263ec7 112 for(;g<255;g+=step) {TFT.fillrect(70,110,100,100,RGB565CONVERT(r, g, b));} // Cycle from FF0000 to FFFF00 : red to yellow
frankvnk 2:d0acbd263ec7 113 for(;r>0;r-=step) {TFT.fillrect(70,110,100,100,RGB565CONVERT(r, g, b));} // Cycle from FFFF00 to 00FF00 : yellow to green
frankvnk 2:d0acbd263ec7 114 for(;b<255;b+=step) {TFT.fillrect(70,110,100,100,RGB565CONVERT(r, g, b));} // Cycle from 00FF00 to 00FFFF : green to cyan
frankvnk 2:d0acbd263ec7 115 for(;g>0;g-=step) {TFT.fillrect(70,110,100,100,RGB565CONVERT(r, g, b));} // Cycle from 00FFFF to 0000FF : cyan to blue
frankvnk 2:d0acbd263ec7 116 for(;r<255;r+=step) {TFT.fillrect(70,110,100,100,RGB565CONVERT(r, g, b));} // Cycle from 0000FF to FF00FF : blue to purple
frankvnk 2:d0acbd263ec7 117 for(;b>0;b-=step) {TFT.fillrect(70,110,100,100,RGB565CONVERT(r, g, b));} // Cycle from FF00FF to FF0000 : purple to red
frankvnk 2:d0acbd263ec7 118 }
frankvnk 2:d0acbd263ec7 119 wait(2);
frankvnk 2:d0acbd263ec7 120
frankvnk 2:d0acbd263ec7 121
frankvnk 2:d0acbd263ec7 122 // Touchpanel demo
frankvnk 2:d0acbd263ec7 123 TP.TouchPanel_Calibrate();
frankvnk 2:d0acbd263ec7 124 TFT.set_font((unsigned char*) Arial12x12);
frankvnk 2:d0acbd263ec7 125 TFT.set_orientation(0);
frankvnk 2:d0acbd263ec7 126 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 127 TFT.printf(" X:");
frankvnk 2:d0acbd263ec7 128 TFT.locate(70,0);
frankvnk 2:d0acbd263ec7 129 TFT.printf(" Y:");
frankvnk 2:d0acbd263ec7 130 while (1)
frankvnk 2:d0acbd263ec7 131 {
frankvnk 2:d0acbd263ec7 132 if (!TP._tp_irq)
frankvnk 2:d0acbd263ec7 133 {
frankvnk 4:067633a7dfa5 134 if (TP.Read_Ads7846())
frankvnk 2:d0acbd263ec7 135 {
frankvnk 2:d0acbd263ec7 136 TP.getDisplayPoint() ;
frankvnk 3:fb4d62b5ffb3 137 TP.TP_DrawPoint(TP.display.x,TP.display.y, Blue);
frankvnk 2:d0acbd263ec7 138 TFT.locate(25,0);
frankvnk 7:ffdd4e75b366 139 TFT.printf("%03d",TP.display.x);
frankvnk 2:d0acbd263ec7 140 TFT.locate(95,0);
frankvnk 7:ffdd4e75b366 141 TFT.printf("%03d",TP.display.y);
frankvnk 2:d0acbd263ec7 142 // Touchscreen area is larger than LCD area.
frankvnk 2:d0acbd263ec7 143 // We use the bottom area outside the LCD area to clear the screen (y value > 320).
frankvnk 2:d0acbd263ec7 144 if (TP.display.y > 320)
frankvnk 2:d0acbd263ec7 145 {
frankvnk 2:d0acbd263ec7 146 TFT.cls();
frankvnk 2:d0acbd263ec7 147 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 148 TFT.printf(" X:");
frankvnk 2:d0acbd263ec7 149 TFT.locate(70,0);
frankvnk 2:d0acbd263ec7 150 TFT.printf(" Y:");
frankvnk 2:d0acbd263ec7 151 }
frankvnk 2:d0acbd263ec7 152 }
frankvnk 2:d0acbd263ec7 153 }
frankvnk 2:d0acbd263ec7 154 }
frankvnk 2:d0acbd263ec7 155 }