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@3:fb4d62b5ffb3, 2013-01-03 (annotated)

Committer:
frankvnk
Date:
Thu Jan 03 16:16:24 2013 +0000
Revision:
3:fb4d62b5ffb3
Parent:
2:d0acbd263ec7
Child:
4:067633a7dfa5
Changes - see modifs.h

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 char Ads7846_status;
frankvnk 2:d0acbd263ec7 18 unsigned short LCD_id;
frankvnk 2:d0acbd263ec7 19 TFT.claim(stdout); // send stdout to the TFT display
frankvnk 2:d0acbd263ec7 20
frankvnk 2:d0acbd263ec7 21 TFT.background(Black); // set background to black
frankvnk 2:d0acbd263ec7 22 TFT.foreground(White); // set chars to white
frankvnk 2:d0acbd263ec7 23
frankvnk 2:d0acbd263ec7 24
frankvnk 2:d0acbd263ec7 25 // LCD demo
frankvnk 2:d0acbd263ec7 26 // first show the 4 directions
frankvnk 2:d0acbd263ec7 27 TFT.cls();
frankvnk 2:d0acbd263ec7 28 TFT.set_font((unsigned char*) Arial12x12);
frankvnk 2:d0acbd263ec7 29 TFT.set_orientation(0);
frankvnk 2:d0acbd263ec7 30 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 31 printf(" Hello Mbed 0");
frankvnk 2:d0acbd263ec7 32 TFT.set_orientation(1);
frankvnk 2:d0acbd263ec7 33 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 34 printf(" Hello Mbed 1");
frankvnk 2:d0acbd263ec7 35 TFT.set_orientation(2);
frankvnk 2:d0acbd263ec7 36 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 37 printf(" Hello Mbed 2");
frankvnk 2:d0acbd263ec7 38 TFT.set_orientation(3);
frankvnk 2:d0acbd263ec7 39 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 40 printf(" Hello Mbed 3");
frankvnk 2:d0acbd263ec7 41 TFT.set_orientation(1);
frankvnk 2:d0acbd263ec7 42 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 43 TFT.locate(50,100);
frankvnk 2:d0acbd263ec7 44 TFT.printf("TFT orientation");
frankvnk 2:d0acbd263ec7 45
frankvnk 2:d0acbd263ec7 46 wait(2);
frankvnk 2:d0acbd263ec7 47
frankvnk 2:d0acbd263ec7 48 // draw some graphics
frankvnk 2:d0acbd263ec7 49 TFT.cls();
frankvnk 2:d0acbd263ec7 50 TFT.set_orientation(1);
frankvnk 2:d0acbd263ec7 51 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 52 TFT.locate(120,115);
frankvnk 2:d0acbd263ec7 53 TFT.printf("Graphic");
frankvnk 2:d0acbd263ec7 54 TFT.line(0,0,100,200,Green);
frankvnk 2:d0acbd263ec7 55 TFT.rect(100,50,50,50,Red);
frankvnk 2:d0acbd263ec7 56 TFT.fillrect(180,25,40,45,Blue);
frankvnk 2:d0acbd263ec7 57 TFT.draw_ellipse(80, 150, 33, 33, White);
frankvnk 2:d0acbd263ec7 58 TFT.fill_ellipse(80, 50, 33, 33, White);
frankvnk 2:d0acbd263ec7 59 wait(2);
frankvnk 2:d0acbd263ec7 60 TFT.cls();
frankvnk 2:d0acbd263ec7 61 TFT.draw_ellipse(160, 120, 100, 50, Yellow);
frankvnk 2:d0acbd263ec7 62 TFT.draw_ellipse(160, 120, 100, 100, Blue);
frankvnk 2:d0acbd263ec7 63 TFT.fill_ellipse(160, 120, 80, 40, Green);
frankvnk 2:d0acbd263ec7 64 wait(2);
frankvnk 2:d0acbd263ec7 65
frankvnk 2:d0acbd263ec7 66 // bigger text
frankvnk 2:d0acbd263ec7 67 TFT.foreground(White);
frankvnk 2:d0acbd263ec7 68 TFT.background(Blue);
frankvnk 2:d0acbd263ec7 69 TFT.cls();
frankvnk 2:d0acbd263ec7 70 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 71 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 72 TFT.printf("Different Fonts :");
frankvnk 2:d0acbd263ec7 73
frankvnk 2:d0acbd263ec7 74 TFT.set_font((unsigned char*) Neu42x35);
frankvnk 2:d0acbd263ec7 75 TFT.locate(0,50);
frankvnk 2:d0acbd263ec7 76 TFT.printf("Hello");
frankvnk 2:d0acbd263ec7 77 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 78 TFT.locate(50,100);
frankvnk 2:d0acbd263ec7 79 TFT.printf("Hello");
frankvnk 2:d0acbd263ec7 80 TFT.set_font((unsigned char*) Arial12x12);
frankvnk 2:d0acbd263ec7 81 TFT.locate(55,150);
frankvnk 2:d0acbd263ec7 82 TFT.printf("Hello");
frankvnk 2:d0acbd263ec7 83
frankvnk 2:d0acbd263ec7 84 TFT.set_orientation(2);
frankvnk 2:d0acbd263ec7 85 TFT.set_font((unsigned char*) Arial24x23);
frankvnk 2:d0acbd263ec7 86 TFT.locate(10,10);
frankvnk 2:d0acbd263ec7 87 TFT.printf("Hi mbed");
frankvnk 2:d0acbd263ec7 88 wait(2);
frankvnk 2:d0acbd263ec7 89
frankvnk 2:d0acbd263ec7 90 // mbed logo
frankvnk 2:d0acbd263ec7 91 TFT.set_orientation(1);
frankvnk 2:d0acbd263ec7 92 TFT.background(Black);
frankvnk 2:d0acbd263ec7 93 TFT.cls();
frankvnk 2:d0acbd263ec7 94 TFT.Bitmap(90,90,172,55,p1);
frankvnk 2:d0acbd263ec7 95
frankvnk 2:d0acbd263ec7 96 // Read LCD ID
frankvnk 2:d0acbd263ec7 97 TFT.set_orientation(0);
frankvnk 2:d0acbd263ec7 98 LCD_id = TFT.Read_ID();
frankvnk 2:d0acbd263ec7 99 TFT.locate(10,10);
frankvnk 2:d0acbd263ec7 100 TFT.printf("LCD: ILI%04X", LCD_id);
frankvnk 2:d0acbd263ec7 101 wait(2);
frankvnk 2:d0acbd263ec7 102
frankvnk 2:d0acbd263ec7 103 // RGB color wheel demo (cycle through all colors)
frankvnk 2:d0acbd263ec7 104 TFT.cls();
frankvnk 2:d0acbd263ec7 105 TFT.foreground(Yellow); // set chars to yellow
frankvnk 2:d0acbd263ec7 106 TFT.set_font((unsigned char*) Arial12x12);
frankvnk 2:d0acbd263ec7 107 TFT.locate(10,10);
frankvnk 2:d0acbd263ec7 108 TFT.printf("RGB color wheel (2x)");
frankvnk 2:d0acbd263ec7 109
frankvnk 2:d0acbd263ec7 110 uint8_t r = 255, g = 0, b = 0, step = 5, i;
frankvnk 2:d0acbd263ec7 111 for (i=0;i<2;i++)
frankvnk 2:d0acbd263ec7 112 {
frankvnk 2:d0acbd263ec7 113 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 114 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 115 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 116 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 117 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 118 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 119 }
frankvnk 2:d0acbd263ec7 120 wait(2);
frankvnk 2:d0acbd263ec7 121
frankvnk 2:d0acbd263ec7 122
frankvnk 2:d0acbd263ec7 123 // Touchpanel demo
frankvnk 2:d0acbd263ec7 124 TP.TouchPanel_Calibrate();
frankvnk 2:d0acbd263ec7 125 TFT.set_font((unsigned char*) Arial12x12);
frankvnk 2:d0acbd263ec7 126 TFT.set_orientation(0);
frankvnk 3:fb4d62b5ffb3 127 // TFT.cls();
frankvnk 2:d0acbd263ec7 128 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 129 TFT.printf(" X:");
frankvnk 2:d0acbd263ec7 130 TFT.locate(70,0);
frankvnk 2:d0acbd263ec7 131 TFT.printf(" Y:");
frankvnk 2:d0acbd263ec7 132 while (1)
frankvnk 2:d0acbd263ec7 133 {
frankvnk 2:d0acbd263ec7 134 if (!TP._tp_irq)
frankvnk 2:d0acbd263ec7 135 {
frankvnk 3:fb4d62b5ffb3 136 Ads7846_status = TP.Read_Ads7846();
frankvnk 2:d0acbd263ec7 137 if (Ads7846_status)
frankvnk 2:d0acbd263ec7 138 {
frankvnk 2:d0acbd263ec7 139 TP.getDisplayPoint() ;
frankvnk 3:fb4d62b5ffb3 140 TP.TP_DrawPoint(TP.display.x,TP.display.y, Blue);
frankvnk 3:fb4d62b5ffb3 141 // TFT.rect(TP.display.x,TP.display.y,1,1,Red);
frankvnk 2:d0acbd263ec7 142 TFT.locate(25,0);
frankvnk 2:d0acbd263ec7 143 printf("%03d",TP.display.x);
frankvnk 2:d0acbd263ec7 144 TFT.locate(95,0);
frankvnk 2:d0acbd263ec7 145 printf("%03d",TP.display.y);
frankvnk 2:d0acbd263ec7 146 // Touchscreen area is larger than LCD area.
frankvnk 2:d0acbd263ec7 147 // We use the bottom area outside the LCD area to clear the screen (y value > 320).
frankvnk 2:d0acbd263ec7 148 if (TP.display.y > 320)
frankvnk 2:d0acbd263ec7 149 {
frankvnk 2:d0acbd263ec7 150 TFT.cls();
frankvnk 2:d0acbd263ec7 151 TFT.locate(0,0);
frankvnk 2:d0acbd263ec7 152 TFT.printf(" X:");
frankvnk 2:d0acbd263ec7 153 TFT.locate(70,0);
frankvnk 2:d0acbd263ec7 154 TFT.printf(" Y:");
frankvnk 2:d0acbd263ec7 155 }
frankvnk 2:d0acbd263ec7 156 }
frankvnk 2:d0acbd263ec7 157 }
frankvnk 2:d0acbd263ec7 158 }
frankvnk 2:d0acbd263ec7 159 }