main.cpp

00001 // example to test the TFT Display
00002 // Thanks to the GraphicsDisplay and TextDisplay classes from
00003 
00004 #include "stdio.h"
00005 #include "mbed.h"
00006 #include "SPI_TFT.h"
00007 #include "string"
00008 #include "Arial12x12.h"
00009 #include "Arial24x23.h"
00010 #include "Arial28x28.h"
00011 #include "font_big.h"
00012 
00013 extern unsigned char p1[];  // the mbed logo
00014 
00015 // the TFT is connected to SPI pin 5-7
00016 //SPI_TFT TFT(p11, p12, p13, p14, p15,"TFT"); // mosi, miso, sclk, cs, reset
00017 SPI_TFT TFT(CLCD_MOSI, CLCD_MISO, CLCD_SCLK, CLCD_SSEL , CLCD_RESET, "TFT"); // mosi, miso, sclk, cs, reset
00018 Serial pc(USBTX, USBRX);
00019 
00020 const uint16_t colorTable[18] = {
00021     Black,
00022     Navy,
00023     DarkGreen,
00024     DarkCyan,
00025     Maroon,
00026     Purple,
00027     Olive,
00028     LightGrey,
00029     DarkGrey,
00030     Blue,
00031     Green,
00032     Cyan,
00033     Red,
00034     Magenta,
00035     Yellow,
00036     White,
00037     Orange,
00038     GreenYellow
00039 };
00040 
00041 void screen2(void) // Graphics
00042 {
00043     //Draw some graphics
00044     int i, x[2], y[2] ;
00045 
00046     TFT.background(Black);
00047     TFT.foreground(White);
00048     TFT.cls() ;
00049     TFT.set_font((unsigned char*) Arial12x12);
00050     TFT.locate(90,0);
00051     TFT.printf("Graphics");
00052 
00053     x[0] = 25 ;
00054     x[1] = 224 ;
00055     y[0] = 20 ;
00056     y[1] = 219 ;
00057     for (i = 20 ; i < 220 ; i += 10) {
00058         TFT.line(i+5, y[0], i+5, y[1], Blue) ;
00059         TFT.line(x[0], i, x[1], i, Blue) ;
00060     }
00061     TFT.line(125, y[0], 125, y[1], Green) ;
00062     TFT.line(x[0], 120, x[1], 120, Green) ;
00063     TFT.rect(x[0],y[0], x[1], y[1], Green) ;
00064     TFT.locate(10, 20) ;
00065     TFT.printf("V") ;
00066     TFT.locate(0, 115) ;
00067     TFT.printf("0.0") ;
00068     TFT.locate(115, 225) ;
00069     TFT.printf("0.0") ;
00070     TFT.locate(215, 225) ;
00071     TFT.printf("T") ;
00072 
00073     double s;
00074     for (int i = x[0]; i < 225; i++) {
00075         s = 40 * sin((long double)i / 20);
00076         TFT.pixel(i, 120 + (int)s, White);
00077     }
00078 #if 0
00079     TFT.fillrect(10, 240, 229, 309, White) ;
00080     TFT.rect(10, 240, 229, 309, Red) ;
00081     TFT.rect(11, 241, 228, 308, Red) ;
00082 
00083     TFT.background(White) ;
00084     TFT.foreground(Black) ;
00085     TFT.locate(20, 250) ;
00086     TFT.printf("With QVGA resolution") ;
00087     TFT.locate(20, 270) ;
00088     TFT.printf("simple graphics drawing") ;
00089     TFT.locate(20, 290) ;
00090     TFT.printf("capability is provided") ;
00091 #endif
00092 }
00093 
00094 int main()
00095 {
00096     pc.baud(38400);
00097     pc.printf("Hello, mbed world.\n");
00098     pc.printf("System core lock : %d\n", SystemCoreClock);
00099 
00100     TFT.claim(stdout);      // send stdout to the TFT display
00101     //TFT.claim(stderr);      // send stderr to the TFT display
00102 
00103     while(1) {
00104         TFT.background(Black);    // set background to black
00105         TFT.foreground(White);    // set chars to white
00106         TFT.cls();                // clear the screen
00107         TFT.set_font((unsigned char*) Arial12x12);  // select the font
00108 
00109         // first show the 4 directions
00110         TFT.set_orientation(0);
00111         TFT.locate(0,0);
00112         printf("  Hello Mbed 0");
00113         TFT.set_orientation(1);
00114         TFT.locate(0,0);
00115         printf("  Hello Mbed 1");
00116         TFT.set_orientation(2);
00117         TFT.locate(0,0);
00118         printf("  Hello Mbed 2");
00119         TFT.set_orientation(3);
00120         TFT.locate(0,0);
00121         printf("  Hello Mbed 3");
00122         TFT.set_orientation(1);
00123         TFT.set_font((unsigned char*) Arial24x23);
00124         TFT.locate(50,100);
00125         TFT.printf("TFT orientation");
00126 
00127         wait(5);        // wait two seconds
00128 
00129         screen2();
00130         wait(5);
00131 
00132         // draw some graphics
00133         TFT.background(Black);    // set background to black
00134         TFT.foreground(White);    // set chars to white
00135         TFT.cls();
00136         TFT.set_orientation(1);
00137         TFT.set_font((unsigned char*) Arial24x23);
00138         TFT.locate(120,30);
00139         TFT.printf("Graphic");
00140 
00141         /*
00142         TFT.line(0,0,100,200,Green);
00143         TFT.rect(100,50,150,100,Red);
00144         TFT.fillrect(180,25,220,70,Blue);
00145         TFT.circle(80,150,33,White);
00146         */
00147         
00148         int c = 0;
00149         for(int i = 0; i < 32; i++) {
00150             TFT.fillrect(i*10, i*7, i*10 + 20, i*7 + 20, colorTable[c++]);
00151             TFT.rect(i*10, 240 - i*7,i*10 + 20, 240 - i*7 - 20, colorTable[c++]);
00152             TFT.circle(i*10, 120, 20, colorTable[c++]);
00153             if (c > 18)
00154                 c = 0;
00155         }
00156 
00157         wait(5);        // wait two seconds
00158 
00159         // bigger text
00160         TFT.foreground(White);
00161         TFT.background(Blue);
00162         TFT.cls();
00163         TFT.set_font((unsigned char*) Arial24x23);
00164         TFT.locate(0,0);
00165         TFT.printf("Different Fonts :");
00166 
00167         TFT.set_font((unsigned char*) Neu42x35);
00168         TFT.locate(0,30);
00169         TFT.printf("Hello Mbed 1");
00170         TFT.set_font((unsigned char*) Arial24x23);
00171         TFT.locate(20,80);
00172         TFT.printf("Hello Mbed 2");
00173         TFT.set_font((unsigned char*) Arial12x12);
00174         TFT.locate(35,120);
00175         TFT.printf("Hello Mbed 3");
00176         wait(5);
00177 
00178         // mbed logo
00179         TFT.set_orientation(1);
00180         TFT.background(Black);
00181         TFT.cls();
00182         TFT.Bitmap(90,90,172,55,p1);
00183         wait(5);
00184     }
00185 }
00186