My first trial of using UniGraphic library.

Dependencies:   MMA8451Q SPI_STMPE610 UniGraphic mbed

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main.cpp

00001 #include "mbed.h"
00002 #include "MMA8451Q.h"
00003 #include <ILI9341.h>
00004 #include "Arial12x12.h"
00005 #include "Arial24x23.h"
00006 #include "Arial28x28.h"
00007 #include "Arial43x48_numb.h"
00008 #include "SPI_STMPE610.h"
00009 #include "main.h"
00010 
00011 DigitalOut myled(LED1);
00012 ILI9341 TFT(SPI_8, 10000000, 
00013     PIN_MOSI, PIN_MISO,  PIN_SCLK, 
00014     PIN_CS_TFT, PIN_RESET_TFT, PIN_DC_TFT, "Adafruit2.8") ;
00015     
00016 SPI_STMPE610 TSC(PIN_MOSI, PIN_MISO, PIN_SCLK, PIN_CS_TSC) ;
00017 
00018 DigitalOut backlight(PIN_BL_TFT) ;
00019 
00020 #define MMA8451_I2C_ADDRESS (0x1d<<1)
00021 MMA8451Q *acc = 0 ;
00022 
00023 int page = 0 ;
00024 int numPage = 3 ;
00025 
00026 void initTFT(void)
00027 {
00028     //Configure the display driver    
00029     TFT.FastWindow(true) ;
00030     TFT.background(Black);
00031     TFT.foreground(White);
00032     wait(0.01) ;
00033     TFT.cls();
00034 }
00035 
00036 void screen1(void) // Welcome Screen
00037 {
00038     backlight = 0 ;
00039     TFT.BusEnable(true) ;
00040     TFT.background(White) ;
00041     TFT.cls() ;
00042 
00043     wait(0.1) ;
00044     TFT.set_font((unsigned char*) Arial24x23);
00045     TFT.foreground(Red) ;
00046     TFT.locate(80, 30) ;
00047     TFT.printf("MBED") ;
00048     TFT.foreground(Blue);
00049     TFT.locate(60, 60) ;
00050     TFT.printf("2.8\"TFT") ; 
00051     TFT.locate(40, 90) ;
00052     TFT.printf("with touch") ;
00053     TFT.foreground(Green) ;
00054     TFT.locate(10, 130) ;
00055     TFT.printf("UniGraphic Ver.") ;
00056     TFT.foreground(Black);
00057     TFT.set_font((unsigned char*) Arial12x12);
00058     TFT.foreground(Blue) ;
00059     TFT.locate(20, 180) ;
00060     TFT.printf("This program is running on") ;
00061     TFT.locate(20, 200) ;
00062     TFT.printf("freescale FRDM-KL25Z with") ;
00063     TFT.locate(20, 220) ;
00064     TFT.printf("a program developed on mbed") ;
00065     TFT.foreground(Green) ;
00066     TFT.locate(20, 260) ;
00067     TFT.printf("To advance demo page, touch") ;
00068     TFT.locate(20, 280) ;
00069     TFT.printf("and hold right side of screen") ;
00070     TFT.locate(20, 300) ;
00071     TFT.printf("until the next screen starts") ;
00072     TFT.BusEnable(false) ;
00073     backlight = 1 ;
00074 }
00075 
00076 void screen2(void) // Graphics
00077 {
00078     //Draw some graphics
00079     int i, x[2], y[2] ;
00080     backlight = 0 ;
00081     TFT.BusEnable(true) ;
00082     
00083     TFT.background(Black);
00084     TFT.foreground(White);
00085     TFT.cls() ;
00086     TFT.set_font((unsigned char*) Arial12x12);
00087     TFT.locate(90,0);
00088     TFT.printf("Graphics");
00089     
00090     x[0] = 25 ; x[1] = 224 ;
00091     y[0] = 20 ; y[1] = 219 ;
00092     for (i = 20 ; i < 220 ; i += 10) {
00093         TFT.line(i+5, y[0], i+5, y[1], Blue) ;
00094         TFT.line(x[0], i, x[1], i, Blue) ;
00095     }
00096     TFT.line(125, y[0], 125, y[1], Green) ;
00097     TFT.line(x[0], 120, x[1], 120, Green) ;
00098     TFT.rect(x[0],y[0], x[1], y[1], Green) ;
00099     TFT.locate(10, 20) ;
00100     TFT.printf("V") ;
00101     TFT.locate(0, 115) ;
00102     TFT.printf("0.0") ;
00103     TFT.locate(115, 225) ;
00104     TFT.printf("0.0") ;
00105     TFT.locate(215, 225) ;
00106     TFT.printf("T") ;
00107 
00108     double s;
00109     for (int i = x[0]; i < 225; i++) {
00110         s = 40 * sin((long double)i / 20);
00111         TFT.pixel(i, 120 + (int)s, White);
00112     }
00113     
00114     TFT.fillrect(10, 240, 229, 309, White) ;
00115     TFT.rect(10, 240, 229, 309, Red) ;
00116     TFT.rect(11, 241, 228, 308, Red) ;
00117     
00118     TFT.background(White) ;
00119     TFT.foreground(Black) ;
00120     TFT.locate(20, 250) ;
00121     TFT.printf("With QVGA resolution") ;
00122     TFT.locate(20, 270) ;
00123     TFT.printf("simple graphics drawing") ;
00124     TFT.locate(20, 290) ;
00125     TFT.printf("capability is provided") ;
00126     
00127     TFT.BusEnable(false) ;
00128     backlight = 1 ;
00129 }    
00130 
00131 double clip(double src)
00132 {
00133     double value ;
00134     value = src ;
00135     if (value < 0.0) {
00136         value = 0.0 ;
00137     } else if (value > 2.0) {
00138         value = 2.0 ;
00139     }
00140     return( value ) ;
00141 }
00142 
00143 void screen3(void)
00144 {
00145     int t = 0 ;
00146     int pt = 0 ; // previous t 
00147     int i, x, y ;
00148     unsigned int data[3] ; // for x, y, z 
00149     unsigned int prev[3] ;
00150     unsigned short signalHeight = 39 ;
00151     unsigned short xoffset = 30 ;
00152     unsigned short yoffset = 120 ;
00153     unsigned short zoffset = 210 ;
00154     unsigned short paneX[2] = {20, 235} ;
00155     unsigned short paneH = 81 ;
00156  
00157     backlight = 0 ;
00158     TFT.BusEnable(true) ;
00159     TFT.background(Black) ;
00160     TFT.foreground(White) ;
00161 //    TFT.cls() ;
00162 
00163  
00164     TFT.fillrect(paneX[0], xoffset, paneX[1], xoffset+paneH, Black) ;
00165     TFT.fillrect(paneX[0], yoffset, paneX[1], yoffset+paneH, Black) ;
00166     TFT.fillrect(paneX[0], zoffset, paneX[1], zoffset+paneH, Black) ;
00167     TFT.fillrect(paneX[0], xoffset, paneX[1], xoffset+paneH, Black) ;
00168     for (i = 0 ; i < 10 ; i++ ) {
00169         y = i * 8 ;
00170         TFT.line(paneX[0], xoffset + y, paneX[1], xoffset + y, Blue) ;
00171         TFT.line(paneX[0], yoffset + y, paneX[1], yoffset + y, Blue) ;
00172         TFT.line(paneX[0], zoffset + y, paneX[1], zoffset + y, Blue) ;
00173     }
00174     for (x = 30 ; x < paneX[1] ; x += 10 ) {
00175         TFT.line(x, xoffset, x, xoffset+paneH, Blue) ;
00176         TFT.line(x, yoffset, x, yoffset+paneH, Blue) ;
00177         TFT.line(x, zoffset, x, zoffset+paneH, Blue) ;
00178     } 
00179     TFT.rect(paneX[0], xoffset, paneX[1], xoffset+paneH, White) ;
00180     TFT.rect(paneX[0], yoffset, paneX[1], yoffset+paneH, White) ;
00181     TFT.rect(paneX[0], zoffset, paneX[1], zoffset+paneH, White) ;
00182     TFT.set_font((unsigned char*) Arial12x12);
00183     TFT.locate(5, xoffset+30) ;
00184     TFT.printf("X") ;
00185     TFT.locate(5, yoffset+30) ;
00186     TFT.printf("Y") ;
00187     TFT.locate(5, zoffset+30) ;
00188     TFT.printf("Z") ;
00189     TFT.locate(50, 10) ;
00190     TFT.printf("Xtrinsic Accelerometer") ;
00191     TFT.locate(90, 300) ;
00192     TFT.printf("MMA8451Q") ;
00193     
00194     prev[0] = xoffset + (signalHeight * clip((1.0 + acc->getAccX()))) ;
00195     prev[1] = yoffset + (signalHeight * clip((1.0 + acc->getAccY()))) ;
00196     prev[2] = zoffset + (signalHeight * clip((1.0 + acc->getAccZ()))) ;
00197     pt = paneX[0] ;
00198     backlight = 1 ;
00199     for(t = 21 ; t < paneX[1] ; t++) {
00200         data[0] = xoffset + (signalHeight * clip((1.0 + acc->getAccX()))) ;
00201         data[1] = yoffset + (signalHeight * clip((1.0 + acc->getAccY()))) ;
00202         data[2] = zoffset + (signalHeight * clip((1.0 + acc->getAccZ()))) ;
00203         TFT.line(pt, prev[0], t, data[0], Red) ;
00204         TFT.line(pt, prev[1], t, data[1], Green) ;
00205         TFT.line(pt, prev[2], t, data[2], Yellow) ;
00206         prev[0] = data[0] ;
00207         prev[1] = data[1] ;
00208         prev[2] = data[2] ;
00209         pt = t ;
00210         wait(0.01) ;
00211     }
00212     TFT.BusEnable(false) ;
00213 }
00214 
00215 void incPage(void)
00216 {
00217     page++ ;
00218     if (page >= numPage) {
00219         page = 0 ;
00220     }
00221 }
00222 
00223 void decPage(void) 
00224 {
00225     page-- ;
00226     if (page < 0) {
00227         page = numPage - 1 ;
00228     }
00229 }
00230 
00231 int main() {
00232     uint16_t x, y, z ;
00233     int prevPage = 0 ;
00234     
00235     acc = new MMA8451Q(PTE25, PTE24, MMA8451_I2C_ADDRESS) ;
00236     
00237     initTFT() ;
00238     
00239     screen1() ;
00240         
00241     printf("Program Started!\n\r") ;
00242     
00243     for(;;) {
00244 //        printf("TFT width = %d, height = %d\n\r", TFT.width(), TFT.height()) ;
00245         switch(page) {
00246         case 0:
00247             if (prevPage != page) {
00248                 screen1() ;
00249             }
00250             break ;
00251         case 1:
00252             if (prevPage != page) {
00253                 screen2() ; 
00254             }
00255             break ;
00256         case 2:
00257             if (prevPage != page) {
00258                 TFT.BusEnable(true) ;
00259                 TFT.background(Black) ;
00260                 TFT.foreground(White) ;
00261                 TFT.cls() ;
00262                 TFT.BusEnable(false) ;
00263             }
00264             screen3() ; 
00265             wait(2) ;
00266             break ;
00267         default:
00268             page = 0 ; 
00269             break ;
00270         }
00271         prevPage = page ;
00272  
00273         TSC.getRAWPoint(&x, &y, &z) ;
00274         if ((x != 0)||(y != 0) || (z != 0)) {
00275             if (x < 1000) { // left
00276                 decPage() ;
00277             } else if (x > 3000) { // right
00278                 incPage() ;
00279             }
00280         }
00281 //        wait(1) ;
00282     }
00283 }