Diff: main.cpp

Revision:

10:b644d6e084bc

Parent:

8:31e63caf37e2

Child:

11:14cf235d715f

--- a/main.cpp	Wed Oct 28 15:06:56 2015 +0000
+++ b/main.cpp	Mon Mar 14 18:40:52 2016 +0000
@@ -2,170 +2,85 @@
 //
 #include "mbed.h"
 #include "uLCD_4DGL.h"
+#include "PinDetect.h"
 
 uLCD_4DGL uLCD(p9,p10,p11); // serial tx, serial rx, reset pin;
+PinDetect pb1(p15);
+PinDetect pb2(p16);
+PinDetect pb3(p17);
+
+int volatile sizeCount=1;       //font size count, set to 1 initially
+int volatile fontCount=0;       //font count
+int volatile isInterrupted=1;   //indicate an interrupt
+ 
+//pb1 to increase font size
+void pb1_hit_callback (void) {
+    if (sizeCount < 4) {sizeCount++;}
+    uLCD.cls();
+    isInterrupted=1;
+}
+
+//pb2 to decrease font size
+void pb2_hit_callback (void) {
+    if (sizeCount > 1) {sizeCount--;}
+    uLCD.cls();
+    isInterrupted=1;
+}
+
+//pb3 changes font. Loops through default, comic sans, tahoma, and courier new
+void pb3_hit_callback (void) {
+    if (fontCount < 3) {fontCount++;}
+    else {fontCount = 0;}
+    uLCD.cls();
+    isInterrupted=1;
+}
 
 int main()
 {
-    // basic printf demo = 16 by 18 characters on screen
-    uLCD.printf("\nHello uLCD World\n"); //Default Green on black text
-    uLCD.printf("\n  Starting Demo...");
-    uLCD.text_width(4); //4X size text
-    uLCD.text_height(4);
-    uLCD.color(RED);
-    for (int i=10; i>=0; --i) {
-        uLCD.locate(1,2);
-        uLCD.printf("%2D",i);
-        wait(.5);
-    }
-    uLCD.cls();
-    uLCD.printf("Change baudrate......");
-    uLCD.baudrate(3000000); //jack up baud rate to max for fast display
-    //if demo hangs here - try lower baud rates
-    //
-    // printf text only full screen mode demo
-    uLCD.background_color(BLUE);
-    uLCD.cls();
-    uLCD.locate(0,0);
-    uLCD.color(WHITE);
-    uLCD.textbackground_color(BLUE);
-    uLCD.set_font(FONT_7X8);
-    uLCD.text_mode(OPAQUE);
-    int i=0;
-    while(i<64) {
-        if(i%16==0) uLCD.cls();
-        uLCD.printf("TxtLine %2D Page %D\n",i%16,i/16 );
-        i++; //16 lines with 18 charaters per line
-    }
-    wait(0.5);
-    //demo graphics commands
-    uLCD.background_color(BLACK);
-    uLCD.cls();
-    uLCD.background_color(DGREY);
-    uLCD.filled_circle(60, 50, 30, 0xFF00FF);
-    uLCD.triangle(120, 100, 40, 40, 10, 100, 0x0000FF);
-    uLCD.line(0, 0, 80, 60, 0xFF0000);
-    uLCD.filled_rectangle(50, 50, 100, 90, 0x00FF00);
-    uLCD.pixel(60, 60, BLACK);
-    uLCD.read_pixel(120, 70);
-    uLCD.circle(120, 60, 10, BLACK);
-    uLCD.set_font(FONT_7X8);
-    uLCD.text_mode(TRANSPARENT);
-    uLCD.text_bold(ON);
-    uLCD.text_char('B', 9, 8, BLACK);
-    uLCD.text_char('I',10, 8, BLACK);
-    uLCD.text_char('G',11, 8, BLACK);
-    uLCD.text_italic(ON);
-    uLCD.text_string("This is a test of string", 1, 4, FONT_7X8, WHITE);
-    wait(2);
+    pb1.mode(PullUp);    
+    pb2.mode(PullUp);
+    pb3.mode(PullUp);
+    wait(.01);
+    // Setup Interrupt callback functions for a pb hit
+    pb1.attach_deasserted(&pb1_hit_callback);
+    pb2.attach_deasserted(&pb2_hit_callback);
+    pb3.attach_deasserted(&pb3_hit_callback);
+    // Start sampling pb inputs using interrupts
+    pb1.setSampleFrequency();
+    pb2.setSampleFrequency();
+    pb3.setSampleFrequency();
+    uLCD.media_init(); // initialize uSD card
+    uLCD.printf("\n  Hello\n  Font\n  World");
+    while (1) {
+        //change font settings if a button is pushed
+        if(isInterrupted == 1) {
+            uLCD.cls();
+            isInterrupted = 0;
+            //comic sans
+            if(fontCount == 1) {
+                uLCD.set_sector_address(0,0);
+                uLCD.set_font(MEDIAFONT);
+            }
+            //tahoma
+            else if(fontCount == 2) {
+                uLCD.set_sector_address(0,0xE);
+                uLCD.set_font(MEDIAFONT);
+            }
+            //courier new
+            else if(fontCount == 3) {
+                uLCD.set_sector_address(0,0x1C);
+                uLCD.set_font(MEDIAFONT);
+            }
+            //default font
+            else {
+                uLCD.set_sector_address(0,0);
+                uLCD.set_font(FONT_7X8);
+            }
+            //increase or decrease font
+            uLCD.text_width(sizeCount); //1X size text
+            uLCD.text_height(sizeCount);    
+            uLCD.printf("\n  Hello\n  Font\n  World");
+        }
 
-//Bouncing Ball Demo
-    float fx=50.0,fy=21.0,vx=1.0,vy=0.4;
-    int x=50,y=21,radius=4;
-    uLCD.background_color(BLACK);
-    uLCD.cls();
-    //draw walls
-    uLCD.line(0, 0, 127, 0, WHITE);
-    uLCD.line(127, 0, 127, 127, WHITE);
-    uLCD.line(127, 127, 0, 127, WHITE);
-    uLCD.line(0, 127, 0, 0, WHITE);
-    for (int i=0; i<1500; i++) {
-        //draw ball
-        uLCD.filled_circle(x, y, radius, RED);
-        //bounce off edge walls and slow down a bit?
-        if ((x<=radius+1) || (x>=126-radius)) vx = -.90*vx;
-        if ((y<=radius+1) || (y>=126-radius)) vy = -.90*vy;
-        //erase old ball location
-        uLCD.filled_circle(x, y, radius, BLACK);
-        //move ball
-        fx=fx+vx;
-        fy=fy+vy;
-        x=(int)fx;
-        y=(int)fy;
     }
-    wait(0.5);
-//draw an image pixel by pixel
-    int pixelcolors[50][50];
-    uLCD.background_color(BLACK);
-    uLCD.cls();
-//compute Mandelbrot set image for display
-//image size in pixels
-    const unsigned ImageHeight=128;
-    const unsigned ImageWidth=128;
-    //"c" region to display
-    double MinRe = -0.75104;
-    double MaxRe = -0.7408;
-    double MinIm = 0.10511;
-    double MaxIm = MinIm+(MaxRe-MinRe)*ImageHeight/ImageWidth;
-    double Re_factor = (MaxRe-MinRe)/(ImageWidth-1);
-    double Im_factor = (MaxIm-MinIm)/(ImageHeight-1);
-    unsigned MaxIterations = 2048;
-    for(unsigned y=0; y<ImageHeight; ++y) {
-        double c_im = MaxIm - y*Im_factor;
-        for(unsigned x=0; x<ImageWidth; ++x) {
-            double c_re = MinRe + x*Re_factor;
-            double Z_re = c_re, Z_im = c_im;
-            int niterations=0;
-            for(unsigned n=0; n<MaxIterations; ++n) {
-                double Z_re2 = Z_re*Z_re, Z_im2 = Z_im*Z_im;
-                if(Z_re2 + Z_im2 > 4) {
-                    niterations = n;
-                    break;
-                }
-                Z_im = 2*Z_re*Z_im + c_im;
-                Z_re = Z_re2 - Z_im2 + c_re;
-            }
-            if (niterations!=(MaxIterations-1))
-                uLCD.pixel(x,y,((niterations & 0xF00)<<12)+((niterations & 0xF0)<<8)+((niterations & 0x0F)<<4) );
-        }
-    }
-    wait(5);
-// PLASMA wave BLIT animation
-//draw an image using BLIT (Block Image Transfer) fastest way to transfer pixel data
-    uLCD.cls();
-    int num_cols=50;
-    int num_rows=50;
-    int frame=0;
-    double a,b,c=0.0;
-    while(frame<75) {
-        for (int k=0; k<num_cols; k++) {
-            b= (1+sin(3.14159*k*0.75/(num_cols-1.0)+c))*0.5;
-            for (int i=0; i<num_rows; i++) {
-                a= (1+sin(3.14159*i*0.75/(num_rows-1.0)+c))*0.5;
-                // a and b will be a sine wave output between 0 and 1
-                // sine wave was scaled for nice effect across array
-                // uses a and b to compute pixel colors based on rol and col location in array
-                // also keeps colors at the same brightness level
-                if ((a+b) <.667)
-                    pixelcolors[i][k] =  (255-(int(254.0*((a+b)/0.667)))<<16) | (int(254.0*((a+b)/0.667))<<8) | 0;
-                else if ((a+b)<1.333)
-                    pixelcolors[i][k] = (0 <<16) | (255-(int (254.0*((a+b-0.667)/0.667)))<<8) | int(254.0*((a+b-0.667)/0.667));
-                else
-                    pixelcolors[i][k] = (int(255*((a+b-1.333)/0.667))<<16) | (0<<8)  | (255-(int (254.0*((a+b-1.333)/0.667))));
-            }
-        }
-        uLCD.BLIT(39, 39, 50, 50, &pixelcolors[0][0]);
-        c = c + 0.0314159*3.0;
-        if (c > 6.2831) c = 0.0;
-        frame++;
-    }
-    //Load Image Demo
-    uLCD.cls();
-    //SD card needed with image and video files for last two demos
-    uLCD.cls();
-    uLCD.media_init();
-    uLCD.printf("\n\nAn SD card is needed for image and video data");
-    uLCD.set_sector_address(0x001D, 0x4C01);
-    uLCD.display_image(0,0);
-    wait(10);
-    //Play video demo
-    while(1) {
-        uLCD.cls();
-        uLCD.media_init();
-        uLCD.set_sector_address(0x001D, 0x4C42);
-        uLCD.display_video(0,0);
-    }
-}
-
-
-
+}
\ No newline at end of file