Stephen Norod / Mbed 2 deprecated buzz_run

ECE 4180 @ Georgia Tech

Dependencies:   mbed mbed-rtos 4DGL-uLCD-SE MMA8452

main.cpp@6:f752accd632c, 2013-11-22 (annotated)

Committer:
4180_1
Date:
Fri Nov 22 02:45:05 2013 +0000
Revision:
6:f752accd632c
Parent:
5:a1ef40ff0f78
Child:
7:7bd7397ab89f
ver1.4

Who changed what in which revision?

UserRevisionLine numberNew contents of line
4180_1 0:cfcf73272647 1 //
4180_1 0:cfcf73272647 2 // TFT_4DGL is a class to drive 4D Systems TFT touch screens
4180_1 0:cfcf73272647 3 //
4180_1 0:cfcf73272647 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
4180_1 0:cfcf73272647 5 //
4180_1 0:cfcf73272647 6 // TFT_4DGL is free software: you can redistribute it and/or modify
4180_1 0:cfcf73272647 7 // it under the terms of the GNU General Public License as published by
4180_1 0:cfcf73272647 8 // the Free Software Foundation, either version 3 of the License, or
4180_1 0:cfcf73272647 9 // (at your option) any later version.
4180_1 0:cfcf73272647 10 //
4180_1 0:cfcf73272647 11 // TFT_4DGL is distributed in the hope that it will be useful,
4180_1 0:cfcf73272647 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
4180_1 0:cfcf73272647 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4180_1 0:cfcf73272647 14 // GNU General Public License for more details.
4180_1 0:cfcf73272647 15 //
4180_1 0:cfcf73272647 16 // You should have received a copy of the GNU General Public License
4180_1 0:cfcf73272647 17 // along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
4180_1 0:cfcf73272647 18
4180_1 0:cfcf73272647 19 #include "mbed.h"
4180_1 2:75727e89a717 20 #include "uLCD_4DGL.h"
4180_1 0:cfcf73272647 21
4180_1 6:f752accd632c 22 //#define SIZE_X 128
4180_1 6:f752accd632c 23 //#define SIZE_Y 128
4180_1 1:38ef731c7bdf 24 //
4180_1 1:38ef731c7bdf 25
4180_1 2:75727e89a717 26 uLCD_4DGL uLCD(p9,p10,p11); // serial tx, serial rx, reset pin;
4180_1 0:cfcf73272647 27
4180_1 2:75727e89a717 28 int main()
4180_1 2:75727e89a717 29 {
4180_1 6:f752accd632c 30
4180_1 3:454d1f4c8fd7 31 // basic printf demo = 16 by 18 characters on screen
4180_1 3:454d1f4c8fd7 32 uLCD.printf("\nHello uLCD World\n"); //Default Green on black text
4180_1 3:454d1f4c8fd7 33 uLCD.printf("\n Starting Demo...");
4180_1 3:454d1f4c8fd7 34 uLCD.text_width(4); //4X size text
4180_1 3:454d1f4c8fd7 35 uLCD.text_height(4);
4180_1 3:454d1f4c8fd7 36 uLCD.color(RED);
4180_1 3:454d1f4c8fd7 37 for (int i=10; i>=0; --i) {
4180_1 3:454d1f4c8fd7 38 uLCD.locate(1,2);
4180_1 3:454d1f4c8fd7 39 uLCD.printf("%2D",i);
4180_1 3:454d1f4c8fd7 40 wait(.5);
4180_1 3:454d1f4c8fd7 41 }
4180_1 3:454d1f4c8fd7 42 uLCD.cls();
4180_1 6:f752accd632c 43 uLCD.baudrate(600000); //jack up baud rate to max for fast display
4180_1 6:f752accd632c 44 //if demo hangs here - try lower baud rates
4180_1 6:f752accd632c 45 //demo graphics commands
4180_1 2:75727e89a717 46 uLCD.background_color(DGREY);
4180_1 2:75727e89a717 47 uLCD.circle(60, 50, 30, 0xFF00FF);
4180_1 2:75727e89a717 48 uLCD.triangle(120, 100, 40, 40, 10, 100, 0x0000FF);
4180_1 2:75727e89a717 49 uLCD.line(0, 0, 80, 60, 0xFF0000);
4180_1 2:75727e89a717 50 uLCD.rectangle(50, 50, 100, 90, 0x00FF00);
4180_1 2:75727e89a717 51 uLCD.pixel(60, 60, BLACK);
4180_1 2:75727e89a717 52 uLCD.read_pixel(120, 70);
4180_1 2:75727e89a717 53 uLCD.circle(120, 60, 10, BLACK);
4180_1 3:454d1f4c8fd7 54 uLCD.set_font(FONT_7X8);
4180_1 2:75727e89a717 55 uLCD.text_mode(TRANSPARENT);
4180_1 6:f752accd632c 56 uLCD.text_bold(ON);
4180_1 2:75727e89a717 57 uLCD.text_char('B', 9, 8, BLACK);
4180_1 2:75727e89a717 58 uLCD.text_char('I',10, 8, BLACK);
4180_1 2:75727e89a717 59 uLCD.text_char('G',11, 8, BLACK);
4180_1 6:f752accd632c 60 uLCD.text_italic(ON);
4180_1 3:454d1f4c8fd7 61 uLCD.text_string("This is a test of string", 1, 4, FONT_7X8, WHITE);
4180_1 3:454d1f4c8fd7 62 wait(2);
4180_1 3:454d1f4c8fd7 63 // printf text only mode demo
4180_1 3:454d1f4c8fd7 64 uLCD.background_color(BLUE);
4180_1 3:454d1f4c8fd7 65 uLCD.cls();
4180_1 3:454d1f4c8fd7 66 uLCD.locate(0,0);
4180_1 3:454d1f4c8fd7 67 uLCD.color(WHITE);
4180_1 3:454d1f4c8fd7 68 uLCD.textbackground_color(BLUE);
4180_1 3:454d1f4c8fd7 69 uLCD.set_font(FONT_7X8);
4180_1 3:454d1f4c8fd7 70 uLCD.text_mode(OPAQUE);
4180_1 3:454d1f4c8fd7 71 int i=0;
4180_1 3:454d1f4c8fd7 72 while(i<64) {
4180_1 3:454d1f4c8fd7 73 if(i%16==0) uLCD.cls();
4180_1 3:454d1f4c8fd7 74 uLCD.printf("TxtLine %2D Page %D\n",i%16,i/16 );
4180_1 3:454d1f4c8fd7 75 i++; //16 lines with 18 charaters per line
4180_1 3:454d1f4c8fd7 76 }
4180_1 6:f752accd632c 77 wait(0.5);
4180_1 6:f752accd632c 78 //Bouncing Ball Demo
4180_1 6:f752accd632c 79 int x=50,y=21,vx=1,vy=1, radius=4;
4180_1 4:25a266a74a4c 80 uLCD.background_color(BLACK);
4180_1 4:25a266a74a4c 81 uLCD.cls();
4180_1 6:f752accd632c 82 //draw walls
4180_1 6:f752accd632c 83 uLCD.line(0, 0, 127, 0, WHITE);
4180_1 6:f752accd632c 84 uLCD.line(127, 0, 127, 127, WHITE);
4180_1 6:f752accd632c 85 uLCD.line(127, 127, 0, 127, WHITE);
4180_1 6:f752accd632c 86 uLCD.line(0, 127, 0, 0, WHITE);
4180_1 6:f752accd632c 87 for (int i=0; i<1000; i++) {
4180_1 6:f752accd632c 88 //draw ball
4180_1 6:f752accd632c 89 uLCD.circle(x, y, radius, RED);
4180_1 6:f752accd632c 90 //bounce off edge walls?
4180_1 6:f752accd632c 91 if ((x<=radius+1) || (x>=126-radius)) vx = -vx;
4180_1 6:f752accd632c 92 if ((y<=radius+1) || (y>=126-radius)) vy = -vy;
4180_1 6:f752accd632c 93 //erase old ball location
4180_1 6:f752accd632c 94 uLCD.circle(x, y, radius, BLACK);
4180_1 6:f752accd632c 95 //move ball
4180_1 6:f752accd632c 96 x=x+vx;
4180_1 6:f752accd632c 97 y=y+vy;
4180_1 4:25a266a74a4c 98 }
4180_1 6:f752accd632c 99 wait(1);
4180_1 3:454d1f4c8fd7 100 //draw an image pixel by pixel
4180_1 6:f752accd632c 101 int pixelcolors[50][50];
4180_1 3:454d1f4c8fd7 102 uLCD.background_color(BLACK);
4180_1 3:454d1f4c8fd7 103 uLCD.cls();
4180_1 6:f752accd632c 104 //compute Mandelbrot set image for display
4180_1 3:454d1f4c8fd7 105 //image size in pixels and setup
4180_1 3:454d1f4c8fd7 106 const unsigned ImageHeight=128;
4180_1 3:454d1f4c8fd7 107 const unsigned ImageWidth=128;
4180_1 6:f752accd632c 108 //region to display
4180_1 3:454d1f4c8fd7 109 double MinRe = -0.75104;
4180_1 3:454d1f4c8fd7 110 double MaxRe = -0.7408;
4180_1 3:454d1f4c8fd7 111 double MinIm = 0.10511;
4180_1 3:454d1f4c8fd7 112 double MaxIm = MinIm+(MaxRe-MinRe)*ImageHeight/ImageWidth;
4180_1 3:454d1f4c8fd7 113 double Re_factor = (MaxRe-MinRe)/(ImageWidth-1);
4180_1 3:454d1f4c8fd7 114 double Im_factor = (MaxIm-MinIm)/(ImageHeight-1);
4180_1 3:454d1f4c8fd7 115 unsigned MaxIterations = 4096;
4180_1 3:454d1f4c8fd7 116 for(unsigned y=0; y<ImageHeight; ++y) {
4180_1 3:454d1f4c8fd7 117 double c_im = MaxIm - y*Im_factor;
4180_1 3:454d1f4c8fd7 118 for(unsigned x=0; x<ImageWidth; ++x) {
4180_1 3:454d1f4c8fd7 119 double c_re = MinRe + x*Re_factor;
4180_1 3:454d1f4c8fd7 120 double Z_re = c_re, Z_im = c_im;
4180_1 3:454d1f4c8fd7 121 int niterations=0;
4180_1 3:454d1f4c8fd7 122 for(unsigned n=0; n<MaxIterations; ++n) {
4180_1 3:454d1f4c8fd7 123 double Z_re2 = Z_re*Z_re, Z_im2 = Z_im*Z_im;
4180_1 3:454d1f4c8fd7 124 if(Z_re2 + Z_im2 > 4) {
4180_1 3:454d1f4c8fd7 125 niterations = n;
4180_1 3:454d1f4c8fd7 126 break;
4180_1 3:454d1f4c8fd7 127 }
4180_1 3:454d1f4c8fd7 128 Z_im = 2*Z_re*Z_im + c_im;
4180_1 3:454d1f4c8fd7 129 Z_re = Z_re2 - Z_im2 + c_re;
4180_1 3:454d1f4c8fd7 130 }
4180_1 6:f752accd632c 131 if (niterations!=(MaxIterations-1))
4180_1 6:f752accd632c 132 uLCD.pixel(x,y,((niterations & 0xF00)<<12)+((niterations & 0xF0)<<8)+((niterations & 0x0F)<<4) );
4180_1 3:454d1f4c8fd7 133 }
4180_1 3:454d1f4c8fd7 134 }
4180_1 5:a1ef40ff0f78 135 wait(5);
4180_1 6:f752accd632c 136 // PLASMA wave BLIT animation
4180_1 6:f752accd632c 137 //draw an image using BLIT (Block Image Transfer) fastest way to transfer pixel data
4180_1 5:a1ef40ff0f78 138 uLCD.cls();
4180_1 6:f752accd632c 139 int num_cols=50;
4180_1 6:f752accd632c 140 int num_rows=50;
4180_1 5:a1ef40ff0f78 141 double a,b,c=0.0;
4180_1 5:a1ef40ff0f78 142 while(1) {
4180_1 5:a1ef40ff0f78 143 for (int k=0; k<num_cols; k++) {
4180_1 5:a1ef40ff0f78 144 b= (1+sin(3.14159*k*0.75/(num_cols-1.0)+c))*0.5;
4180_1 5:a1ef40ff0f78 145 for (int i=0; i<num_rows; i++) {
4180_1 5:a1ef40ff0f78 146 a= (1+sin(3.14159*i*0.75/(num_rows-1.0)+c))*0.5;
4180_1 5:a1ef40ff0f78 147 // a and b will be a sine wave output between 0 and 1
4180_1 5:a1ef40ff0f78 148 // sine wave was scaled for nice effect across array
4180_1 5:a1ef40ff0f78 149 // uses a and b to compute pixel colors based on rol and col location in array
4180_1 5:a1ef40ff0f78 150 // also keeps colors at the same brightness level
4180_1 5:a1ef40ff0f78 151 if ((a+b) <.667)
4180_1 6:f752accd632c 152 pixelcolors[i][k] = (255-(int(254.0*((a+b)/0.667)))<<16) | (int(254.0*((a+b)/0.667))<<8) | 0;
4180_1 5:a1ef40ff0f78 153 else if ((a+b)<1.333)
4180_1 6:f752accd632c 154 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));
4180_1 5:a1ef40ff0f78 155 else
4180_1 6:f752accd632c 156 pixelcolors[i][k] = (int(255*((a+b-1.333)/0.667))<<16) | (0<<8) | (255-(int (254.0*((a+b-1.333)/0.667))));
4180_1 5:a1ef40ff0f78 157 }
4180_1 5:a1ef40ff0f78 158 }
4180_1 6:f752accd632c 159 uLCD.BLIT(39, 39, 50, 50, &pixelcolors[0][0]);
4180_1 5:a1ef40ff0f78 160 c = c + 0.0314159*3.0;
4180_1 5:a1ef40ff0f78 161 if (c > 6.2831) c = 0.0;
4180_1 5:a1ef40ff0f78 162 }
4180_1 6:f752accd632c 163 }