![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
uLCD
Dependencies: 4DGL-uLCD-SE mbed
Fork of uLCD144G2_demo by
main.cpp
- Committer:
- 4180_1
- Date:
- 2013-11-20
- Revision:
- 5:a1ef40ff0f78
- Parent:
- 4:25a266a74a4c
- Child:
- 6:f752accd632c
File content as of revision 5:a1ef40ff0f78:
// // TFT_4DGL is a class to drive 4D Systems TFT touch screens // // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr> // // TFT_4DGL is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // TFT_4DGL is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>. #include "mbed.h" #include "uLCD_4DGL.h" #define SIZE_X 128 #define SIZE_Y 128 // uLCD_4DGL uLCD(p9,p10,p11); // serial tx, serial rx, reset pin; int main() { int pixelcolors[40][40]; // 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.baudrate(256000); //jack up baud rate to max //demo graphics uLCD.background_color(DGREY); uLCD.circle(60, 50, 30, 0xFF00FF); uLCD.triangle(120, 100, 40, 40, 10, 100, 0x0000FF); uLCD.line(0, 0, 80, 60, 0xFF0000); uLCD.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_char('B', 9, 8, BLACK); uLCD.text_char('I',10, 8, BLACK); uLCD.text_char('G',11, 8, BLACK); uLCD.text_string("This is a test of string", 1, 4, FONT_7X8, WHITE); wait(2); // printf text only 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 } //draw an image using BLIT (Block Image Transfer) fastest way to transfer pixel data uLCD.background_color(BLACK); uLCD.cls(); for(int i=0; i<40; i++) { for(int k=0; k<40; k++) { pixelcolors[i][k] = RED; } } uLCD.BLIT(50, 50, 40, 40, &pixelcolors[0][0]); wait(5); //draw an image pixel by pixel uLCD.background_color(BLACK); uLCD.cls(); //compute Mandelbrot image for display //image size in pixels and setup const unsigned ImageHeight=128; const unsigned ImageWidth=128; 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 = 4096; 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; bool isInside = true; 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; isInside = false; break; } Z_im = 2*Z_re*Z_im + c_im; Z_re = Z_re2 - Z_im2 + c_re; } if(isInside==false) uLCD.pixel(x,y,((niterations & 0xF00)<<12)+((niterations & 0xF0)<<8)+((niterations & 0x0F)<<4) ); } } wait(5); // PLASMA wave BLIT animation uLCD.cls(); int num_cols=40; int num_rows=40; double a,b,c=0.0; while(1) { 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(240.0*((a+b)/0.667)))<<16) | (int(240.0*((a+b)/0.667))<<8) | 0; else if ((a+b)<1.333) pixelcolors[i][k] = (0 <<16) | (255-(int (240.0*((a+b-0.667)/0.667)))<<8) | int(240.0*((a+b-0.667)/0.667)); else pixelcolors[i][k] = (int(255*((a+b-1.333)/0.667))<<16) | (0<<8) | (255-(int (240.0*((a+b-1.333)/0.667)))); } } uLCD.BLIT(50, 50, 40, 40, &pixelcolors[0][0]); c = c + 0.0314159*3.0; if (c > 6.2831) c = 0.0; } }