main.cpp

00001 //
00002 // TFT_4DGL is a class to drive 4D Systems TFT touch screens
00003 //
00004 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
00005 //
00006 // TFT_4DGL is free software: you can redistribute it and/or modify
00007 // it under the terms of the GNU General Public License as published by
00008 // the Free Software Foundation, either version 3 of the License, or
00009 // (at your option) any later version.
00010 //
00011 // TFT_4DGL is distributed in the hope that it will be useful,
00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 // GNU General Public License for more details.
00015 //
00016 // You should have received a copy of the GNU General Public License
00017 // along with TFT_4DGL.  If not, see <http://www.gnu.org/licenses/>.
00018 
00019 #include "mbed.h"
00020 #include "TFT_4DGL.h"
00021 #include <stdarg.h>
00022 #include <stdio.h>
00023 
00024 // overwrite 4DGL library screen size settings in TFT_4DGL.h
00025 #define SIZE_X  479
00026 #define SIZE_Y  639
00027 //
00028 
00029 TFT_4DGL ecran(p9,p10,p11); // serial tx, serial rx, reset pin;
00030 
00031 
00032 int outputrow = 1;
00033 int j = 0;
00034 char buffer[20480]; //working at 4608
00035 char printbuf[256];
00036 int linenum=1;
00037 
00038 void myprintf(const char* format, ...) {
00039     char dest[256];
00040     if(j>80){
00041         j=0;
00042     }
00043     va_list argptr;
00044     va_start(argptr, format);
00045     vsprintf(dest, format, argptr);
00046     va_end(argptr);
00047     for ( int i = 0; i < 256; i++) {
00048         buffer[256*j+i]= dest[i];
00049     }
00050     j++;
00051     int linenum = j;
00052 
00053     for (int k = 0; k <256; k++) {
00054         printbuf[k] = buffer[256*(linenum-1)+k];
00055     }
00056     ecran.rectangle(0, 8*outputrow, 639, 8*outputrow+31, BLACK);
00057     ecran.text_string( dest, 0 , outputrow , FONT_8X8, WHITE);
00058     outputrow+= 4;
00059     if(outputrow>58){
00060         outputrow =1;
00061     }
00062 }
00063 
00064 
00065 
00066 int main() {
00067 //    char s[500];
00068 //    int x = 0, y = 0, status, xc = 0, yc = 0;
00069 
00070     ecran.baudrate(115200);
00071 // added - Set Display to 640 by 480 mode
00072     ecran.display_control(0x0c, 0x01);
00073     for(int i=0; i < 300; i++){
00074         myprintf("This is line %i.Because printing to through the vga is slow, any prints off the screen will wrap around to the top of the screen and override the the existing text on the screen 1 line at a time. Therefore, the user has the ability to print infinitely.", i);
00075     }
00076 }
00077 
00078 /*
00079 DigitalIn up(p22);
00080 DigitalIn down(p21);
00081 DigitalOut led1(LED1);
00082 DigitalOut led2(LED2);
00083 DigitalOut led3(LED3);
00084 DigitalOut led4(LED4);
00085 
00086 void cursor() {
00087     DigitalIn up(p22);
00088     DigitalIn down(p21);
00089     DigitalOut led1(LED1);
00090     DigitalOut led2(LED2);
00091     DigitalOut led3(LED3);
00092     DigitalOut led4(LED4);
00093     while (1) {
00094         up.mode(PullUp);
00095         down.mode(PullUp);
00096         if (!up) {
00097             led1 = 1;
00098             if (linenum>0) {
00099                 linenum--;
00100                 for (int k = 0; k <256; k++) {
00101                     printbuf[k] = buffer[256*(linenum-1)+k];
00102                 }
00103                 ecran.rectangle(0, 0, 639, 59, BLACK);
00104                 ecran.text_string( printbuf, 0 , 1 , FONT_8X8, WHITE);
00105             }
00106         }
00107         if (up) {
00108             led3 = 1;
00109             led1=0;
00110         }
00111         if (!down) {
00112             led2 = 1;
00113             if (linenum<j) {
00114                 linenum++;
00115                 for (int k = 0; k <256; k++) {
00116                     printbuf[k] = buffer[256*(linenum-1)+k];
00117                 }
00118                 ecran.rectangle(0, 0, 639, 59, BLACK);
00119                 ecran.text_string( printbuf, 0 , 1 , FONT_8X8, WHITE);
00120             }
00121         }
00122         if (down) {
00123             led4 = 1;
00124             led2=0;
00125         }
00126     }
00127 }
00128 */