Anuj Patel / Mbed 2 deprecated uVGAII_with_printf

Wrappper for VGAII demo by Jim Hamblem that includes a printf function that can print infinitely.

Dependencies:   mbed

main.cpp@0:10b753bd635e, 2011-10-13 (annotated)

Committer:
apatel43
Date:
Thu Oct 13 19:21:27 2011 +0000
Revision:
0:10b753bd635e
Version 1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
apatel43 0:10b753bd635e 1 //
apatel43 0:10b753bd635e 2 // TFT_4DGL is a class to drive 4D Systems TFT touch screens
apatel43 0:10b753bd635e 3 //
apatel43 0:10b753bd635e 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
apatel43 0:10b753bd635e 5 //
apatel43 0:10b753bd635e 6 // TFT_4DGL is free software: you can redistribute it and/or modify
apatel43 0:10b753bd635e 7 // it under the terms of the GNU General Public License as published by
apatel43 0:10b753bd635e 8 // the Free Software Foundation, either version 3 of the License, or
apatel43 0:10b753bd635e 9 // (at your option) any later version.
apatel43 0:10b753bd635e 10 //
apatel43 0:10b753bd635e 11 // TFT_4DGL is distributed in the hope that it will be useful,
apatel43 0:10b753bd635e 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
apatel43 0:10b753bd635e 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
apatel43 0:10b753bd635e 14 // GNU General Public License for more details.
apatel43 0:10b753bd635e 15 //
apatel43 0:10b753bd635e 16 // You should have received a copy of the GNU General Public License
apatel43 0:10b753bd635e 17 // along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
apatel43 0:10b753bd635e 18
apatel43 0:10b753bd635e 19 #include "mbed.h"
apatel43 0:10b753bd635e 20 #include "TFT_4DGL.h"
apatel43 0:10b753bd635e 21 #include <stdarg.h>
apatel43 0:10b753bd635e 22 #include <stdio.h>
apatel43 0:10b753bd635e 23
apatel43 0:10b753bd635e 24 // overwrite 4DGL library screen size settings in TFT_4DGL.h
apatel43 0:10b753bd635e 25 #define SIZE_X 479
apatel43 0:10b753bd635e 26 #define SIZE_Y 639
apatel43 0:10b753bd635e 27 //
apatel43 0:10b753bd635e 28
apatel43 0:10b753bd635e 29 TFT_4DGL ecran(p9,p10,p11); // serial tx, serial rx, reset pin;
apatel43 0:10b753bd635e 30
apatel43 0:10b753bd635e 31
apatel43 0:10b753bd635e 32 int outputrow = 1;
apatel43 0:10b753bd635e 33 int j = 0;
apatel43 0:10b753bd635e 34 char buffer[20480]; //working at 4608
apatel43 0:10b753bd635e 35 char printbuf[256];
apatel43 0:10b753bd635e 36 int linenum=1;
apatel43 0:10b753bd635e 37
apatel43 0:10b753bd635e 38 void myprintf(const char* format, ...) {
apatel43 0:10b753bd635e 39 char dest[256];
apatel43 0:10b753bd635e 40 if(j>80){
apatel43 0:10b753bd635e 41 j=0;
apatel43 0:10b753bd635e 42 }
apatel43 0:10b753bd635e 43 va_list argptr;
apatel43 0:10b753bd635e 44 va_start(argptr, format);
apatel43 0:10b753bd635e 45 vsprintf(dest, format, argptr);
apatel43 0:10b753bd635e 46 va_end(argptr);
apatel43 0:10b753bd635e 47 for ( int i = 0; i < 256; i++) {
apatel43 0:10b753bd635e 48 buffer[256*j+i]= dest[i];
apatel43 0:10b753bd635e 49 }
apatel43 0:10b753bd635e 50 j++;
apatel43 0:10b753bd635e 51 int linenum = j;
apatel43 0:10b753bd635e 52
apatel43 0:10b753bd635e 53 for (int k = 0; k <256; k++) {
apatel43 0:10b753bd635e 54 printbuf[k] = buffer[256*(linenum-1)+k];
apatel43 0:10b753bd635e 55 }
apatel43 0:10b753bd635e 56 ecran.rectangle(0, 8*outputrow, 639, 8*outputrow+31, BLACK);
apatel43 0:10b753bd635e 57 ecran.text_string( dest, 0 , outputrow , FONT_8X8, WHITE);
apatel43 0:10b753bd635e 58 outputrow+= 4;
apatel43 0:10b753bd635e 59 if(outputrow>58){
apatel43 0:10b753bd635e 60 outputrow =1;
apatel43 0:10b753bd635e 61 }
apatel43 0:10b753bd635e 62 }
apatel43 0:10b753bd635e 63
apatel43 0:10b753bd635e 64
apatel43 0:10b753bd635e 65
apatel43 0:10b753bd635e 66 int main() {
apatel43 0:10b753bd635e 67 // char s[500];
apatel43 0:10b753bd635e 68 // int x = 0, y = 0, status, xc = 0, yc = 0;
apatel43 0:10b753bd635e 69
apatel43 0:10b753bd635e 70 ecran.baudrate(115200);
apatel43 0:10b753bd635e 71 // added - Set Display to 640 by 480 mode
apatel43 0:10b753bd635e 72 ecran.display_control(0x0c, 0x01);
apatel43 0:10b753bd635e 73 for(int i=0; i < 300; i++){
apatel43 0:10b753bd635e 74 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);
apatel43 0:10b753bd635e 75 }
apatel43 0:10b753bd635e 76 }
apatel43 0:10b753bd635e 77
apatel43 0:10b753bd635e 78 /*
apatel43 0:10b753bd635e 79 DigitalIn up(p22);
apatel43 0:10b753bd635e 80 DigitalIn down(p21);
apatel43 0:10b753bd635e 81 DigitalOut led1(LED1);
apatel43 0:10b753bd635e 82 DigitalOut led2(LED2);
apatel43 0:10b753bd635e 83 DigitalOut led3(LED3);
apatel43 0:10b753bd635e 84 DigitalOut led4(LED4);
apatel43 0:10b753bd635e 85
apatel43 0:10b753bd635e 86 void cursor() {
apatel43 0:10b753bd635e 87 DigitalIn up(p22);
apatel43 0:10b753bd635e 88 DigitalIn down(p21);
apatel43 0:10b753bd635e 89 DigitalOut led1(LED1);
apatel43 0:10b753bd635e 90 DigitalOut led2(LED2);
apatel43 0:10b753bd635e 91 DigitalOut led3(LED3);
apatel43 0:10b753bd635e 92 DigitalOut led4(LED4);
apatel43 0:10b753bd635e 93 while (1) {
apatel43 0:10b753bd635e 94 up.mode(PullUp);
apatel43 0:10b753bd635e 95 down.mode(PullUp);
apatel43 0:10b753bd635e 96 if (!up) {
apatel43 0:10b753bd635e 97 led1 = 1;
apatel43 0:10b753bd635e 98 if (linenum>0) {
apatel43 0:10b753bd635e 99 linenum--;
apatel43 0:10b753bd635e 100 for (int k = 0; k <256; k++) {
apatel43 0:10b753bd635e 101 printbuf[k] = buffer[256*(linenum-1)+k];
apatel43 0:10b753bd635e 102 }
apatel43 0:10b753bd635e 103 ecran.rectangle(0, 0, 639, 59, BLACK);
apatel43 0:10b753bd635e 104 ecran.text_string( printbuf, 0 , 1 , FONT_8X8, WHITE);
apatel43 0:10b753bd635e 105 }
apatel43 0:10b753bd635e 106 }
apatel43 0:10b753bd635e 107 if (up) {
apatel43 0:10b753bd635e 108 led3 = 1;
apatel43 0:10b753bd635e 109 led1=0;
apatel43 0:10b753bd635e 110 }
apatel43 0:10b753bd635e 111 if (!down) {
apatel43 0:10b753bd635e 112 led2 = 1;
apatel43 0:10b753bd635e 113 if (linenum<j) {
apatel43 0:10b753bd635e 114 linenum++;
apatel43 0:10b753bd635e 115 for (int k = 0; k <256; k++) {
apatel43 0:10b753bd635e 116 printbuf[k] = buffer[256*(linenum-1)+k];
apatel43 0:10b753bd635e 117 }
apatel43 0:10b753bd635e 118 ecran.rectangle(0, 0, 639, 59, BLACK);
apatel43 0:10b753bd635e 119 ecran.text_string( printbuf, 0 , 1 , FONT_8X8, WHITE);
apatel43 0:10b753bd635e 120 }
apatel43 0:10b753bd635e 121 }
apatel43 0:10b753bd635e 122 if (down) {
apatel43 0:10b753bd635e 123 led4 = 1;
apatel43 0:10b753bd635e 124 led2=0;
apatel43 0:10b753bd635e 125 }
apatel43 0:10b753bd635e 126 }
apatel43 0:10b753bd635e 127 }
apatel43 0:10b753bd635e 128 */