Martin Sturm / Mbed 2 deprecated Lab3

Dependencies:   mbed

main.cpp@0:c546b51ecf0b, 2011-10-11 (annotated)

Committer:
XkLi
Date:
Tue Oct 11 01:24:18 2011 +0000
Revision:
0:c546b51ecf0b
v1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
XkLi 0:c546b51ecf0b 1 #include "mbed.h"
XkLi 0:c546b51ecf0b 2 #include "SDFileSystem.h"
XkLi 0:c546b51ecf0b 3 #include "NokiaLCD.h"
XkLi 0:c546b51ecf0b 4 #include "myBMP.h"
XkLi 0:c546b51ecf0b 5 #include "mpr121.h"
XkLi 0:c546b51ecf0b 6 #include "jpegutil.h"
XkLi 0:c546b51ecf0b 7 #include <string>
XkLi 0:c546b51ecf0b 8 #include <cctype>
XkLi 0:c546b51ecf0b 9
XkLi 0:c546b51ecf0b 10 SDFileSystem sd(p5, p6, p7, p8, "sd");
XkLi 0:c546b51ecf0b 11 NokiaLCD lcd(p11, p13, p14, p15, NokiaLCD::LCD6610);
XkLi 0:c546b51ecf0b 12 DigitalOut led1(LED1);
XkLi 0:c546b51ecf0b 13 DigitalOut led2(LED2);
XkLi 0:c546b51ecf0b 14 DigitalOut led3(LED3);
XkLi 0:c546b51ecf0b 15 DigitalOut led4(LED4);
XkLi 0:c546b51ecf0b 16 InterruptIn interrupt(p26);
XkLi 0:c546b51ecf0b 17 I2C i2c(p9,p10);
XkLi 0:c546b51ecf0b 18 Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
XkLi 0:c546b51ecf0b 19 Serial pc(USBTX,USBRX);
XkLi 0:c546b51ecf0b 20 vector<string> files;
XkLi 0:c546b51ecf0b 21 string file;
XkLi 0:c546b51ecf0b 22 int selectpos = 1;
XkLi 0:c546b51ecf0b 23 int oldvalue;
XkLi 0:c546b51ecf0b 24 int value;
XkLi 0:c546b51ecf0b 25 bool showingImage = false;
XkLi 0:c546b51ecf0b 26 bool displayImage = false;
XkLi 0:c546b51ecf0b 27
XkLi 0:c546b51ecf0b 28
XkLi 0:c546b51ecf0b 29 string toLower(string in)
XkLi 0:c546b51ecf0b 30 {
XkLi 0:c546b51ecf0b 31 for(int i = 0; i < in.length(); i++)
XkLi 0:c546b51ecf0b 32 {
XkLi 0:c546b51ecf0b 33 in[i] = tolower(in[i]);
XkLi 0:c546b51ecf0b 34 }
XkLi 0:c546b51ecf0b 35 return in;
XkLi 0:c546b51ecf0b 36 }
XkLi 0:c546b51ecf0b 37
XkLi 0:c546b51ecf0b 38 void changepos(int val2,int val1){ //compares the current position with the old one andchanges currsor accordingly.
XkLi 0:c546b51ecf0b 39 //val1 is the lower value ond val2 th higher possibla value
XkLi 0:c546b51ecf0b 40
XkLi 0:c546b51ecf0b 41 if (!showingImage) {
XkLi 0:c546b51ecf0b 42 if (oldvalue==val1) {
XkLi 0:c546b51ecf0b 43 if (selectpos != 1)
XkLi 0:c546b51ecf0b 44 selectpos--;
XkLi 0:c546b51ecf0b 45 // if (selectpos < 1)selectpos = files.size(); // no more raparround
XkLi 0:c546b51ecf0b 46 } else if(oldvalue==val2){
XkLi 0:c546b51ecf0b 47 if (selectpos != files.size())
XkLi 0:c546b51ecf0b 48 selectpos++;
XkLi 0:c546b51ecf0b 49 //if (selectpos > files.size()) selectpos = 1; // no more raparound
XkLi 0:c546b51ecf0b 50 }
XkLi 0:c546b51ecf0b 51 }
XkLi 0:c546b51ecf0b 52 }
XkLi 0:c546b51ecf0b 53
XkLi 0:c546b51ecf0b 54 void fallInterrupt() {
XkLi 0:c546b51ecf0b 55 value=mpr121.read(0x00);
XkLi 0:c546b51ecf0b 56 value +=mpr121.read(0x01)<<8;
XkLi 0:c546b51ecf0b 57 //pc.printf("%d\r\n",value);
XkLi 0:c546b51ecf0b 58 switch (value) {
XkLi 0:c546b51ecf0b 59 case 0: //no button is pressed (good only to execute actions on release)
XkLi 0:c546b51ecf0b 60 switch (oldvalue) { //if not do action according to button realeased.
XkLi 0:c546b51ecf0b 61 case (1<<4):
XkLi 0:c546b51ecf0b 62 if (showingImage) {
XkLi 0:c546b51ecf0b 63 lcd.background(0xFFFFFF);
XkLi 0:c546b51ecf0b 64 lcd.foreground(0xFFFFFF);
XkLi 0:c546b51ecf0b 65 lcd.cls();
XkLi 0:c546b51ecf0b 66 showingImage = false;
XkLi 0:c546b51ecf0b 67 }
XkLi 0:c546b51ecf0b 68 break;
XkLi 0:c546b51ecf0b 69
XkLi 0:c546b51ecf0b 70 case (1<<5):
XkLi 0:c546b51ecf0b 71 if (!showingImage) {
XkLi 0:c546b51ecf0b 72 displayImage = true;
XkLi 0:c546b51ecf0b 73 showingImage = true;
XkLi 0:c546b51ecf0b 74 }
XkLi 0:c546b51ecf0b 75 break;
XkLi 0:c546b51ecf0b 76
XkLi 0:c546b51ecf0b 77 }
XkLi 0:c546b51ecf0b 78 case 1:
XkLi 0:c546b51ecf0b 79 changepos(-1,3); //cannot have a lower value as 0 i no button
XkLi 0:c546b51ecf0b 80 break;
XkLi 0:c546b51ecf0b 81 case 3:
XkLi 0:c546b51ecf0b 82 changepos(1,2);
XkLi 0:c546b51ecf0b 83 break;
XkLi 0:c546b51ecf0b 84 case 2:
XkLi 0:c546b51ecf0b 85 changepos((2+1),(2+4));
XkLi 0:c546b51ecf0b 86 break;
XkLi 0:c546b51ecf0b 87 case (2+4):
XkLi 0:c546b51ecf0b 88 changepos(2,4);
XkLi 0:c546b51ecf0b 89 break;
XkLi 0:c546b51ecf0b 90 case 4:
XkLi 0:c546b51ecf0b 91 changepos((4+2),(4+8));
XkLi 0:c546b51ecf0b 92 break;
XkLi 0:c546b51ecf0b 93 case (4+8):
XkLi 0:c546b51ecf0b 94 changepos(4,8);
XkLi 0:c546b51ecf0b 95 break;
XkLi 0:c546b51ecf0b 96 case 8:
XkLi 0:c546b51ecf0b 97 changepos(4+8,-1); // cannot have a highe boundry
XkLi 0:c546b51ecf0b 98 break;
XkLi 0:c546b51ecf0b 99
XkLi 0:c546b51ecf0b 100 default:
XkLi 0:c546b51ecf0b 101
XkLi 0:c546b51ecf0b 102 break;
XkLi 0:c546b51ecf0b 103 };
XkLi 0:c546b51ecf0b 104
XkLi 0:c546b51ecf0b 105 oldvalue=value;
XkLi 0:c546b51ecf0b 106 }
XkLi 0:c546b51ecf0b 107
XkLi 0:c546b51ecf0b 108 void ls(char *dir)
XkLi 0:c546b51ecf0b 109 {
XkLi 0:c546b51ecf0b 110 DIR *dp;
XkLi 0:c546b51ecf0b 111 struct dirent *dirp;
XkLi 0:c546b51ecf0b 112 dp = opendir(dir);
XkLi 0:c546b51ecf0b 113 while((dirp = readdir(dp)) != NULL)
XkLi 0:c546b51ecf0b 114 {
XkLi 0:c546b51ecf0b 115 files.push_back(string(dirp->d_name));
XkLi 0:c546b51ecf0b 116 }
XkLi 0:c546b51ecf0b 117 }
XkLi 0:c546b51ecf0b 118
XkLi 0:c546b51ecf0b 119 int main() {
XkLi 0:c546b51ecf0b 120 interrupt.fall(&fallInterrupt);
XkLi 0:c546b51ecf0b 121 interrupt.mode(PullUp);
XkLi 0:c546b51ecf0b 122
XkLi 0:c546b51ecf0b 123 lcd.background(0xFFFFFF);
XkLi 0:c546b51ecf0b 124 lcd.foreground(0xFFFFFF);
XkLi 0:c546b51ecf0b 125 lcd.cls();
XkLi 0:c546b51ecf0b 126 ls("/sd");
XkLi 0:c546b51ecf0b 127
XkLi 0:c546b51ecf0b 128 led1 = 1;
XkLi 0:c546b51ecf0b 129
XkLi 0:c546b51ecf0b 130 while(1) {
XkLi 0:c546b51ecf0b 131 int ypos = 1;
XkLi 0:c546b51ecf0b 132 if(displayImage)
XkLi 0:c546b51ecf0b 133 {
XkLi 0:c546b51ecf0b 134 __disable_irq();
XkLi 0:c546b51ecf0b 135 file = files[selectpos - 1];
XkLi 0:c546b51ecf0b 136 string ext = file.substr(file.rfind('.')+1);
XkLi 0:c546b51ecf0b 137 ext = toLower(ext);
XkLi 0:c546b51ecf0b 138 if(!ext.compare("bmp"))
XkLi 0:c546b51ecf0b 139 {
XkLi 0:c546b51ecf0b 140 RGBApixel *Colors = new RGBApixel [2];
XkLi 0:c546b51ecf0b 141 file = "/sd/" + file;
XkLi 0:c546b51ecf0b 142 lcd.background(0x000000);
XkLi 0:c546b51ecf0b 143 lcd.foreground(0x000000);
XkLi 0:c546b51ecf0b 144 lcd.cls();
XkLi 0:c546b51ecf0b 145 ReadBMPFromFile(file.c_str(), Colors, &lcd);
XkLi 0:c546b51ecf0b 146 showingImage = true;
XkLi 0:c546b51ecf0b 147 }
XkLi 0:c546b51ecf0b 148 else if(!ext.compare("jpeg") || !ext.compare("jpg"))
XkLi 0:c546b51ecf0b 149 {
XkLi 0:c546b51ecf0b 150 file = "/sd/" + file;
XkLi 0:c546b51ecf0b 151 lcd.background(0x000000);
XkLi 0:c546b51ecf0b 152 lcd.foreground(0x000000);
XkLi 0:c546b51ecf0b 153 lcd.cls();
XkLi 0:c546b51ecf0b 154 ReadJPEGFromFile(file.c_str(), &lcd);
XkLi 0:c546b51ecf0b 155 showingImage = true;
XkLi 0:c546b51ecf0b 156 }
XkLi 0:c546b51ecf0b 157 else
XkLi 0:c546b51ecf0b 158 {
XkLi 0:c546b51ecf0b 159 showingImage = false;
XkLi 0:c546b51ecf0b 160 }
XkLi 0:c546b51ecf0b 161 displayImage = false;
XkLi 0:c546b51ecf0b 162 __enable_irq();
XkLi 0:c546b51ecf0b 163 }
XkLi 0:c546b51ecf0b 164 if(!showingImage)
XkLi 0:c546b51ecf0b 165 {
XkLi 0:c546b51ecf0b 166 lcd.background(0xFFFFFF);
XkLi 0:c546b51ecf0b 167 lcd.locate(0,ypos);
XkLi 0:c546b51ecf0b 168 for(vector<string>::iterator it=files.begin(); it < files.end(); it++)
XkLi 0:c546b51ecf0b 169 {
XkLi 0:c546b51ecf0b 170 if(ypos == selectpos)
XkLi 0:c546b51ecf0b 171 {
XkLi 0:c546b51ecf0b 172 lcd.foreground(0xFF0000);
XkLi 0:c546b51ecf0b 173 }
XkLi 0:c546b51ecf0b 174 else
XkLi 0:c546b51ecf0b 175 {
XkLi 0:c546b51ecf0b 176 lcd.foreground(0x000000);
XkLi 0:c546b51ecf0b 177 }
XkLi 0:c546b51ecf0b 178 lcd.printf("%s",(*it).c_str());
XkLi 0:c546b51ecf0b 179 ypos++;
XkLi 0:c546b51ecf0b 180 lcd.locate(0,ypos);
XkLi 0:c546b51ecf0b 181 }
XkLi 0:c546b51ecf0b 182 }
XkLi 0:c546b51ecf0b 183 led1 = !led1;
XkLi 0:c546b51ecf0b 184 wait(0.05);
XkLi 0:c546b51ecf0b 185 }
XkLi 0:c546b51ecf0b 186 }