main.cpp

00001 #include "mbed.h"
00002 #include "SDFileSystem.h"
00003 #include <string>
00004 #include <vector>\
00005 #include <stdio.h>
00006 #include <iostream>
00007  
00008  
00009 SDFileSystem sd(D11, D12, D13, D10, "sd"); // the pinout on the mbed Cool Components workshop board
00010  
00011 //.....assumes SDFileSystem is setup in earlier code for device "/sd"
00012  
00013 vector<string> filenames;    //filenames are stored in a vector string
00014 vector<string> filedata;      //file data is stored in a vector string
00015 ///////////////////////////////////////////////////////////////////////////////
00016 using namespace std;
00017 typedef unsigned char BYTE;
00018 
00019 long getFileSize(FILE *file)
00020 {
00021     long lCurPos,lEndPos;
00022     lCurPos = ftell(file);
00023     fseek(file,lCurPos, 0);
00024     return lEndPos;    
00025 }
00026 //////////////////////////////////////////////////////////////////////////////
00027 
00028 
00029  
00030 void read_file_names(char *dir)
00031 {
00032     DIR *dp;
00033     struct dirent *dirp;
00034     dp = opendir(dir);
00035   //read all directory and file names in current directory into filename vector
00036     while((dirp = readdir(dp)) != NULL) {
00037         filenames.push_back(string(dirp->d_name));  
00038     }
00039     closedir(dp);
00040 }
00041 void read_file_data (char *dir)
00042 {
00043     DIR *dp;
00044     struct dirent *dirp;
00045     dp = opendir(dir);
00046   //read all directory and file names in current directory into filename vector
00047     while((dirp = readdir(dp)) != NULL) {
00048         filenames.push_back(string(dirp->d_name));  
00049     }
00050     closedir(dp);
00051 }
00052 int main() {
00053     printf("Hello World!\n");   
00054  
00055     
00056     
00057     FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");                                                                                                 
00058     if(fp == NULL) {
00059         error("Could not open file for write\n");
00060     }
00061     fprintf(fp, "Hello fun SD Card World!");
00062     
00063     fclose(fp); 
00064  
00065     printf("Goodbye World!\n");
00066                                                                                                                              
00067     printf("Reading files!\n");
00068     
00069     read_file_names("/sd");
00070         //read_file_data("/sd/sky.raw");
00071     
00072      // print filename strings from vector using an iterator
00073  for(vector<string>::iterator it=filenames.begin(); it < filenames.end(); it++)  
00074   {
00075     printf("%s\n\r",(*it).c_str());
00076   }
00077  //////////////////////////////////////////////////////////////////////////////
00078  const char *filePath = "/sd/sky.raw";
00079 BYTE *fileBuf;
00080 FILE *file = NULL;
00081 
00082 if ((file = fopen(filePath, "rb"))== NULL)
00083     {
00084         //cout << "Could not open the file" << end1 ;
00085         printf("Could not open the file");
00086     
00087     }
00088 else
00089 {
00090  
00091        // cout << "opening file successfull" << end1 ;
00092         printf("opening file successfull");
00093  }
00094  
00095  long fileSize = getFileSize(file);
00096  
00097  fileBuf = new BYTE[fileSize];
00098  
00099  fread(fileBuf, fileSize, 1, file);
00100  
00101  for(int i=0; i<100; i++)
00102  {
00103     printf("%X", fileBuf[i]);
00104      }
00105 
00106 cin.get();
00107 delete[]fileBuf;
00108 fclose(file);
00109 /////////////////////////////////////////////////////////////////////////////////
00110 
00111 
00112 
00113 /////////////////////////////////////////////////////////////////////////////////
00114 
00115 
00116 
00117   fp = fopen("/sd/mydir/sdtest.txt", "r+");
00118     if(fp == NULL){
00119         printf("error in opening file");
00120     }
00121     
00122 //    fread(fp, buff, 10, readBuff);
00123     char line[100]; /* Line buffer */
00124 //    FRESULT fr;     /* FatFs return code */
00125     /* Read all lines and display it */
00126     while (fgets(line, sizeof line, fp)) {
00127         printf(line);
00128     }
00129     
00130     fscanf(fp, line, sizeof line);
00131     
00132     printf("Reading line %s", line);
00133     }
00134     
00135 
00136 
00137 
00138 
00139