Diff: main.cpp

Revision:

2:e0071aaa133c

Parent:

0:bdbd3d6fc5d5

--- a/main.cpp	Tue May 16 05:18:55 2017 +0000
+++ b/main.cpp	Mon Dec 25 17:35:11 2017 +0000
@@ -1,19 +1,139 @@
 #include "mbed.h"
 #include "SDFileSystem.h"
+#include <string>
+#include <vector>\
+#include <stdio.h>
+#include <iostream>
  
-SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board
+ 
+SDFileSystem sd(D11, D12, D13, D10, "sd"); // the pinout on the mbed Cool Components workshop board
+ 
+//.....assumes SDFileSystem is setup in earlier code for device "/sd"
+ 
+vector<string> filenames;    //filenames are stored in a vector string
+vector<string> filedata;      //file data is stored in a vector string
+///////////////////////////////////////////////////////////////////////////////
+using namespace std;
+typedef unsigned char BYTE;
+
+long getFileSize(FILE *file)
+{
+    long lCurPos,lEndPos;
+    lCurPos = ftell(file);
+    fseek(file,lCurPos, 0);
+    return lEndPos;    
+}
+//////////////////////////////////////////////////////////////////////////////
+
+
  
+void read_file_names(char *dir)
+{
+    DIR *dp;
+    struct dirent *dirp;
+    dp = opendir(dir);
+  //read all directory and file names in current directory into filename vector
+    while((dirp = readdir(dp)) != NULL) {
+        filenames.push_back(string(dirp->d_name));  
+    }
+    closedir(dp);
+}
+void read_file_data (char *dir)
+{
+    DIR *dp;
+    struct dirent *dirp;
+    dp = opendir(dir);
+  //read all directory and file names in current directory into filename vector
+    while((dirp = readdir(dp)) != NULL) {
+        filenames.push_back(string(dirp->d_name));  
+    }
+    closedir(dp);
+}
 int main() {
     printf("Hello World!\n");   
  
-    mkdir("/sd/mydir", 0777);
+    
     
-    FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
+    FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");                                                                                                 
     if(fp == NULL) {
         error("Could not open file for write\n");
     }
     fprintf(fp, "Hello fun SD Card World!");
+    
     fclose(fp); 
  
     printf("Goodbye World!\n");
-}
+                                                                                                                             
+    printf("Reading files!\n");
+    
+    read_file_names("/sd");
+        //read_file_data("/sd/sky.raw");
+    
+     // print filename strings from vector using an iterator
+ for(vector<string>::iterator it=filenames.begin(); it < filenames.end(); it++)  
+  {
+    printf("%s\n\r",(*it).c_str());
+  }
+ //////////////////////////////////////////////////////////////////////////////
+ const char *filePath = "/sd/sky.raw";
+BYTE *fileBuf;
+FILE *file = NULL;
+
+if ((file = fopen(filePath, "rb"))== NULL)
+    {
+        //cout << "Could not open the file" << end1 ;
+        printf("Could not open the file");
+    
+    }
+else
+{
+ 
+       // cout << "opening file successfull" << end1 ;
+        printf("opening file successfull");
+ }
+ 
+ long fileSize = getFileSize(file);
+ 
+ fileBuf = new BYTE[fileSize];
+ 
+ fread(fileBuf, fileSize, 1, file);
+ 
+ for(int i=0; i<100; i++)
+ {
+    printf("%X", fileBuf[i]);
+     }
+
+cin.get();
+delete[]fileBuf;
+fclose(file);
+/////////////////////////////////////////////////////////////////////////////////
+
+
+
+/////////////////////////////////////////////////////////////////////////////////
+
+
+
+  fp = fopen("/sd/mydir/sdtest.txt", "r+");
+    if(fp == NULL){
+        printf("error in opening file");
+    }
+    
+//    fread(fp, buff, 10, readBuff);
+    char line[100]; /* Line buffer */
+//    FRESULT fr;     /* FatFs return code */
+    /* Read all lines and display it */
+    while (fgets(line, sizeof line, fp)) {
+        printf(line);
+    }
+    
+    fscanf(fp, line, sizeof line);
+    
+    printf("Reading line %s", line);
+    }
+    
+
+
+
+
+