"SD.h" works and "tinyFAT" not ...

hi,

i have arduino mega  and shielded tft sd card.

when use "# include <sd.h> works ok ..

but when use "# include <tinyfat.h> can not open card

i tried format on windows fat(predefinition) , fat32

all libraries originals:

tinyfat --> http://henningkarlsen.com/electronics/library.php?id=37

the next code return: "unsupported filesystem"

code: [select]


#include <tinyfat.h>
#include <avr/pgmspace.h>

byte res;
long msstart, msend, mstotal, msavg, mshigh, mslow;

char *verboseerror(byte err)
{
switch (err)
{
case error_mbr_read_error:
return "error reading mbr";
break;
case error_mbr_signature:
return "mbr signature error";
break;
case error_mbr_invalid_fs:
return "unsupported filesystem";
break;
case error_bootsec_read_error:
return "error reading boot sector";
break;
case error_bootsec_signature:
return "boot sector signature error";
break;
default:
return "unknown error";
break;
}
}

void setup() {
 // initialize serial communication @ 115200 baud
 serial.begin(9600);
 serial.println();
 
 // initialize tinyfat
 // might need select lower speed default spispeed_high

 res=file.initfat();
 
 serial.println(res,hex);
 
 if (res!=no_error)
 {
   serial.print("***** error: ");
   serial.println(verboseerror(res));
   while (true) {};
 }

 serial.println("this program measure average time call writeln()-function takes.");
 serial.println();
 serial.println("***** send character start *****");
 while (!serial.available()) {};
 serial.flush();
 
 if (file.exists("spdchk.fil"))
   file.delfile("spdchk.fil");
   
 file.create("spdchk.fil");
 
 res=file.openfile("spdchk.fil", filemode_text_write);
 if (res==no_error)
 {
   mstotal=0;
   mslow=1000000;
   mshigh=0;
   
   serial.print("<");
   for (int cc=0; cc<64; cc++)
   {
     if (((cc+1)%16)!=0)
       serial.print("-");
     else
       serial.print("+");
   }    
   serial.println(">");
   
   serial.print(" ");
   for (int cc=0; cc<1024; cc++)
   {
     msstart=millis();
     file.writeln("speedcheck - random line of text.");
     msend=millis();

     mstotal+=(msend-msstart);
     if ((msend-msstart)<mslow)
       mslow=msend-msstart;
     if ((msend-msstart)>mshigh)
       mshigh=msend-msstart;
       
     if (((cc+1)%256)==0)
       serial.print("+");
     else if (((cc+1)%16)==0)
       serial.print("-");
   }
   file.closefile();
   file.delfile("spdchk.fil");
   serial.println();
   serial.println();
 }
 else
 {
   switch(res)
   {
     case error_another_file_open:
       serial.println("** error: file open...");
       break;
     default:
       serial.print("** error: ");
       serial.println(res, hex);
       break;
   }
 }
 serial.println("sample size : 1024 samples");
 serial.print  ("average time: ");
 serial.print  (mstotal/1024, dec);
 serial.println(" ms");
 serial.print  ("highest time: ");
 serial.print  (mshigh, dec);
 serial.println(" ms");
 serial.print  ("lowest time : ");
 serial.print  (mslow, dec);
 serial.println(" ms");
 serial.println();
 serial.println("***** done... *****");
 
}  

void loop()
{
}

quote

i tried format on windows fat(predefinition) , fat32

curious.

quote

the library supports fat16 formatted sd cards 2gb in size. 4gb fat16 formatted sd cards not work. long filenames not supported. keep filenames compliant old 8.3 standard.

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