#include <Fat16.h>
#include <Fat16util.h> // use functions to print strings from flash memory

const uint8_t CHIP_SELECT = SS;  // SD chip select pin.

SdCard card;
Fat16 file;

long timeStamp;
//char logName[];
char logName[] = "WRITE00.TXT";
char dataString [] = "testtest";

void setup(void) {
  
  Serial.begin(115200);
  Serial.println();
  PgmPrintln("Type any character to start");
  while (!Serial.available());
  
  card.begin(CHIP_SELECT, SPI_FULL_SPEED);  // initialize the SD card
  Fat16::init(&card);       // initialize a FAT16 volume

  for (uint8_t i = 0; i < 100; i++) {
    logName[5] = i/10 + '0';
    logName[6] = i%10 + '0';
    // O_CREAT - create the file if it does not exist
    // O_EXCL - fail if the file exists
    // O_WRITE - open for write
      
   if (file.open(logName, O_CREAT | O_EXCL | O_WRITE)) break;
   } 
 
  PgmPrint("Writing to: ");
  Serial.println(logName);
  Serial.println();

  file.print(dataString);
  file.println();   


timeStamp = micros();   

}

void loop(void) {
  
  file.print(timeStamp);
  file.println();
  file.sync();

  timeStamp = micros(); 

}