LFN create/write about sdfat HOT 5 CLOSED

Nevermind looks like I figured it out. Using SdFile::open() instead of SdFat::open() lets my create my 18 character alphanumeric file.

from sdfat.

You should be able to create a long file name for write like this:

myFile = SD.open("test long name.txt", FILE_WRITE);

Where SD is declared like this:

SdFat SD;

from sdfat.

FYI that does not work for me. No file is created unless the filename is 8.3 compliant. What did work was SdFile::open() instead of SdFat::open() :

SdFat SD;
SdFile myfile;
SD.begin(SD_CS);
myfile.open("123456789012345678.bin", O_RDWR | O_CREAT) ;

from sdfat.

I downloaded the current zip for this repository.

I ran this program. It printed "yes". I found the file 123456789012345678.bin on the SD.

#include <SPI.h>
#include <SdFat.h>
#define SD_CS_PIN 10

SdFat SD;

File myFile;

void setup() {
  Serial.begin(9600);
  SD.begin(SD_CS_PIN);
  myFile = SD.open("123456789012345678.bin", O_RDWR | O_CREAT);
  myFile.close();
  if (SD.exists("123456789012345678.bin")) {
    Serial.println("yes");
  } else {
    Serial.println("no");
  }
}

void loop() {
}

from sdfat.

Oops. I was using FILE_WRITE, not O_RDWR | O_CREAT, with SD.open().

On Tue, Aug 4, 2015 at 12:05 PM, Bill Greiman [email protected]
wrote:

I downloaded the current zip for this repository.

I ran this program. It printed "yes". I found the file
123456789012345678.bin on the SD.

#include <SPI.h>
#include <SdFat.h>
#define SD_CS_PIN 10

SdFat SD;

File myFile;

void setup() {
Serial.begin(9600);
SD.begin(SD_CS_PIN);
myFile = SD.open("123456789012345678.bin", O_RDWR | O_CREAT);
myFile.close();
if (SD.exists("123456789012345678.bin")) {
Serial.println("yes");
} else {
Serial.println("no");
}
}

void loop() {
}

—
Reply to this email directly or view it on GitHub
#17 (comment).

from sdfat.