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fatfs v0.07e Nov 03,2009:

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- Separated out configuration options from ff.h to ffconf.h.
- Added a configuration option, _LFN_UNICODE.
- Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
- Fixed name matching error on the 13 char boundary.
- Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
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savelij13 committed 2025-09-11 09:36:45 +03:00
1 parent 25f499b847
commit e6cd91ca0b
76 files changed
+918 -636
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doc/en/open.html
+24 -19
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@@ -26,7 +26,7 @@ FRESULT f_open (
<h4>Parameters</h4>
<dl class="par">
<dt>FileObject</dt>
<dd>Pointer to the file object structure to be created. After the f_open funciton succeeded, the file can be accessed with the file object structure until it is closed.</dd>
<dd>Pointer to the file object structure to be created.</dd>
<dt>FileName</dt>
<dd>Pointer to a null-terminated string that specifies the <a href="filename.html">file name</a> to create or open.</dd>
<dt>ModeFlags</dt>
@@ -36,7 +36,7 @@ FRESULT f_open (
<tr><td>FA_READ</td><td>Specifies read access to the object. Data can be read from the file.<br>Combine with FA_WRITE for read-write access.</td></tr>
<tr><td>FA_WRITE</td><td>Specifies write access to the object. Data can be written to the file.<br>Combine with FA_READ for read-write access.</td></tr>
<tr><td>FA_OPEN_EXISTING</td><td>Opens the file. The function fails if the file is not existing. (Default)</td></tr>
<tr><td>FA_OPEN_ALWAYS</td><td>Opens the file, if it is existing. If not, the function creates the new file.</td></tr>
<tr><td>FA_OPEN_ALWAYS</td><td>Opens the file, if it is existing. If not, a new file is created.</td></tr>
<tr><td>FA_CREATE_NEW</td><td>Creates a new file. The function fails if the file is already existing.</td></tr>
<tr><td>FA_CREATE_ALWAYS</td><td>Creates a new file. If the file is existing, it is truncated and overwritten.</td></tr>
</table>
@@ -76,16 +76,21 @@ FRESULT f_open (
<dt>FR_NOT_ENABLED</dt>
<dd>The logical drive has no work area.</dd>
<dt>FR_NO_FILESYSTEM</dt>
<dd>There is no valid FAT partition on the disk.</dd>
<dd>There is no valid FAT volume on the disk.</dd>
</dl>
</div>
<div class="para">
<h4>Description</h4>
<p>The created file object is used for subsequent calls to refer to the file. When close an open file object, use <a href="close.html">f_close</a> function. If the modified file is not closed, the file may be collapsed.</p>
<p>A file object is created when the function succeeded. The file object is used for subsequent read/write functions to refer to the file. When close an open file object, use <a href="close.html">f_close</a> function. If the modified file is not closed, the file may be collapsed.</p>
<p>Before using any file function, a work area (file system object) must be given to the logical drive with <a href="mount.html">f_mount</a> function. All file functions can work after this procedure.</p>
<p>The mode flags, <tt>FA_WRITE, FA_CREATE_ALWAYS, FA_CREATE_NEW, FA_OPEN_ALWAYS</tt>, are not available in read-only configuration.</p>
</div>
<div class="para">
<h4>QuickInfo</h4>
<p>Always available. The mode flags, <tt>FA_WRITE, FA_CREATE_ALWAYS, FA_CREATE_NEW, FA_OPEN_ALWAYS</tt>, are not available when <tt>_FS_READONLY == 1</tt>.</p>
</div>
@@ -94,38 +99,38 @@ FRESULT f_open (
<pre>
void main (void)
{
FATFS fs[2]; // Work area (file system object) for logical drives
FIL fsrc, fdst; // file objects
BYTE buffer[4096]; // file copy buffer
FRESULT res; // FatFs function common result code
UINT br, bw; // File R/W count
FATFS fs[2]; /* Work area (file system object) for logical drives */
FIL fsrc, fdst; /* file objects */
BYTE buffer[4096]; /* file copy buffer */
FRESULT res; /* FatFs function common result code */
UINT br, bw; /* File R/W count */
// Register work area for logical drives
/* Register work area for logical drives */
f_mount(0, &amp;fs[0]);
f_mount(1, &amp;fs[1]);
// Open source file on the drive 1
/* Open source file on the drive 1 */
res = f_open(&amp;fsrc, "1:srcfile.dat", FA_OPEN_EXISTING | FA_READ);
if (res) die(res);
// Create destination file on the drive 0
/* Create destination file on the drive 0 */
res = f_open(&amp;fdst, "0:dstfile.dat", FA_CREATE_ALWAYS | FA_WRITE);
if (res) die(res);
// Copy source to destination
/* Copy source to destination */
for (;;) {
res = f_read(&amp;fsrc, buffer, sizeof(buffer), &amp;br);
if (res || br == 0) break; // error or eof
if (res || br == 0) break; /* error or eof */
res = f_write(&amp;fdst, buffer, br, &amp;bw);
if (res || bw &lt; br) break; // error or disk full
if (res || bw &lt; br) break; /* error or disk full */
}
// Close all files
/* Close open files */
f_close(&amp;fsrc);
f_close(&amp;fdst);
// Unregister work area before discard it
/* Unregister work area prior to discard it */
f_mount(0, NULL);
f_mount(1, NULL);
}
@@ -134,7 +139,7 @@ void main (void)
<div class="para">
<h4>References</h4>
<h4>See Also</h4>
<p><tt><a href="read.html">f_read</a>, <a href="write.html">f_write</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a>, <a href="sfatfs.html">FATFS</a></tt></p>
</div>