FreeRTOS+FAT is still in the lab
FreeRTOS+FAT is already in use in commercial products
and we encourage you to try it yourself. Be aware however that
FreeRTOS+FAT was acquired by Real Time Engineers Ltd., and is
still being documented and updated to
ensure it meets our strict quality standards.
Please use the forum for support,
or contact us directly if you have a specific business interest.
Truncates a file to the file's current read/write position. The file
must have previously been opened using ff_fopen()
with the mode string set to "a" or "w".
The file being truncated.
If the file was successfully truncated then zero is returned.
If the file could not be truncated then FF_EOF is returned and the task's
errno is set to indicate the reason. A task
can obtain its errno value using the ff_errno()
void vSampleFunction( char *pcFileName, long lTruncatePosition )
/* Open the file specified by the pcFileName parameter. */
pxFile = ff_fopen( pcFileName, "a" );
/* Move the current read/write position to the position specified by
the lTruncatePosition parameter. */
ff_fseek( pxFile, lTruncatePosition, FF_SEEK_SET );
/* Truncate the file so all data past the current file position is lost. */
if( ff_seteof( pxFile ) != FF_EOF )
/* The truncate failed. */
/* Finished with the file. */
ff_fclose( pxFile );