[FreeRTOS+FAT Standard API Reference]
int ff_chdir( const char *pcDirectoryName );
Change the current working directory in the embedded FAT file system.
A pointer to a standard null terminated C string that holds
the name of the directory to make the current working
directory. The string can include a relative path.
If the current working directory was changed successfully then zero is returned.
void vExampleFunction( void )
/* Create a sub directory called subfolder. */
ff_mkdir( “subfolder” );
/* Create a in subfolder called sub1. */
ff_mkdir( “subfolder/sub1” );
/* Make subfolder/sub1 the current working directory. */
ff_chdir( “subfolder/sub1” );
/* Make the route directory the current working directory again. This could
also have used ff_chdir( “/” ); */
ff_chdir( “../..” );
Example use of the ff_chdir() API function to open or create a file