int ff_fgetc( FF_FILE * pxStream );
Reads a single byte from an open file in the embedded FAT file system.
The read/write position is incremented by one.
Returning a char in an int may not seem optimal, but the ff_fgetc()
prototype conforms to the standard and expected stdio fgetc() function prototype.
A pointer to the file from which the data is being read.
This is the same pointer that was returned from the call
to ff_fopen() used to originally open the file.
On success the byte read from the file system is returned. If a byte
could not be read from the file because the read position is already at
the end of the file then FF_EOF is returned.
void vSampleFunction( char *pcFileName, char *pcBuffer, int32_t lBufferSize )
pxFile = ff_fopen( pcFileName, “r” );
for( lBytesRead = 0; lBytesRead < lBufferSize; lBytesRead++ )
iReturnedByte = ff_fgetc( pxFile );
if( iReturnedByte == FF_EOF )
pcBuffer[ lBytesRead ] = ( char ) iReturnedByte;
ff_fclose( pxFile );
Example use of the ff_fgetc() API function
Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.