Works fine for me.

>Petit FatFs is a sub-set of FatFs module for tiny 8-bit microcontrollers. It is written in compliance with ANSI C and completely separated from the disk I/O layer. It can be incorporated into the tiny microcontrollers with limited memory even if the RAM size is less than sector size. Also full featured FAT file system module is available here.

http://elm-chan.org/fsw/ff/00index_e.html

>Features Very small RAM consumption (44 bytes work area + certain stack). Very small code size (2K-4K bytes). FAT12, FAT16 and FAT32. Single volume and Single file. Streaming file read. File write function with some restrictions.

The site does not have a valid SSL certificate. Some browsers will block it.

Works for me?

> Petit FatFs is a sub-set of FatFs module for tiny 8-bit microcontrollers. It is written in compliance with ANSI C and completely separated from the disk I/O layer. It can be incorporated into the tiny microcontrollers with limited memory even if the RAM size is less than sector size.

If it wasn't hugged to death before, it definitely is now. 403 errors for this path and for /

Works fine for me - maybe it has intermittent errors?