What is SFTP ?
Arduino Ethernet board and TFTP BootloaderThis is an unfinished TFTP bootloader for the Arduino Ethernet. The developer that was hired to write it never finished it so we are opening it up to the community in the hope that somebody will fix it and make it work.It was originally designed to run on both the Arduino Ethernet board and a regular Arduino with Ethernet Shield.If you intend to work on it, join the Arduino Developers mailing list and let us know.16 July 2011
I was wondering if the TFTP (Trivial File Transfer Protocol) could be built into the Ethernet Arduino's bootloader so that during the loading if a pin was held high or low it would enter TFTP Programming mode which would in essence allow you to program the Arduino via Ethernet, i.e. via the TFTP protocol, something which many Routers and similar network based devices offer.I am unsure on if it would A. be possible or B. be something people would be interested in, but primarily, C. I have no idea how it would be implemented.