**This document has been updated to meet the current required format for the NI Code Exchange. These VIs have only been tested with one specific server (Tftpd32). For quick tests, consider using a ligheweight and easy-to-launch server such as Rebex Tiny SFTP server or Core SFTP mini server. If you need to upload data as well, choose an SFTP server and download/install if yourself. Most of them only allow read-only access. TFTP servers can be found by searching the Internet and several free servers are available. Try one of these publicly accessible SFTP servers. The NetASCII implementation does not handle conversion between different operating systems such as accouting for different EOL characters in a file. The test was successful and I logged on to the main screen of the server. This implementation support binary mode (octet) and handles NetASCII between two machines using the same OS. To test the SolarWinds server, I sent the same file that I sent to the Cisco TFTP server previously to it. A more advanced implementation of this use case is covered by PXE (Preboot eXecution Environment) which includes TFTP. This allows the system to update the application run on the controller by simply updating the files on an easily accesible server location and there is no need to deploy software to the embedded controller. The controller only contains a simple boot loader, and the boot loader retrieves the application to be run using TFTP from a predefined server location. One common application of TFTP is to retrieve the application that will be run on a real-time or embedded system controller from a server. TFTP (Trivial File Transfer Protocl) is a simplified version of FTP and is used to quickly transfer files within a secure environment between networked systems.
This does not contain a TFTP server implementation.
The attached VIs contain a partial implementation of the TFTP protocol for a TFTP client (Put File and Get File functions) and can be run on any LabVIEW target which supports UDP.
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