% source /home/CS273/cshrc.cs273
This command adds a path to access the 'xdl' command. Some of us have already added this to our path, and for those of you who haven't, it might be a good idea to put this command in your .cshrc file.
To run the downloader itself, give the command
% xdl --hardware-echo
This will bring up the main control panel. If you press the Download Program button, it will bring up a file dialog window, which you can use to select a file to download. The Serial Comm button brings up a terminal emulator window, which can be used to communicate with the board when you're using Hexmon. The Configure button brings up a program configuration window, which you shouldn't need to use if you used the command above to run the downloader.