One of the best places to get information is the documentation! Check out http://www.xmos.com/support/documentation for a comprehensive list of our currently published material.
Some highlights:
Programming XC on XMOS Devices - A good introduction to XC which has nice ways of accessing IO, channels and the XCore's parallelism.
Tools tutorials for the XTA and other parts of the tools (XBURN, command line tools etc)
Also, there is a lot of information on XMOS Linkers - give your query and quick search here and see if the question has already been answered (note, the forum search is harder to find, but better than the main site search).
Good luck!
Paul
On two occasions I have been asked, 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.
