Things having been a bit slow on the revenue-work front, I've been doing some work on AGROS - the current focus is the configuration program, without which it's highly awkward to use AGROS in projects (basically, every project's a code fork, and I keep having to merge bugfixes and upgrades from the radar project back into the main source tree).
Other topics to be addressed as time and attention span allow are USB, CANbus, upgraded self-test system, and TCP/IP networking.
The thought of implementing a TCP stack from scratch sent me looking for a college textbook. I have vague recollections of the Tanenbaum networking book being a slim hardback volume with a high usefulness density. And yet... I can't seem to find it. Maybe I misplaced it temporarily; maybe it was borrowed by a co-worker, many years ago, at a company that then went out of business before I remembered to retrieve my book. Maybe it's in a pile of stuff that came home from the office and that I haven't sorted out yet.
Whatever... it might be worth buying a new copy. Check Amazon. Marked down to $88??? Yipe! Oh, and it's up to the fourth edition... and 900 pages.
I wonder if the small book is still in there, struggling to get out.
Oh, well. Maybe I'll spend a bit of time haunting used book stores.