Printf has just entirely failed to do anything

[Mark McLeod]

Originally Posted by JBotAlan

EDIT: Is that what the new master code was released for--a fix in printf? I knew there was new code out there but I don't remember ever updating. I even have the binary on my machine right now, I just need to upload it.

No such luck.
The master code revisions usually are just to match changes in the field control software. v11 was released to fix a random twitch in the pwm outputs for Victors, but nothing that affects the behavior of our User code. The Master version won't affect your printf.
I dumped v11 into my test controller just to eliminate that as a potential cause, and your code still works fine.

Your code is small enough to fit and run on the older PIC-based controllers, so the IFI_Loader version isn't a likely issue. But if you get a Vex kit as a present you'll be able to test your code at home!

I'd start with a close look at the simple solutions.

When you get back to the robot after the holidays double check that you're downloading the .hex file you think you are. I notice you're putting the .hex file in a different directory than the source code (C:\old_'07_Code), so check the date on the file IFI_Loader is pointing to and verify it's new.

Double check your C18 version (2.4). I'm sure you have the current version, but verify there aren't older versions or the Vex version conflicting.

What's the history of the PC you're using? Has it been used for several years? Has MPLAB/C18/etc. been reinstalled around the time your troubles began?