I've read through the CCS bootloader examples ex_bootloader.c and ex_bootload.c and I can understand the program flow. Where I get confused is if I use interrupts in my main program. What happens with them? Do these lines in ex_bootloader.c automatically "take care" of any interrupts I use in my main program so that the interrupts will "fire" normally without me having to do any #org-ing or anything out of the ordinary?
Will these two interrupts "fire" when serial data is received by the UART and when timer 0 rolls over? Do I require anything more to assure that the interrupts don't get "lost"?
dbotkin
Joined: 08 Sep 2003 Posts: 197 Location: Omaha NE USA
Posted: Tue Dec 21, 2010 4:21 pm
Yep -- the bootloader relocates your ISR code to its new location and everything works as normal. I'm using a USB bootloader on one project, and a heavily customized one in another to load firmware fro a USB drive (via VNC1L chip). You pretty much never even know it's there.
newguy
Joined: 24 Jun 2004 Posts: 1903
Posted: Thu Jan 06, 2011 4:53 pm
Finally got around to this and you're right - very simple & transparent - just write a program like you would normally do, but include the bootloader header file.
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