Lpc2000

Yes, with LPC you can tell the source of the startup, but in this 
case the startup is hardware-originated, so I am pretty sure it is 
hardware. You suggest that the processor doesn't clear the proper 
bits for the bootloader to tell?

Guille

--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@...> 
wrote:
>
> At 10:23 AM 2/7/06 +0000, Guillermo Prandi wrote:
> > > Any chance you've triggered a watchdog or some such?
> >
> >Well, yes... the program might have triggered the watchdog but... 
why
> >should it matter after the reset pin being low for half a second?
> 
> Truthfully, I don't know.  I only raise the possibility because the 
User 
> Manual indicates there is an internal flag set by the watchdog so 
that if 
> it is the source of the interrupt the ISP pin is ignored.  If that 
flag is 
> not cleared somehow then any subsequent reset could also ignore the 
> pin.  Off hand I wouldn't expect the length of the reset pulse to 
make any 
> difference on whether it entered ISP mode or not.
> 
> If you have an extra pin I'd set it on startup to indicate the 
startup 
> source.  I seem to remember you can tell that on startup, I hope 
I'm not 
> confusing the LPC with a different processor.
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always 
restrictions,   be 
> they legal, genetic, or physical.  If you don't believe me, try to 
chew a 
> radio signal. "  -- Kelvin Throop, III
> http://www.aeolusdevelopment.com/
>