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Lpc2000

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Message

Re: Bootloader not always invoked after reset with P0.14 low

2006-02-26 by Guillermo Prandi

OK. I'll run your code. What is exactly what you want me to report 
about it? Whether it can call the bootloader without a power-on reset?

Guille

--- In lpc2000@yahoogroups.com, Jayasooriah <jayasooriah@...> wrote:
>
> Hi Guile,
> 
> I may be misunderstanding the problem.
> 
> You made the comment:
> 
> >It looks like this behavior is 'by design' so there is no other 
workaround 
> >than switching off the unit.
> 
> Philips followed up:
> 
> >Even clearing of watchdog flag in user application may not help 
(if 
> >timeout is too small) because the bootloader runs before 
application.
> 
> For purposes of ruling out watchdog issues in problem I am looking 
into, I 
> want to recreate the above watchdog problem.
> 
> My sample code sets up the watchdog to trigger in minimum time, and 
does 
> nothing but wait for the watchdog to trigger.
> 
> In had no problems getting back to ISP with this code on my 2292.  
I did 
> not need to switch off.
> 
> I wanted to try this on your board.  If it works without need to 
switch 
> off, then my understanding of the problem is incorrect.  If it does 
need 
> you to switch off, then the problem may be specific to the part of 
version 
> of boot loader.
> 
> I like to find out which of the above is the case.
> 
> Regards,
> 
> Jaya 
> 
> Send instant messages to your online friends 
http://au.messenger.yahoo.com
>

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