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Lpc2000

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Message

Re: LPC hardware+software problems

2006-05-01 by jayasooriah

--- In lpc2000@yahoogroups.com, "Bruce Paterson" <bruce.paterson@...>
> Jaya,
> I don't understand your issue. The Philips watchdog can be programmed to
> either provide an interrupt (your preferred method), or a reset
> (Brendan's preferred method).

Watchdog is typically used to recover from deadlocks that include the
shutdown of interrupts.

> You are free to use the method of your
> choice. Seems Philips have thought about it. 
> Since there may also be external hardware (which also may potentially
> get into a lockup state), connected to the /Reset line that is also
> reset with a watchdog  I much prefer the "real" reset method.

The SAM allows you to do this as a matter of choice.

> Sometimes
> hardware is outside your choice, or you only discover issues late in the
> piece and re-rolling a PCB is an expensive and time-costly option.
> As you say, if choosing new hardware is an option open to you, maybe you
> should choose a SAM or OKI and stop worrying about the LPC.
> So far, despite a few documented minor software workarounds, I've been
> happy with my choice of LPC2000 series. 

I do not disagree with that at all.  That is why it is possible for
one to be working on LPC and for this reason I tend to frown on "if
you do not like the LPC switch to another forum" kind of remarks.

Jaya

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