Lpc2000

Hi Robert,

That's exactly been my gripe ever since the LPC2104/5/6.
I can't use P0.14 for generic I/O (for interpreter product),
for the reasons you mention.
Why could this not be on the NC pin on 44-QFP ???????
(die bonding reasons too I guess)

-- Kris

----- Original Message -----
From: "Robert Adsett" <subscriptions@...>
To: <lpc2000@yahoogroups.com>
Sent: Saturday, November 20, 2004 3:37 AM
Subject: Re: [lpc2000] Re: Any way to launch ISP ?


> At 06:27 AM 11/19/04 +0000, you wrote:
> >Thank you...this is exactly what I was looking for!
>
> You may be happy, I'm rather dismayed that this works.  It means that
P0.14
> cannot be used in an application since it implies that if you get a for
> instance watchdog reset while P0.14 happens to be low rather than
> restarting the application you will enter ISP mode.  Dangerous,
Dangerous....
>
> The other processors I've used that use this required that an external
> reset be used before entering any special modes (such as ISP) in order to
> prevent such behaviour.  You did have to be careful about the reset state
> but that's something you needed to be careful of anyway.
>
> 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
>
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