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Lpc2000

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Re: [lpc2000] Re: Any way to launch ISP ?

2004-11-19 by microbit

> True...but remember the WatchDog Flag is always checked before P0.14
> on the Boot Process Flowchart.

Hi Leighton,

Equally true, but the problem is the same on brownout or even possibly
(more remote) on cold start.
My app ignores P0.14, because I have a stamp-like RF module , and the user
could be doing all sorts of things on this I/O pin.
Making this safe inherently implies extra and irritating HW cost anyway.

-- Kris

>
>
> --- In lpc2000@yahoogroups.com, "microbit" <microbit@c...> wrote:
> > That's not the problem.
> >
> > ----- Original Message -----
> > From: "Leighton Rowe" <leightonsrowe@y...>
> > To: <lpc2000@yahoogroups.com>
> > Sent: Saturday, November 20, 2004 3:42 AM
> > Subject: [lpc2000] Re: Any way to launch ISP ?
> >
> >
> > >
> > > > Leighton, do you know if the ISP code kicks the watchdog?  This
> > > should
> > > > be a great help to me either way...I second your vote for best
> code
> > > > example!
> > >
> > > Looking at the bootloader flowchart, it's hard to say what's
> really
> > > in the ISP code (that we may never find out). Whether or not the
> ISP
> > > has authority over the Watchdog? I doubt it, but don't take my
> word
> > > on it. I haven't seen any instance of lpc's resetting itself
> (using
> > > Watchdog or other means) during ISP mode.
> > >
> > > Leighton
> > >
> > >
> > >
> > >
> > >
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