Matthias,

Another post indicated that it was possible (likely) that a 328P with
AmForth might be bricked
during developing a program.  With you 328P being surface mount it sounds
as if that is a
show stopper, depending on how dead the 328P was.

My understanding is that surface mount 328P's were only used when  the DIP
versions were not available.
 I only have one Arduino Uno and it is the DIP version.

I have a project with a deadline and my scarcest resource is time.  Even if
it isn't rocket science I can't
let myself get sidetracked with peripheral activities.

You said,in an earlier post, that the Arduino Uno wouldn't be your first
choice for a SBC for AmForth.  I'm
not locked into the Arduino Uno,  It was available at an attractive price
for this project.  Can your recommend
another SBC that would come up in Forth and be in this general price range?
 I wouldn't mind pausing the
development of my existing Arduino Uno  "c" program and try another board
if it would get me up and running
 in Forth without delay.

I appreciate your input.

Carl










On Sun, Jul 21, 2013 at 11:00 AM, Matthias Trute <mtr...@web.de> wrote:

> * Replies will be sent through Spamex to
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>
> Hi Carl,
>
> > Thank you for your detailed analysis of the situation.  I have to
> > admit that we have different goals or that I don't understand the
> > problem.  I'm willing to believe that it's that I don't understand,
> > but I get the flavor that you are shooting for a solution which uses
> > the actual chip in the Arduino Uno and want to be able to recover
> > its original operation.
>
> All of my arduino's have SMD chips. I could not replace them, not even
> if I would need to.
>
> > I had hoped for a solution where the original ATmega328P is removed
> > from the board and replaced with another 328P already programed for
> > AmForth.
>
> Since the arduino provide the ISP pins for in place programming (a 2x3
> pin header), I see no need to physically replace the chips. All that
> differs is software and it can be changed any time. You need
> a ISP capable programming device (e.g. another arduino with an
> ISP-MK2 sketch or a real programmer like the AVR ISP MK2 from Atmel).
>
> There's no rocket science involved.
>
> > I appreciate your interest and would be pleased to hear your take on
> >  removing the existing 328P and replacing it with a pre-programmed
> > Forth chip. I would think bootloader considerations would go away
> > under these circumstances.
>
> The bootloader can easily re-programmed with the Arduino IDE (there's a
> menu option for it). All you need (again) is a programming device. And
> after that, your arduino works as nothing has happened at all.
>
> Matthias
>
>
>
>
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