If a serial connection is done in a proper way you have a so called
handshake: that means if any of the devices connected cannot deliver the
requested data it will flag the handshake signal and the other device will
wait patiently until the opponent gets ready or the timeout occurs.
This ensures that no matter of the processing power of the devices you want
to connect, they can communicate without problems.
Unfortunately this is not the case for NCU Win. This connection seems to be
strongly dependent on the processing power of the PC: the faster the PC the
less patient it behaves for receiving data from the Newt.
But there is a workaround. There is a small application called slowdown.exe
you need to launch (even in multiple instances for very fast machines) in
order to use most of the processing power for that process. Then the PC is
much slower in polling the serial interface and the connection to the Newt
appears to be more stable.
Johannes
> -----Original Message-----
> From: newtontalk-bounce_at_newtontalk.net
> [mailto:newtontalk-bounce_at_newtontalk.net]On Behalf Of Andrew Matthews
> Sent: Thursday, August 22, 2002 3:23 AM
> To: newtontalk_at_newtontalk.net
> Subject: [NTLK] Newton-Windows connection problems
>
>
>
>
> Hey all,
>
> Ever since I upgraded to Windows 2000 Pro, I've been having some
> difficultiestransferring files between my MessagePad 130 and my computer.
> Theconnection almost appears to have a bandwidth cap; smaller
> files (~<30k)
> transfer fine, but larger file transfers immediately halt when that amount
> has been transferred. It works the same when uploading, as well;
> backing up
> address data is fine, but the instant the Newton tries to backup packages,
> the connection drops. I've got tons of free space, 970K, so there's no
> reasonthat I can see why it shouldn't work. Anyone have any ideas why this
> ishappening?
>
> By the way, I'm new to the NewtonTalk list, so to introduce
> myself briefly,
> I've been a devout Newton user since I bought my 130 2 years ago, and a
> semi-devout Mac user since I was little. I've got waaay too many
> Macs, but,
> sadly, only one Newton.
>
> Anyway, thanks all.
>
> Andrew Matthews
>
>
>
>
>
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