Re: [NTLK] NCX: problems connecting via Ethernet

On Jan 20, 2007, at 10:53 AM, matthiasm wrote:

>
> On Jan 20, 2007, at 7:33 PM, Martin Joseph wrote:
>>
>> On Jan 20, 2007, at 4:39 AM, James Wages wrote:
>>
>>> I've also found dropped connections when transferring large files
>>> (over 3MB in size)...
>
>>> Despite the negatives though, I think Simon has done an excellent
>>> job.
>> Yes, It is an incredible update to our OSX arsenal of Newton tools,
>
> Those serial port dropout obviously come from a serial connection
> that is simply too fast. Since a baud rate is a baud rate, it cant be
> the transfer rate itself. It seems that there were some (untimed)
> busy loops in the original connection utilities that the Newton needs
> to avoid the hick-up.
>
> Has anyone researched where those hick-ups actually occur? Is it a
> byte-to-byte timing issue, or is it a pause that is required after a
> certain block size? Or anything else? If we could find that out, we
> could fix most apps that have this issue.

Seems like he suggested that the same hardware with os9 and NCU had
no issues? I don't think the Mac version of NCU has displayed the
kind of major timing issues the PC version has (ie slowdown ).

Don't know about your question, but it does seem like it has always
been an issue to transfer very large items serially regardless of
configuration?

Marty

PS I have been meaning to mess with your Newton emulator, but haven't
gotten there yet.

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