Re: Transfer time with ADTgs - 2.5 *HOURS*?

[Stephen Shaw <xstephenx@apple2.org.za>]

On Mon, 14 Jan 2002 10:41:21 GMT, Mad Martian wrote:

> I stand corrected! The next day I had the very same problem without
> touching the cable since the "fix". Only powered off one day, then powered
> on the next! Weird! By coincidence, when I had gotten it to work I had also
> tried the Windows version of ADT. It crashed, but I then got the DOS
> version working correctly. So when the problem reoccurred the next day, I
> tried running the Windows version again. This time it transferred several
> disks correctly before crashing. The DOS version then still failed to work
> at normal speed, so I stuck with the windows version. It only seems to
> crash after trying to transfer bad .dsk files. For now I will just stick
> with the Windows version, but both versions appear to have bugs on the PC
> side not related to my cable.

Mad Mart you have a dry joint on the plugs. Resolder all of the joints and
do not move the cable until solder is solid! This causes the problem you
describe.
 
>
> "Mad Martian" <news@madmartian.com> wrote in message
> news:_fV%7.5076$Tq.30445@rwcrnsc54...
>> I fixed it!
>>
>> Ok, that's what I get for just looking at the pinouts and not reading the
>> instructions. 1, 6, and 8 on the PC were connected to each other, but not
>> all at the D9 end. Once I changed that, it worked at normal speed.
>>
>> "Mad Martian" <news@madmartian.com> wrote in message
>> news:XaB%7.9884$JF.84589@rwcrnsc52.ops.asp.att.net...
>> > It is taking me 2.5 *hours* per 140k .dsk file from a PC. This seems
>> rather
>> > excessive. I used the pinouts listed in the transfer faq to build a
>> > combination 2gs high speed modem cable/null modem adapter in one cable
>> (faq
>> > #20, end of question 6 answers, using dsub9f on the PC end).
>> >
>> > Now doing the math, assuming 1 bit per baud at 9600 baud, 9600 bits per
>> > second at 8 data bits + 1 stop bit per byte means 1066 bytes per second.
>> > 140k bytes = 143,360 bytes should transfer in about 2.2 *minutes*.
> Adding
>> > time for software overhead (error checking) and file saving shouldn't
> add
>> > 2.3 *hours*. Is my math or my cable flawed? The disks do work and no
>> errors
>> > are reported during transfer on either end.
>> >
>> > Here's the pinouts I used from the faq:
>> >
>> > IIgs       PC      Signal
>> > -----------------------------
>> > 3           2         RXD
>> > 5           3         TXD
>> > 4,8        5         GND
>> > 2           7         RTS
>> > 1           1,6,8   CTS, DSR, DCD
>> > 7           4         DTR
>> >
>> > Thanks.
>> >
>> >
>>
>>

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