Dickie: Zmodem trouble...

ZXNet echo conference «real.speccy»

From Felix Knajzev To All 31 May 1999

Greetings, oh venerable Nikolay!

[Friday 28 May 1999] at [19:19:04] Nikolay Maslennikov wrote a letter to
Aleksey Gavrilenko.
They discussed the topic "Dickie: Zmodem trouble...".
Let's continue what we started...

[skip]

AG>> although if you put the window on reception at 1 kilo, then everything is ok, but
AG>> with
AG>> transmission I tried it like
AG>>, there were indeed glitches, I set the window to 1
AG>> kilo, but it sent 512
AG>> bytes and somehow unevenly..... although there were perhaps
AG>> glitches with
AG>> connection....
NM> Hello, how to set the kna size to 1024k and where? otherwise you really need
NM>

In cfg-shnik:

;ZMODEM_TXWINDOW 1024; window size for transmission (it is advisable
to be commented out, because, IMHO, it does not work as it should).

ZMODEM_RXWINDOW 1024; -//- for reception. (if when receiving a long file
sometimes 'Data CRC error' will appear, then uncomment it.
in this case cps will drop significantly.)

Sincerely, Felix.

[I ZX]

From Felix Knajzev To All 31 May 1999

FK>>> So in this case, zmodem was buggy when transmitting “from me”:
FK>>> windows were transmitted “one by one”. :(

KF>> What was the timeout?

KF>> Set it to 20 seconds.

RM> Where is this?

In the cfg file:

ZMODEM_RXTIMEOUT 200; 20*10

From Roman Milukov To All 3 June 1999


Hello, Felix!

Mon May 31, 1999 you wrote here:

FK> In cfg-schnik:

FK> ;ZMODEM_TXWINDOW 1024; window size for transmission (it is advisable to comment out
FK>, because, IMHO, it does not work as it should).

FK> ZMODEM_RXWINDOW 1024; -//- for reception. (if when receiving a long file

And explain in the same way as in Hydra.
Is it possible to set an arbitrary size there? 4096 for example?
I have everything commented out there right now. Maybe I need to uncomment something? I tried
something, but didn’t notice any significant changes. What’s better? Theoretically?

All the best.
Best regards Roman.


From Felix Knajzev To All 8 June 1999

FK>> long file

RM> And explain in a similar way for Hydra.
RM> Is it possible to put an arbitrary size there? 4096 for example?
RM> I have everything commented out there right now. Maybe there is something
RM> that needs to be uncommented? I tried
RM> a few things, but didn't notice much change. What's better?
RM> Theoretically?

With 'Hydra' - not for me. I don't use it. All questions to the author or to those who really understood the Hydra settings. ;)