[comp.sys.amiga] szrz posting

rap@ardent.UUCP (Rob Peck) (11/22/88)

To whomever adapted the sz/rz file transfer programs (Zmodem) for Amy -
thank you!  The notes I found in the docs mention that it had only been
tested at 1200 baud so the adaptor was not sure whether it would work
at higher rates.  Well, I have sz/rz for a Sun-2 and had to transfer
some usenet files to disk.  Using 1.3, I created a disk-sized RAD:
(highcyl = 79), and was able to use the Amy rz at 9600 baud to RAD:
WHILE FORMATTING A DISK IN DF1:, with only very rare retry because of
a data error.  In 800K (covering up to 200 comp.sys.amiga postings
in each shot), I believe there were perhaps 2 or 3 retransmits.
I am definitely impressed.

By the way, sz/rz will not work at 9600 baud if you are trying to
transfer directly to disk; yes the retries continue and eventually
work error free, but it is painful to watch and takes way too long.
Also, I had to use RAD: because of the checking for available disk
space from RAM: returns the fact that the "disk is full".  Since
RAD: is fixed size, I was able to use it instead.  Maybe someone
might wanna do a patch for RAM: to take care of this (note - if a
patch like that IS done, include VDK: as an alternative.  Though I
do realize that someone on PLINK did come up with a binary patch
to VDK: to eliminate reporting of 100% full on VDK:, I'd rather
that the program that uses it realize what kinda "disk" it is dealing
with, thus being compatible with RAM:'s current handling of this
sorta thing... unless RAM: will be changed in 1.X too?).

Rob Peck

papa@pollux.usc.edu (Marco Papa) (11/22/88)

In article <728@ardent.UUCP> rap@ardent.UUCP (Rob Peck) writes:
>To whomever adapted the sz/rz file transfer programs (Zmodem) for Amy -
>thank you!  The notes I found in the docs mention that it had only been
>tested at 1200 baud so the adaptor was not sure whether it would work
>at higher rates.  Well, I have sz/rz for a Sun-2 and had to transfer

>By the way, sz/rz will not work at 9600 baud if you are trying to
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
>transfer directly to disk; yes the retries continue and eventually
                   ^^^^^^^
>work error free, but it is painful to watch and takes way too long.

The way I got Zmodem for A-Talk III to receive at 9600 baud directly
to a floppy disk is by buffering 16K worth of input data, and then 
make a single 16K write to the disk [Note: this is with A-Talk III,
rel. 1.0c, not the original release]. Feel free to pass this along to
whoever did rzsz for the Amiga.

-- Marco Papa 'Doc'





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csc21824@unsvax.UUCP (Jay) (11/23/88)

>Also, I had to use RAD: because of the checking for available disk
>space from RAM: returns the fact that the "disk is full".

I had this problem too at first, then I learned that all you had to
do is use the -n (don't skip file) option.

My complaint on RZ/SZ is that it opens its own window.	Fine, except
that I'm writing a BBS program and plan on using RZ/SZ to handle the
uploading and downloading, but have no way to find out the status of
the program.



Anyone know a way around this without re-writing the program ( I do have
the Unix source) ?