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000453_news@columbia.edu_Wed Nov 29 11:25:57 1995.msg
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From: jvjena@cs.tu-berlin.de (Joachim von-Jena)
Newsgroups: comp.protocols.kermit.misc
Subject: Problems with K95
Date: 29 Nov 1995 11:25:57 GMT
Organization: Technical University of Berlin, Germany
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I have several problems with the brand new Kermit 95.
I bought Kermit 95 from the Kermit Distribution and have updated to
ver. 1.1.1.
I use Kermit 95 on a system with Windows NT 3.51 SP2:
Hardware:
Mainbord: ASUS PVI-486SP3 BIOS 0207, 486DX, 32MB RAM,
Hostadapter: Adaptec 2940
SCSI harddisks: IBM DPES 31080S and Quantum LP270S
Graphic card: Mach 64 Turbo VLB
Serial communication: On-board SMC37C665GT Multi-I/O chip on COM2
Modem: ATT DATAport 2001.
My K95CUSTOM.INI contains the lines:
set modem type att-dataport
set port com2
set speed 57600
set dial method Tone
set dial country-code 49
set dial area-code 30
set dial ld-prefix 0
set dial intl-prefix 00
set dial init-string AAATQ0E1X6L0&Q0S78=1S84=0\13
set dial timeout 30
set priority regular
set protocol zmodem
set file download-directory D:\DATA\JVJ\DOWN
set key \1379 \3
set key \2402 \124
set key \2404 \60
set key \2406 \62
define dialin -
:loop, dial \%1, -
xif fail { echo Pausing ..., sleep 10, goto loop }, -
connect
I have problems with my ISP (TU Berlin) in times of heavy load of their
network. I get interruptions at downloading with ZModem with errors as
CRC32 error and subpacket-length error. Often I have to interrupt myself
the download by a hang-up (see below) I assume it is a problem of
flow-control.
The documentation for Windows Nt says (README.WRI):
"25.5 Running Serial Communications Applications:
For reliable data transfer at the highest baud rate, use communications
protocols that support end-to-end flow control.
Serial flow control protocol Flow control
...
ZMODEM *) No
*) Some applications allow flow control with ZMODEM. For example,
you can enable flow control with Procomm Plus 2 by setting the
Transmit Method to 4K WINDOW."
Is there a way to set a packet-length/window size in Kermit 95?
Is there a way to resume a download of a file at the point it was
interupted with ZModem?
Is this done automatically or by a special command?
I have followed the advice to remap the Ctrl-C key code (see my
K95CUSTOM.INI) but Ctrl-C doesn't work as well on a remapped key (but
the remapped <, >,| keys work).
(Perhaps you wonder why to remap <,>,|. I use a MF101 keyboard with
german key mapping. These characters are on the lacking 102th key of a
german standard MF102 keyboard between the left Shift-key and the Z-key.
So I normally have no <,>,| keys at all) .
So I have to hang-up if a download with ZModem is impossible!
What about an error that I get on every dial timeout:
The message I get from Dr. Watson for Windows NT :
An application error has occurred and an application error is being
generated:
K95.exe
Exception: access violation
(0xc0000005), Address 0x00026a3f
Kermit 95 gives the message:
Dial Failure: No Carrier
Dial Failure:
Your reactions are highly appreciated.
Joachim von Jena
email jvjena@cs.tu-berlin.de