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AZC.Readme
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1988-11-22
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72 lines
9/24/88
AZComm 1.00 is a modified version of the COMMunicator version 1.34
AZComm contains 3 extra functions in the File menu , Zmodem Receive,
Zmodem send, and Zmodem Resume Receive. the zmodem routines are the
latest implementation and contain full-data streaming with 32-bit CRC
error checking.
these zmodem functions were coded for speed and are the ONLY routines
for the Amiga that will send and receive with an ACTUAL throughput
greater than 19,200 baud. new features include optional 7-wire serial
handshaking and doublebuffered file writes at baud rates above 9600 to
allow storage on slow devices.
OPTIONS:
3/7-wire handshaking - to enable 7-wire handshaking , you must select the
RTS/CTS gadget under the serial menu in preferences. if this is set in the
current preferences , the serial device will be opened with the SERF_7WIRE
flag set, otherwise only 3-wire handshaking will be used (Transmit, Receive,
and Ground).
xon/xoff - if you disable xon/xoff in the menu then during zmodem transfers,
the serial device will be changed to accomodate SERF_RAD_BOOGIE. this is the
fastest possible mode for the serial device to operate but will not allow
for xon/xoff or parity checking. this usually isnt needed unless you expect
transfers greater than about 16,000 baud throughput. xon/xoff is necessary
if you are saving to a slow device (floppies) at high speeds or you will
have overrun errors.
zmodem send - selecting this item will open up the standard file requestor
and ask you for the filenames to send. you can select 1 file from the
requestor and that will be the first file sent. to send batch , you must
seperate the file names by a space in the filename string gadget.
zmodem receive - after selecting this menu you must select the output file
path for the received files to be saved. only the pathname is used , any
filename entered will be ignored.
zmodem resume receive - same as zmodem receive , but if an incoming file
already exists , it will attempt to resume the transfer from the end of
that file.
-------------------------------------------------------------------------
below are some measured statistics receiving different files
to a Fast File System Hard Disk.
---------- Characters per Second -------
type size null modem 19,200 HST 9600 HST
------ ---- ---------- ---------- --------
binary 606K 1836 1128 932
text 681K 1903 1897 969
binary 284K 1818 1112 920
this is my attempt at bringing the Amiga 9600 modem community up to speed.
Previously no terminal program could receive efficiently at baud rates
above 9600.
if you have any questions or comments, contact me at the following number.
SS. Patel (412) 366-1849
North Hills, Pennsylvania