vic@zen.UUCP (Victor Gavin) (01/14/88)
I'm looking for some information about the protocols used in Unix file transfer programs (eg umodem). Having read the manuals I see that they use the TERM II File Transfer Protocol (XMODEM is TERM II, type 3). The idea is to get a dedicated micro (using an 8051) to transfer data (as a simulated file) onto a Unix box -- using the existing commands (umodem if possible) -- over a MODEM. I have the C sources to various programs which use these protocols but nowhere do they explain how the protocol works. I can of course decode one of these programs and find out the method but I am liable to miss something (probably important) so I hope that some kind person out there can supply details of the protocol or a pointer to where details may be found. Thanks for your time, vic -- Victor Gavin Zengrange Limited vic@zen.co.uk Greenfield Road ..!mcvax!ukc!zen.co.uk!vic Leeds LS9 8DB +44 532 489048 England
hartzell@boulder.Colorado.EDU (George Hartzell) (01/17/88)
Try getting in touch with Chuck Forsburg. I beleive he has a document
that sumarizes the *modem protocols. The last address that I have for
him is ...!tektronix!reed!omen!caf .
g.
George Hartzell (303) 492-4535
MCD Biology, University of Colorado-Boulder, Boulder, CO 80309
hartzell@Boulder.Colorado.EDU ..!{hao,nbires}!boulder!hartzellW8SDZ@SIMTEL20.ARPA (Keith Petersen) (01/18/88)
There is a complete collection of file transfer protocol documents,
including Chuck Forsburg's Ymodem/Zmodem, available via standard
anonymous FTP from SIMTEL20:
Filename Type Bytes CRC
Directory PD1:<MISC.PROTOCOLS>
DISINFO.TXT.1 ASCII 9260 DC79H
FAST.TXT.1 ASCII 21776 E61AH
MEGALINK.DOC.1 ASCII 17567 E08DH
MODEM7.DOC.1 ASCII 13552 C0A9H
PROTCISA.TXT.1 ASCII 14645 8C8AH
PROTOCOL.DOC.1 ASCII 21035 83B2H
PTEST.DOC.1 ASCII 6558 69E6H
ROBUST.EOT.1 ASCII 2547 28B4H
WXMODEM.DOC.1 ASCII 52093 84BBH
X-PC.DOC.1 ASCII 125984 2CD0H
XMODEM-CRC.NOTE.1 ASCII 8879 7479H
XMODEMBATCH.PROTOCOL.1 ASCII 1571 1028H
XPKTPROT.DOC.1 ASCII 2297 03ECH
YMODEM5.DOC.1 ASCII 65477 858EH
ZMODEM5.DOC.1 ASCII 103675 9AAFH
--Keith Petersen
Arpa: W8SDZ@SIMTEL20.ARPA
Uucp: {decwrl,harvard,lll-crg,ucbvax,uunet,uw-beaver}!simtel20.arpa!w8sdz