mbr@fortune.UUCP (04/19/84)
#N:fortune:14700012:000:602
fortune!mbr Apr 19 10:34:00 1984
I am writing code to do I/O using an RS-232 port on the IBM PC, and
I need to support the following forms of handshaking:
software: DC1/DC3
ETX/ACK
hardware: DSR/DTR
CTS/RTS
I have read the section entitled "IBM Asynchronous Communications Adapter"
(pp. 1-183 to 1-212) of the IBM PC/XT Technical Reference. I can find no
information on how to set up handshaking. Do I have to code the protocol
myself, or have I missed something in the documentation?
Please reply by mail. I will summarize to the net when the responses dwindle.
{ihnp4,ucbvax!amd70,hpda,sri-unix,harpo}!fortune!mbrjph@whuxle.UUCP (04/20/84)
#R:fortune:14700012:whuxle:22700024:000:241 whuxle!jph Apr 20 08:51:00 1984 you have to write a routine to implement the protocol that you desire. The async support device only provide an interface to put/get characters from the comm line, with the assumptions that the user is handling any protocol related actions.
mbr@fortune.UUCP (04/24/84)
#R:fortune:14700012:fortune:14700013:000:299
fortune!mbr Apr 24 10:57:00 1984
This is in reference to my question about how to do handshaking on an
RS-232 port on the IBM PC. I've received several responses, all saying
essentially the same thing: you have to code the protocol yourself.
Many thanks to all who responded.
{ihnp4,ucbvax!amd70,hpda,sri-unix,harpo}!fortune!mbrron@brl-vgr.ARPA (Ron Natalie <ron>) (04/25/84)
Did you ever notice that in the PC glossary (obviously condensed from some larger IBM dictionarry) that the following definitions appear: DSR: Data Set Ready DTR: Distribution Tape Reel -Ron