ferguson@garnet.bucknell.EDU ("Scott R. Ferguson") (12/17/88)
I am working on a serial line transfer program which essentially
reads a character, puts a character, etc. I am having a problem
with the terminal control parameters.
Using emt, I can see the data on the screen, and I noticed the following:
With TCTL set to -default, the node should be sending ctrl-s and ctrl-q,
right? However, the node doesn't, and in emt I can manually send ctrl-s
to stop the data from coming, and ctrl-q to restart the data. Because of
this, I get continuous character framing errors.
What are the TCTL settings which allow the computer to automatically handshake?
It seems according to the tctl help file that the default setting (-sync) should
take care of it, but it doesn't.
Thanks to anyone who can help.
Scott Ferguson
ferguson@apollo.bucknell.edushull@SCROLLS.WHARTON.UPENN.EDU (Christopher E. Shull) (01/05/89)
On Fri, 16 Dec 88 11:17:36 est, Scott R. Ferguson, <ferguson%garnet.bucknell.edu@CUNYVM.CUNY.EDU>, asks in message <8812161617.AA01187@apollo.bucknell.edu>: >I am working on a serial line transfer program which essentially >reads a character, puts a character, etc. I am having a problem >with the terminal control parameters. > >Using emt, I can see the data on the screen, and I noticed the following: > > With TCTL set to -default, the node should be sending ctrl-s and ctrl-q, > right? However, the node doesn't, and in emt I can manually send ctrl-s > to stop the data from coming, and ctrl-q to restart the data. Because of > this, I get continuous character framing errors. > >What are the TCTL settings which allow the computer to automatically >handshake? It seems according to the tctl help file that the default >setting (-sync) should take care of it, but it doesn't. > I'm not sure if this will help or not, but here are the files we used to use at Wharton to talk to our VMS VAXen (before Ethernet & TCP/IP): /wharton.dir/vax/vax /com/vt100 /com/sh /wharton.dir/vax/vax.cmds /wharton.dir/vax/vax.cmds vsize vctl -default args " " args " After logging in, type:" args " " args " SET TERMINAL /PAGE=#" args " " args " where # is the number of lines the vt100 window on the Apollo is." args " When using this script, this appears at the top of this vt100 window" args " Failure to change the page length limits the number of lines the VAX" args " will send to the screen, assuming it is a standard 24 line DEC VT100." args " " /com/emt /wharton.dir/vax/vax.args /wharton.dir/vax/vax.args # change SIO line numbers here if necessary line 1 # change speed and other line parameters here tctl -speed 9600 -sync -insync -cvtraw_nl # VAX/VMS seems to need the following two commands: interm lf outterm cr # set RAW mode and ASCII_ONLY on the next two lines: raw asconly # specify that a session log be kept in ~vax.log: rcv -r -nokeys ~vax.log Good Luck! -Chris Christopher E. Shull Decision Sciences Department The Wharton School shull@wharton.upenn.edu University of Pennsylvania shull@scrolls.wharton.upenn.edu Philadelphia, PA 19104-6366 215/898-5930 --------------------------------------------------------------------------- "Damn the torpedoes! Full speed ahead!" Admiral Farragut, USN, 1801-1870 ---------------------------------------------------------------------------