Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!ucsd!nosc!helios.ee.lbl.gov!lll-tis!ames!vsi1!wyse!mips!sultra!dtynan From: dtynan@sultra.UUCP (Dermot Tynan) Newsgroups: comp.unix.questions Subject: Re: VT100 terminfo problem Summary: Similar Stuff. Message-ID: <2408@sultra.UUCP> Date: 19 Sep 88 18:16:46 GMT References: <3340@dunkshot.mips.COM> Organization: Ultrasystems DSI, Sunnyvale, CA Lines: 31 In article <3340@dunkshot.mips.COM>, dce@mips.COM (David Elliott) writes: > > My question is this: Do some VT100s not do XON/XOFF handshaking > properly, or is it more likely that we aren't doing XON/XOFF > correctly? > > David Elliott dce@mips.com or {ames,prls,pyramid,decwrl}!mips!dce I have a similar problem. I wrote the control software for a client, which includes an RS-232 port for sending commands, and receiving status. I wrote an advanced (in *my* opinion, anyway) serial driver, including X-ON/X-OFF pacing. I used a beat-up Hazeltine to debug the code, and the old dog ran to 19.2Kb (without pacing!) no problems. My problems started when I put a VT100 on there. Every once in a while, the whole thing hangs. It looks as though the VT100 sent an X-OFF, without an X-ON. If I enter and exit the SETUP menu, on the terminal, the problem goes away. Also, it stops when I run the terminal at 4.8Kb or less. At 19.2, the terminal blasts pacing controls down the wire, like they were going out of business. It's a real pain, because the system starts to detect major problems when it sees the terminal as being offline all of a sudden. I can't find anything in my code which could cause this (of course, that's not to say that there isn't anything there :-), and at this stage, I'm considering specifying the use of a terminal other than the VT100. Can you beleive that antique Hazeltine can handle the speed, and the VT100 can barely handle 9600 baud without pacing the interface? Anyway, I too would like to hear of other peoples problems in this regard. - Der -- Reply: dtynan@sultra.UUCP (Dermot Tynan @ Tynan Computers) {mips,pyramid}!sultra!dtynan Cast a cold eye on life, on death. Horseman, pass by... [WBY]