are you using a USB to Serial dongle? for some time now they've been a standardised SoC that apparently handles breaks poorly... so if the system is expecting a break...
(found this out for Unify PABX and Cisco serial - in the latter case, dropping the speed to 2400 and holding down space bar for 15 seconds was enough to fake a break - go figure... weird ) On Mon, 20 Aug 2018 at 10:29, cory seligman via luv-main < [email protected]> wrote: > Hi All, > > I'm having some trouble making expect work. > > I need it to talk to some vintage equipment over usb serial, and I think > I'm getting hung up on opening the port. > > When the script runs, it just connects to the device and sits there. I can > drive it interactively, but it doesn't attempt to automate anything. > > Any ideas? Thanks. > > My expect script looks like this: > > #!/usr/bin/expect -f > > # device > set modem /dev/ttyUSB0 > > # keep it open > exec sh -c "sleep 3 < $modem" & > > # serial port parameters > exec stty -F $modem 2400 raw -clocal -echo -istrip -hup > > # connect > send_user "connecting to $modem, exit with ~,\n" > spawn -open [open $modem w+] > interact { > ~, exit > ~~ {send "\034"} > } > > set force_conservative 1 ;# set to 1 to force conservative mode even if > ;# script wasn't run conservatively originally > if {$force_conservative} { > set send_slow {1 .1} > proc send {ignore arg} { > sleep .1 > exp_send -s -- $arg > } > } > > set timeout -1 > match_max 100000 > send -- "\r" > send -- "\r" > expect ">" > send -- "p 7d91\r" > expect ">" > send -- "p b2ff\r" > expect ">" > send -- "h\r" > expect ">" > send -- "td\r" > expect "td\r > 18 215 12 24 33\r > >" > send -- "gd 215\r" > expect eof > > > > _______________________________________________ > luv-main mailing list > [email protected] > https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main > -- Dr Paul van den Bergen
_______________________________________________ luv-main mailing list [email protected] https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
