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Re: Sending commands to serial port - question

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In article <b2118d91-abe7-4967-b026-42c421648141@h34g2000yqd.googlegroups.com>,
Tom  <tdenham735@gmail.com> wrote:
>Hello,
>
>I'm new to Kermit...this is my first very simple script.
>
>I am running Ubuntu and trying to make a script to automate a way to
>send commands to a serial device.
>
>I need to toggle the device with ^S004AUX0 (off) and ^S004AUX1 (on).
>
>I'm able to connect like so:
>
>#!/usr/bin/kermit +
>
>set modem type Serial       ; There is no modem
>set line /dev/ttyUSB0         ; Specify device name
>set carrier-watch off           ; If DTR and CD are not cross-
>connected
>set speed 9600                 ; Or other desired speed
>set flow xon/xoff                ; If you can't use RTS/CTS
>set parity none                  ; (or "mark" or "space", if
>necessary)
>set stop-bits 1                   ; (rarely necessary)
>connect                            ; this is where I get lost on the
>automation and have to enter manual.
>
>From here I can type ^S004AUX0 and toggle the device off (or on), but
>would like to automate this part.  It's probably pretty simple for
>anyone who's used kermit more than a day:)
>
>Can this be automated in the kermit script? 

Trivially.

the secret is "do -not- use 'connect'".

At the kermit prompt, type "help output".

>                                             If so...can someone show
>an example?

kermit> output ^S004AUX0

Note: if '^S' is [CTRL-S], aka [XOFF], aka [DC3], you probably want
'set flow-control none' --  if that control-s is echoed back to the
port on the PC, kermit's xon/xoff flow-control support wills *STOP*
sending any further characters to the device until an XON/[CTRL-Q]/
[DC1] character is received from the other device.

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Thread

Sending commands to serial port - question Tom <tdenham735@gmail.com> - 2011-11-02 08:17 -0700
  Re: Sending commands to serial port - question Tom <tdenham735@gmail.com> - 2011-11-02 08:25 -0700
  Re: Sending commands to serial port - question pechter@pechter.dyndns.org (Bill Pechter) - 2011-11-02 17:38 +0000
  Re: Sending commands to serial port - question Christian Corti <use@reply.to> - 2011-11-02 18:15 +0100
  Re: Sending commands to serial port - question bonomi@host122.r-bonomi.com (Robert Bonomi) - 2011-11-03 04:28 -0500

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