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Groups > comp.arch.embedded > #13009

Re: Simple protocol analyzer?

From Grant Edwards <invalid@invalid.invalid>
Newsgroups comp.arch.embedded
Subject Re: Simple protocol analyzer?
Date 2013-08-06 18:48 +0000
Organization PANIX Public Access Internet and UNIX, NYC
Message-ID <ktrge0$hrt$1@reader1.panix.com> (permalink)
References <vradnSIUxLKwt5zPnZ2dnUVZ5qudnZ2d@giganews.com> <ktrb3v$ih6$1@reader1.panix.com> <y_ydnU1gndpIpJzPnZ2dnUVZ5h2dnZ2d@giganews.com>

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On 2013-08-06, Tim Wescott <tim@seemywebsite.really> wrote:

>> http://elinux.org/Grabserial
>
> Grant, that's about as perfect as a command-line utility can get.  It 
> does just what I want, and the command-line clunkiness doesn't intrude 
> too badly.  It's going to save me tons of time over having to write 
> something.

Well, it'll save you a few minutes over having to write something

;)


  #!/usr/bin/python
  import serial,time
  p = serial.Serial('/dev/ttyS1', 9600)
  while 1:
      line = p.readline()
      print time.time(),line

In that version, the timestamp is associated with the end of the line.
If you want the timestamp for the start of the line, it's a bit more
complicated:

  #!/usr/bin/python
  import serial,time
  p = serial.Serial('/dev/ttyS1', 9600)
  while 1:
      first = p.read(1)
      stamp = time.time()
      rest = p.readline()
      print stamp, first+rest

-- 
Grant Edwards               grant.b.edwards        Yow! Should I get locked
                                  at               in the PRINCICAL'S
                              gmail.com            OFFICE today -- or have
                                                   a VASECTOMY??

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Thread

Simple protocol analyzer? Tim Wescott <tim@seemywebsite.really> - 2013-08-06 11:54 -0500
  Re: Simple protocol analyzer? Grant Edwards <invalid@invalid.invalid> - 2013-08-06 17:17 +0000
    Re: Simple protocol analyzer? Tim Wescott <tim@seemywebsite.really> - 2013-08-06 13:00 -0500
      Re: Simple protocol analyzer? Grant Edwards <invalid@invalid.invalid> - 2013-08-06 18:48 +0000
        Re: Simple protocol analyzer? Tim Wescott <tim@seemywebsite.really> - 2013-08-06 14:33 -0500
          Re: Simple protocol analyzer? Frank Buss <fb@frank-buss.de> - 2013-08-07 14:52 +0200
          Re: Simple protocol analyzer? Les Cargill <lcargill99@comcast.com> - 2013-08-07 08:06 -0500
          Re: Simple protocol analyzer? Grant Edwards <invalid@invalid.invalid> - 2013-08-07 14:48 +0000
          Re: Simple protocol analyzer? rickman <gnuarm@gmail.com> - 2013-08-07 23:25 -0400
            Re: Simple protocol analyzer? John Devereux <john@devereux.me.uk> - 2013-08-08 08:44 +0100
              Re: Simple protocol analyzer? Grant Edwards <invalid@invalid.invalid> - 2013-08-08 12:57 +0000
        Re: Simple protocol analyzer? Clifford Heath <no.spam@please.net> - 2013-08-07 22:42 +1000
          Re: Simple protocol analyzer? Grant Edwards <invalid@invalid.invalid> - 2013-08-07 15:02 +0000
            Re: Simple protocol analyzer? Grant Edwards <invalid@invalid.invalid> - 2013-08-07 15:15 +0000
            Re: Simple protocol analyzer? Clifford Heath <no.spam@please.net> - 2013-08-08 08:50 +1000

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