From: tonyg <tonythegair@gmail.com>
Subject: Re: GNAT.Serial_Communications
Date: Sat, 16 Apr 2011 03:19:18 -0700 (PDT)
Date: 2011-04-16T03:19:18-07:00 [thread overview]
Message-ID: <abeb3bf6-0587-4572-af6e-85d2e14a32c8@e8g2000vbz.googlegroups.com> (raw)
In-Reply-To: iobk21$dis$1@dont-email.me
On Apr 16, 9:29 am, Simon Clubley <clubley@remove_me.eisner.decus.org-
Earth.UFP> wrote:
> On 2011-04-15, tonyg <tonytheg...@gmail.com> wrote:
>
>
>
> > This is making a lot of sense to me. Minicom is working perfectly with
> > setting the commands on the electronics. However for some reason, the
> > same commands relayed by the ada program are simply not received.
>
> > There does not seem a way in GNAT.Serial_Communications to disable
> > hardware and software flow control, I'll have a look at how linux does
> > it.
>
> Have you compared the _full_ output from stty yet when Minicom and your
> program are running ?
>
> As I mention above, there are other possible failure modes and the full
> output from stty will tell you if flow control is enabled on the port or
> not. Checking the flow control is just the first thing I would check;
> it is not the only thing.
>
> Read the man page for stty. :-) You may save yourself quite a bit of time
> if the flow control settings are not the problem.
>
> Simon.
>
> --
> Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
> Microsoft: Bringing you 1980s technology to a 21st century world
This is the full output when minicom is running
tony@tony-workstation:~$ stty --file=/dev/ttyUSB0
speed 115200 baud; line = 0;
eof = ^A; min = 1; time = 5;
ignbrk -brkint -icrnl -imaxbel
-opost -onlcr
-isig -icanon -iexten -echo -echoe -echok -echoctl -echoke
tony@tony-workstation:~$
This is the full output when the ada program is running
tony@tony-workstation:~$
tony@tony-workstation:~$ stty --file=/dev/ttyUSB0
speed 115200 baud; line = 0;
eof = ^A; min = 0; time = 100;
-brkint -icrnl -imaxbel
-opost -onlcr
-isig -icanon -iexten -echo -echoe -echok -echoctl -echoke
tony@tony-workstation:~$
The differences are ignbrk flag is up on the minicom readout and min
=1. I assume the time=100 bit is from the timeout parameter set
procedure in gnat.serial_communication.
Another thing occurred to me is that do I need to open the same port
twice for my read calls and my write calls. i.e. have two variables
read_port, write_port : gnat.serial_communications.serial_port;
which both open ttyUSB0 ? or I am barking up the wrong tree
next prev parent reply other threads:[~2011-04-16 10:19 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-11 10:26 GNAT.Serial_Communications tonyg
2011-04-11 11:11 ` GNAT.Serial_Communications Brian Drummond
2011-04-13 7:49 ` GNAT.Serial_Communications tonyg
2011-04-13 14:12 ` GNAT.Serial_Communications Alex Mentis
2011-04-13 21:12 ` GNAT.Serial_Communications tonyg
2011-04-14 13:15 ` GNAT.Serial_Communications Alex Mentis
2011-04-14 17:52 ` GNAT.Serial_Communications Chris Moore
2011-04-15 13:58 ` GNAT.Serial_Communications tonyg
2011-04-15 16:32 ` GNAT.Serial_Communications tonyg
2011-04-15 17:12 ` GNAT.Serial_Communications Simon Clubley
2011-04-15 17:32 ` GNAT.Serial_Communications tonyg
2011-04-15 18:49 ` GNAT.Serial_Communications Simon Clubley
2011-04-16 0:07 ` GNAT.Serial_Communications tonyg
2011-04-16 8:29 ` GNAT.Serial_Communications Simon Clubley
2011-04-16 10:19 ` tonyg [this message]
2011-04-16 10:33 ` GNAT.Serial_Communications tonyg
2011-04-16 11:15 ` GNAT.Serial_Communications Brian Drummond
2011-04-16 12:03 ` GNAT.Serial_Communications tonyg
2011-04-16 15:12 ` GNAT.Serial_Communications Simon Clubley
2011-04-18 20:31 ` GNAT.Serial_Communications tonyg
2011-04-18 20:43 ` GNAT.Serial_Communications tonyg
2011-04-19 11:46 ` GNAT.Serial_Communications tonyg
2011-04-19 12:09 ` GNAT.Serial_Communications Ludovic Brenta
2011-04-19 13:53 ` GNAT.Serial_Communications tonyg
2011-04-19 19:06 ` GNAT.Serial_Communications Ludovic Brenta
2011-04-19 19:57 ` GNAT.Serial_Communications Alex Mentis
2011-04-20 11:37 ` GNAT.Serial_Communications tonyg
2011-04-20 14:22 ` GNAT.Serial_Communications Alex Mentis
2011-04-21 9:00 ` GNAT.Serial_Communications tonyg
2011-04-21 13:28 ` GNAT.Serial_Communications Alex Mentis
2011-04-22 13:55 ` GNAT.Serial_Communications Alex Mentis
2011-04-22 15:52 ` GNAT.Serial_Communications Brian Drummond
2011-04-19 13:32 ` GNAT.Serial_Communications Simon Clubley
2011-04-19 16:59 ` GNAT.Serial_Communications Simon Clubley
2011-04-20 10:17 ` GNAT.Serial_Communications Brian Drummond
2011-04-20 20:46 ` GNAT.Serial_Communications Brian Drummond
2011-04-21 4:28 ` GNAT.Serial_Communications Simon Wright
2011-04-21 9:12 ` GNAT.Serial_Communications tonyg
2011-04-21 10:14 ` GNAT.Serial_Communications tonyg
2011-04-22 15:54 ` GNAT.Serial_Communications Brian Drummond
2011-04-22 16:14 ` GNAT.Serial_Communications Simon Wright
2011-04-21 11:56 ` GNAT.Serial_Communications Simon Clubley
2011-04-15 18:01 ` GNAT.Serial_Communications Jeffrey Carter
2011-04-16 10:21 ` GNAT.Serial_Communications tonyg
2016-12-01 19:58 ` GNAT.Serial_Communications mario.blunk.gplus
2017-03-20 15:20 ` GNAT.Serial_Communications Jacob Sparre Andersen
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