the perl code (OWNet.pm) uses:
# PresenceCheck, Return bus list, and apply aliases
my $DEFAULT_SG = 0x100 + 0x2 + 0x8 ;
One suggestion is to run owserver with debugging (--debug). The
interpretation of the incoming message is pretty well parsed in the output.
type 7 (DIRALL) is probably the best choice.
Yes, owread gets the temps over tcp. In fact, owread will work remotely and
you can wireshark it.
On Wed, Mar 13, 2013 at 10:53 AM, Hans Erik Busk <[email protected]> wrote:
> Thank you for helping.
>
> Your suggestion did avoid the error, but I still have no succes in
> getting data back from the owserver.
>
> I have tried several permutations of message types (4, 7, 8) and format
> flags (ownet_flag, persistence) but I only get tcp-frames without data
> content back from the server.
>
> My dataframe from client is now like:
> 0030 fa f0 e0 3b 00 00) [00 00 00 00 00 00 00 01 00 00 ...;....
> ........
> 0040 00 04 00 00 01 04 00 00 00 00 00 00 00 00 2f] ........ ....../
>
> and the info fram Wireshark looks like:
>
> time
> 0.000000 52838 > owserver [SYN]
> 0.000486 owserver > 52838 [SYN, ACK]
> 0.000574 52838 > owserver [ACK]
> 2.607654 52838 > owserver [PSH, ACK] contains the dataframe above
> 2.608142 owserver > 52838 [ACK]
> 2.608504 owserver > 52838 [FIN, ACK]
> 2.608542 52838 > owserver [ACK]
>
> when I stop the testapplication I get further:
>
> 22.598495 52838 > owserver [FIN, ACK]
> 22.599094 owserver > 52838 [ACK]
>
> I do not understand why owserver sendt the [FIN, ACK] at time 2.607654
> instead of a dataframe with [PSH, ACK]
>
> I assume that version=0000 and offset=0000 is correct, but I am
> uncertain about sg flags. It says in the docs:
> "0x00000100 Ownet request (included for all ownet messages)",
> does that mean both from client and from server, and are any of the
> flags mandatory?
>
> I can still read the temps locally:
> pi@raspberrypi ~ $ sudo /opt/owfs/bin/owread
> /28.991049010000/temperature /28.D43C49010000/temperature
> 12.375 23.75
>
> and as I understand it, owread also get the temps over TCP ?
>
>
>
> --
> --
> Yours
> Hans Erik Busk
>
>
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