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You can first try to scan the ID range 700 - 7FF, as all currently
known e-Up devices are in that range.<br>
<br>
If you scan for unknown devices, you need to try different standard
requests and check for responses on all CAN IDs, as ISO-TP allows
devices to respond with arbitrary IDs.<br>
<br>
In case of no unknown OBD/ISO-TP responses you may also try doing a
CANopen scan:<br>
<a
href="https://docs.openvehicles.com/en/latest/components/canopen/docs/Howto-detect-CANopen-nodes.html">https://docs.openvehicles.com/en/latest/components/canopen/docs/Howto-detect-CANopen-nodes.html</a><br>
<br>
…but chances are possibly low VW mixes ISO-TP with CANopen devices
(Renault does).<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 31.07.20 um 10:54 schrieb Mark
Webb-Johnson:<br>
</div>
<blockquote type="cite"
cite="mid:B7E0F74A-92EA-4315-9F67-630029A20907@webb-johnson.net">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
The other suggestion I have is to see if the gateway itself is
alive for query. If you know the gateway ECU can bus arbitration
ID (assuming you are not already doing that for polling). Perhaps
it responds to a normal OBDII standard poll (for things like
speed, etc), or a UDS style diagnostic query.
<div class=""><br class="">
</div>
<div class="">Regards, Mark.<br class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On 31 Jul 2020, at 3:50 PM, Michael Balzer
<<a href="mailto:dexter@expeedo.de" class=""
moz-do-not-send="true">dexter@expeedo.de</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8" class="">
<div class=""> Soko,<br class="">
<br class="">
you only had the door open, but not turned on the car?
If there are additional buses, they may be switched off
until the car is turned on…<br class="">
<br class="">
The OBD connector scheme is the general pin assignment,
I meant the specific VW e-Up schematics. But if you
don't see any voltages with the car turned on, that's
bad news.<br class="">
<br class="">
There may still be some command interface for the OBD
gateway to enable live data, but without any info about
the gateway, it will be hard to even find out how to
address it.<br class="">
<br class="">
Regards,<br class="">
Michael<br class="">
<br class="">
<br class="">
<div class="moz-cite-prefix">Am 31.07.20 um 09:06
schrieb Soko:<br class="">
</div>
<blockquote type="cite"
cite="mid:d26bd0bc-4f57-d727-1b86-183c030fbbb3@soko.cc"
class="">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8" class="">
<p class="">Hey guys,</p>
<p class="">If I did nothing wrong I have bad news:</p>
<p class="">@Michael:<br class="">
With OBD port schematics I think you mean this <a
class="moz-txt-link-freetext"
href="https://en.wikipedia.org/wiki/On-board_diagnostics#OBD-II_diagnostic_connector"
moz-do-not-send="true">https://en.wikipedia.org/wiki/On-board_diagnostics#OBD-II_diagnostic_connector</a><br
class="">
Specifically if there are some other pins used than
the standard CAN pins 6 and 14.<br class="">
So I had the drivers door open, no key in ignition
and measured the voltages of all pins in relation to
pin 5 (signal ground). There is no voltage on any
pin besides 2.5V on 6 and 14, and 12V on 16 of
course. So there are no hidden CAN buses (or any
other signals) afaict.</p>
<p class="">@Mark:<br class="">
Thanks for the hint with the can log. It's way
easier than RE Tools for just checking if there is
any traffic.<br class="">
Having said that... there is no traffic whatsoever
besides what I am polling and the reply. Even when
ignition is on I only see the poll and the reply on
the can log</p>
<p class="">So it seems devmarxx was right: The
gateway shields everything and there are even no
other hidden signals on the OBD port.</p>
<p class="">I'm happy to try any other ideas you guys
have. Just let me know!</p>
<p class="">Soko<br class="">
</p>
<div class="moz-cite-prefix"><br class="">
</div>
<div class="moz-cite-prefix">On 31.07.2020 02:11, Mark
Webb-Johnson wrote:<br class="">
</div>
<blockquote type="cite"
cite="mid:9A478EA0-DC29-4367-A25D-9407EAEB2E8F@webb-johnson.net"
class="">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8" class="">
If you are just looking for traffic on the CAN bus,
a simple can log would be the easiest. Assuming you
are on USB console, it is:
<div class=""><br class="">
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">OVMS# log level verbose
canlog-monitor</div>
<div class="">OVMS# can log start monitor crtd</div>
</blockquote>
<div class="">
<div class=""><br class="">
</div>
<div class="">If you are using ssh, you need to
add a:</div>
<div class=""><br class="">
</div>
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div class="">OVMS# log monitor yes</div>
</div>
</blockquote>
<div class="">
<div class=""><br class="">
</div>
<div class="">To stop the logging:</div>
<div class=""><br class="">
</div>
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div class="">OVMS# can log stop</div>
</div>
</blockquote>
<div class="">
<div class=""><br class="">
</div>
<div class="">Documentation here:</div>
<div class=""><br class="">
</div>
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div class=""><a
href="https://docs.openvehicles.com/en/latest/crtd/can_logging.html"
class="" moz-do-not-send="true">https://docs.openvehicles.com/en/latest/crtd/can_logging.html</a></div>
</div>
</blockquote>
<div class="">
<div class=""><br class="">
</div>
<div class="">
<div class="">
<div class="">For my work, I personally prefer
this arrangement:</div>
<div class=""><br class="">
</div>
</div>
<blockquote style="margin: 0px 0px 0px 40px;
border: none; padding: 0px;" class="">
<div class="">OVMS# can log start tcpserver
transmit gvret-b :23</div>
</blockquote>
<div class="">
<div style="caret-color: rgb(0, 0, 0);"
class=""><br class="">
</div>
</div>
<div style="caret-color: rgb(0, 0, 0);" class="">And
then I use <a href="https://www.savvycan.com/"
class="" moz-do-not-send="true">SavvyCAN</a> on
a laptop to connect over wifi and work.</div>
<div style="caret-color: rgb(0, 0, 0);" class=""><br
class="">
</div>
</div>
<div class="">Regarding the ‘re’ system, it is a
work-in-progress, and not currently documented.
It is still kind of a mess at the moment
(particularly for multiplexed message IDs), as I
continue to work on DBC integration. That said,
it is basically functional.</div>
<div class=""><br class="">
</div>
</div>
<div class="">To start it:</div>
<div class=""><br class="">
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div class="">OVMS# re start</div>
</div>
</blockquote>
<div class="">
<div class=""><br class="">
</div>
<div class="">To stop it:</div>
<div class=""><br class="">
</div>
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div class="">OVMS# re stop</div>
</div>
</blockquote>
<div class="">
<div class=""><br class="">
</div>
<div class="">To see discovered IDs:</div>
<div class=""><br class="">
</div>
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div class="">OVMS# re list</div>
</div>
</blockquote>
<div class="">
<div class=""><br class="">
</div>
<div class="">It will (by default) listen on all
open CAN buses, and show you the discovered ID,
message count, interval (in ms), and last
message seen.</div>
<div class=""><br class="">
</div>
<div class="">It has some rudimentary ability to
monitor active polling protocols with ‘re obdii
extended <min> <max>’ (or standard),
specifying the range of IDs used by the ECUs.</div>
<div class=""><br class="">
</div>
</div>
<div class="">
<div class="">Regards, Mark</div>
<div class=""><br class="">
<blockquote type="cite" class="">
<div class="">On 30 Jul 2020, at 11:56 PM,
Soko <<a href="mailto:ovms@soko.cc"
class="" moz-do-not-send="true">ovms@soko.cc</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<meta http-equiv="Content-Type"
content="text/html; charset=UTF-8"
class="">
<div class="">
<p class="">@devmarxx: Is there any
doc/guide on how to use this RE Tools?</p>
<p class="">@Michael: Yeah, I know. You
would have done my 1-day work in 5 mins.
I know C++ but I don't know the OVMS
framework. But its like with any
project: The issue is not the language,
its the framework.</p>
<p class="">Until you have yours you have
to settle with me unfortunately ;)</p>
<p class="">My cousin has a working VCDS
HEX interface and I have an y-adapter so
I can listen with an ELM327 adapter to
the commands VCDS is sending. Maybe I
can find any car status there. Device 09
is a good hint. <br class="">
</p>
<p class="">But as you said: I have still
have to poll this, even if I find a
status.</p>
<p class="">I can't say (of course) if
there's another CAN bus @ OBD port. All
this CAN/OBD/Bus stuff is completely new
to me.. ModBus RTU/TCP, MBus etc. I
would know ;)</p>
<p class="">So if you can point me in any
direction what to try - or what you
would do - I happy to dig into it.</p>
<p class="">Soko</p>
<p class="">PS: Any idea when you'll get
your Mii?<br class="">
</p>
<div class="moz-cite-prefix">On 30.07.2020
17:14, Michael Balzer wrote:<br class="">
</div>
<blockquote type="cite"
cite="mid:193a06ae-81aa-52a0-047e-6bde5107dbdc@expeedo.de"
class="">
<meta http-equiv="Content-Type"
content="text/html; charset=UTF-8"
class="">
If only I had my Mii already…<br
class="">
<br class="">
If the OBD port is shielded from the CAN
traffic, you need to poll some device.
ECU = Engine Control Unit = device 01.<br
class="">
<br class="">
I would suspect the basic car status
info to be available from device 09
(central electrics), but it seems no
PIDs have been RE'd from there yet. So
maybe you need to derive the info from
some other mode/status register.<br
class="">
<br class="">
It's bad needing to continuosly poll to
get the live status data. Is possibly
another, unfiltered CAN bus available at
the OBD port?<br class="">
<br class="">
Regards,<br class="">
Michael<br class="">
<br class="">
<br class="">
<div class="moz-cite-prefix">Am 30.07.20
um 16:43 schrieb Soko:<br class="">
</div>
<blockquote type="cite"
cite="mid:c46c65de-ae20-f2db-4c2b-052843756691@soko.cc"
class="">
<meta http-equiv="Content-Type"
content="text/html; charset=UTF-8"
class="">
<p class="">Ahhh OK, I've found
OvmsVehicle::virtual void
TickerXXX(uint32_t ticker);<br
class="">
Got it! This was exactly my issue as
I didn't know about any function
which gets called regularly so I
could check something like this...<br
class="">
It's not an ideal situation though:
I just can slow down the poll after
my fail-counter gets too high as I
need to check when the car gets
powered again. So all I can do is
polling, lets say every 60 secs when
the car is off, and increase it once
its on. But there is now way around
this 60-sec polling if the only
thing I can do is poll :(<br
class="">
</p>
<p class="">Afaik there is only the
sharkcow's list below, reverse
engineered by him from ODBeleven.</p>
<p class="">(dev)marxx exlpained to
me: There is a gateway between the
CAN-Buses and the OBD Connector in
all VW-AG vehicles which only
replies to polls and also acts as
security gateway if you want to
write to the buses.</p>
<p class="">So I think I cannot really
do a can log or use re tool as the
OBD interface stays quiet if I'm not
polling it...</p>
<p class="">And as there is no other
vehicle from VW,Seat,Skoda,Audi,etc.
in OVMS. So I have no cheat-sheet :(</p>
<p class="">Anyhow... I would need to
poll one ECU (is this the correct
therm?) which doesn't shuts down...
or maybe the issue is the
OBD-gateway shutting down.<br
class="">
</p>
<p class="">What do you think?</p>
<p class="">Soko<br class="">
</p>
<div class="moz-cite-prefix">On
30.07.2020 16:17, Michael Balzer
wrote:<br class="">
</div>
<blockquote type="cite"
cite="mid:429f9711-74bd-828c-0c9c-3872f9b0bfac@expeedo.de"
class="">
<meta http-equiv="Content-Type"
content="text/html; charset=UTF-8"
class="">
Soko,<br class="">
<br class="">
nice progress :-)<br class="">
<br class="">
If you can't detect vehicle state by
listening to regular status CAN
frames, you can check the time since
the last poll reply in the per
second ticker.<br class="">
<br class="">
As poll replies normally come in
fast, you should be able to detect a
switch-off by a small timeout, say 3
seconds… probably need to add a
counter, as a single poll may get
lost / ignored.<br class="">
<br class="">
CAN tx errors can be caused by other
issues as well, so should generally
not be interpreted that way.<br
class="">
<br class="">
But… are you sure there are no
status frames on the bus? Have you
done a can log or tried the re tool?<br
class="">
<br class="">
Regards,<br class="">
Michael<br class="">
<br class="">
<br class="">
<div class="moz-cite-prefix">Am
30.07.20 um 14:43 schrieb Soko:<br
class="">
</div>
<blockquote type="cite"
cite="mid:dfef03ed-b0e1-1fda-7eab-de5b6e49cc67@soko.cc"
class="">Hi guys, <br class="">
<br class="">
Want to report success on
connecting and reading my VW e-Up
via OBD cable using the Poller. As
you can see in the screenshot of
the log attached I get an
IncomingPollReply(..) call and an
SoC value of 33.333% <br class="">
<br class="">
Once I turn of the ignition and
lock the car though I don't get
any replies no more (line D
793813) and then I get can1
errors... I'm polling with 10
seconds intervall. <br class="">
<br class="">
I know that this is as it should
be... but my issue is: I don't
have any way to know if the
ignition is on, the key is in, the
car is running, the car is
charging as the PIDs are not known
for such values (afaik by the
lists of sharkcow <a
class="moz-txt-link-freetext"
href="https://www.goingelectric.de/wiki/Liste-der-OBD2-Codes/"
moz-do-not-send="true">https://www.goingelectric.de/wiki/Liste-der-OBD2-Codes/</a>).
<br class="">
<br class="">
So what would be the best approach
to change the different polling
states? Can I somehow get called
(in my vehicle-class) if an
can-error is thrown? Then I would
increase the poll frequency. <br
class="">
<br class="">
Any suggestions? <br class="">
<br class="">
thanks <br class="">
<br class="">
Soko <br class="">
<br class="">
<br class="">
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