count-down issue

[Hy Murveit]

François,

I believe that Wolfgang is looking into checking every second on the Ekos
end, even if RA/DEC haven't changed even though newRaDec() only signals
changes when the Ra/Dec values do change.  You should probably wait for
that to happen.

If that doesn't happen, you can always trigger the signal by explicitly
writing the RA/DEC values, changed or not, in ReadScopeStatus.

EqN[AXIS_RA].value = currentRA;
EqN[AXIS_DE].value = currentDEC;


Hy

On Thu, Feb 17, 2022 at 12:18 PM François Desvallées <
fdesvallees at mailbox.org> wrote:

> Hello:
> Do we have a resolution on this? On my side I did some debugging and
> confirmed that my driver does report its coordinates every second via
> ReadScopeStatus() even if they did not change.
>
> But when tracking without guiding the coordinates never change, and the MF
> counter does not update. If I change the coordinates externally (via the
> handset for example), then the MF counter does update.
>
> Is there anything I can do in the driver to fix this?
>
> Thank you
> François
>
> On 16/02/2022 16:33 Wolfgang Reissenberger <sterne-jaeger at openfuture.de>
> wrote:
>
>
> I think I could explain it. Running with the Telescope Simulator, the old
> and the new value at least on RA is *slightly* different in a range of
> 10^-8 and therefore at least for the simulator the coordinates update
> happens all the time.
>
> The question is: should we rework it in Ekos or in INDI? In INDI it’s a
> matter of one single line, in EKOS it’s quite an effort (and we need a new
> timer).
>
> Cheers
> Wolfgang
> —
> Wolfgang Reissenberger
>
> www.sterne-jaeger.de
> TSA-120 + FSQ-85 + epsilon-160 | Avalon Linear + M-zero | ASI 1600mm pro +
> 6200mm pro
>
> Am 16.02.2022 um 09:56 schrieb Jasem Mutlaq <mutlaqja at ikarustech.com>:
> Sorry, I was referring to INDI:
> https://github.com/indilib/indi/blob/f479114a60cddb7c4209e83824702de4efd58245/libs/indibase/inditelescope.cpp#L711
>
> --
> Best Regards,
> Jasem Mutlaq
>
>
>
> On Wed, Feb 16, 2022 at 11:28 AM Wolfgang Reissenberger <
> sterne-jaeger at openfuture.de> wrote:
>
> I’m not sure whether I get it right. Inditelescope.cpp::248 has this
> entry:
>
>         emit newCoords(currentCoords, pierSide(), hourAngle());
>
>
> This is unconditional, there is no check whether currentCoords equal the
> previous one.
>
> Or are you talking about another place?
>
> Am 16.02.2022 um 09:22 schrieb Jasem Mutlaq <mutlaqja at ikarustech.com>:
>
> I don't think Ekos should depend on this behavior. INDI::Telescope
> doesn't send updates when the previous values are identical.
>
> --
> Best Regards,
> Jasem Mutlaq
>
>
> On Wed, Feb 16, 2022 at 11:09 AM Wolfgang Reissenberger
> <sterne-jaeger at openfuture.de> wrote:
>
>
> Ekos relies upon the INDI driver that it regularly sends the
>  EQUATORIAL_EOD_COORD coordinates - no matter whether they change or not.
> The frequency is defined by the polling period defined in the INDI driver.
>
> If for whatever reason the INDI driver does not send them, the MF counter
> won’t be updated.
>
> We could indeed discuss whether it makes sense that Ekos relies upon a
> regular update even if values do not change. But currently, at least for
> the scope coordinates, it does.
>
> HTH
> Wolfgang
>
> Am 16.02.2022 um 08:49 schrieb Jasem Mutlaq <mutlaqja at ikarustech.com>:
>
> Hello Hy,
>
> I don't believe this is an INDI driver issue. The driver is behaving
> as it should. Ekos should do this. Also, I've been using this with
> EQMod for many years and it works just fine, so what gives?
>
> --
> Best Regards,
> Jasem Mutlaq
>
>
> On Wed, Feb 16, 2022 at 1:38 AM Hy Murveit <murveit at gmail.com> wrote:
>
>
> I was noticing on the forum a thread you responded to where users were
> complaining that the meridian-flip count-down wasn't working for their
> Onstep mount.
>
> I had/fixed/hacked the same problem on my A-P driver.
>
> Here's what I believe is likely happening to them.
>
> The MF count-down is updated in a callback method that's watching the
> RA/DEC from indi.
> That is, in mount.cpp, updateTelescopeCoords calls checkMeridianFlip()
>  which does the updating of the counter.  However, updateTelescopeCoords is
> only called when the slot newCoords is hit. That signal is likely only sent
> when the RA/DEC change, but when the scope is tracking, the RA and DEC
> don't change!
>
> I saw that my driver wasn't updating its MF counter either (and
> presumably, therefore wouldn't flip), but I know my old Eqmod mount did
> work fine, so I assumed it was an issue in my A-P driver.  FWIW, I added
> this hack in my driver to get around the check for newness in newRaDec.
>
> Hy
>
>
>
>
>
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