count-down issue

[Jasem Mutlaq]

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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