Jump to content

sgl_imaging_challenge_2021_2.thumb.jpg.72789c04780d7659f5b63ea05534a956.jpg

AVX mount, serial connection issues with current firmware levels


Recommended Posts

I can confirm that there are issues with connecting via serial to the Nexstar+ handset on the AVX mount with the latest firmware . I'm currently trying to guarantee the behaviour process I'm seeing but it's intermittent and that is annoying when trying to troubleshoot. I'm having problems in getting repeatability of the issues being seen, but this is the most consistent behaviour I'm getting.

The behaviour I'm seeing is:
With everything powered off, I connect up the cables between my SkyFi and the handset. I put the handset in the cradle so it doesn't move. I've previously modified the cradle to allow the serial cable free access to the handset port when connected.
I power up the SkyFi, and I confirm I have connection to my wifi router.
I power on the mount and awaken from hibernation, entering the date and time (without moving the handset from the cradle), and the mount sits at the standard prompt on the screen, and the mount has started tracking.
Trying to connect via SkySafari 4 on my tablet, I get an error that I can make the wifi connection but not to the mount itself.
Touching nothing else I gently tap the "2" button to get to the Stars menu, then I hit "back" and exit out of that submenu back to the main prompt.
Attempting to connect again on the tablet, I immediately get the telescope connection and it appears stable for the rest of the session.

It's not likely to cabling, as I've exchanged out all of the SkyFi to serial cabling, and I'm seeing computer serial port difficulties as well. If it were cabling it would not just start working each time at the same point when I've exited the submenu.It really does look as though the handset doesn't communicate on the handset serial port until submenus have been entered and exited from. 

As an aside, when the mount is pointing exactly at 90 degrees declination, it actually reports itself on the serial port as being at 0 degrees declination. Interesting way of avoiding the RA singularity at that point.

My mount's firmware levels are current as of January 10th at least.

Link to post
Share on other sites

Hi,

This sounds like a similar issue I am having with my Celestron AVX mount.

My thread is here

https://stargazerslounge.com/topic/261236-avx-mount-and-ascom-issue/

I have chased Celestron three times and have heard nothing. Logged a new call earlier, their after support is truly appalling. :angry5:

Since my post I switched the USB to Serial cable and that had no effect. I have a new serial cable on order from FLO but it is highly unlikely it will be that, so just throwing money down the drain!

My Firmware is currently:

HC: GEM 5.28.5300 - app version
Nex Star+ 3.1.5075 - Boot version
MC: 7.11.5056 - app version

Is that the same as yours?

I have seen your other post.

Hopefully we can join forces on this but I am beginning to suspect a new Hand Controller....

Link to post
Share on other sites
  • 2 months later...

I have a similar problem with the AVX and he original SkyQ WiFi.

It often reports that it has a connection, but that the mount i snot responding.

Being the SkyQ, I'm not conning through the hand controller - in fact, most times, it is not even connected - so I am wondering if it is hand controller related at all?

Be happy to hear of any solutions.

Link to post
Share on other sites
  • 1 month later...

HI All,

Did you fix this issue, I have a similar trouble with my CGEM. After flashing the Firmware HC (Nexstar+) , I am not able to see the MC.

HC: GEM 5.28.5300 (updated through CFM)

NexStar+ 3.1.5075 (Updated through CFM)

MC : ??.???.??  (before flashing HC the Motor Control version was MC: 6.50 6.50)

Thanks.

 

 

Link to post
Share on other sites
  • 3 weeks later...

I found that most of the USB to serial converters do not perform as they should, they s...
As far as I can see converters with a FTDI chipset are the only reliable ones, especially when the signal gets a bit complex.

I am not in bussiness with FTDI (regretably)

Waldemar

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By kevenh
      A week or so I good I did some preliminary research for a decent 32mm eyepiece.  Looking at my results today I went for budget but decent.
      I have ended up with a shortlist of: -
      Revelation 32.0mm Plossl Eyepiece 1.25"
      Celestron 93323 1-1/4-32 mm Omni Series Eyepiece
      Baader Planetarium 32 mm Classic Ortho Eyepiece
       
      My query today as I recheck my findings is the Revelation one.  That is coming up at almost half the price of the other two (at www.telescopehouse.com)
      But this eyepiece made my shortlist due to positive comments about the GSO build.
      So, finally, my question, does the purchase price suggest this 32mm isn't a GSO?
      No rush here.  It's a wish list not a need list - as I remind myself... lol
    • By kevenh
      So the little circular bubble level is weak.
      But how to improve the levelling stage a head of the alignment stage?
      A traditional level like this one
      Or a simple multi purpose one like this one?
      And we do this on the tripod before adding the mount & OTA?
      The mount looks gently curved. How do we check that for level or do we trust the ‘fit’?
    • By Matt1981g
      Hi 
      I’m attempting to get back into astronomy, previously owned a 150pl reflector but parted company with it several years ago, I like the idea of a Cassegrain style as one of the big factors Of letting the 150pl go. was storage and transportation of It! I am interested in mostly visual observations but would look to take a few pictures here and there OF planets and easy nebula/DSO., I feel that a Schmidt-Cassegrain would be the best suited, my main stumbling point is should I get the 5 or 6 version. Is the 6 under mounted? And is it worth the extra cash, obviously there’s a higher light gathering power on the 6 but would it be much better than the 5, I see that the % of lens obstruction on the seems high! As the secondary mirror looks to be the same size on both 40% vs 14%! Obstruction by area. Any guidance would be very appreciated. I’m not against the idea of upgrading the mount in the future to a eq5 maybe? But want in usable to start with.
       
    • By Dodger3k
      Hi all, looking for some help please! 🙏 I have a wedge for my 8SE and when using EQ North to align it, it says it is slewing to Vega but ends up all the way over at Polaris!?  Any ideas? 🤞🏻 Thanks in advance! 😊
       
      I have updated the firmware, Mount is pointing at north, have inputted my latitude and longitude, I have tried picking the nearest city too and nothing seems to work! 😟
    • By stthomse
      Hi all.
      I have just bought a Celestron 18771-CGL power tank to allow me to get out to the dark skies of the South Downs with my Nexstar 8SE. This is a great bit of kit because it's so light and portable and powers the scope for hours no problem. However, I've also been thinking about getting a dew heater and the only downside of the power tank is it's lack of a second 12v output. I was looking on the First Light Optics website and they sell a DC splitter cable to allow two devices to be powered from a single output. I'm not an electrician obviously, but logical tells me if the dew heater controller is also a 12v device there should be no problem running both the scope and the heater at the same time other than draining the battery faster. Is anyone using a splitter cable in this way? Or can anyone confirm my logic is flawed?
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.