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Messages - jonkjon

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1
Additionally, here is the ouput from the DDR status monitor along with some notations:

***Frames 1-3 all hung - no download

Begin Capture the 1 frame
Current DDR buffer capacity - 25148
Current DDR buffer capacity - 805
Current DDR buffer capacity - 8394
Current DDR buffer capacity - 15853
Current DDR buffer capacity - 16761
Current DDR buffer capacity - 16729
End Capture.
End Capture.
End Capture.
End Capture.
Begin Capture the 2 frame
Current DDR buffer capacity - 16729
Current DDR buffer capacity - 575
Current DDR buffer capacity - 8232
Current DDR buffer capacity - 16399
Current DDR buffer capacity - 17941
Current DDR buffer capacity - 17901
End Capture.
Begin Capture the 3 frame
Current DDR buffer capacity - 17901
Current DDR buffer capacity - 663
Current DDR buffer capacity - 8277
Current DDR buffer capacity - 16489
Current DDR buffer capacity - 17514
Current DDR buffer capacity - 17474
End Capture.

*******Here frame 4 downloaded with poor quality vertical lines and static****
The next frames 5-7 hung

Begin Capture the 4 frame
Current DDR buffer capacity - 17474
Current DDR buffer capacity - 16465
Current DDR buffer capacity - 32856
Current DDR buffer capacity - 28896
Current DDR buffer capacity - 24896
Current DDR buffer capacity - 20896
Current DDR buffer capacity - 16896
Current DDR buffer capacity - 12910
Current DDR buffer capacity - 8910
Current DDR buffer capacity - 4910
Current DDR buffer capacity - 910
Current DDR buffer capacity - 6
End Capture.
Begin Capture the 5 frame
Current DDR buffer capacity - 6
Current DDR buffer capacity - 8222
Current DDR buffer capacity - 17460
Current DDR buffer capacity - 17420
End Capture.
End Capture.
End Capture.
End Capture
Begin Capture the 6 frame
Current DDR buffer capacity - 17420
Current DDR buffer capacity - 627
Current DDR buffer capacity - 8246
Current DDR buffer capacity - 8451
Current DDR buffer capacity - 18295
Current DDR buffer capacity - 18255
End Capture.
End Capture.
Begin Capture the 7 frame
Current DDR buffer capacity - 18255
Current DDR buffer capacity - 584
Current DDR buffer capacity - 676
Current DDR buffer capacity - 9517
Current DDR buffer capacity - 9728
Current DDR buffer capacity - 23382
Current DDR buffer capacity - 23350
End Capture.

***Disconnect the camera via software (SGP) button and then click button again and reconnect***
***Frame 0 hung***

Begin Capture the 0 frame
Current DDR buffer capacity - 23350
Current DDR buffer capacity - 9386
Current DDR buffer capacity - 20607
Current DDR buffer capacity - 20599
End Capture.

***Disconnect the camera via software (SGP) button and physically remove camera USB from Hub***
***Reconnect camera via software button (SGP)***
***Frames download but beginning at frame 3 until frame 8, frames have bad quality and lines - unusable***
Begin Capture the 5 frame
Current DDR buffer capacity - 0, wait for data to enter.
Current DDR buffer capacity - 16389, start transferring data.
Current DDR buffer capacity - 32786
Current DDR buffer capacity - 28826
Current DDR buffer capacity - 24826
Current DDR buffer capacity - 20826
Current DDR buffer capacity - 16826
Current DDR buffer capacity - 12835
Current DDR buffer capacity - 8835
Current DDR buffer capacity - 4835
Current DDR buffer capacity - 835
Current DDR buffer capacity - 3
End Capture.
Begin Capture the 6 frame
Current DDR buffer capacity - 3
Current DDR buffer capacity - 16503
Current DDR buffer capacity - 32900
Current DDR buffer capacity - 28900
Current DDR buffer capacity - 24900
Current DDR buffer capacity - 20900
Current DDR buffer capacity - 16900
Current DDR buffer capacity - 12915
Current DDR buffer capacity - 8915
Current DDR buffer capacity - 4915
Current DDR buffer capacity - 915
Current DDR buffer capacity - 0, wait for data to enter.
End Capture.
Begin Capture the 7 frame
Current DDR buffer capacity - 0, wait for data to enter.
Current DDR buffer capacity - 16389, start transferring data.
Current DDR buffer capacity - 32780
Current DDR buffer capacity - 28820
Current DDR buffer capacity - 24820
Current DDR buffer capacity - 20820
Current DDR buffer capacity - 16820
Current DDR buffer capacity - 12829
Current DDR buffer capacity - 8829
Current DDR buffer capacity - 4829
Current DDR buffer capacity - 829
Current DDR buffer capacity - 5
End Capture.
Begin Capture the 8 frame
Current DDR buffer capacity - 5
End Capture.
End Capture.
End Capture.
End Capture.
End Capture.

***Disconnect the camera via software (SGP) button and physically touch power and camera USB connection on camera (did not disconnect)***
***Reconnect camera via software button (SGP)***
***First frame 0 failed to download.***
***Began next frame and first few images not good quality***
***Then most frames downloaded without issues***

Begin Capture the 6 frame
Current DDR buffer capacity - 0, wait for data to enter.
Current DDR buffer capacity - 1186, start transferring data.
Current DDR buffer capacity - 16389
Current DDR buffer capacity - 17007
Current DDR buffer capacity - 32780
Current DDR buffer capacity - 28820
Current DDR buffer capacity - 24820
Current DDR buffer capacity - 20820
Current DDR buffer capacity - 16820
Current DDR buffer capacity - 12829
Current DDR buffer capacity - 8829
Current DDR buffer capacity - 4829
Current DDR buffer capacity - 829
Current DDR buffer capacity - 5
End Capture.
Begin Capture the 7 frame
Current DDR buffer capacity - 5
Current DDR buffer capacity - 1186
Current DDR buffer capacity - 16389
Current DDR buffer capacity - 16833
Current DDR buffer capacity - 32780
Current DDR buffer capacity - 28780
Current DDR buffer capacity - 24780
Current DDR buffer capacity - 20780
Current DDR buffer capacity - 16780
Current DDR buffer capacity - 12789
Current DDR buffer capacity - 8789
Current DDR buffer capacity - 4789
Current DDR buffer capacity - 789
Current DDR buffer capacity - 0, wait for data to enter.
End Capture.
Begin Capture the 8 frame
Current DDR buffer capacity - 0, wait for data to enter.
Current DDR buffer capacity - 1186, start transferring data.
Current DDR buffer capacity - 16389
Current DDR buffer capacity - 17094
Current DDR buffer capacity - 32780
Current DDR buffer capacity - 28820
Current DDR buffer capacity - 24820
Current DDR buffer capacity - 20820
Current DDR buffer capacity - 16820
Current DDR buffer capacity - 12829
Current DDR buffer capacity - 8829
Current DDR buffer capacity - 4829
Current DDR buffer capacity - 829
Current DDR buffer capacity - 5
End Capture.
Begin Capture the 9 frame
Current DDR buffer capacity - 5
Current DDR buffer capacity - 1186
Current DDR buffer capacity - 16389
Current DDR buffer capacity - 17094
Current DDR buffer capacity - 32780
Current DDR buffer capacity - 28780
Current DDR buffer capacity - 24780
Current DDR buffer capacity - 20780
Current DDR buffer capacity - 16780
Current DDR buffer capacity - 12789
Current DDR buffer capacity - 8789
Current DDR buffer capacity - 4789
Current DDR buffer capacity - 0, wait for data to enter.
End Capture.
Begin Capture the 10 frame
Current DDR buffer capacity - 0, wait for data to enter.
Current DDR buffer capacity - 1234, start transferring data.
Current DDR buffer capacity - 16389
Current DDR buffer capacity - 16365
End Capture.
End Capture.
End Capture.
End Capture.


Any idea from this what might be happening?

2
I sent an email two days ago responding to this. Please read my above post which explains what I have already tried to do to fix this issue. (The SDK update was among them.) While unplugging the USB cable from the back of the camera as a required step to get the camera to work will "usually" get things working, I would like to know if this is how this is supposed to work and, if so, what causes this? Very frustrating...

3
Thanks I will send you an email. The camera download hangs with or without USB hub. I tested again this morning plugging the camera directly into the usb port of the pc and the 2nd frame hung. As a matter of fact, the camera usually doesn't download at all without using a powered hub.

--Jon

4
Just to give you some more information as to what I have tried:

Replaced USB3 cables with new ones (twice)
Tried using USB2 cables (twice)
Disconnected filter wheel completely
Several different USB3 powered hubs
Three different power supplies (Currently using a powerwerx 30A with grounded plug)
Updated firmware/software and SDK
Different Software Acquisition Packages (SGP,SharpCap, EZCAP_QT, N.I.N.A., Voyager)
Mini PC's, Laptops, and Indoor desktop PC via USB3 active repeater cable.
Used camera on its own hub and also direct connect to PC or Laptop via USB2 and USB3
Re-seated Ribbon cables per your instructions (This seemed to work at first but the problem came back the next use. I also tried taping the cable down per your instructions.)

It seems that if I connect all of my gear and while the camera is connected and powered up, I can disconnect and then reconnect the USB3 cable from the rear of the camera and it will work for some time. This almost always seems to help. However, it is not reliable as to how long it will continue to work.

--Jon

5
Yes, I am still having consistent issues with hanging downloads. I would like to set something up for assistance. I would need some advance notice so I can set up my imaging gear before the session. Thanks.

--Jon

6
While I am not certain I fully understand why, the camera has started to work. After much reading, it was suggested that it was better to place isochronous devices in one of the first 3 ports on a 7 port USB 3 hub. I moved the QHY163M into the first port of the hub and it has been working very reliably ever since. I did try to use the camera connected directly to one of the USB 3 ports on my PC but it did not work well there at all. I suppose the supplemental power provided by the hub made the difference. It seems that using a powered USB 3 hub along with fewer hops to the root hub of the PC because of relocating it to the first port is what is required to get this working.

7
I have owned my QHY163M for a couple of years and used it with USB2 with occasional garbled lines and hangs. I came to realize that the camera just doesn't work reliably without being connected to a powered hub with USB2. I had tried using the camera when it was new with USB 3 and it never worked reliably enough to get any use out of it that way so I resumed using USB 2 in hopes this was a driver issue. Well, here I am several years later and the USB3 issue still exists. I discovered this after upgrading to a new mount and other gear. I tried new USB 3 cables, usb 3 cables directly to pc, latest drivers, USB traffic to 0,20,30,60, new USB 3 hubs, different computers, different power supplies. Nothing fixes the problems with USB 3 hanging downloads and garbled frames. What's super annoying about this is that it will work one night but not the next morning or next night. You just cannot rely on USB 3 with this camera.
While reading through these forums over the years, I have seen many others with this problem but no consistent reason for the issue. I myself commented here in the past after checking the ribbon cables as suggested by Dr. Qiu. I would think that fixed the issue only to have it return a short while later.
Recently, I came across a post where Dr. Qiu  stated: "If the usb cable and computer socket is confirmed no problem by use another one. There do have a possible that the USB3.0 wire inside the camera has some problem. The USB2.0 and 3.0 is go though different line so if USB3.0 line has problem. USB2.0 line can work also."
Where can i check this USB3.0 wire? Is there a photograph you could provide pointing it out? If it is the problem, could I get one somewhere and have it shipped to me? I have checked the ribbon cables (white and brown) and re-seated them but that doesn't help.
Thanks for any information you can provide in sorting this out.

--Jon

8
QHYCCD Standard Software Q&A / Re: Polemaster Lag Time
« on: December 18, 2019, 10:14:29 PM »
So, after a bit more trial and error, this appears to be some sort of power issue. If I use a powered hub or leave the laptop connected to an adequate ac power source, the issue with Polemaster software goes away. Why doesn't this happen when using the Polemaster camera with SharpCap? Is there some difference in how SharpCap manages power to the camera? Is there something about Polemaster software that requires more power than SharpCap?

--Jon

9
QHYCCD Standard Software Q&A / Re: Polemaster Lag Time
« on: December 15, 2019, 09:43:13 PM »
Hi,

Yes. There is some reason why it seems to work in SharpCap but not Polemaster software. There must be something different.

--Jon

10
QHYCCD Standard Software Q&A / Re: Polemaster Lag Time
« on: December 14, 2019, 01:51:31 PM »
Messing around some more with this over the weekend and the only thing I could find that would work (besides constantly moving the mouse pointer around) was this workaround:

 Don't plug Polemaster camera to USB yet.
 Before launching Polemaster, launch SharpCap and connect to your laptops integrated camera until you see video from your camera.
 Minimize SharpCap.(Don't close it!)
 Connect Polemaster to USB and start as usual.

Maybe this will provide something useful to help figure out why Polemaster isn't working.

--Jon

11
QHYCCD Standard Software Q&A / Re: Polemaster Lag Time
« on: December 13, 2019, 11:32:33 AM »
Thanks for the installer. Unfortunately, there is no improvement.
 
One observation I made testing in SharpCap (3.2), if I start with the traffic set at 255, it doesn't work there either. However, if I slide the slider to zero in SharpCap and then back to 255, it works fine. This method does not help in the Polemaster QT app. In Polemaster the only response comes while moving the mouse. There is an occasional update around~ 20 seconds or so but otherwise, it doesn't work.
Also, the USB selective suspend option I mentioned above stopped working for me as well.
There are a number of other users of Polemaster I came across in Astrobin forums who are experiencing the same issue with their Polemasters on laptops.

--Jon

12
QHYCCD Standard Software Q&A / Re: Polemaster Lag Time
« on: December 05, 2019, 07:40:28 PM »
Thanks for the follow up...a user on AstroBin also discovered that the USB setting in the advanced power settings of Windows 10 being disabled also provided a workaround. (Settings>>Power & Sleep>>Additional Power Settings>>Change Plan Settings>>Change Advanced Power Settings>>USB Settings>>USB selective suspend setting>>On Battery & Plugged In both set to disabled)
Thanks again....

--Jon

13
QHYCCD Standard Software Q&A / Re: Polemaster Lag Time
« on: December 05, 2019, 02:09:46 PM »
Any updates on progress for this? Thank you...

--Jon

14
QHYCCD Standard Software Q&A / Re: Polemaster Lag Time
« on: November 28, 2019, 09:23:48 PM »
Playing with this a little more, it looks like sometimes it is 0 and others it is 255. If you add control of USB traffic, probably need to be able to vary it over the whole range. Maybe a slider?
Thanks again...

--Jon

15
QHYCCD Standard Software Q&A / Re: Polemaster Lag Time
« on: November 28, 2019, 09:02:25 PM »
Thank you! I look forward to the modified software.

--Jon

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