Messages

1

QHYCCD Standard Software Q&A / Re: QHY9 low level DLL for development

« on: September 06, 2013, 08:55:37 AM »

Thank you for the code example

I don't see here structure definition for "reg" variable.

also I don't see definitions of the dll functions -

what parameters do it require?
getCameraStatu();
sendRegisterQHYCCDNew();

usualy dll comes with .h file with all functions definitions

Am I understang right, that function
beginVideo(reg.devname);
actually starts exposure ? because QHY11 doesn't support video mode (unlike QHY52-L for example)

2

QHYCCD Standard Software Q&A / Re: QHY9 low level DLL for development

« on: September 04, 2013, 05:05:35 AM »

        Also ,Recent days we have made a higher level SDK. Please check  website-> SDK.

I've already checked. Hi level is definitely not enough for me. I can't find functions how to start or stop single exposure.

QHYUSB.DLL
QHYCAM.DLL

I see those 2 dll in SDK. That's just what I need.

Can you send me function definitions and some code example how to use it with QHY11 ?

3

QHYCCD Standard Software Q&A / Re: QHY9 low level DLL for development

« on: September 03, 2013, 05:16:50 AM »

QiuHY, please answer to my question.

4

New Camera Information / Re: Strange flat felds QHY11

« on: September 03, 2013, 05:15:16 AM »

I think L is simply overexposed. Try much lower light conditions.

In QHY11 ascom there's a bug with short exposures - every exposure is 1.3 sec longer than required. I've already wrote here several month ago about it, but it still not fixed. 

When you make 0.1sec exposure, camera takes 1.4 sec image, when you take 10sec exposure - it really makes 11.3sec exposure.

As a result, you can't use bright light for flats.

5

QHYCCD Standard Software Q&A / Re: QHY9 low level DLL for development

« on: August 22, 2013, 08:53:38 AM »

QiuHY

Can I use the same astroDLLGeneric.dll and QHY9DLL.dll  to work with QHY11 camera? I don't see QHY11 specific dll in EZCAP software.

If it's possible to use it, what's the difference between calls for QHY9 and QHY11 ?

As I understand, for QHY9. The devname should be "QHY11S-0" ?

Temperature control functions should work exactly the same?
signed short  getDC103FromInterrupt(PCHAR devname);
void  setDC103FromInterrupt(PCHAR devname,unsigned char PWM,unsigned char FAN);

6

New Camera Information / Re: DC201 circuit diagram

« on: August 20, 2013, 02:18:57 AM »

Fast switching means low power dissipation of MOSFET transistor. I've opened my CD201 and checked, R11 actually is 10om. If someone place there 10Kom - IRF7416 will surely burn up in 5minutes.

7

QHYCCD Standard Software Q&A / Re: Win7x64 + QHY11 ascom = crash!

« on: August 19, 2013, 05:50:51 AM »

         You can get the API from website->SDK.

I've looked at it.
Hi level API is not very useful for long exposure camera.

What I'm looking for is low level API, like the one you have published for QHY9.

8

QHYCCD Standard Software Q&A / Re: Win7x64 + QHY11 ascom = crash!

« on: August 19, 2013, 03:16:43 AM »

I spent one night working with new software.
Working with administrator appears very annoing under win7 x64-

First, I have to start MaximDL "as administrator", connect cameras, connect telescope (via eqmod).
Second, I need to start planetarium "as administrator", otherwise it can't connect to telescope.
Third, I have to start AutoFlats software "as administrator" as well, (it uses MaximDL to adjust exposure and make flats in all 4-6 filters on the morning sky)...

9

QHYCCD Standard Software Q&A / Re: Win7x64 + QHY11 ascom = crash!

« on: August 15, 2013, 02:23:54 AM »

Thank you.
I don't have QHY filter wheel.

Can you give me low level API for QHY11 ? It should be almost the same as one for QHY9.

I want to write my own ascom driver for this camera to change some issues.

1. fix short exposures (still impossible to make it shorter than 1.3sec)
2. Make temperature control loop a bit faster. I've compared QHY11 with FLI Proline 16803. FLI rises TEC PWM from 0% to 100% much faster, and achieves target temperature much sooner.

If I do this I can publish my ascom driver version here.

10

New Camera Information / Re: DC201 circuit diagram

« on: August 15, 2013, 02:00:45 AM »

Thanks!

Is R11 value correct? I think it should be 10om, not 10Kom to make MOSFET rise\fall times as short as possible.

11

QHYCCD Standard Software Q&A / Win7x64 + QHY11 ascom = crash!

« on: August 12, 2013, 05:03:20 PM »

Hi!

I'm trying to setup my new laptop (acer v3 571g with windows 7 prof x64 ) to work with cameras and telescope.

MaximDL 5.24 + QHY 5L-II seems to work fine, but when I connect MaximDL to QHY11 with the latest driver - maxim imediately and silently crashes.

I can avoid crash if I run maxim with right mouse click and choose 'run as administrator', but I'm sure this crash should be fixed.

12

QHYCCD Standard Software Q&A / Re: QHY5L-IIm slow frame rate in PHD

« on: June 07, 2013, 08:08:30 AM »

Hello,
          For faster guiding maybe consider the MegaGuide. Now it support the QHY5L-II 's guide port.

Best regards,

Can you give a link to that MegaGuide? I can't find it here and by google.

13

QHYCCD Standard Software Q&A / Re: QHY5L-IIm slow frame rate in PHD

« on: June 03, 2013, 03:09:49 AM »

Hi,

I asked similar question here
http://qhyccd.com/ccdbbs/index.php?topic=3791.0

14

New Camera Information / Re: QHY11 cooling problems.

« on: May 16, 2013, 02:12:09 AM »

Hello,
      When the camera boot on it will init the DC201's PWM. So maybe the default value is not 0% but 70% or 100%.

Hi QiuHY !
Thats, what I'm talking about. Why on camera boot it sets PWM to 70% or 100% ?

I've heard that fast temperature changes (due to fast switch from 0 to 100%, and back from 100% to 0%) can lead to CCD degradation. And I don't like it.

      For maximdl ASCOM controls, it always start at 0% then increase, so this is normal.

That's not always true. When I make a first connection in MaximDL and start cooling, it starts from 0%, but when I disconnect and connect again software, it remembers last PWM value and starts cooling from last remembered value. This is good.

The only issue I see here, that PWM is changing  toooo sloooow in ASCOM driver, I think it could react a bit faster.

15

New Camera Information / Re: QHY11 cooling problems.

« on: May 15, 2013, 12:09:29 AM »

Thanks,
you can send it to ionovy@gmail.com