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QHY QHY5L-II problem and solution

problem with USB dropped connection, Windows do not recognize

2015:

cloudynights1

cloudynights 2

astroforum nl 

2017

stargazerslounge

USB3 connectivity problem on SGL

hkastroforum

hkastroforum 2 

>> PHD2 嘅 2.6.3 直情辨認唔到 QHY5 嘅 guide camera,官方網頁已經講咗唔支援??? 找不到PHD2有此說法???

QHY5 guider hkastroforum

Tom Van den Eede 幫QHY(合作)寫過晒所有(QHY5, QHY5V, QHY5T...)driver及program,現在已經無chipset的問題。 Tom連capture program都寫過晒,唔用QHY的program(點解? 用過QHY的program你就知點解)。Tom的driver及program要另外download,qhyccd.com只係有條link指過TOM個website astrosoft be ( link now broken, since 2012)

abracad100

sina blog 

COMSDLL.DLL 版本問題

QHY5主要是以COMSDLL.DLL這個檔來作驅動,但是這個檔整整有六個版本!目前可以成功無誤的,是它的日期為2007.7.31日與2007.8.1這兩個版本可以跑得很正常。GUIDEMASTER網頁上的PLUG IN,它CMOSDLL.DLL是2007.8.6這個版本,我試了它的CALIBRATION中斷時,會亂跑,也不太穩定。

solution(2008):

統一的一個DRIVER都全部(軟件)可以用

 






 

2010 QHY ended cooperation with astrosoft, so Tom van den Eede stopped update ASCOM driver development for QHY5

the USB chip seems to be Cypress EZ-USB FX2 on QHY5 . seems to be how good the USB driver is written

shouldiremoveit

flightmouse

astrofree bbs changed use CCDLabs driver

suspected that this related to PID tuning(overshoot)

discussion in indi forum

how to solve:

highpointscientific : PHD2: use ASCOM drivers instead of native drivers

imufu faq 

conclusion:

1. stop buying a new 1st gen QHY5(driver no longer found in QHYCCD website),in case you have one, you pretty much rely on yourself ( for Windows users). But you may have some luck use with Linux, or INDI, or use it as Linguider, lin_guider (older), lin_guider by ploki ( newer) as pulse guider, or PHD

2. QHY5II check QHYCCD official website on driver status and support, it seems better support on Win 7 and Win 10 nowadays and better ASCOM drivers. choose those with QE > 70%

2. better choose 3rd gen QHY5III( higher QE, more pixels, good for planetary and guiding)




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