Dear support,
I have a ASI120MM and I am not able to guide using its ST4 port. I also have the GPUSB and I can successfully guide with this device. Same cable. ASCOM version 6.1 SP1.
I have installed all drivers all drivers:
ASCOM Diagnostics:
21.140 Registered Devices ASCOM.ASICamera.Camera - ASI Cameras ASCOM driver
21.156 DriverCompatibility ProgID: ASCOM.ASICamera.Camera, Bitness: Bits32
21.156 DriverCompatibility Found 32bit ProgID registration
21.156 DriverCompatibility Running on a 32bit OS, 32Bit Registered: True
21.156 DriverCompatibility Found CLSID entry
21.156 DriverCompatibility Returning: ""
21.156 Registered Devices OK for 32bit applications
21.359 Registered Device Type Telescope
21.359 Registered Devices ASCOM.ASIST4.Telescope - ASI ST4 Telescope Driver
21.375 DriverCompatibility ProgID: ASCOM.ASIST4.Telescope, Bitness: Bits32
21.375 DriverCompatibility Found 32bit ProgID registration
21.375 DriverCompatibility Running on a 32bit OS, 32Bit Registered: True
21.375 DriverCompatibility Found CLSID entry
21.375 DriverCompatibility Returning: ""
21.375 Registered Devices OK for 32bit applications
The camera is working fine.
I also did the following test:
I have a G11 mount and set the guiding speed to maximum. With a telescope control software I can manually control the RA/DEC axis successfully with GPUSB (ASCOM driver) and I can hearing the mount noise when pressing the control buttons. Selecting the ASI ST4 ASCOM driver I cannot hear no noise at all when pressing the buttons. In other words, the telescope control software does not control the scope using the ASI ST4 port.
Driver vesion 3.4.8.0 checked on Windows Device Manager. Running on a Windows XP computer.
What is going on with the ST4 port?
Best
Andre Moutinho
http://www.meteorito.com.br