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#1 Bill-in-BC

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Posted 24 August 2013 - 02:18 PM

I recently had to replace my RS-232 to parallel to USB computer cords - and I can't connect the LX200 GPS telescope mount to my Windows 7 computer. The cords are connected, the com port is set to 3 and I get a "timed out for receiving data" error. I'm unable to connect using both MaxIm DL and PemPRO. All the drivers seem to be installed correctly and I've also tried turning off the Windows Firewall. Any ideas out there? Thanks.

#2 Christopher Erickson

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Posted 25 August 2013 - 05:36 AM

What brand of USB to Serial adapter?

#3 Bill-in-BC

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Posted 25 August 2013 - 01:46 PM

The adapter is from Meade - #07507. Bill

#4 Lorence

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Posted 25 August 2013 - 02:48 PM

Have you checked the Com port number assignment of the USB to Com adapter in the device manager?

#5 Bill-in-BC

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Posted 25 August 2013 - 03:36 PM

Yes - its set to com3.

#6 Markigno

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Posted 26 August 2013 - 08:04 AM

Try to assign a COM port higher than 4 (from COM5 and up). Check the number assigned in the device manager and assign the same port number to the ASCOM driver. Ensure that the COM port is enabled for 9600 baud, flow control none, stop bit 1, data bits 8. Remember: the Com port accept only one program at time, so you can't use two programs together at the same time.
The only exception is to use ASCOM HUB, which allows the use of multiple programs simultaneously on the same COM port.
Marco

#7 Lorence

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Posted 26 August 2013 - 12:58 PM

Go to the Yahoo LX200 GPS Group

http://tech.groups.y...group/LX200GPS/

Find a thread called "Timed out waiting for received data".

It discusses an issue referred to as Garbage Collection. Meade's flash memory gets clogged up and slows the RS-232 Port down to a point that ASCOM thinks it's not there.

#8 Bill-in-BC

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Posted 26 August 2013 - 08:55 PM

Thanks for the help - I'll keep you posted. Bill

#9 Bill-in-BC

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Posted 06 September 2013 - 11:28 AM

Okay - a bit of progress - I reset the mount firmware and downloaded again the ASCOM platform - and now MaxIm DL amd Prempro will connect - but MaxIm won't perform telescope control. I tried to download the ASCOM Meade LX200-GPS driver (with windows firewall turned off) and the download hangs with the message:
"C:\Program Files (x86)\Common
An error occurred while trying to replace the existing file: DeleteFile failed; code 5
Access is denied
Click retry to try again, Ignore to skip this file (not recommended), or Abort to cancel installation"
Any thoughts? Thanks, Bill

#10 Bill-in-BC

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Posted 06 September 2013 - 12:03 PM

Addendum: I deleted the Meade LX200GPS driver file and then reinstalled the file from ASCOM - without the error message - but the telescope still refuses to follow the GOTO commands from MaxIm DL. ??? Bill

#11 Bill-in-BC

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Posted 09 September 2013 - 04:24 PM

Success! - All drivers deleted and reloaded/updated, a new connector cord, and proper alignment of the stars (in a figurative sense) - and MaxIm now controls the scope again. Thanks for the above suggestions. Bill






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