This Miserable Mess with DB9 Serial and Computers?
Posted 22 February 2013 - 09:35 AM
When I first went to 64-bit win7pro, I had horrible blue screen crashes with my HP laptop using prolific usb2serial. I found pointers on the web that the issue involved particular motherboards combined with the drivers to cause the blue screen - so not all laptops had this problem. Keyspan were more expensive, but they solved it about 98%. I still get very rare blue screens associated with astronomy - but I now see a strong correlation with using SkyX. I don't know how there would be a connection - but I do have an impression there is one - so I avoid SkyX during imaging sessions.
Anyway - I also recommend keyspan. They come with good software for monitoring the ports - etc.
Posted 22 February 2013 - 09:42 AM
Posted 22 February 2013 - 09:57 AM
I'd be psyched if they'd use Ethernet instead of USB. Ethernet can go 100m in a single copper span and kilometers with fiber. Then it can be repeated with a switch, etc.
Therefore, having USB or Ethernet makes things easier for most users.
Posted 22 February 2013 - 10:11 AM
Posted 22 February 2013 - 10:19 AM
Posted 22 February 2013 - 11:43 AM
Posted 22 February 2013 - 01:26 PM
Posted 22 February 2013 - 11:18 PM
Serial will be around for a long time as long as there is high voltage machines requiring data communication.. Serial is much easier at controlling isolation between the devices.. Serial is also the preferred form of communications when motors are present.
Yeah...RS422 or RS485, not 232!
Posted 22 February 2013 - 11:25 PM
Meade DSI had difficulty because Meade decided not to be open about how the camera works. All drivers you find in other software such as MaximDL where written without support from Meade (At least that is how I remember it).
Posted 23 February 2013 - 12:04 PM
I saw the Keyspan recommended as a fix, and that proved to be true. It worked on the XP (now retired) and its replacement the Vista.
Posted 23 February 2013 - 12:25 PM
Posted 23 February 2013 - 01:53 PM
Posted 23 February 2013 - 03:40 PM
Another one for keyspan....have worked perfectly for me.
OK, since we're piling on, I'll add another +1 to the heap. I've been using mine for five years on multiple boxes running multiple OSs talking to multiple devices without one singe glitch. It just works time and time again.
Posted 24 February 2013 - 12:20 AM
Posted 24 February 2013 - 02:29 AM
Oh Yea, W_XP_+SP2. No need for anything else.
W7 and or W8 too probelm-atic, stick with XP in admin mode.
Dual core, 2 gb ram, enough for all applications, simple and refined/proven reliability.
Posted 27 February 2013 - 01:53 PM
as dslr for ex. the 6D begin to be wireless shuttering and upload, very good to faststar and avoid wire problem
personal: rs232 is really painfull to me (china adapters mess with updates and things) real intel on laptop rs232 work properly in my case, I keep this old laptop to do updates.
I bought 2X 25 meters +-20$ active usb cable that work very good and never had problem with...
I can't use an slow laptop as, I use it to stack and check my work in live... so I7, fast ssd, big 7200rpm drive...
an asus g75vw
I think that the usb and rs232 have their quality and problem...
Posted 27 February 2013 - 02:16 PM
Plus it's half duplex..
Posted 27 February 2013 - 02:49 PM
Either bluetooth or WiFi have legs for the future. If they want to use serial cables internally, OK. Otherwise, this is seriously a trip into the land of the arcane as modern computing hardware is going to be far more likely to be a tablet than any form of PC. So, a bluetooth architecture would really be nice- especially since the dreaded cord wrap exits at that point.
Posted 27 February 2013 - 08:02 PM
Posted 27 February 2013 - 08:04 PM
RS-232 serial is half duplex?
The issue with wireless is the possible loss of dropped packets.. serial does not do a good job of error control..
Plus it's half duplex..
Posted 27 February 2013 - 08:38 PM
To top it off the cheap serial adapter is connected to a cheap 7 port USB hub mounted on my mount, and connected to my laptop in the garage with a PTC 65ft USB cable. When plugged in my comm port is always the same, so I'm not sure why others are having to switch ports everytime they plug in. As long as you plug into the same USB port as you did before, your comm port should end up being the same.
Posted 27 February 2013 - 09:28 PM
You only run over 1 wireless channel..
unless your device and wap are multi radio.. which is not a normal config.