USB problem solved.
It appears to be a driver related issue.
I searched and searched using various search engines until I found another
company whose USB/Serial cables used a prolific chipset. I found one such
company - Bafo - http://www.bafo.com.tw/download.htm whose BF 810 is
functionally the same as the unit I purchased.
A quick download of those drivers and it worked pretty soon thereafter.
So if anyone ever has a similar problem... this may be helpful.
BTW I've tested the port with both TNC on RTTY and with rig control and it
works well, but only with the power cord connected to the notebook
computer... on battery power its not communicating with either device.
Does anybody know enough about USB to explain that... it's not much of an
issue... but always nice to know.
Finally, the current draw appeared to be surprisingly high - 500 mA, and the
max draw also appears to be 500mA on each of my two root hubs. I presume
that this means if I want to run 2 to 4 units I'd have to hook them up to
externally powered hubs??
So... now to fire up the search engines again to get some specs on
externally powered USB hubs...
73, and thanks to all those who responded.
Dean - 8P6SH
----- Original Message -----
From: "Dean M. St. Hill" <vision2000@sunbeach.net>
To: <WriteLog@contesting.com>
Sent: Tuesday, March 12, 2002 11:26 AM
Subject: [WriteLog] USB to Serial adaptors on WinXP Pro
Hi Writeloggers
I'm trying to get a USB to serial adaptor to play with my notebook which is
running Win XP.
1. The adaptor works - it works on my desktop running win 98 and on another
desktop system which also uses WinXP Pro.
2. It goes through the steps to be installed and when that process is
complete, WinXP then reports that the device cannot be found.
3. It uses the Prolific chipset and did not come with WinXP drivers...
Instead I'm using the Windows 2000 drivers which worked fine on that other
system.
4. I have approached the troubleshooting reasonably systematically and have
disabled infra-red and a few other things on the laptop to avoid any
potential irq issues. I eventually even edited the .inf file so it could
only use available irq's.
5. In another few hours, I'm going to install anothr HDD with win98se but
this even if it works is not a solution, since that would add overhead to my
contest preperation time.
Anybody had similar problems... anybody know where WinXP drivers can be
obtained for this prolific USB-Com cable?? Or any brand recommendations on
such a cable that works...
Thanks for your collective help.
73, Dean St. Hill - 8P6SH
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