Brent Brown wrote:
> To cut a long story short I got hold of the latest Windows driver from
> http://tech.prolific.com.tw (NOT from Bafo!). Driver is v2.0.2.1 and the
file is
> named wd_pl2303h-hx-x_v20019v2021.zip. It seems to have successfully
> fixed all my problems! It's an InstallShield .exe file too which seems to
> remove previous drivers first and is easier to use than trying to tell
Windows
> where to get a driver file from.

That worked for me on the Windows 2000 system.  The USB adapter now works
with a EasyProg without any adapter in between and without modification to
the EasyProg.  The speed is the same as before.  64.5 seconds with the USB
adapter, 55.5 seconds for direct connection to a real COM port.

Wouter van Ooijen wrote:
> The hardware isn't very interesting: Three wires from the converter to
> the MAX232 (GND, RxD, TxD).
>
> I use XP, no SP's. The device manager says:
>
>    ATEN USB to serial bridge (COM7)
>       driver: ATEN 6-7-2003 2.0.0.18
>
>    Prolific USB-to-serial comm port (COM9)
>       driver: prolific 9-4-2002 1.5.0.0

I had a driver with version 2.0.0.18 installed which I got off the disk that
came with the adapter you sent me.  That's the one that didn't work without
RTS/CTS loopback.  I now have version 2.0.2.1 which is two years newer and
seems to work correctly.  The time stamp of the driver installer after
unpacking the ZIP file is 3 August 2005.


*****************************************************************
Embed Inc, embedded system specialists in Littleton Massachusetts
(978) 742-9014, http://www.embedinc.com
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist