At 02:37 PM 5/30/2006, Eric Wachsmann - FlexRadio wrote:
>Dave,
>
>Upon initialization, the PowerSDR software polls up to COM20 to find out
>what COM ports are available.  It simply opens the port and makes sure
>it gets a response before closing it.  This should not affect any other
>applications since if they were using one of the ports, PowerSDR would
>just get an error and would not include that port.  This is completely
>independent of our USB to Parallel Adapter.


there is also a Windows API call (exposed as a VB method) that returns 
available ports. There's an example in one of the serial port example 
programs on MSDN.

>
>
>Eric Wachsmann
>FlexRadio Systems
>
>-----Original Message-----
>From: Dave Kiefer [mailto:[EMAIL PROTECTED]
>Sent: Monday, May 29, 2006 6:09 PM
>To: FlexRadio@flex-radio.biz; [EMAIL PROTECTED]
>Subject: Serial ports
>
>I have the SDR1K running on the parallel port of a WinXP box and all
>works fine,
>however when I start PowerSDR it seems to poll my serial ports which
>are usb to serial converters, I have 3 of them the  brand is Keyspan,
>unless that port is already in use it then becomes locked out,
>unusable to any of my programs, ie: other radio controls.
>Is there any way around this? I had the Flex on the usb to parallel
>converter, but it didn't like 40m at 500w, would drop out immediately.
>So I went back to just the LPT1 and it works fine.
>I took the Flex usb driver out of the windows driver directory and
>thought
>this would take care of the serial port lock out problem, but no luck.
>The vcom serial driver works fine.
>
>I would also like to add to the list of wants for an upgrade is anti vox
>and
>a separate receive antenna port.
>
>Otherwise it's been fun so far.
>
>
>73,
>Dave
>N4DWK
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James Lux, P.E.
Spacecraft Radio Frequency Subsystems Group
Flight Communications Systems Section
Jet Propulsion Laboratory, Mail Stop 161-213
4800 Oak Grove Drive
Pasadena CA 91109
tel: (818)354-2075
fax: (818)393-6875



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