Open Compact Flash Com port

dotnet framework


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Open Compact Flash Com port

Postby Romain TAILLANDIER » Wed, 14 Dec 2005 00:13:44 GMT

Hi group

I make a RFID program, which whork on any pocket PC with a compactFlash.
I just have to know what is the number of the com port where the 
CompactFlash Slot is ?
on mine is 8. for the moment i try to open all the com port until i get the 
one with the RFID reader. But sometimes another Com port (bluetooth in my 
case) reply.
Co how can i know on which com port i have to work ?
I am sure there is some registry key or something.

thank you ! 

Re: Open Compact Flash Com port

Postby Joseph Byrns » Wed, 14 Dec 2005 00:54:56 GMT

If you go through HKEY_LOCAL_MACHINE\Drivers\Active and look through all the 
keys in there (1 to xx) the values in there should tell what is assigned to 
which comm port.

Re: Open Compact Flash Com port

Postby Paul G. Tobey [eMVP] » Wed, 14 Dec 2005 01:20:36 GMT

Exactly, there's no right answer to the original question.  It might be 
*any* COM port (or it might not even be assigned a COM<x> name at all). 
Check with the CF card manufacturer...

Paul T.

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