Com ports over COM9

John Whitney has asked for the wisdom of the Perl Monks concerning the following question:

I'm using Perl to write to a series of serial ports. I have 20 ports, numbered COM1 ... COM20. I can write to ports COM1 ... COM9 just fine, but ports COM10 to COM20 generate the following error...

The system can not find the file specified. Can't open device COM10

The line it dies on is...

my $ob = Win32::SerialPort->new ('COM10') || die;
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Any ideas?

Comment on Com ports over COM9 Download Code

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Re: Com ports over COM9
by PodMaster (Abbot) on Nov 16, 2004 at 08:01 UTC

HOWTO: Specify Serial Ports Larger than COM9

Yeah, I google

MJD says "you can't just make shit up and expect the computer to know what you mean, retardo!"
I run a Win32 PPM repository for perl 5.6.x and 5.8.x -- I take requests (README).
** The third rule of perl club is a statement of fact: pod is sexy.

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Re^2: Com ports over COM9

by John Whitney (Novice) on Nov 16, 2004 at 08:20 UTC

Thank you so much! You saved me a lot of time.

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Re^2: Com ports over COM9

by osunderdog (Deacon) on Nov 16, 2004 at 15:01 UTC

Ah, you gotta love good naming: "\\.\COM10"

Thanks for the reference. I'm sure I'll run into this at some point!

"Look, Shiny Things!" is not a better business strategy than compatibility and reuse.

OSUnderdog

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