I am using Eli Bendersky's serial port monitor. I have an embedded linux device attached to the COM port. First I use WIN32::TieRegistry to retrieve the open ports and then I send a ls to each open port and see who responds.

It seems to work the first time through and then it breaks the second time. In the broken state I can't open teraterm on the correct port and the only error that Eli's program gives is c **** Error opening port \\.\COM3: 5

If I hit CTRL-C while the program is running, then the program will work again 1 time. Is there a way to find out what is holding up the COM port and shut it down prior to running the code?

I already tried a shutdown 2 and close on the 2 ports Eli uses 14441 and 14442 with no luck.

Thanks


In reply to Serial Port Scan funk by elmachin

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.