I've been trying to talk to a scrolling LED display via the serial port using WIN32::SerialPort with varying degrees of success. Problem is I can't quite tell why/when/what.
first I tried:
use Win32::SerialPort qw( :STAT 0.19 );
my $PortObj = new Win32::SerialPort ("COM1") || die "Can't open COM1:
$PortObj->write ("feed me");
$PortObj->close || die;
which worked once or twice.
then I omitted setting any params which worked fine for a whole evening, now nothing works.
SerialPort seems to pick up the settings on its own with little trouble, and a light comes on on the device whenever I try and talk to it, it's just failing to write.
Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
Want more info? How to link or
or How to display code and escape characters
are good places to start.