php串口通信编程问题

php串口通信大多都是用的php dio模块,本文讲另外一种PHP串口通讯的方法。

废话少说先上代码

<?php
// HOW TO USE PHP TO WRITE TO YOUR SERIAL PORT: TWO METHODS
$serproxy = true;
if ($serproxy) {
     // Use this code in conjunction with SERPROXY.EXE
     // (http://www.lspace.nildram.co.uk/freeware.html)
     // which converts a Serial stream to a TCP/IP stream
     $fp = fsockopen ( "localhost", 5331, $errno, $errstr, 30 );
     if (! $fp) {
         echo "$errstr ($errno)";
     } else {
         $e = chr ( 27 );
         $string = $e . "A" . $e . "H300";
         $string .= $e . "V100" . $e . "XL1SATO";
         $string .= $e . "Q1" . $e . "Z";
         echo $string;
         fputs ( $fp, $string );
         fclose ( $fp );
    }
} elseif ($com1) {
     // Use this code to write directly to the COM1 serial port
     // First, you want to set the mode of the port. You need to set
     // it only once; it will remain the same until you reboot.
     // Note: the backticks on the following line will execute the
     // DOS 'mode' command from within PHP
    'mode com1: BAUD=9600 PARITY=N data=8 stop=1 xon=off';
     $fp = fopen ( "COM1:", "w+" );
     if (! $fp) {
         echo "Uh-oh. Port not opened.";
     } else {
         $e = chr ( 27 );
         $string = $e . "A" . $e . "H300";
         $string .= $e . "V100" . $e . "XL1SATO";
         $string .= $e . "Q1" . $e . "Z";
         echo $string;
         fputs ( $fp, $string );
         fclose ( $fp );
     }
}
?>

未经允许不得转载:SuperMan's blog » php串口通信编程问题

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