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109 lines
3.4 KiB
109 lines
3.4 KiB
18 years ago
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<title>The tr Command</title>
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<h1>tr</h1>
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<!--INDEX "tr command" "transparent mode" -->
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The tr command selects transparent mode.<p>
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<h2>Format</h2>
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<p> The format for this command is:</p>
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<blockquote>
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<p> <font size="+1">tr [-2] [port] </font></p>
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</blockquote>
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<p>where:</p>
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<table width="95%" border="0" cellspacing="1" cellpadding="1" height="41">
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<tr bgcolor="#CCCCCC">
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<td width="14%" align="right" valign="top">-2 </td>
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<td width="86%" align="left" valign="top">Selects 2-port mode.</td>
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</tr>
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<tr>
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<td width="14%" align="right" valign="top">port </td>
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<td width="86%" align="left" valign="top">Selects a specific port </td>
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</tr>
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</table>
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<p> </p>
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<h2>Functional Description</h2>
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<dl>
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<dd> The tr command selects transparent mode.
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<dd> </dd>
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<dt>In transparent mode, the <a href="mondef.htm">Monitor</a> copies any characters
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typed on the keyboard to the selected port and then copies characters arriving
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at the selected port to the screen. This command can be used for two different
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functions.</dt>
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<dd> </dd>
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<dd>
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<p>
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<ul>
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<li> To allow the user run the <a href="mondef.htm">Monitor</a> on the same
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serial port that is used as a login line to your host. Do this by connnecting
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tty1 to your host system, and tty0 to your terminal. Typing 'tr' on your
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terminal will connect you with your host.
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<p>
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<li> To allow the user to 'rlogin' to another board via a serial port or
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pseudo tty port. This mode is used on the ATMizer platform in order to
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'talk' to the SAR board. For example,
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<p>
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</ul>
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</dl>
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<blockquote>
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<pre>
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PMON> tr tty2 connect to port tty2
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SAR> r display registers on SAR board
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^K return to main board
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PMON> r display registers on main board
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</pre>
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</blockquote>
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<p>tty2 is the name of the pseudo tty port (located in shared memory) that is
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used to communicate with the SAR board. </p>
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<p> Note that if you are using 2-port download mode. You will need to add the
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option '-2' to indicate that you need 2-port transparent mode. For example,</p>
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<blockquote>
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<blockquote>
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<pre> PMON> tr -2 tty2</pre>
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</blockquote>
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</blockquote>
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<p>In this case the <a href="mondef.htm">Monitor</a> not only copies characters
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typed on the keyboard to tty2 and characters arriving on tty2 to the screen.
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It also copies characters arriving on tty1 to tty3, and characters arriving
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on tty3 to tty1. </p>
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<p>The <b>trabort</b> Variable</p>
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<blockquote>
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<p> The environment variable trabort selects the character that terminates the
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transparent mode and returns the <a href="mondef.htm">Monitor</a> to the default
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command mode.</p>
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</blockquote>
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<p> The <b>hostport</b> Variable</p>
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<blockquote>
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<p> The environment variable hostport determines the default port for the tr
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command.</p>
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</blockquote>
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<blockquote>
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<p> </p>
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</blockquote>
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<h2>See Also</h2><dl><dd>
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<a href="c_set.htm">set</a>
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command for the setup of the environment variables.<p>
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</dl><p><hr>
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<p><b>Navigation:</b> <a href="pmon.htm">Document Home</a> | <a href="doctoc.htm">Document
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Contents</a> | <a href="docindex.htm">Document Index</a></p>
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<p><!--$Id: c_tr.htm,v 1.1.1.1 2006/09/14 01:59:06 root Exp $ --></p>
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