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<h2>
<a href="index.html">
<font color="#0000ff"><i>Open</i></font><font color="#000084">BSD</font></a>
<font color="#e00000">landisk</font>
</h2>
<hr>
<p>

<a href="images/usl5p.jpg">
<img src="images/usl5p.jpg" width="306" height="422" align="right" alt="usl5p"></a>

OpenBSD/landisk runs on machines related to the
<a href="http://www.iodata.jp/prod/storage/hdd/2004/usl-5p/index.htm">
IO-DATA USL-5P</a>, using a
<a href="http://www.renesas.com">Hitachi/Renesas</a>
SH-4 CPU.<br>
This platform comes in a variety of models:

<ul>
<li>IO-DATA USL-5P, using CF storage (Japan; as shown)
<li>IO-DATA HDL-U, HDL-AV, HDL-W and HDLM-U series (Japan)
<li>SuperTank LAN Tank (SOTO-HDLWU) (Japan)
<li>IO-DATA UHDL-160U and UHDL-300U (May be found in USA)
<li>Plextor PX-EH16L, PX-EH25L and PX-EH40L
</ul>

Note: The "Giga-landisk" and HDL-F machines are ARM-based
(both Intel XScale &amp; Marvell), some of which are supported by the
<a href="armish.html">armish</a> architecture.

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<hr>

<h3 id="history"><font color="#0000e0"><strong>History</strong></font></h3>
<p>
OpenBSD/landisk is the 1st OpenBSD port to a
<a href="http://www.renesas.com">Hitachi/Renesas</a> SH-4 based machine.
It is hoped that other SH-4 based machines will show up which are
interesting enough for our user and development community, but the SH-4
processor is normally used only in true embedded products.

This processor architecture is the first 32-bit sucessor of a series
of extremely bizarre 8 and 16 bit processors by Hitachi.  It has a
very strange instruction set and MMU, and developers find it quite a
challenge to map their knowledge of Unix low-level ideas to the
processor architecture.

<h3 id="status"><font color="#0000e0"><strong>Current status</strong></font></h3>

<p>
Hardware support is mostly complete and quite stable.

<h3 id="hardware"><font color="#0000e0"><strong>Supported hardware</strong></font></h3>

For a complete system component and device driver listing for this architecture, see <a href="http://man.openbsd.org/?query=intro&amp;arch=landisk&amp;sektion=4">intro(4/landisk)</a>.
<p>
<ul>
<li>HITACHI SH4 SH7751R processor at 266MHz.
<li>64MB of ram.
<li><a href="http://man.openbsd.org/?query=re&amp;sektion=4">re(4)</a> 100Mbit ethernet.
<li><a href="http://man.openbsd.org/?query=wdc&amp;sektion=4">wdc(4)</a> drive controller connected to either flash or microdrive in a CF socket, on some models.
<li><a href="http://man.openbsd.org/?query=pciide&amp;sektion=4">pciide(4)</a> IDE drive controller supporting <a href="http://man.openbsd.org/?query=wd&amp;sektion=4">wd(4)</a>, on some models.
<li><a href="http://man.openbsd.org/?query=com&amp;sektion=4">com(4)</a> serial port console at 9600 baud (lacking hardware flow control).
<li><a href="http://man.openbsd.org/?query=ehci&amp;sektion=4">ehci(4)</a> and <a href="http://man.openbsd.org/?query=ohci&amp;sektion=4">ohci(4)</a> USB controllers supporting most <a href="http://man.openbsd.org/?query=usb&amp;sektion=4">usb(4)</a> devices.
<li><a href="http://man.openbsd.org/?query=power&amp;arch=landisk&amp;sektion=4">power(4)</a> button and some LEDs.
</ul>

<h3 id="install"><font color="#0000e0">
<strong>Getting and installing</strong>
</font></h3>

<p>
The latest supported OpenBSD/landisk release is
<a href="59.html">OpenBSD 5.9</a>.
Here are the
<a href="http://ftp.OpenBSD.org/pub/OpenBSD/5.9/landisk/INSTALL.landisk">
OpenBSD/landisk 5.9 installation instructions
</a>.

<p>
Snapshots are made available from time to time, in
<a href="http://ftp.OpenBSD.org/pub/OpenBSD/snapshots/landisk">this location</a>
as well as in a few
<a href="ftp.html">mirrors</a>.
Here are the
<a href="http://ftp.OpenBSD.org/pub/OpenBSD/snapshots/landisk/INSTALL.landisk">
OpenBSD/landisk snapshot installation instructions
</a> as well.

<img align="right" height=274 width=410 src="images/usl5p-serial.gif" alt="usl5p serial">
<h3 id="serial"><font color="#0000e0">
<strong>Serial cable connection</strong>
</font></h3>
All of these machines require a special serial cable which does
voltage conversion, and can hopefully be purchased along with the
card.  This cable normally contains a little max232 or similar chip
which converts from the 3.3V signals to +/-12V.  The IO-DATA cable
has pins which can grip the inside of the holes.  Or you can attempt
to build your own using
<a href="http://www.mizore.jp/wiki/index.php?LANDISK%2Fserial-console">
some Japanese instructions</a>.
<p>
The IO-DATA cable converts from a DB9 connector to a 5-pin header
(3.3V Tx Rx GND NC).  Note that the Rx and Tx pins on the board are
<b>swapped</b> compared to the ARM-based machines made by IO-DATA.
All the board models have a 5-pin connector (called CN7) which the cable
can plug into -- except for the USL-5P which has a 4-pin header (thus
requiring removal of the spare pin).
<p>
A USL-5P is shown with a modified IO-DATA cable.  In this case the cable
has been shortened significantly and the DB9 connector is glued into a slot
carefully cut into the plastic between the ethernet and a USB port.
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