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<a class="el" href="dir_2209bfb26110ae52d50da4cefad5e72f.html">include</a> » <a class="el" href="dir_9b4fbd1818b4be2ef59811982235911e.html">hcs12</a> » <a class="el" href="dir_0bb6a295f3bedefe1e3a430a1a424e0b.html">asm-m68hc12</a></div>
<h1>portsaccess.h</h1><a href="portsaccess_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment">This file is part of CanFestival, a library implementing CanOpen Stack. </span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment">Copyright (C): Edouard TISSERANT and Francis DUPIN</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment">See COPYING file for copyrights details.</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment">This library is free software; you can redistribute it and/or</span>
<a name="l00009"></a>00009 <span class="comment">modify it under the terms of the GNU Lesser General Public</span>
<a name="l00010"></a>00010 <span class="comment">License as published by the Free Software Foundation; either</span>
<a name="l00011"></a>00011 <span class="comment">version 2.1 of the License, or (at your option) any later version.</span>
<a name="l00012"></a>00012 <span class="comment"></span>
<a name="l00013"></a>00013 <span class="comment">This library is distributed in the hope that it will be useful,</span>
<a name="l00014"></a>00014 <span class="comment">but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00015"></a>00015 <span class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00016"></a>00016 <span class="comment">Lesser General Public License for more details.</span>
<a name="l00017"></a>00017 <span class="comment"></span>
<a name="l00018"></a>00018 <span class="comment">You should have received a copy of the GNU Lesser General Public</span>
<a name="l00019"></a>00019 <span class="comment">License along with this library; if not, write to the Free Software</span>
<a name="l00020"></a>00020 <span class="comment">Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00021"></a>00021 <span class="comment">*/</span>
<a name="l00022"></a>00022 <span class="comment">/*</span>
<a name="l00023"></a>00023 <span class="comment">Variables to access to the io_ports</span>
<a name="l00024"></a>00024 <span class="comment">*/</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="preprocessor">#ifndef __PORTS_ACCESS__</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#define __PORTS_ACCESS__</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span>
<a name="l00030"></a>00030 <span class="comment">/*</span>
<a name="l00031"></a>00031 <span class="comment">By default the address is 0X0000 on HCS12.</span>
<a name="l00032"></a>00032 <span class="comment">But the ports can be remaped. See the file ports.h</span>
<a name="l00033"></a>00033 <span class="comment">*/</span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keyword">extern</span> <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="portsaccess_8h.html#cb39c27c5b828bb40948690ed0fc9462">_io_ports</a>[];
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="comment">/* To use for a 8 bits access */</span>
<a name="l00039"></a><a class="code" href="portsaccess_8h.html#cdf97ea78c88c125dbbe6f2409de6ec1">00039</a> <span class="preprocessor">#define IO_PORTS_8(adr) \</span>
<a name="l00040"></a>00040 <span class="preprocessor">_io_ports[adr]</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span>
<a name="l00042"></a>00042 <span class="comment">/* To use for a 16 bits access */</span>
<a name="l00043"></a>00043 <span class="comment">/* Example : IO_PORTS_16(CAN0IDAR1)= 0xABCD;</span>
<a name="l00044"></a>00044 <span class="comment">will put AB at @CAN0IDAR1 and CD at @CAN0IDAR1 + 1</span>
<a name="l00045"></a>00045 <span class="comment">*/</span>
<a name="l00046"></a><a class="code" href="portsaccess_8h.html#05c3e46f52e97cb343d4a18d3dbe2eba">00046</a> <span class="preprocessor">#define IO_PORTS_16(adr) \</span>
<a name="l00047"></a>00047 <span class="preprocessor">*((unsigned volatile short*) (_io_ports + (adr)))</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span>
<a name="l00049"></a>00049 <span class="preprocessor">#endif</span>
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