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8 | <h1>xmodem.h</h1><a href="xmodem_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*! \file xmodem.h \brief XModem Transmit/Receive Implementation with CRC and 1K support. */</span> |
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9 | 00002 <span class="comment">//*****************************************************************************</span> |
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10 | 00003 <span class="comment">//</span> |
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11 | 00004 <span class="comment">// File Name : 'xmodem.h'</span> |
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12 | 00005 <span class="comment">// Title : XModem Transmit/Receive Implementation with CRC and 1K support</span> |
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13 | 00006 <span class="comment">// Author : Pascal Stang - Copyright (C) 2006</span> |
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14 | 00007 <span class="comment">// Created : 4/22/2006</span> |
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15 | 00008 <span class="comment">// Revised : 7/22/2006</span> |
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16 | 00009 <span class="comment">// Version : 0.1</span> |
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17 | 00010 <span class="comment">// Target MCU : AVR processors</span> |
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18 | 00011 <span class="comment">// Editor Tabs : 4</span> |
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19 | 00012 <span class="comment">//</span><span class="comment"></span> |
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20 | 00013 <span class="comment">/// \ingroup general</span> |
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21 | 00014 <span class="comment">/// \defgroup xmodem XModem Transmit/Receive Implementation with CRC and 1K support (xmodem.c)</span> |
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22 | 00015 <span class="comment">/// \code #include "xmodem.h" \endcode</span> |
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23 | 00016 <span class="comment">/// \par Overview</span> |
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24 | 00017 <span class="comment">/// This XModem implementation supports both 128b and 1K packets with or</span> |
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25 | 00018 <span class="comment">/// without CRC checking. The xmodem library must be initialized to use</span> |
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26 | 00019 <span class="comment">/// a particular I/O stream by passing appropriate getbyte() and sendbyte()</span> |
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27 | 00020 <span class="comment">/// functions to xmodemInit(). The xmodem transfer routines also expect</span> |
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28 | 00021 <span class="comment">/// function pointers to read and write data blocks on the local system.</span> |
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29 | 00022 <span class="comment">/// While this use of function pointers increases code size, it has great</span> |
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30 | 00023 <span class="comment">/// adaptability. The generalized read/write data functions mean that it</span> |
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31 | 00024 <span class="comment">/// is easy to pipe data to/from any storage device like EEPROMs or flash</span> |
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32 | 00025 <span class="comment">/// cards, rather than being limited to just processor RAM.</span> |
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33 | 00026 <span class="comment"></span><span class="comment">//</span> |
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34 | 00027 <span class="comment">// This code is distributed under the GNU Public License</span> |
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35 | 00028 <span class="comment">// which can be found at http://www.gnu.org/licenses/gpl.txt</span> |
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36 | 00029 <span class="comment">//</span> |
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37 | 00030 <span class="comment">//*****************************************************************************</span><span class="comment"></span> |
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38 | 00031 <span class="comment">//@{</span> |
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39 | 00032 <span class="comment"></span> |
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40 | 00033 <span class="preprocessor">#ifndef XMODEM_H</span> |
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41 | 00034 <span class="preprocessor"></span><span class="preprocessor">#define XMODEM_H</span> |
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42 | 00035 <span class="preprocessor"></span> |
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43 | 00036 <span class="comment">// xmodem control characters</span> |
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44 | 00037 <span class="preprocessor">#define SOH 0x01</span> |
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45 | 00038 <span class="preprocessor"></span><span class="preprocessor">#define STX 0x02</span> |
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46 | 00039 <span class="preprocessor"></span><span class="preprocessor">#define EOT 0x04</span> |
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47 | 00040 <span class="preprocessor"></span><span class="preprocessor">#define ACK 0x06</span> |
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48 | 00041 <span class="preprocessor"></span><span class="preprocessor">#define NAK 0x15</span> |
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49 | 00042 <span class="preprocessor"></span><span class="preprocessor">#define CAN 0x18</span> |
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50 | 00043 <span class="preprocessor"></span><span class="preprocessor">#define CTRLZ 0x1A</span> |
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51 | 00044 <span class="preprocessor"></span> |
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52 | 00045 <span class="comment">// xmodem timeout/retry parameters</span> |
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53 | 00046 <span class="preprocessor">#define XMODEM_TIMEOUT_DELAY 1000</span> |
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54 | 00047 <span class="preprocessor"></span><span class="preprocessor">#define XMODEM_RETRY_LIMIT 16</span> |
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55 | 00048 <span class="preprocessor"></span> |
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56 | 00049 <span class="comment">// error return codes</span> |
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57 | 00050 <span class="preprocessor">#define XMODEM_ERROR_REMOTECANCEL -1</span> |
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58 | 00051 <span class="preprocessor"></span><span class="preprocessor">#define XMODEM_ERROR_OUTOFSYNC -2</span> |
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59 | 00052 <span class="preprocessor"></span><span class="preprocessor">#define XMODEM_ERROR_RETRYEXCEED -3</span> |
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60 | 00053 <span class="preprocessor"></span> |
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61 | 00054 <span class="comment"></span> |
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62 | 00055 <span class="comment">//! initialize xmodem stream I/O routines</span> |
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63 | 00056 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__xmodem.html#ga0">xmodemInit</a>(<span class="keywordtype">void</span> (*sendbyte_func)(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> c), <span class="keywordtype">int</span> (*getbyte_func)(<span class="keywordtype">void</span>)); |
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64 | 00057 <span class="comment"></span> |
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65 | 00058 <span class="comment">//! xmodem receive</span> |
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66 | 00059 <span class="comment"></span><span class="keywordtype">long</span> <a class="code" href="group__xmodem.html#ga1">xmodemReceive</a>( <span class="keywordtype">int</span> (*write)(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* buffer, <span class="keywordtype">int</span> size) ); |
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67 | 00060 <span class="comment"></span> |
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68 | 00061 <span class="comment">//! xmodem transmit</span> |
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69 | 00062 <span class="comment"></span><span class="keywordtype">long</span> <a class="code" href="group__xmodem.html#ga2">xmodemTransmit</a>( <span class="keywordtype">int</span> (*read)(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* buffer, <span class="keywordtype">int</span> size) ); |
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70 | 00063 <span class="comment"></span> |
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71 | 00064 <span class="comment">//! xmodem CRC/checksum error checking</span> |
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72 | 00065 <span class="comment"></span><span class="keywordtype">int</span> <a class="code" href="group__xmodem.html#ga3">xmodemCrcCheck</a>(<span class="keywordtype">int</span> crcflag, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> size); |
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73 | 00066 |
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74 | 00067 <span class="comment">// extra stream I/O functions</span><span class="comment"></span> |
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75 | 00068 <span class="comment">//! get incoming character (wait for timeout)</span> |
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76 | 00069 <span class="comment"></span><span class="keywordtype">int</span> <a class="code" href="group__xmodem.html#ga4">xmodemInTime</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> timeout); |
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77 | 00070 <span class="comment"></span> |
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78 | 00071 <span class="comment">//! flush incoming character stream</span> |
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79 | 00072 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__xmodem.html#ga5">xmodemInFlush</a>(<span class="keywordtype">void</span>); |
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80 | 00073 |
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81 | 00074 <span class="preprocessor">#endif</span> |
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82 | 00075 <span class="preprocessor"></span><span class="comment"></span> |
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83 | 00076 <span class="comment">//@}</span> |
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84 | </span></pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Oct 29 03:41:08 2006 for Procyon AVRlib by |
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