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<div id="projectbrief">Board 15 Famulus Edition</div>
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<li class="navelem"><a class="el" href="dir_587c94d866dbb2f408f78cf41f9b2f8d.html">drv</a></li> </ul>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>  </div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="keywordtype">void</span> USART::writeByte(uint8_t b)</div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> {</div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>  <span class="keywordtype">int</span> sent = write(file_desc, &b, 1);</div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>  <span class="keywordflow">if</span> (sent != 1)</div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>  {</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>  std::cout << <span class="stringliteral">"WARNUNG: Fehler beim Senden ("</span> << sent << <span class="stringliteral">"): writeByte(), wiederhole..."</span> << std::endl;</div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>  usleep(100000);</div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>  sent = write(file_desc, &b, 1);</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  <span class="keywordflow">if</span> (sent != 1)</div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  <span class="keywordflow">throw</span> <a class="code" href="classUSARTException.html">USARTException</a>(<span class="stringliteral">"Fehler beim Senden: writeByte()"</span>);</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>  }</div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> }</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keywordtype">void</span> USART::writeInt(uint16_t d)</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> {</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  <span class="keywordtype">int</span> sent = write(file_desc, reinterpret_cast<char *>(&d), 2);</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keywordflow">if</span> (sent != 2)</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keywordflow">throw</span> <a class="code" href="classUSARTException.html">USARTException</a>(<span class="stringliteral">"Fehler beim Senden: writeInt()"</span>);</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> }</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keywordtype">void</span> USART::writeU32(uint32_t w)</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordtype">int</span> sent = write(file_desc, reinterpret_cast<char *>(&w), 4);</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordflow">if</span> (sent != 4)</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">throw</span> <a class="code" href="classUSARTException.html">USARTException</a>(<span class="stringliteral">"Fehler beim Senden: writeU32()"</span>);</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> }</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> uint8_t USART::readByte(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordtype">char</span> b;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">auto</span> start = std::chrono::steady_clock::now();</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">auto</span> end = start;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  uint16_t elapsed = 0;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">while</span> (elapsed < timeout * 100)</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  {</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">int</span> code = read(file_desc, &b, 1);</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">if</span> (code > 0)</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">return</span> static_cast<uint8_t>(b);</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  end = std::chrono::steady_clock::now();</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  elapsed = std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count();</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  }</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">throw</span> <a class="code" href="classTimeoutException.html">TimeoutException</a>(<span class="stringliteral">"Verbindung unterbrochen."</span>, timeout);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> }</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> uint16_t USART::readInt(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> {</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">return</span> readByte() | readByte() << 8;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> }</div></div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclassUSARTException_html"><div class="ttname"><a href="classUSARTException.html">USARTException</a></div><div class="ttdef"><b>Definition:</b> <a href="usartexception_8h_source.html#l00009">usartexception.h:9</a></div></div>
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<div class="ttc" id="aclassTimeoutException_html"><div class="ttname"><a href="classTimeoutException.html">TimeoutException</a></div><div class="ttdef"><b>Definition:</b> <a href="timeoutexception_8h_source.html#l00009">timeoutexception.h:9</a></div></div>
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