150 lines
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150 lines
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<title>Sensor Watch: watch-library/shared/watch/watch_spi.h Source File</title>
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<div id="projectname">Sensor Watch<span id="projectnumber"> 0.0.2</span>
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<div id="projectbrief">A board replacement for the classic Casio F-91W wristwatch, powered by a Microchip SAM L22 microcontroller.</div>
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<li class="navelem"><a class="el" href="dir_f1a087a6659d970f5756e21fc1ac4961.html">watch-library</a></li><li class="navelem"><a class="el" href="dir_3351a3556ab4b770be21f3a77a6d7b80.html">shared</a></li><li class="navelem"><a class="el" href="dir_280ec1f3fe74f12cdd5c78898ed1ca3c.html">watch</a></li> </ul>
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<div class="headertitle"><div class="title">watch_spi.h</div></div>
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<div class="contents">
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * MIT License</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * Copyright (c) 2022 Joey Castillo</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * of this software and associated documentation files (the "Software"), to deal</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * in the Software without restriction, including without limitation the rights</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * copies of the Software, and to permit persons to whom the Software is</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * copies or substantial portions of the Software.</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="comment"> * SOFTWARE.</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#ifndef _WATCH_SPI_H_INCLUDED</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#define _WATCH_SPI_H_INCLUDED</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include "<a class="code" href="watch_8h.html">watch.h</a>"</span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"><a class="line" href="group__spi.html#ga77252649d1551483308f312131e80dec"> 38</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__spi.html#ga77252649d1551483308f312131e80dec">watch_enable_spi</a>(<span class="keywordtype">void</span>);</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"><a class="line" href="group__spi.html#ga8ff6df67e49f90daec4c6456d8c07f22"> 42</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__spi.html#ga8ff6df67e49f90daec4c6456d8c07f22">watch_disable_spi</a>(<span class="keywordtype">void</span>);</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="group__spi.html#ga9e1b869726dc01834ac9a365b32ec492"> 49</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="group__spi.html#ga9e1b869726dc01834ac9a365b32ec492">watch_spi_write</a>(<span class="keyword">const</span> uint8_t *buf, uint16_t length);</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="group__spi.html#ga20b320293d43a867233b5bedeeab07b3"> 56</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="group__spi.html#ga20b320293d43a867233b5bedeeab07b3">watch_spi_read</a>(uint8_t *buf, uint16_t length);</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"><a class="line" href="group__spi.html#ga350791f4a5eb66d0725cd418d1cd1087"> 64</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="group__spi.html#ga350791f4a5eb66d0725cd418d1cd1087">watch_spi_transfer</a>(<span class="keyword">const</span> uint8_t *data_out, uint8_t *data_in, uint16_t length);</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="preprocessor">#endif</span></div>
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<div class="ttc" id="agroup__spi_html_ga20b320293d43a867233b5bedeeab07b3"><div class="ttname"><a href="group__spi.html#ga20b320293d43a867233b5bedeeab07b3">watch_spi_read</a></div><div class="ttdeci">bool watch_spi_read(uint8_t *buf, uint16_t length)</div><div class="ttdoc">Reads a series of values from a device on the SPI bus.</div></div>
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<div class="ttc" id="agroup__spi_html_ga350791f4a5eb66d0725cd418d1cd1087"><div class="ttname"><a href="group__spi.html#ga350791f4a5eb66d0725cd418d1cd1087">watch_spi_transfer</a></div><div class="ttdeci">bool watch_spi_transfer(const uint8_t *data_out, uint8_t *data_in, uint16_t length)</div><div class="ttdoc">Reads a series of values from a device on the SPI bus.</div></div>
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<div class="ttc" id="agroup__spi_html_ga77252649d1551483308f312131e80dec"><div class="ttname"><a href="group__spi.html#ga77252649d1551483308f312131e80dec">watch_enable_spi</a></div><div class="ttdeci">void watch_enable_spi(void)</div><div class="ttdoc">Enables the SPI peripheral. Call this before attempting to interface with SPI devices.</div></div>
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<div class="ttc" id="agroup__spi_html_ga8ff6df67e49f90daec4c6456d8c07f22"><div class="ttname"><a href="group__spi.html#ga8ff6df67e49f90daec4c6456d8c07f22">watch_disable_spi</a></div><div class="ttdeci">void watch_disable_spi(void)</div><div class="ttdoc">Disables the SPI peripheral.</div></div>
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<div class="ttc" id="agroup__spi_html_ga9e1b869726dc01834ac9a365b32ec492"><div class="ttname"><a href="group__spi.html#ga9e1b869726dc01834ac9a365b32ec492">watch_spi_write</a></div><div class="ttdeci">bool watch_spi_write(const uint8_t *buf, uint16_t length)</div><div class="ttdoc">Writes a series of values to a device on the SPI bus.</div></div>
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<div class="ttc" id="awatch_8h_html"><div class="ttname"><a href="watch_8h.html">watch.h</a></div></div>
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