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<title>IoT-MBBR (masterthesis): firmware/EFM32HG222F64_iot-mbbr/src/SHT30.c File Reference</title>
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<div id="projectname">IoT-MBBR (masterthesis)
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<div id="projectbrief">Masterthesis upgrading a Moving Bed BioReactor with extra sensors and cloud connectivity.</div>
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<div class="title">SHT30.c File Reference</div> </div>
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<p>SHT30 functionality.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include <stdint.h></code><br />
<code>#include <stdbool.h></code><br />
<code>#include "em_device.h"</code><br />
<code>#include "em_cmu.h"</code><br />
<code>#include "em_gpio.h"</code><br />
<code>#include "em_i2c.h"</code><br />
<code>#include "<a class="el" href="SHT30_8h_source.html">SHT30.h</a>"</code><br />
<code>#include "<a class="el" href="debug__dbprint_8h_source.html">debug_dbprint.h</a>"</code><br />
<code>#include "<a class="el" href="pin__mapping_8h_source.html">pin_mapping.h</a>"</code><br />
<code>#include "<a class="el" href="i2c_8h_source.html">i2c.h</a>"</code><br />
<code>#include "<a class="el" href="delay_8h_source.html">delay.h</a>"</code><br />
</div>
<p><a href="SHT30_8c_source.html">Go to the source code of this file.</a></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:a719dd6d2844a7934d2152f7c76c5192e"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SHT30_8c.html#a719dd6d2844a7934d2152f7c76c5192e">SHT30_ADDRESS</a>   0x44 /* (7 bit notation) */</td></tr>
<tr class="separator:a719dd6d2844a7934d2152f7c76c5192e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abde7d139b798f7b9ce86e0ea4cdfb018"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SHT30_8c.html#abde7d139b798f7b9ce86e0ea4cdfb018">SOFT_RESET_CMD</a>   0x30A2</td></tr>
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<tr class="memitem:a579111fdbc2ed1443e62d19a44fac3ae"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SHT30_8c.html#a579111fdbc2ed1443e62d19a44fac3ae">HIGH_REP_MEAS_CMD</a>   0x2400 /* High repeatablility, no clock stretching */</td></tr>
<tr class="separator:a579111fdbc2ed1443e62d19a44fac3ae"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a78e24905e7dce2aa99d49f001b3529ab"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SHT30_8c.html#a78e24905e7dce2aa99d49f001b3529ab">SEND_MEASUREMENT_COMMAND</a>   0x2C</td></tr>
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<tr class="memitem:ad0f70a7d62edc02779a0a11017d5f6ed"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="SHT30_8c.html#ad0f70a7d62edc02779a0a11017d5f6ed">HIGH_REPEATABILITY_COMMAND</a>   0x06</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a02a1c76cbe8211334129115aa83d56bc"><td class="memItemLeft" align="right" valign="top"><a class="el" href="vl53l1__types_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="SHT30_8c.html#a02a1c76cbe8211334129115aa83d56bc">softResetSHT30</a> (void)</td></tr>
<tr class="memdesc:a02a1c76cbe8211334129115aa83d56bc"><td class="mdescLeft"> </td><td class="mdescRight">Soft reset the SHT30. <a href="#a02a1c76cbe8211334129115aa83d56bc">More...</a><br /></td></tr>
<tr class="separator:a02a1c76cbe8211334129115aa83d56bc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0762b86b42368e94a8f33f1a9be8f004"><td class="memItemLeft" align="right" valign="top"><a class="el" href="vl53l1__types_8h.html#a32f2e37ee053cf2ce8ca28d1f74630e5">int32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="SHT30_8c.html#a0762b86b42368e94a8f33f1a9be8f004">SHT30_readTemp</a> (void)</td></tr>
<tr class="memdesc:a0762b86b42368e94a8f33f1a9be8f004"><td class="mdescLeft"> </td><td class="mdescRight">Do I2C transfers to get the temperature from the SHT30. <a href="#a0762b86b42368e94a8f33f1a9be8f004">More...</a><br /></td></tr>
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Variables</h2></td></tr>
<tr class="memitem:a06fa93f3b67f19cf4ca1eaf90be63bd6"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="SHT30_8c.html#a06fa93f3b67f19cf4ca1eaf90be63bd6">SHT30_reset</a> = false</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>SHT30 functionality. </p>
<dl class="section version"><dt>Version</dt><dd>1.0 </dd></dl>
<dl class="section author"><dt>Author</dt><dd>Brecht Van Eeckhoudt</dd></dl>
<hr/>
<h1><a class="anchor" id="Versions"></a>
Versions</h1>
<ul>
<li>v1.0: Initial version.</li>
</ul>
<hr/>
<h1><a class="anchor" id="License"></a>
License</h1>
<p><b>Copyright (C) 2020 - Brecht Van Eeckhoudt</b></p>
<p>This program is free software: you can redistribute it and/or modify it under the terms of the <b>GNU General Public License</b> as published by the Free Software Foundation, either <b>version 3</b> of the License, or (at your option) any later version.</p>
<p>This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.</p>
<p><em>A copy of the GNU General Public License can be found in the <code>LICENSE</code> file along with this source code.</em></p>
<p><br />
Some methods use code obtained from examples from <a href="https://github.com/SiliconLabs/peripheral_examples">Silicon Labs' GitHub</a>. These sections are licensed under the Silabs License Agreement. See the file "Silabs_License_Agreement.txt" for details. Before using this software for any purpose, you must agree to the terms of that agreement. </p>
<p class="definition">Definition in file <a class="el" href="SHT30_8c_source.html">SHT30.c</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a579111fdbc2ed1443e62d19a44fac3ae"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a579111fdbc2ed1443e62d19a44fac3ae">◆ </a></span>HIGH_REP_MEAS_CMD</h2>
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<td class="memname">#define HIGH_REP_MEAS_CMD   0x2400 /* High repeatablility, no clock stretching */</td>
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<p class="definition">Definition at line <a class="el" href="SHT30_8c_source.html#l00061">61</a> of file <a class="el" href="SHT30_8c_source.html">SHT30.c</a>.</p>
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<a id="ad0f70a7d62edc02779a0a11017d5f6ed"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad0f70a7d62edc02779a0a11017d5f6ed">◆ </a></span>HIGH_REPEATABILITY_COMMAND</h2>
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<td class="memname">#define HIGH_REPEATABILITY_COMMAND   0x06</td>
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<p class="definition">Definition at line <a class="el" href="SHT30_8c_source.html#l00063">63</a> of file <a class="el" href="SHT30_8c_source.html">SHT30.c</a>.</p>
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<a id="a78e24905e7dce2aa99d49f001b3529ab"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a78e24905e7dce2aa99d49f001b3529ab">◆ </a></span>SEND_MEASUREMENT_COMMAND</h2>
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<td class="memname">#define SEND_MEASUREMENT_COMMAND   0x2C</td>
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<p class="definition">Definition at line <a class="el" href="SHT30_8c_source.html#l00062">62</a> of file <a class="el" href="SHT30_8c_source.html">SHT30.c</a>.</p>
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<a id="a719dd6d2844a7934d2152f7c76c5192e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a719dd6d2844a7934d2152f7c76c5192e">◆ </a></span>SHT30_ADDRESS</h2>
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<td class="memname">#define SHT30_ADDRESS   0x44 /* (7 bit notation) */</td>
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<p class="definition">Definition at line <a class="el" href="SHT30_8c_source.html#l00057">57</a> of file <a class="el" href="SHT30_8c_source.html">SHT30.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#abde7d139b798f7b9ce86e0ea4cdfb018">◆ </a></span>SOFT_RESET_CMD</h2>
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<td class="memname">#define SOFT_RESET_CMD   0x30A2</td>
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<p class="definition">Definition at line <a class="el" href="SHT30_8c_source.html#l00060">60</a> of file <a class="el" href="SHT30_8c_source.html">SHT30.c</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
<a id="a0762b86b42368e94a8f33f1a9be8f004"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0762b86b42368e94a8f33f1a9be8f004">◆ </a></span>SHT30_readTemp()</h2>
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<td class="memname"><a class="el" href="vl53l1__types_8h.html#a32f2e37ee053cf2ce8ca28d1f74630e5">int32_t</a> SHT30_readTemp </td>
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<p>Do I2C transfers to get the temperature from the SHT30. </p>
<p>This method also initializes i2C if necessary.</p>
<dl class="section return"><dt>Returns</dt><dd>The temperature (*1000). </dd></dl>
<p class="definition">Definition at line <a class="el" href="SHT30_8c_source.html#l00134">134</a> of file <a class="el" href="SHT30_8c_source.html">SHT30.c</a>.</p>
<div class="fragment"><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> {</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="comment">/* Initialize I2C if not already the case */</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">if</span> (<a class="code" href="i2c_8h.html#a640cbfac112d88a8b3795b1fbf5c8cc0">initI2C</a>() != 0) <span class="keywordflow">return</span> (-6);</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">/* Separate command in two bytes (ANDing with a mask and shifting one byte (8 bits) per position) */</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <a class="code" href="vl53l1__types_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> cmd_buf[2] = {(<a class="code" href="SHT30_8c.html#a579111fdbc2ed1443e62d19a44fac3ae">HIGH_REP_MEAS_CMD</a> >> 8), (<a class="code" href="SHT30_8c.html#a579111fdbc2ed1443e62d19a44fac3ae">HIGH_REP_MEAS_CMD</a> & 0x00FF)};</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">/* Transfer structure */</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  I2C_TransferSeq_TypeDef i2cTransfer;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  I2C_TransferReturn_TypeDef result;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">/* Create buffer for received bytes */</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <a class="code" href="vl53l1__types_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> data_buf[6] = {0, 0, 0, 0, 0, 0};</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// data_buf[6] = cTemp msb, cTemp lsb, cTemp crc, humidity msb, humidity lsb, humidity crc</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// float cTemp = ((((data_buf[0] * 256.0) + data_buf[1]) * 175) / 65535.0) - 45;</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">// float humidity = ((((data_buf[3] * 256.0) + data_buf[4]) * 100) / 65535.0);</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">/* Initializing I2C transfer */</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  i2cTransfer.addr = <a class="code" href="SHT30_8c.html#a719dd6d2844a7934d2152f7c76c5192e">SHT30_ADDRESS</a> << 1; <span class="comment">/* Left shift so we go to 8 bit notation instead of 7 */</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  i2cTransfer.flags = I2C_FLAG_WRITE; <span class="comment">/* Data written from buf[0].data */</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  i2cTransfer.buf[0].data = cmd_buf;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  i2cTransfer.buf[0].len = 2; <span class="comment">/* Command is two bytes */</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  result = I2C_TransferInit(<a class="code" href="pin__mapping_8h.html#a55b277fd20b74f557897aad3b80160cc">BUS_I2C</a>, &i2cTransfer);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">/* Transmitting I2C data (busy-wait until transfer is complete) */</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">while</span> (result == i2cTransferInProgress) result = I2C_Transfer(<a class="code" href="pin__mapping_8h.html#a55b277fd20b74f557897aad3b80160cc">BUS_I2C</a>);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <a class="code" href="delay_8h.html#adb46f4276f5ddf111153701858f85df6">delay</a>(10);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="comment">/* Initializing I2C transfer */</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  i2cTransfer.flags = I2C_FLAG_READ; <span class="comment">/* Data read into buf[0].data */</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  i2cTransfer.buf[0].data = data_buf;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  i2cTransfer.buf[0].len = 6; <span class="comment">/* Data itself is 6 bytes */</span></div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  result = I2C_TransferInit(<a class="code" href="pin__mapping_8h.html#a55b277fd20b74f557897aad3b80160cc">BUS_I2C</a>, &i2cTransfer);</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="comment">/* Transmitting I2C data (busy-wait until transfer is complete) */</span></div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">while</span> (result == i2cTransferInProgress) result = I2C_Transfer(<a class="code" href="pin__mapping_8h.html#a55b277fd20b74f557897aad3b80160cc">BUS_I2C</a>);</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">return</span> ((<a class="code" href="vl53l1__types_8h.html#a32f2e37ee053cf2ce8ca28d1f74630e5">int32_t</a>)((((((data_buf[0] * 256.0) + data_buf[1]) * 175) / 65535.0) - 45) * 1000));</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> }</div><div class="ttc" id="pin__mapping_8h_html_a55b277fd20b74f557897aad3b80160cc"><div class="ttname"><a href="pin__mapping_8h.html#a55b277fd20b74f557897aad3b80160cc">BUS_I2C</a></div><div class="ttdeci">#define BUS_I2C</div><div class="ttdef"><b>Definition:</b> <a href="pin__mapping_8h_source.html#l00053">pin_mapping.h:53</a></div></div>
<div class="ttc" id="SHT30_8c_html_a719dd6d2844a7934d2152f7c76c5192e"><div class="ttname"><a href="SHT30_8c.html#a719dd6d2844a7934d2152f7c76c5192e">SHT30_ADDRESS</a></div><div class="ttdeci">#define SHT30_ADDRESS</div><div class="ttdef"><b>Definition:</b> <a href="SHT30_8c_source.html#l00057">SHT30.c:57</a></div></div>
<div class="ttc" id="vl53l1__types_8h_html_a32f2e37ee053cf2ce8ca28d1f74630e5"><div class="ttname"><a href="vl53l1__types_8h.html#a32f2e37ee053cf2ce8ca28d1f74630e5">int32_t</a></div><div class="ttdeci">int int32_t</div><div class="ttdoc">Typedef defining 32 bit int type. The developer should modify this to suit the platform being deploye...</div><div class="ttdef"><b>Definition:</b> <a href="vl53l1__types_8h_source.html#l00083">vl53l1_types.h:83</a></div></div>
<div class="ttc" id="delay_8h_html_adb46f4276f5ddf111153701858f85df6"><div class="ttname"><a href="delay_8h.html#adb46f4276f5ddf111153701858f85df6">delay</a></div><div class="ttdeci">void delay(uint32_t msDelay)</div><div class="ttdoc">Wait for a certain amount of milliseconds in EM2/3. </div><div class="ttdef"><b>Definition:</b> <a href="delay_8c_source.html#l00124">delay.c:124</a></div></div>
<div class="ttc" id="i2c_8h_html_a640cbfac112d88a8b3795b1fbf5c8cc0"><div class="ttname"><a href="i2c_8h.html#a640cbfac112d88a8b3795b1fbf5c8cc0">initI2C</a></div><div class="ttdeci">int8_t initI2C(void)</div><div class="ttdoc">I2C initialization (if not already initialized). </div><div class="ttdef"><b>Definition:</b> <a href="i2c_8c_source.html#l00066">i2c.c:66</a></div></div>
<div class="ttc" id="vl53l1__types_8h_html_aba7bc1797add20fe3efdf37ced1182c5"><div class="ttname"><a href="vl53l1__types_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Typedef defining 8 bit unsigned char type. The developer should modify this to suit the platform bein...</div><div class="ttdef"><b>Definition:</b> <a href="vl53l1__types_8h_source.html#l00098">vl53l1_types.h:98</a></div></div>
<div class="ttc" id="SHT30_8c_html_a579111fdbc2ed1443e62d19a44fac3ae"><div class="ttname"><a href="SHT30_8c.html#a579111fdbc2ed1443e62d19a44fac3ae">HIGH_REP_MEAS_CMD</a></div><div class="ttdeci">#define HIGH_REP_MEAS_CMD</div><div class="ttdef"><b>Definition:</b> <a href="SHT30_8c_source.html#l00061">SHT30.c:61</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a02a1c76cbe8211334129115aa83d56bc">◆ </a></span>softResetSHT30()</h2>
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<td class="memname"><a class="el" href="vl53l1__types_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a> softResetSHT30 </td>
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<p>Soft reset the SHT30. </p>
<p>This method also initializes i2C if necessary.</p>
<dl class="section note"><dt>Note</dt><dd>This is a static method because it's only internally used in this file and called by other methods if necessary.</dd></dl>
<dl class="section return"><dt>Returns</dt><dd></dd>
<dd>
<ul>
<li><code>0</code> - Byte written correctly. </li>
<li><code>-1</code> - <code>i2cTransferNack</code>, NACK received during transfer. </li>
<li><code>-2</code> - <code>i2cTransferBusErr</code>, Bus error during transfer (misplaced START/STOP). </li>
<li><code>-3</code> - <code>i2cTransferArbLost</code>, Arbitration lost during transfer. </li>
<li><code>-4</code> - <code>i2cTransferUsageFault</code>, Usage fault. </li>
<li><code>-5</code> - <code>i2cTransferSwFault</code>, SW fault. </li>
<li><code>-6</code> - Coudldn't configure I2C. </li>
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<p class="definition">Definition at line <a class="el" href="SHT30_8c_source.html#l00091">91</a> of file <a class="el" href="SHT30_8c_source.html">SHT30.c</a>.</p>
<div class="fragment"><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> {</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">/* Initialize I2C if not already the case */</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">if</span> (<a class="code" href="i2c_8h.html#a640cbfac112d88a8b3795b1fbf5c8cc0">initI2C</a>() != 0) <span class="keywordflow">return</span> (-6);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">/* Separate command in two bytes (ANDing with a mask and shifting one byte (8 bits) per position) */</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <a class="code" href="vl53l1__types_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> cmd_buf[2] = {(<a class="code" href="SHT30_8c.html#abde7d139b798f7b9ce86e0ea4cdfb018">SOFT_RESET_CMD</a> >> 8), (<a class="code" href="SHT30_8c.html#abde7d139b798f7b9ce86e0ea4cdfb018">SOFT_RESET_CMD</a> & 0x00FF)};</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">/* Transfer structure */</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  I2C_TransferSeq_TypeDef i2cTransfer;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  I2C_TransferReturn_TypeDef result;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">/* Initializing I2C transfer */</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  i2cTransfer.addr = <a class="code" href="SHT30_8c.html#a719dd6d2844a7934d2152f7c76c5192e">SHT30_ADDRESS</a> << 1; <span class="comment">/* Left shift so we go to 8 bit notation instead of 7 */</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  i2cTransfer.flags = I2C_FLAG_WRITE; <span class="comment">/* Data written from buf[0].data */</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  i2cTransfer.buf[0].data = cmd_buf;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  i2cTransfer.buf[0].len = 2; <span class="comment">/* Command is two bytes */</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  result = I2C_TransferInit(<a class="code" href="pin__mapping_8h.html#a55b277fd20b74f557897aad3b80160cc">BUS_I2C</a>, &i2cTransfer);</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="comment">/* Transmitting I2C data (busy-wait until transfer is complete) */</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">while</span> (result == i2cTransferInProgress) result = I2C_Transfer(<a class="code" href="pin__mapping_8h.html#a55b277fd20b74f557897aad3b80160cc">BUS_I2C</a>);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="preprocessor">#if DEBUG_DBPRINT == 1 </span><span class="comment">/* DEBUG_DBPRINT */</span><span class="preprocessor"></span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="dbprint_8c.html#acb5d4e1082c625ad85d835d4e053d4d8">dbinfo</a>(<span class="stringliteral">"Soft reset SHT30"</span>);</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor">#endif </span><span class="comment">/* DEBUG_DBPRINT */</span><span class="preprocessor"></span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">/* Indicate that SHT30 has been soft reset */</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="SHT30_8c.html#a06fa93f3b67f19cf4ca1eaf90be63bd6">SHT30_reset</a> = <span class="keyword">true</span>;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> (result);</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> }</div><div class="ttc" id="SHT30_8c_html_a06fa93f3b67f19cf4ca1eaf90be63bd6"><div class="ttname"><a href="SHT30_8c.html#a06fa93f3b67f19cf4ca1eaf90be63bd6">SHT30_reset</a></div><div class="ttdeci">bool SHT30_reset</div><div class="ttdef"><b>Definition:</b> <a href="SHT30_8c_source.html#l00067">SHT30.c:67</a></div></div>
<div class="ttc" id="pin__mapping_8h_html_a55b277fd20b74f557897aad3b80160cc"><div class="ttname"><a href="pin__mapping_8h.html#a55b277fd20b74f557897aad3b80160cc">BUS_I2C</a></div><div class="ttdeci">#define BUS_I2C</div><div class="ttdef"><b>Definition:</b> <a href="pin__mapping_8h_source.html#l00053">pin_mapping.h:53</a></div></div>
<div class="ttc" id="dbprint_8c_html_acb5d4e1082c625ad85d835d4e053d4d8"><div class="ttname"><a href="dbprint_8c.html#acb5d4e1082c625ad85d835d4e053d4d8">dbinfo</a></div><div class="ttdeci">void dbinfo(char *message)</div><div class="ttdoc">Print an info string (char array) to USARTx and go to the next line. </div><div class="ttdef"><b>Definition:</b> <a href="dbprint_8c_source.html#l00505">dbprint.c:505</a></div></div>
<div class="ttc" id="SHT30_8c_html_a719dd6d2844a7934d2152f7c76c5192e"><div class="ttname"><a href="SHT30_8c.html#a719dd6d2844a7934d2152f7c76c5192e">SHT30_ADDRESS</a></div><div class="ttdeci">#define SHT30_ADDRESS</div><div class="ttdef"><b>Definition:</b> <a href="SHT30_8c_source.html#l00057">SHT30.c:57</a></div></div>
<div class="ttc" id="i2c_8h_html_a640cbfac112d88a8b3795b1fbf5c8cc0"><div class="ttname"><a href="i2c_8h.html#a640cbfac112d88a8b3795b1fbf5c8cc0">initI2C</a></div><div class="ttdeci">int8_t initI2C(void)</div><div class="ttdoc">I2C initialization (if not already initialized). </div><div class="ttdef"><b>Definition:</b> <a href="i2c_8c_source.html#l00066">i2c.c:66</a></div></div>
<div class="ttc" id="SHT30_8c_html_abde7d139b798f7b9ce86e0ea4cdfb018"><div class="ttname"><a href="SHT30_8c.html#abde7d139b798f7b9ce86e0ea4cdfb018">SOFT_RESET_CMD</a></div><div class="ttdeci">#define SOFT_RESET_CMD</div><div class="ttdef"><b>Definition:</b> <a href="SHT30_8c_source.html#l00060">SHT30.c:60</a></div></div>
<div class="ttc" id="vl53l1__types_8h_html_aba7bc1797add20fe3efdf37ced1182c5"><div class="ttname"><a href="vl53l1__types_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Typedef defining 8 bit unsigned char type. The developer should modify this to suit the platform bein...</div><div class="ttdef"><b>Definition:</b> <a href="vl53l1__types_8h_source.html#l00098">vl53l1_types.h:98</a></div></div>
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<h2 class="groupheader">Variable Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a06fa93f3b67f19cf4ca1eaf90be63bd6">◆ </a></span>SHT30_reset</h2>
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<p class="definition">Definition at line <a class="el" href="SHT30_8c_source.html#l00067">67</a> of file <a class="el" href="SHT30_8c_source.html">SHT30.c</a>.</p>
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