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51<a href="a00869.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2015 - 2016, Freescale Semiconductor, Inc.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright 2016-2017 NXP</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * All rights reserved.</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * SPDX-License-Identifier: BSD-3-Clause</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">/*! \file main_baremetal.c</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">    \brief Bare metal implementation of sensor fusion on FRDM-K64F.</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">    This file shows the recommended way to incorporate sensor fusion capabilities</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">    into a bare metal (no RTOS) project.</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;</div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">// KSDK  and ISSDK Headers</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &quot;fsl_debug_console.h&quot;</span>  <span class="comment">// KSDK header file for the debug interface</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &quot;pin_mux.h&quot;</span>            <span class="comment">// KSDK header file for pin mux initialization functions</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &quot;clock_config.h&quot;</span>       <span class="comment">// KSDK header file for clock configuration</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &quot;board.h&quot;</span>              <span class="comment">// KSDK header file to define board configuration</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#ifndef CPU_LPC54114J256BD64_cm4</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &quot;fsl_port.h&quot;</span>           <span class="comment">// KSDK header file for Port I/O control</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &quot;fsl_pit.h&quot;</span>            <span class="comment">// KSDK header file for Periodic Interval Timer</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &quot;fsl_ctimer.h&quot;</span>         <span class="comment">// KSDK header file for the LPC CTIMER module</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &quot;fsl_i2c.h&quot;</span>            <span class="comment">// KSDK header file for I2C interfaces</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00170.html">register_io_i2c.h</a>&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &quot;fsl_i2c_cmsis.h&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00026.html">fxas21002.h</a>&quot;</span>          <span class="comment">// Register and bit-field definitions</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00158.html">mpl3115.h</a>&quot;</span>            <span class="comment">// Register and bit-field definitions</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00080.html">fxos8700.h</a>&quot;</span>           <span class="comment">// Register and bit-field definitions</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment">// Sensor Fusion Headers</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00914.html">sensor_fusion.h</a>&quot;</span>      <span class="comment">// top level magCal and sensor fusion interfaces</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00779.html">control.h</a>&quot;</span>                    <span class="comment">// Command/Streaming interface - application specific</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00923.html">status.h</a>&quot;</span>                     <span class="comment">// Status indicator interface - application specific</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00842.html">drivers.h</a>&quot;</span>                    <span class="comment">// NXP sensor drivers OR customer-supplied drivers</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00836.html">driver_pit.h</a>&quot;</span>         <span class="comment">// Project-specific - PIT is used to control main() timing loop</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="a00869.html#a75f40af5caf43ce58b7a18015c210e4a">   42</a></span>&#160;<a class="code" href="a03819.html">registerDeviceInfo_t</a> <a class="code" href="a00869.html#a75f40af5caf43ce58b7a18015c210e4a">i2cBusInfo</a> = {</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    .<a class="code" href="a03819.html#a693f84e28d48677a73cd40d7e5fc79ed">deviceInstance</a>     = <a class="code" href="a04343.html#ab0c7969a7fffaabe78d43db2b12ad840">I2C_S_DEVICE_INDEX</a>,</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    .functionParam      = <a class="code" href="a00641.html#a6667e81e5b32250febd3d46511d9309d">SMC</a>,</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    .idleFunction       = (<a class="code" href="a00179.html#a5deff6bd688b60b97b84fc7e78d3ea63">registeridlefunction_t</a>) <a class="code" href="a00638.html#a5423cac017d1d1a8ac8bba8e91e80e29">SMC_SetPowerModeWait</a></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;};</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="comment">// Global data structures</span></div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="a00869.html#afa81c629d378fe700f351a1bce411ad5">   49</a></span>&#160;<a class="code" href="a04047.html">SensorFusionGlobals</a> <a class="code" href="a00869.html#afa81c629d378fe700f351a1bce411ad5">sfg</a>;                <span class="comment">///&lt; This is the primary sensor fusion data structure</span></div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="a00869.html#aba91a51cf63f0616f30d8d993ce1bcb6">   50</a></span>&#160;<span class="comment"></span><span class="keyword">struct </span><a class="code" href="a03967.html">ControlSubsystem</a> <a class="code" href="a00869.html#aba91a51cf63f0616f30d8d993ce1bcb6">controlSubsystem</a>;      <span class="comment">///&lt; used for serial communications</span></div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="a00869.html#a0f75c5f0a59e320e1c011ec01d5dec4c">   51</a></span>&#160;<span class="comment"></span><span class="keyword">struct </span><a class="code" href="a04051.html">StatusSubsystem</a> <a class="code" href="a00869.html#a0f75c5f0a59e320e1c011ec01d5dec4c">statusSubsystem</a>;        <span class="comment">///&lt; provides visual (usually LED) status indicator</span></div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="a00869.html#a84786a835b4ead54496764473c994db5">   52</a></span>&#160;<span class="comment"></span><span class="keyword">struct </span><a class="code" href="a03991.html">PhysicalSensor</a> <a class="code" href="a00869.html#a84786a835b4ead54496764473c994db5">sensors</a>[3];              <span class="comment">///&lt; This implementation uses up to 3 sensors</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="comment">/// This is a bare-metal implementation of the NXP sensor fusion demo build.</span></div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="a00869.html#a840291bc02cba5474a4cb46a9b9566fe">   55</a></span>&#160;<span class="comment"></span><span class="keywordtype">int</span> <a class="code" href="a00869.html#a840291bc02cba5474a4cb46a9b9566fe">main</a>(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;{</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    ARM_DRIVER_I2C* <a class="code" href="a00368.html#a3c22bed16a7c769894081222aa6107d8">I2Cdrv</a> = &amp;<a class="code" href="a04343.html#ad6a14737695a4218d07182b86b21f570">I2C_S_DRIVER</a>;   <span class="comment">// defined in the &lt;shield&gt;.h file</span></div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    uint16_t i=0;                       <span class="comment">// general counter variable</span></div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    <a class="code" href="a00959.html#ga2c9fe54b6b84723fbaa590a6f4576966">BOARD_InitPins</a>();                   <span class="comment">// defined in pin_mux.c, initializes pkg pins</span></div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <a class="code" href="a04292.html#a8d81431cbbc4b01da56afbff0f766379">BOARD_BootClockRUN</a>();               <span class="comment">// defined in clock_config.c, initializes clocks</span></div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    <a class="code" href="a04109.html#a4c84ccb952cb083367d7040cf9de3db8">BOARD_InitDebugConsole</a>();           <span class="comment">// defined in board.c, initializes the OpenSDA port</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    I2Cdrv-&gt;Initialize(<a class="code" href="a04343.html#a60ac2e3bb32ae33e2fd542f607a58ac4">I2C_S_SIGNAL_EVENT</a>);           <span class="comment">// Initialize the KSDK driver for the I2C port</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    I2Cdrv-&gt;PowerControl(ARM_POWER_FULL);      <span class="comment">// Set the I2C Power mode.</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    I2Cdrv-&gt;Control(ARM_I2C_BUS_SPEED, ARM_I2C_BUS_SPEED_FAST);      <span class="comment">// Configure the I2C bus speed</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    <a class="code" href="a00776.html#a67029acf1be9712c5d30c625132ad958">initializeControlPort</a>(&amp;<a class="code" href="a00869.html#aba91a51cf63f0616f30d8d993ce1bcb6">controlSubsystem</a>);                           <span class="comment">// configure pins and ports for the control sub-system</span></div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <a class="code" href="a00920.html#a01619741119cf3432f8cfff23334c793">initializeStatusSubsystem</a>(&amp;<a class="code" href="a00869.html#a0f75c5f0a59e320e1c011ec01d5dec4c">statusSubsystem</a>);                        <span class="comment">// configure pins and ports for the status sub-system</span></div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <a class="code" href="a00911.html#a43b44018042fabb5179c2e62277cc942">initSensorFusionGlobals</a>(&amp;sfg, &amp;<a class="code" href="a00869.html#a0f75c5f0a59e320e1c011ec01d5dec4c">statusSubsystem</a>, &amp;<a class="code" href="a00869.html#aba91a51cf63f0616f30d8d993ce1bcb6">controlSubsystem</a>); <span class="comment">// Initialize sensor fusion structures</span></div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <span class="comment">// &quot;install&quot; the sensors we will be using</span></div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="preprocessor">#if F_USING_ACCEL || F_USING_MAG</span></div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    sfg.<a class="code" href="a04047.html#a22ddc1cea4daa0d93be0fe7d48365dbb">installSensor</a>(&amp;sfg, &amp;<a class="code" href="a00869.html#a84786a835b4ead54496764473c994db5">sensors</a>[0], <a class="code" href="a00545.html#a88d604d4e5776dfa8f16848425223cbb">FXOS8700_I2C_ADDR</a>,  1, (<span class="keywordtype">void</span>*) I2Cdrv, &amp;i2cBusInfo, <a class="code" href="a00812.html#ac61bf451efc3a4eab179dbc59268b3e7">FXOS8700_Init</a>,  <a class="code" href="a00812.html#a5388755d21701d88d79a4bfda99dbebf">FXOS8700_Read</a>);</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="preprocessor">#if F_USING_GYRO</span></div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    sfg.<a class="code" href="a04047.html#a22ddc1cea4daa0d93be0fe7d48365dbb">installSensor</a>(&amp;sfg, &amp;<a class="code" href="a00869.html#a84786a835b4ead54496764473c994db5">sensors</a>[1], <a class="code" href="a00545.html#a16a56b988ac0de778585d40fdada58f0">FXAS21002_I2C_ADDR</a>, 1, (<span class="keywordtype">void</span>*) I2Cdrv, &amp;i2cBusInfo, <a class="code" href="a00842.html#a81c5b987e709b3991bc7c1bc1e659c1f">FXAS21002_Init</a>, <a class="code" href="a00842.html#a1e2a1a192ed7f150fc24fc11df8d4c1e">FXAS21002_Read</a>);</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="preprocessor">#if F_USING_PRESSURE</span></div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    sfg.<a class="code" href="a04047.html#a22ddc1cea4daa0d93be0fe7d48365dbb">installSensor</a>(&amp;sfg, &amp;<a class="code" href="a00869.html#a84786a835b4ead54496764473c994db5">sensors</a>[2], <a class="code" href="a00545.html#adec31513f28aceda1b78b1dba2f161fb">MPL3115_I2C_ADDR</a>,   1, (<span class="keywordtype">void</span>*) I2Cdrv, &amp;i2cBusInfo, <a class="code" href="a00842.html#af48197046b6d2f232932bf5ac61c4534">MPL3115_Init</a>,   <a class="code" href="a00842.html#a54f6d4249d7a6d3484b35f7c98970425">MPL3115_Read</a>);</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    sfg.<a class="code" href="a04047.html#a4c9ce90c92e284691468585f6a55d79e">initializeFusionEngine</a>(&amp;sfg);                   <span class="comment">// This will initialize sensors and magnetic calibration</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    <a class="code" href="a00797.html#aa9242caadd99e8ac4fdce86681b61740">pit_init</a>(1000000/<a class="code" href="a00917.html#a470d8d33fe0efafcc0c0835fbea14f5e">FUSION_HZ</a>);                <span class="comment">// pitIsrFlag will be set true at FUSION_HZ periodic intervals</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    sfg.<a class="code" href="a04047.html#aa22f9fd7adaca53616ef6bfb6cb051b4">setStatus</a>(&amp;sfg, <a class="code" href="a00914.html#a69ee883e1c22b117df163c0bd83f66dda50d1448013c6f17125caee18aa418af7">NORMAL</a>);                <span class="comment">// If we got this far, let&#39;s set status state to NORMAL</span></div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    {</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        <span class="keywordflow">if</span> (<span class="keyword">true</span> == <a class="code" href="a00797.html#a4bd7666380e01cee8eb7cd5f0df5e3bf">pitIsrFlag</a>) {               <span class="comment">// Check whether occur interupt and toggle LED</span></div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;            sfg.<a class="code" href="a04047.html#a15e66ae3ad63ad091317ad0aefa53ce7">readSensors</a>(&amp;sfg, 1);           <span class="comment">// Reads sensors, applies HAL and does averaging (if applicable)</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;            sfg.<a class="code" href="a04047.html#a7466779558c661297ca6dc36d829605c">conditionSensorReadings</a>(&amp;sfg);  <span class="comment">// magCal is run as part of this</span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;            sfg.<a class="code" href="a04047.html#afc72aca0c3842cde4aa4bb0dcdfb4237">runFusion</a>(&amp;sfg);                <span class="comment">// Run the actual fusion algorithms</span></div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;            sfg.<a class="code" href="a04047.html#ac01270fc7330df24acd1cd888397ef07">applyPerturbation</a>(&amp;sfg);        <span class="comment">// apply debug perturbation (testing only)</span></div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;            sfg.<a class="code" href="a04047.html#a0e90feae26cd26ab80bc78cfd9364512">loopcounter</a>++;                  <span class="comment">// The loop counter is used to &quot;serialize&quot; mag cal operations</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            i=i+1;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;            <span class="keywordflow">if</span> (i&gt;=4) {                         <span class="comment">// Some status codes include a &quot;blink&quot; feature.  This loop</span></div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;                    i=0;                        <span class="comment">// should cycle at least four times for that to operate correctly.</span></div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;                    sfg.<a class="code" href="a04047.html#a186a484bdd7f6c3210a2ee6d2763c6a2">updateStatus</a>(&amp;sfg);     <span class="comment">// This is where pending status updates are made visible</span></div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;            }</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;            sfg.<a class="code" href="a04047.html#af6a232c7866a9093f9a5cb51372d4f97">queueStatus</a>(&amp;sfg, <a class="code" href="a00914.html#a69ee883e1c22b117df163c0bd83f66dda50d1448013c6f17125caee18aa418af7">NORMAL</a>);      <span class="comment">// assume NORMAL status for next pass through the loop</span></div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;            sfg.<a class="code" href="a04047.html#a51cbe943cdee0fd0a2ff72d2a04fad9a">pControlSubsystem</a>-&gt;<a class="code" href="a03967.html#a2fc3f3736130dec532bf7f12d4091e55">stream</a>(&amp;sfg, <a class="code" href="a00776.html#a3b6c71dda245dccb73352c7264176527">sUARTOutputBuffer</a>);      <span class="comment">// Send stream data to the Sensor Fusion Toolbox</span></div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;            <a class="code" href="a00797.html#a4bd7666380e01cee8eb7cd5f0df5e3bf">pitIsrFlag</a> = <span class="keyword">false</span>;                 <span class="comment">// Reset the flag for the next cycle</span></div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;        }</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    }</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;}<span class="comment"></span></div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="comment">/// \endcode</span></div><div class="ttc" id="a04047_html_a15e66ae3ad63ad091317ad0aefa53ce7"><div class="ttname"><a href="a04047.html#a15e66ae3ad63ad091317ad0aefa53ce7">SensorFusionGlobals::readSensors</a></div><div class="ttdeci">readSensors_t * readSensors</div><div class="ttdoc">read all physical sensors </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00527">sensor_fusion.h:527</a></div></div>
52<div class="ttc" id="a00869_html_aba91a51cf63f0616f30d8d993ce1bcb6"><div class="ttname"><a href="a00869.html#aba91a51cf63f0616f30d8d993ce1bcb6">controlSubsystem</a></div><div class="ttdeci">struct ControlSubsystem controlSubsystem</div><div class="ttdoc">used for serial communications </div><div class="ttdef"><b>Definition:</b> <a href="a00869_source.html#l00050">main_baremetal.c:50</a></div></div>
53<div class="ttc" id="a03819_html"><div class="ttname"><a href="a03819.html">registerDeviceInfo_t</a></div><div class="ttdoc">This structure defines the device specific info required by register I/O. </div><div class="ttdef"><b>Definition:</b> <a href="a00179_source.html#l00102">sensor_drv.h:102</a></div></div>
54<div class="ttc" id="a04047_html_a4c9ce90c92e284691468585f6a55d79e"><div class="ttname"><a href="a04047.html#a4c9ce90c92e284691468585f6a55d79e">SensorFusionGlobals::initializeFusionEngine</a></div><div class="ttdeci">initializeFusionEngine_t * initializeFusionEngine</div><div class="ttdoc">set sensor fusion structures to initial values </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00525">sensor_fusion.h:525</a></div></div>
55<div class="ttc" id="a00842_html_a54f6d4249d7a6d3484b35f7c98970425"><div class="ttname"><a href="a00842.html#a54f6d4249d7a6d3484b35f7c98970425">MPL3115_Read</a></div><div class="ttdeci">int8_t MPL3115_Read(struct PhysicalSensor *sensor, SensorFusionGlobals *sfg)</div></div>
56<div class="ttc" id="a00812_html_ac61bf451efc3a4eab179dbc59268b3e7"><div class="ttname"><a href="a00812.html#ac61bf451efc3a4eab179dbc59268b3e7">FXOS8700_Init</a></div><div class="ttdeci">int8_t FXOS8700_Init(struct PhysicalSensor *sensor, SensorFusionGlobals *sfg)</div><div class="ttdef"><b>Definition:</b> <a href="a00812_source.html#l00130">driver_FXOS8700.c:130</a></div></div>
57<div class="ttc" id="a04343_html_a60ac2e3bb32ae33e2fd542f607a58ac4"><div class="ttname"><a href="a04343.html#a60ac2e3bb32ae33e2fd542f607a58ac4">I2C_S_SIGNAL_EVENT</a></div><div class="ttdeci">#define I2C_S_SIGNAL_EVENT</div><div class="ttdef"><b>Definition:</b> <a href="a04343_source.html#l00034">issdk_hal.h:34</a></div></div>
58<div class="ttc" id="a00842_html"><div class="ttname"><a href="a00842.html">drivers.h</a></div><div class="ttdoc">Provides function prototypes for driver level interfaces. </div></div>
59<div class="ttc" id="a00869_html_a84786a835b4ead54496764473c994db5"><div class="ttname"><a href="a00869.html#a84786a835b4ead54496764473c994db5">sensors</a></div><div class="ttdeci">struct PhysicalSensor sensors[3]</div><div class="ttdoc">This implementation uses up to 3 sensors. </div><div class="ttdef"><b>Definition:</b> <a href="a00869_source.html#l00052">main_baremetal.c:52</a></div></div>
60<div class="ttc" id="a00914_html_a69ee883e1c22b117df163c0bd83f66dda50d1448013c6f17125caee18aa418af7"><div class="ttname"><a href="a00914.html#a69ee883e1c22b117df163c0bd83f66dda50d1448013c6f17125caee18aa418af7">NORMAL</a></div><div class="ttdoc">Operation is Nominal. </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00108">sensor_fusion.h:108</a></div></div>
61<div class="ttc" id="a03991_html"><div class="ttname"><a href="a03991.html">PhysicalSensor</a></div><div class="ttdoc">An instance of PhysicalSensor structure type should be allocated for each physical sensors (combo dev...</div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00155">sensor_fusion.h:155</a></div></div>
62<div class="ttc" id="a04047_html_af6a232c7866a9093f9a5cb51372d4f97"><div class="ttname"><a href="a04047.html#af6a232c7866a9093f9a5cb51372d4f97">SensorFusionGlobals::queueStatus</a></div><div class="ttdeci">setStatus_t * queueStatus</div><div class="ttdoc">queue status change for next regular interval </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00532">sensor_fusion.h:532</a></div></div>
63<div class="ttc" id="a04292_html_a8d81431cbbc4b01da56afbff0f766379"><div class="ttname"><a href="a04292.html#a8d81431cbbc4b01da56afbff0f766379">BOARD_BootClockRUN</a></div><div class="ttdeci">#define BOARD_BootClockRUN</div><div class="ttdef"><b>Definition:</b> <a href="a04292_source.html#l00019">clock_config.h:19</a></div></div>
64<div class="ttc" id="a03819_html_a693f84e28d48677a73cd40d7e5fc79ed"><div class="ttname"><a href="a03819.html#a693f84e28d48677a73cd40d7e5fc79ed">registerDeviceInfo_t::deviceInstance</a></div><div class="ttdeci">uint8_t deviceInstance</div><div class="ttdef"><b>Definition:</b> <a href="a00179_source.html#l00106">sensor_drv.h:106</a></div></div>
65<div class="ttc" id="a00641_html_a6667e81e5b32250febd3d46511d9309d"><div class="ttname"><a href="a00641.html#a6667e81e5b32250febd3d46511d9309d">SMC</a></div><div class="ttdeci">#define SMC</div><div class="ttdef"><b>Definition:</b> <a href="a00641_source.html#l00118">lpc54114.h:118</a></div></div>
66<div class="ttc" id="a00923_html"><div class="ttname"><a href="a00923.html">status.h</a></div><div class="ttdoc">Application-specific status subsystem. </div></div>
67<div class="ttc" id="a04047_html_a7466779558c661297ca6dc36d829605c"><div class="ttname"><a href="a04047.html#a7466779558c661297ca6dc36d829605c">SensorFusionGlobals::conditionSensorReadings</a></div><div class="ttdeci">conditionSensorReadings_t * conditionSensorReadings</div><div class="ttdoc">preprocessing step for sensor fusion </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00529">sensor_fusion.h:529</a></div></div>
68<div class="ttc" id="a00779_html"><div class="ttname"><a href="a00779.html">control.h</a></div><div class="ttdoc">Defines control sub-system. </div></div>
69<div class="ttc" id="a04047_html"><div class="ttname"><a href="a04047.html">SensorFusionGlobals</a></div><div class="ttdoc">The top level fusion structure. </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00454">sensor_fusion.h:454</a></div></div>
70<div class="ttc" id="a04109_html_a4c84ccb952cb083367d7040cf9de3db8"><div class="ttname"><a href="a04109.html#a4c84ccb952cb083367d7040cf9de3db8">BOARD_InitDebugConsole</a></div><div class="ttdeci">void BOARD_InitDebugConsole(void)</div><div class="ttdef"><b>Definition:</b> <a href="a04109_source.html#l00015">board.c:15</a></div></div>
71<div class="ttc" id="a00911_html_a43b44018042fabb5179c2e62277cc942"><div class="ttname"><a href="a00911.html#a43b44018042fabb5179c2e62277cc942">initSensorFusionGlobals</a></div><div class="ttdeci">void initSensorFusionGlobals(SensorFusionGlobals *sfg, StatusSubsystem *pStatusSubsystem, ControlSubsystem *pControlSubsystem)</div><div class="ttdoc">utility function to insert default values in the top level structure </div><div class="ttdef"><b>Definition:</b> <a href="a00911_source.html#l00051">sensor_fusion.c:51</a></div></div>
72<div class="ttc" id="a00842_html_a81c5b987e709b3991bc7c1bc1e659c1f"><div class="ttname"><a href="a00842.html#a81c5b987e709b3991bc7c1bc1e659c1f">FXAS21002_Init</a></div><div class="ttdeci">int8_t FXAS21002_Init(struct PhysicalSensor *sensor, SensorFusionGlobals *sfg)</div></div>
73<div class="ttc" id="a00170_html"><div class="ttname"><a href="a00170.html">register_io_i2c.h</a></div><div class="ttdoc">The register_io_i2c.h file declares low-level interface functions for reading and writing sensor regi...</div></div>
74<div class="ttc" id="a00869_html_afa81c629d378fe700f351a1bce411ad5"><div class="ttname"><a href="a00869.html#afa81c629d378fe700f351a1bce411ad5">sfg</a></div><div class="ttdeci">SensorFusionGlobals sfg</div><div class="ttdoc">This is the primary sensor fusion data structure. </div><div class="ttdef"><b>Definition:</b> <a href="a00869_source.html#l00049">main_baremetal.c:49</a></div></div>
75<div class="ttc" id="a03967_html"><div class="ttname"><a href="a03967.html">ControlSubsystem</a></div><div class="ttdoc">he ControlSubsystem encapsulates command and data streaming functions. </div><div class="ttdef"><b>Definition:</b> <a href="a00779_source.html#l00042">control.h:42</a></div></div>
76<div class="ttc" id="a00842_html_af48197046b6d2f232932bf5ac61c4534"><div class="ttname"><a href="a00842.html#af48197046b6d2f232932bf5ac61c4534">MPL3115_Init</a></div><div class="ttdeci">int8_t MPL3115_Init(struct PhysicalSensor *sensor, SensorFusionGlobals *sfg)</div></div>
77<div class="ttc" id="a00179_html_a5deff6bd688b60b97b84fc7e78d3ea63"><div class="ttname"><a href="a00179.html#a5deff6bd688b60b97b84fc7e78d3ea63">registeridlefunction_t</a></div><div class="ttdeci">void(* registeridlefunction_t)(void *userParam)</div><div class="ttdoc">This is the register idle function type. </div><div class="ttdef"><b>Definition:</b> <a href="a00179_source.html#l00097">sensor_drv.h:97</a></div></div>
78<div class="ttc" id="a04047_html_afc72aca0c3842cde4aa4bb0dcdfb4237"><div class="ttname"><a href="a04047.html#afc72aca0c3842cde4aa4bb0dcdfb4237">SensorFusionGlobals::runFusion</a></div><div class="ttdeci">runFusion_t * runFusion</div><div class="ttdoc">run the fusion routines </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00528">sensor_fusion.h:528</a></div></div>
79<div class="ttc" id="a00026_html"><div class="ttname"><a href="a00026.html">fxas21002.h</a></div><div class="ttdoc">The fxas21002.h contains the fxas21002 sensor register definitions and its bit mask. </div></div>
80<div class="ttc" id="a00545_html_a16a56b988ac0de778585d40fdada58f0"><div class="ttname"><a href="a00545.html#a16a56b988ac0de778585d40fdada58f0">FXAS21002_I2C_ADDR</a></div><div class="ttdeci">#define FXAS21002_I2C_ADDR</div><div class="ttdef"><b>Definition:</b> <a href="a00545_source.html#l00032">auto_detection_shield.h:32</a></div></div>
81<div class="ttc" id="a00914_html"><div class="ttname"><a href="a00914.html">sensor_fusion.h</a></div><div class="ttdoc">The sensor_fusion.h file implements the top level programming interface. </div></div>
82<div class="ttc" id="a00797_html_aa9242caadd99e8ac4fdce86681b61740"><div class="ttname"><a href="a00797.html#aa9242caadd99e8ac4fdce86681b61740">pit_init</a></div><div class="ttdeci">void pit_init(uint32_t microseconds)</div><div class="ttdef"><b>Definition:</b> <a href="a00797_source.html#l00064">driver_ctimer.c:64</a></div></div>
83<div class="ttc" id="a00158_html"><div class="ttname"><a href="a00158.html">mpl3115.h</a></div></div>
84<div class="ttc" id="a04047_html_aa22f9fd7adaca53616ef6bfb6cb051b4"><div class="ttname"><a href="a04047.html#aa22f9fd7adaca53616ef6bfb6cb051b4">SensorFusionGlobals::setStatus</a></div><div class="ttdeci">setStatus_t * setStatus</div><div class="ttdoc">change status indicator immediately </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00531">sensor_fusion.h:531</a></div></div>
85<div class="ttc" id="a04343_html_ad6a14737695a4218d07182b86b21f570"><div class="ttname"><a href="a04343.html#ad6a14737695a4218d07182b86b21f570">I2C_S_DRIVER</a></div><div class="ttdeci">#define I2C_S_DRIVER</div><div class="ttdef"><b>Definition:</b> <a href="a04343_source.html#l00033">issdk_hal.h:33</a></div></div>
86<div class="ttc" id="a00368_html_a3c22bed16a7c769894081222aa6107d8"><div class="ttname"><a href="a00368.html#a3c22bed16a7c769894081222aa6107d8">I2Cdrv</a></div><div class="ttdeci">ARM_DRIVER_I2C * I2Cdrv</div><div class="ttdef"><b>Definition:</b> <a href="a00368_source.html#l00083">fxls896xaf_motion_wakeup.c:83</a></div></div>
87<div class="ttc" id="a00776_html_a3b6c71dda245dccb73352c7264176527"><div class="ttname"><a href="a00776.html#a3b6c71dda245dccb73352c7264176527">sUARTOutputBuffer</a></div><div class="ttdeci">uint8_t sUARTOutputBuffer[256]</div><div class="ttdoc">main output buffer defined in control.c </div><div class="ttdef"><b>Definition:</b> <a href="a00776_source.html#l00037">control.c:37</a></div></div>
88<div class="ttc" id="a04047_html_a186a484bdd7f6c3210a2ee6d2763c6a2"><div class="ttname"><a href="a04047.html#a186a484bdd7f6c3210a2ee6d2763c6a2">SensorFusionGlobals::updateStatus</a></div><div class="ttdeci">updateStatus_t * updateStatus</div><div class="ttdoc">status=next status </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00533">sensor_fusion.h:533</a></div></div>
89<div class="ttc" id="a00917_html_a470d8d33fe0efafcc0c0835fbea14f5e"><div class="ttname"><a href="a00917.html#a470d8d33fe0efafcc0c0835fbea14f5e">FUSION_HZ</a></div><div class="ttdeci">#define FUSION_HZ</div><div class="ttdoc">(int) actual rate of fusion algorithm execution and sensor FIFO reads </div><div class="ttdef"><b>Definition:</b> <a href="a00917_source.html#l00068">standard_build.h:68</a></div></div>
90<div class="ttc" id="a04047_html_a22ddc1cea4daa0d93be0fe7d48365dbb"><div class="ttname"><a href="a04047.html#a22ddc1cea4daa0d93be0fe7d48365dbb">SensorFusionGlobals::installSensor</a></div><div class="ttdeci">installSensor_t * installSensor</div><div class="ttdoc">function for installing a new sensor into t </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00524">sensor_fusion.h:524</a></div></div>
91<div class="ttc" id="a04047_html_a51cbe943cdee0fd0a2ff72d2a04fad9a"><div class="ttname"><a href="a04047.html#a51cbe943cdee0fd0a2ff72d2a04fad9a">SensorFusionGlobals::pControlSubsystem</a></div><div class="ttdeci">struct ControlSubsystem * pControlSubsystem</div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00462">sensor_fusion.h:462</a></div></div>
92<div class="ttc" id="a00776_html_a67029acf1be9712c5d30c625132ad958"><div class="ttname"><a href="a00776.html#a67029acf1be9712c5d30c625132ad958">initializeControlPort</a></div><div class="ttdeci">int8_t initializeControlPort(ControlSubsystem *pComm)</div><div class="ttdoc">Initialize the control subsystem and all related hardware. </div><div class="ttdef"><b>Definition:</b> <a href="a00776_source.html#l00160">control.c:160</a></div></div>
93<div class="ttc" id="a00638_html_a5423cac017d1d1a8ac8bba8e91e80e29"><div class="ttname"><a href="a00638.html#a5423cac017d1d1a8ac8bba8e91e80e29">SMC_SetPowerModeWait</a></div><div class="ttdeci">status_t SMC_SetPowerModeWait(void *arg)</div><div class="ttdoc">Configures the system to WAIT power mode. API name used from Kinetis family to maintain compatibility...</div><div class="ttdef"><b>Definition:</b> <a href="a00638_source.html#l00155">lpc54114.c:155</a></div></div>
94<div class="ttc" id="a00869_html_a0f75c5f0a59e320e1c011ec01d5dec4c"><div class="ttname"><a href="a00869.html#a0f75c5f0a59e320e1c011ec01d5dec4c">statusSubsystem</a></div><div class="ttdeci">struct StatusSubsystem statusSubsystem</div><div class="ttdoc">provides visual (usually LED) status indicator </div><div class="ttdef"><b>Definition:</b> <a href="a00869_source.html#l00051">main_baremetal.c:51</a></div></div>
95<div class="ttc" id="a00812_html_a5388755d21701d88d79a4bfda99dbebf"><div class="ttname"><a href="a00812.html#a5388755d21701d88d79a4bfda99dbebf">FXOS8700_Read</a></div><div class="ttdeci">int8_t FXOS8700_Read(struct PhysicalSensor *sensor, SensorFusionGlobals *sfg)</div><div class="ttdef"><b>Definition:</b> <a href="a00812_source.html#l00249">driver_FXOS8700.c:249</a></div></div>
96<div class="ttc" id="a00869_html_a75f40af5caf43ce58b7a18015c210e4a"><div class="ttname"><a href="a00869.html#a75f40af5caf43ce58b7a18015c210e4a">i2cBusInfo</a></div><div class="ttdeci">registerDeviceInfo_t i2cBusInfo</div><div class="ttdef"><b>Definition:</b> <a href="a00869_source.html#l00042">main_baremetal.c:42</a></div></div>
97<div class="ttc" id="a00545_html_adec31513f28aceda1b78b1dba2f161fb"><div class="ttname"><a href="a00545.html#adec31513f28aceda1b78b1dba2f161fb">MPL3115_I2C_ADDR</a></div><div class="ttdeci">#define MPL3115_I2C_ADDR</div><div class="ttdef"><b>Definition:</b> <a href="a00545_source.html#l00046">auto_detection_shield.h:46</a></div></div>
98<div class="ttc" id="a00842_html_a1e2a1a192ed7f150fc24fc11df8d4c1e"><div class="ttname"><a href="a00842.html#a1e2a1a192ed7f150fc24fc11df8d4c1e">FXAS21002_Read</a></div><div class="ttdeci">int8_t FXAS21002_Read(struct PhysicalSensor *sensor, SensorFusionGlobals *sfg)</div></div>
99<div class="ttc" id="a00869_html_a840291bc02cba5474a4cb46a9b9566fe"><div class="ttname"><a href="a00869.html#a840291bc02cba5474a4cb46a9b9566fe">main</a></div><div class="ttdeci">int main(void)</div><div class="ttdoc">This is a bare-metal implementation of the NXP sensor fusion demo build. </div><div class="ttdef"><b>Definition:</b> <a href="a00869_source.html#l00055">main_baremetal.c:55</a></div></div>
100<div class="ttc" id="a00080_html"><div class="ttname"><a href="a00080.html">fxos8700.h</a></div><div class="ttdoc">The fxos8700.h file contains the register definitions for FXOS8700 sensor driver. ...</div></div>
101<div class="ttc" id="a00797_html_a4bd7666380e01cee8eb7cd5f0df5e3bf"><div class="ttname"><a href="a00797.html#a4bd7666380e01cee8eb7cd5f0df5e3bf">pitIsrFlag</a></div><div class="ttdeci">volatile bool pitIsrFlag</div><div class="ttdef"><b>Definition:</b> <a href="a00797_source.html#l00049">driver_ctimer.c:49</a></div></div>
102<div class="ttc" id="a00920_html_a01619741119cf3432f8cfff23334c793"><div class="ttname"><a href="a00920.html#a01619741119cf3432f8cfff23334c793">initializeStatusSubsystem</a></div><div class="ttdeci">void initializeStatusSubsystem(StatusSubsystem *pStatus)</div><div class="ttdef"><b>Definition:</b> <a href="a00920_source.html#l00165">status.c:165</a></div></div>
103<div class="ttc" id="a04343_html_ab0c7969a7fffaabe78d43db2b12ad840"><div class="ttname"><a href="a04343.html#ab0c7969a7fffaabe78d43db2b12ad840">I2C_S_DEVICE_INDEX</a></div><div class="ttdeci">#define I2C_S_DEVICE_INDEX</div><div class="ttdef"><b>Definition:</b> <a href="a04343_source.html#l00035">issdk_hal.h:35</a></div></div>
104<div class="ttc" id="a00545_html_a88d604d4e5776dfa8f16848425223cbb"><div class="ttname"><a href="a00545.html#a88d604d4e5776dfa8f16848425223cbb">FXOS8700_I2C_ADDR</a></div><div class="ttdeci">#define FXOS8700_I2C_ADDR</div><div class="ttdef"><b>Definition:</b> <a href="a00545_source.html#l00025">auto_detection_shield.h:25</a></div></div>
105<div class="ttc" id="a00959_html_ga2c9fe54b6b84723fbaa590a6f4576966"><div class="ttname"><a href="a00959.html#ga2c9fe54b6b84723fbaa590a6f4576966">BOARD_InitPins</a></div><div class="ttdeci">void BOARD_InitPins(void)</div><div class="ttdoc">Configures pin routing and optionally pin electrical features. </div><div class="ttdef"><b>Definition:</b> <a href="a04541_source.html#l00047">pin_mux.c:47</a></div></div>
106<div class="ttc" id="a03967_html_a2fc3f3736130dec532bf7f12d4091e55"><div class="ttname"><a href="a03967.html#a2fc3f3736130dec532bf7f12d4091e55">ControlSubsystem::stream</a></div><div class="ttdeci">streamData_t * stream</div><div class="ttdoc">function to create packets for serial stream </div><div class="ttdef"><b>Definition:</b> <a href="a00779_source.html#l00051">control.h:51</a></div></div>
107<div class="ttc" id="a04047_html_ac01270fc7330df24acd1cd888397ef07"><div class="ttname"><a href="a04047.html#ac01270fc7330df24acd1cd888397ef07">SensorFusionGlobals::applyPerturbation</a></div><div class="ttdeci">applyPerturbation_t * applyPerturbation</div><div class="ttdoc">apply step function for testing purposes </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00526">sensor_fusion.h:526</a></div></div>
108<div class="ttc" id="a04051_html"><div class="ttname"><a href="a04051.html">StatusSubsystem</a></div><div class="ttdoc">StatusSubsystem() provides an object-like interface for communicating status to the user...</div><div class="ttdef"><b>Definition:</b> <a href="a00923_source.html#l00022">status.h:22</a></div></div>
109<div class="ttc" id="a04047_html_a0e90feae26cd26ab80bc78cfd9364512"><div class="ttname"><a href="a04047.html#a0e90feae26cd26ab80bc78cfd9364512">SensorFusionGlobals::loopcounter</a></div><div class="ttdeci">int32_t loopcounter</div><div class="ttdoc">counter incrementing each iteration of sensor fusion (typically 25Hz) </div><div class="ttdef"><b>Definition:</b> <a href="a00914_source.html#l00471">sensor_fusion.h:471</a></div></div>
110<div class="ttc" id="a00836_html"><div class="ttname"><a href="a00836.html">driver_pit.h</a></div><div class="ttdoc">Provides a simple abstraction for a periodic interval timer. </div></div>
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