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arm_matrix_example_f32_8c-example.html

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  111. <div class="title">arm_matrix_example_f32.c</div>  </div>
    112. 

  112. </div><!--header-->
    113. 

  113. <div class="contents">
    114. 

  114. <div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    115. 

  115. <div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
    116. 

  116. <div class="line"><span class="comment">*</span></div>
    117. 

  117. <div class="line"><span class="comment">* $Date:         17. January 2013</span></div>
    118. 

  118. <div class="line"><span class="comment">* $Revision:     V1.4.0</span></div>
    119. 

  119. <div class="line"><span class="comment">*</span></div>
    120. 

  120. <div class="line"><span class="comment">* Project:       CMSIS DSP Library</span></div>
    121. 

  121. <div class="line"><span class="comment">* Title:         arm_matrix_example_f32.c</span></div>
    122. 

  122. <div class="line"><span class="comment">*</span></div>
    123. 

  123. <div class="line"><span class="comment">* Description:   Example code demonstrating least square fit to data</span></div>
    124. 

  124. <div class="line"><span class="comment">*                using matrix functions</span></div>
    125. 

  125. <div class="line"><span class="comment">*</span></div>
    126. 

  126. <div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
    127. 

  127. <div class="line"><span class="comment">*</span></div>
    128. 

  128. <div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
    129. 

  129. <div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
    130. 

  130. <div class="line"><span class="comment">* are met:</span></div>
    131. 

  131. <div class="line"><span class="comment">*   - Redistributions of source code must retain the above copyright</span></div>
    132. 

  132. <div class="line"><span class="comment">*     notice, this list of conditions and the following disclaimer.</span></div>
    133. 

  133. <div class="line"><span class="comment">*   - Redistributions in binary form must reproduce the above copyright</span></div>
    134. 

  134. <div class="line"><span class="comment">*     notice, this list of conditions and the following disclaimer in</span></div>
    135. 

  135. <div class="line"><span class="comment">*     the documentation and/or other materials provided with the</span></div>
    136. 

  136. <div class="line"><span class="comment">*     distribution.</span></div>
    137. 

  137. <div class="line"><span class="comment">*   - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
    138. 

  138. <div class="line"><span class="comment">*     may be used to endorse or promote products derived from this</span></div>
    139. 

  139. <div class="line"><span class="comment">*     software without specific prior written permission.</span></div>
    140. 

  140. <div class="line"><span class="comment">*</span></div>
    141. 

  141. <div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
    142. 

  142. <div class="line"><span class="comment">* &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
    143. 

  143. <div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
    144. 

  144. <div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
    145. 

  145. <div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
    146. 

  146. <div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
    147. 

  147. <div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
    148. 

  148. <div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
    149. 

  149. <div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
    150. 

  150. <div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
    151. 

  151. <div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
    152. 

  152. <div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
    153. 

  153. <div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div>
    154. 

  154. <div class="line"></div>
    155. 

  155. <div class="line"><span class="preprocessor">#include &quot;<a class="code" href="arm__math_8h.html">arm_math.h</a>&quot;</span></div>
    156. 

  156. <div class="line"><span class="preprocessor">#include &quot;math_helper.h&quot;</span></div>
    157. 

  157. <div class="line"></div>
    158. 

  158. <div class="line"><span class="preprocessor">#define SNR_THRESHOLD   90</span></div>
    159. 

  159. <div class="line"><span class="preprocessor"></span></div>
    160. 

  160. <div class="line"><span class="comment">/* --------------------------------------------------------------------------------</span></div>
    161. 

  161. <div class="line"><span class="comment">* Test input data(Cycles) taken from FIR Q15 module for differant cases of blockSize</span></div>
    162. 

  162. <div class="line"><span class="comment">* and tapSize</span></div>
    163. 

  163. <div class="line"><span class="comment">* --------------------------------------------------------------------------------- */</span></div>
    164. 

  164. <div class="line"></div>
    165. 

  165. <div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a0"></a><a class="code" href="arm__matrix__example__f32_8c.html#a974d5f0aace6a99e29ca767907fb3b9f">B_f32</a>[4] =</div>
    166. 

  166. <div class="line">{</div>
    167. 

  167. <div class="line">  782.0, 7577.0, 470.0, 4505.0</div>
    168. 

  168. <div class="line">};</div>
    169. 

  169. <div class="line"></div>
    170. 

  170. <div class="line"><span class="comment">/* --------------------------------------------------------------------------------</span></div>
    171. 

  171. <div class="line"><span class="comment">* Formula to fit is  C1 + C2 * numTaps + C3 * blockSize + C4 * numTaps * blockSize</span></div>
    172. 

  172. <div class="line"><span class="comment">* -------------------------------------------------------------------------------- */</span></div>
    173. 

  173. <div class="line"></div>
    174. 

  174. <div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a1"></a><a class="code" href="arm__matrix__example__f32_8c.html#aed27b92d9847194d9dcce40cecf2b48a">A_f32</a>[16] =</div>
    175. 

  175. <div class="line">{</div>
    176. 

  176. <div class="line">  <span class="comment">/* Const,   numTaps,   blockSize,   numTaps*blockSize */</span></div>
    177. 

  177. <div class="line">  1.0,     32.0,      4.0,     128.0,</div>
    178. 

  178. <div class="line">  1.0,     32.0,     64.0,    2048.0,</div>
    179. 

  179. <div class="line">  1.0,     16.0,      4.0,      64.0,</div>
    180. 

  180. <div class="line">  1.0,     16.0,     64.0,    1024.0,</div>
    181. 

  181. <div class="line">};</div>
    182. 

  182. <div class="line"></div>
    183. 

  183. <div class="line"></div>
    184. 

  184. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    185. 

  185. <div class="line"><span class="comment">* Temporary buffers  for storing intermediate values</span></div>
    186. 

  186. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    187. 

  187. <div class="line"><span class="comment">/* Transpose of A Buffer */</span></div>
    188. 

  188. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a2"></a><a class="code" href="arm__matrix__example__f32_8c.html#a46dc2aa6dfc692af7b4a1379d7329ccd">AT_f32</a>[16];</div>
    189. 

  189. <div class="line"><span class="comment">/* (Transpose of A * A) Buffer */</span></div>
    190. 

  190. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a3"></a><a class="code" href="arm__matrix__example__f32_8c.html#a867497c6bf86014513bf2ad3551aa896">ATMA_f32</a>[16];</div>
    191. 

  191. <div class="line"><span class="comment">/* Inverse(Transpose of A * A)  Buffer */</span></div>
    192. 

  192. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a4"></a><a class="code" href="arm__matrix__example__f32_8c.html#a44425c149c52b326a3b7a77676686f00">ATMAI_f32</a>[16];</div>
    193. 

  193. <div class="line"><span class="comment">/* Test Output Buffer */</span></div>
    194. 

  194. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a5"></a><a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">X_f32</a>[4];</div>
    195. 

  195. <div class="line"></div>
    196. 

  196. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    197. 

  197. <div class="line"><span class="comment">* Reference ouput buffer C1, C2, C3 and C4 taken from MATLAB</span></div>
    198. 

  198. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    199. 

  199. <div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a6"></a><a class="code" href="arm__matrix__example__f32_8c.html#a6184758419722fa16bb883097c2f596b">xRef_f32</a>[4] = {73.0, 8.0, 21.25, 2.875};</div>
    200. 

  200. <div class="line"></div>
    201. 

  201. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a7"></a><a class="code" href="_a_r_m_2arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a>;</div>
    202. 

  202. <div class="line"></div>
    203. 

  203. <div class="line"></div>
    204. 

  204. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    205. 

  205. <div class="line"><span class="comment">* Max magnitude FFT Bin test</span></div>
    206. 

  206. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    207. 

  207. <div class="line"></div>
    208. 

  208. <div class="line">int32_t <a name="a8"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a196718f834091385d38586a0ce4009dc">main</a>(<span class="keywordtype">void</span>)</div>
    209. 

  209. <div class="line">{</div>
    210. 

  210. <div class="line"></div>
    211. 

  211. <div class="line">  <a name="_a9"></a><a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> A;      <span class="comment">/* Matrix A Instance */</span></div>
    212. 

  212. <div class="line">  <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> AT;     <span class="comment">/* Matrix AT(A transpose) instance */</span></div>
    213. 

  213. <div class="line">  <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> ATMA;   <span class="comment">/* Matrix ATMA( AT multiply with A) instance */</span></div>
    214. 

  214. <div class="line">  <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> ATMAI;  <span class="comment">/* Matrix ATMAI(Inverse of ATMA) instance */</span></div>
    215. 

  215. <div class="line">  <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> B;      <span class="comment">/* Matrix B instance */</span></div>
    216. 

  216. <div class="line">  <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> X;      <span class="comment">/* Matrix X(Unknown Matrix) instance */</span></div>
    217. 

  217. <div class="line"></div>
    218. 

  218. <div class="line">  uint32_t srcRows, srcColumns;  <span class="comment">/* Temporary variables */</span></div>
    219. 

  219. <div class="line">  <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6" title="Error status returned by some functions in the library.">arm_status</a> <a name="a10"></a><a class="code" href="_a_r_m_2arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
    220. 

  220. <div class="line"></div>
    221. 

  221. <div class="line">  <span class="comment">/* Initialise A Matrix Instance with numRows, numCols and data array(A_f32) */</span></div>
    222. 

  222. <div class="line">  srcRows = 4;</div>
    223. 

  223. <div class="line">  srcColumns = 4;</div>
    224. 

  224. <div class="line">  <a name="a11"></a><a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&amp;A, srcRows, srcColumns, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="arm__matrix__example__f32_8c.html#aed27b92d9847194d9dcce40cecf2b48a">A_f32</a>);</div>
    225. 

  225. <div class="line"></div>
    226. 

  226. <div class="line">  <span class="comment">/* Initialise Matrix Instance AT with numRows, numCols and data array(AT_f32) */</span></div>
    227. 

  227. <div class="line">  srcRows = 4;</div>
    228. 

  228. <div class="line">  srcColumns = 4;</div>
    229. 

  229. <div class="line">  <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&amp;AT, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a46dc2aa6dfc692af7b4a1379d7329ccd">AT_f32</a>);</div>
    230. 

  230. <div class="line"></div>
    231. 

  231. <div class="line">  <span class="comment">/* calculation of A transpose */</span></div>
    232. 

  232. <div class="line">  status = <a name="a12"></a><a class="code" href="group___matrix_trans.html#gad7dd9f108429da13d3864696ceeec789" title="Floating-point matrix transpose.">arm_mat_trans_f32</a>(&amp;A, &amp;AT);</div>
    233. 

  233. <div class="line"></div>
    234. 

  234. <div class="line"></div>
    235. 

  235. <div class="line">  <span class="comment">/* Initialise ATMA Matrix Instance with numRows, numCols and data array(ATMA_f32) */</span></div>
    236. 

  236. <div class="line">  srcRows = 4;</div>
    237. 

  237. <div class="line">  srcColumns = 4;</div>
    238. 

  238. <div class="line">  <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&amp;ATMA, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a867497c6bf86014513bf2ad3551aa896">ATMA_f32</a>);</div>
    239. 

  239. <div class="line"></div>
    240. 

  240. <div class="line">  <span class="comment">/* calculation of AT Multiply with A */</span></div>
    241. 

  241. <div class="line">  status = <a name="a13"></a><a class="code" href="group___matrix_mult.html#ga917bf0270310c1d3f0eda1fc7c0026a0" title="Floating-point matrix multiplication.">arm_mat_mult_f32</a>(&amp;AT, &amp;A, &amp;ATMA);</div>
    242. 

  242. <div class="line"></div>
    243. 

  243. <div class="line">  <span class="comment">/* Initialise ATMAI Matrix Instance with numRows, numCols and data array(ATMAI_f32) */</span></div>
    244. 

  244. <div class="line">  srcRows = 4;</div>
    245. 

  245. <div class="line">  srcColumns = 4;</div>
    246. 

  246. <div class="line">  <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&amp;ATMAI, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a44425c149c52b326a3b7a77676686f00">ATMAI_f32</a>);</div>
    247. 

  247. <div class="line"></div>
    248. 

  248. <div class="line">  <span class="comment">/* calculation of Inverse((Transpose(A) * A) */</span></div>
    249. 

  249. <div class="line">  status = <a name="a14"></a><a class="code" href="group___matrix_inv.html#ga542be7aabbf7a2297a4b62cf212910e3" title="Floating-point matrix inverse.">arm_mat_inverse_f32</a>(&amp;ATMA, &amp;ATMAI);</div>
    250. 

  250. <div class="line"></div>
    251. 

  251. <div class="line">  <span class="comment">/* calculation of (Inverse((Transpose(A) * A)) *  Transpose(A)) */</span></div>
    252. 

  252. <div class="line">  status = <a class="code" href="group___matrix_mult.html#ga917bf0270310c1d3f0eda1fc7c0026a0" title="Floating-point matrix multiplication.">arm_mat_mult_f32</a>(&amp;ATMAI, &amp;AT, &amp;ATMA);</div>
    253. 

  253. <div class="line"></div>
    254. 

  254. <div class="line">  <span class="comment">/* Initialise B Matrix Instance with numRows, numCols and data array(B_f32) */</span></div>
    255. 

  255. <div class="line">  srcRows = 4;</div>
    256. 

  256. <div class="line">  srcColumns = 1;</div>
    257. 

  257. <div class="line">  <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&amp;B, srcRows, srcColumns, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="arm__matrix__example__f32_8c.html#a974d5f0aace6a99e29ca767907fb3b9f">B_f32</a>);</div>
    258. 

  258. <div class="line"></div>
    259. 

  259. <div class="line">  <span class="comment">/* Initialise X Matrix Instance with numRows, numCols and data array(X_f32) */</span></div>
    260. 

  260. <div class="line">  srcRows = 4;</div>
    261. 

  261. <div class="line">  srcColumns = 1;</div>
    262. 

  262. <div class="line">  <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&amp;X, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">X_f32</a>);</div>
    263. 

  263. <div class="line"></div>
    264. 

  264. <div class="line">  <span class="comment">/* calculation ((Inverse((Transpose(A) * A)) *  Transpose(A)) * B) */</span></div>
    265. 

  265. <div class="line">  status = <a class="code" href="group___matrix_mult.html#ga917bf0270310c1d3f0eda1fc7c0026a0" title="Floating-point matrix multiplication.">arm_mat_mult_f32</a>(&amp;ATMA, &amp;B, &amp;X);</div>
    266. 

  266. <div class="line"></div>
    267. 

  267. <div class="line">  <span class="comment">/* Comparison of reference with test output */</span></div>
    268. 

  268. <div class="line">  <a class="code" href="_a_r_m_2arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> = <a name="a15"></a><a class="code" href="arm__convolution__example_2_a_r_m_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab" title="Caluclation of SNR.">arm_snr_f32</a>((<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="arm__matrix__example__f32_8c.html#a6184758419722fa16bb883097c2f596b">xRef_f32</a>, <a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">X_f32</a>, 4);</div>
    269. 

  269. <div class="line"></div>
    270. 

  270. <div class="line">  <span class="comment">/*------------------------------------------------------------------------------</span></div>
    271. 

  271. <div class="line"><span class="comment">  *            Initialise status depending on SNR calculations</span></div>
    272. 

  272. <div class="line"><span class="comment">  *------------------------------------------------------------------------------*/</span></div>
    273. 

  273. <div class="line">  <span class="keywordflow">if</span>( <a class="code" href="_a_r_m_2arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> &gt; <a name="a16"></a><a class="code" href="_a_r_m_2arm__convolution__example__f32_8c.html#af08ec3fef897d77c6817638bf0e0c5c6">SNR_THRESHOLD</a>)</div>
    274. 

  274. <div class="line">  {</div>
    275. 

  275. <div class="line">    status = <a name="a17"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
    276. 

  276. <div class="line">  }</div>
    277. 

  277. <div class="line">  <span class="keywordflow">else</span></div>
    278. 

  278. <div class="line">  {</div>
    279. 

  279. <div class="line">    status = <a name="a18"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
    280. 

  280. <div class="line">  }</div>
    281. 

  281. <div class="line"></div>
    282. 

  282. <div class="line"></div>
    283. 

  283. <div class="line">  <span class="comment">/* ----------------------------------------------------------------------</span></div>
    284. 

  284. <div class="line"><span class="comment">  ** Loop here if the signals fail the PASS check.</span></div>
    285. 

  285. <div class="line"><span class="comment">  ** This denotes a test failure</span></div>
    286. 

  286. <div class="line"><span class="comment">  ** ------------------------------------------------------------------- */</span></div>
    287. 

  287. <div class="line">  <span class="keywordflow">if</span>( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
    288. 

  288. <div class="line">  {</div>
    289. 

  289. <div class="line">    <span class="keywordflow">while</span>(1);</div>
    290. 

  290. <div class="line">  }</div>
    291. 

  291. <div class="line"></div>
    292. 

  292. <div class="line">  <span class="keywordflow">while</span>(1);                             <span class="comment">/* main function does not return */</span></div>
    293. 

  293. <div class="line">}</div>
    294. 

  294. <div class="line"></div>
    295. 

  295. </div><!-- fragment --> </div><!-- contents -->
    296. 

  296. </div><!-- doc-content -->
    297. 

  297. <!-- start footer part -->
    298. 

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    300. 

  300.     <li class="footer">Generated on Tue Sep 23 2014 18:52:40 for CMSIS-DSP by ARM Ltd. All rights reserved.
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    307. 

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    310.