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    113. 

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

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    115. 

  115. <dt><a class="anchor" id="_deprecated000001"></a>Global <a class="el" href="arm__math_8h.html#a9de2e0a5785be82866bcb96012282248">__SIMD32</a>  (addr)</dt>
    116. 

  116. <dd></dd>
    117. 

  117. <dt><a class="anchor" id="_deprecated000002"></a>Global <a class="el" href="group__ComplexFFT.html#ga9fadd650b802f612ae558ddaab789a6d">arm_cfft_radix2_f32</a>  (const <a class="el" href="structarm__cfft__radix2__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix2_instance_f32</a> *S, float32_t *pSrc)</dt>
    118. 

  118. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a> and will be removed in the future <dl class="params"><dt>Parameters</dt><dd>
    119. 

  119.   <table class="params">
    120. 

  120.     <tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the floating-point Radix-2 CFFT/CIFFT structure </td></tr>
    121. 

  121.     <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
    122. 

  122.   </table>
    123. 

  123.   </dd>
    124. 

  124. </dl>
    125. 

  125. <dl class="section return"><dt>Returns</dt><dd>none  </dd></dl>
    126. 

  126. </dd>
    127. 

  127. <dt><a class="anchor" id="_deprecated000003"></a>Global <a class="el" href="group__ComplexFFT.html#gac9565e6bc7229577ecf5e090313cafd7">arm_cfft_radix2_init_f32</a>  (<a class="el" href="structarm__cfft__radix2__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix2_instance_f32</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
    128. 

  128. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    129. 

  129.   <table class="params">
    130. 

  130.     <tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the floating-point CFFT/CIFFT structure </td></tr>
    131. 

  131.     <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
    132. 

  132.     <tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
    133. 

  133. <li>value = 0: forward transform</li>
    134. 

  134. <li>value = 1: inverse transform </li>
    135. 

  135. </ul>
    136. 

  136. </td></tr>
    137. 

  137.     <tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
    138. 

  138. <li>value = 0: disables bit reversal of output</li>
    139. 

  139. <li>value = 1: enables bit reversal of output </li>
    140. 

  140. </ul>
    141. 

  141. </td></tr>
    142. 

  142.   </table>
    143. 

  143.   </dd>
    144. 

  144. </dl>
    145. 

  145. <dl class="section return"><dt>Returns</dt><dd>execution status<ul>
    146. 

  146. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
    147. 

  147. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
    148. 

  148. </ul>
    149. 

  149. </dd></dl>
    150. 

  150. </dd>
    151. 

  151. <dt><a class="anchor" id="_deprecated000004"></a>Global <a class="el" href="group__ComplexFFT.html#ga5c5b2127b3c4ea2d03692127f8543858">arm_cfft_radix2_init_q15</a>  (<a class="el" href="structarm__cfft__radix2__instance__q15.html" title="Instance structure for the Q15 CFFT/CIFFT function. ">arm_cfft_radix2_instance_q15</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
    152. 

  152. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> and will be removed <dl class="params"><dt>Parameters</dt><dd>
    153. 

  153.   <table class="params">
    154. 

  154.     <tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the Q15 CFFT/CIFFT structure. </td></tr>
    155. 

  155.     <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT. </td></tr>
    156. 

  156.     <tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
    157. 

  157. <li>value = 0: forward transform</li>
    158. 

  158. <li>value = 1: inverse transform </li>
    159. 

  159. </ul>
    160. 

  160. </td></tr>
    161. 

  161.     <tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
    162. 

  162. <li>value = 0: disables bit reversal of output</li>
    163. 

  163. <li>value = 1: enables bit reversal of output </li>
    164. 

  164. </ul>
    165. 

  165. </td></tr>
    166. 

  166.   </table>
    167. 

  167.   </dd>
    168. 

  168. </dl>
    169. 

  169. <dl class="section return"><dt>Returns</dt><dd>execution status<ul>
    170. 

  170. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
    171. 

  171. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
    172. 

  172. </ul>
    173. 

  173. </dd></dl>
    174. 

  174. </dd>
    175. 

  175. <dt><a class="anchor" id="_deprecated000005"></a>Global <a class="el" href="group__ComplexFFT.html#gabec9611e77382f31e152668bf6b4b638">arm_cfft_radix2_init_q31</a>  (<a class="el" href="structarm__cfft__radix2__instance__q31.html" title="Instance structure for the Radix-2 Q31 CFFT/CIFFT function. ">arm_cfft_radix2_instance_q31</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
    176. 

  176. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga5a0008bd997ab6e2e299ef2fb272fb4b">arm_cfft_q31</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    177. 

  177.   <table class="params">
    178. 

  178.     <tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the Q31 CFFT/CIFFT structure </td></tr>
    179. 

  179.     <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
    180. 

  180.     <tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
    181. 

  181. <li>value = 0: forward transform</li>
    182. 

  182. <li>value = 1: inverse transform </li>
    183. 

  183. </ul>
    184. 

  184. </td></tr>
    185. 

  185.     <tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
    186. 

  186. <li>value = 0: disables bit reversal of output</li>
    187. 

  187. <li>value = 1: enables bit reversal of output </li>
    188. 

  188. </ul>
    189. 

  189. </td></tr>
    190. 

  190.   </table>
    191. 

  191.   </dd>
    192. 

  192. </dl>
    193. 

  193. <dl class="section return"><dt>Returns</dt><dd>execution status<ul>
    194. 

  194. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
    195. 

  195. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
    196. 

  196. </ul>
    197. 

  197. </dd></dl>
    198. 

  198. </dd>
    199. 

  199. <dt><a class="anchor" id="_deprecated000006"></a>Global <a class="el" href="group__ComplexFFT.html#ga55b424341dc3efd3fa0bcaaff4bdbf40">arm_cfft_radix2_q15</a>  (const <a class="el" href="structarm__cfft__radix2__instance__q15.html" title="Instance structure for the Q15 CFFT/CIFFT function. ">arm_cfft_radix2_instance_q15</a> *S, q15_t *pSrc)</dt>
    200. 

  200. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    201. 

  201.   <table class="params">
    202. 

  202.     <tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the fixed-point CFFT/CIFFT structure </td></tr>
    203. 

  203.     <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
    204. 

  204.   </table>
    205. 

  205.   </dd>
    206. 

  206. </dl>
    207. 

  207. <dl class="section return"><dt>Returns</dt><dd>none  </dd></dl>
    208. 

  208. </dd>
    209. 

  209. <dt><a class="anchor" id="_deprecated000007"></a>Global <a class="el" href="group__ComplexFFT.html#ga6321f703ec87a274aedaab33d3e766b4">arm_cfft_radix2_q31</a>  (const <a class="el" href="structarm__cfft__radix2__instance__q31.html" title="Instance structure for the Radix-2 Q31 CFFT/CIFFT function. ">arm_cfft_radix2_instance_q31</a> *S, q31_t *pSrc)</dt>
    210. 

  210. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga5a0008bd997ab6e2e299ef2fb272fb4b">arm_cfft_q31</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    211. 

  211.   <table class="params">
    212. 

  212.     <tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the fixed-point CFFT/CIFFT structure </td></tr>
    213. 

  213.     <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
    214. 

  214.   </table>
    215. 

  215.   </dd>
    216. 

  216. </dl>
    217. 

  217. <dl class="section return"><dt>Returns</dt><dd>none  </dd></dl>
    218. 

  218. </dd>
    219. 

  219. <dt><a class="anchor" id="_deprecated000008"></a>Global <a class="el" href="group__ComplexFFT.html#ga521f670cd9c571bc61aff9bec89f4c26">arm_cfft_radix4_f32</a>  (const <a class="el" href="structarm__cfft__radix4__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix4_instance_f32</a> *S, float32_t *pSrc)</dt>
    220. 

  220. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    221. 

  221.   <table class="params">
    222. 

  222.     <tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the floating-point Radix-4 CFFT/CIFFT structure </td></tr>
    223. 

  223.     <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
    224. 

  224.   </table>
    225. 

  225.   </dd>
    226. 

  226. </dl>
    227. 

  227. <dl class="section return"><dt>Returns</dt><dd>none  </dd></dl>
    228. 

  228. </dd>
    229. 

  229. <dt><a class="anchor" id="_deprecated000009"></a>Global <a class="el" href="group__ComplexFFT.html#gaf336459f684f0b17bfae539ef1b1b78a">arm_cfft_radix4_init_f32</a>  (<a class="el" href="structarm__cfft__radix4__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix4_instance_f32</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
    230. 

  230. <dd>Do not use this function. It has been superceded by <a class="el" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    231. 

  231.   <table class="params">
    232. 

  232.     <tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the floating-point CFFT/CIFFT structure </td></tr>
    233. 

  233.     <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
    234. 

  234.     <tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
    235. 

  235. <li>value = 0: forward transform</li>
    236. 

  236. <li>value = 1: inverse transform </li>
    237. 

  237. </ul>
    238. 

  238. </td></tr>
    239. 

  239.     <tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
    240. 

  240. <li>value = 0: disables bit reversal of output</li>
    241. 

  241. <li>value = 1: enables bit reversal of output </li>
    242. 

  242. </ul>
    243. 

  243. </td></tr>
    244. 

  244.   </table>
    245. 

  245.   </dd>
    246. 

  246. </dl>
    247. 

  247. <dl class="section return"><dt>Returns</dt><dd>execution status<ul>
    248. 

  248. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
    249. 

  249. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
    250. 

  250. </ul>
    251. 

  251. </dd></dl>
    252. 

  252. </dd>
    253. 

  253. <dt><a class="anchor" id="_deprecated000010"></a>Global <a class="el" href="group__ComplexFFT.html#ga0c2acfda3126c452e75b81669e8ad9ef">arm_cfft_radix4_init_q15</a>  (<a class="el" href="structarm__cfft__radix4__instance__q15.html" title="Instance structure for the Q15 CFFT/CIFFT function. ">arm_cfft_radix4_instance_q15</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
    254. 

  254. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    255. 

  255.   <table class="params">
    256. 

  256.     <tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the Q15 CFFT/CIFFT structure </td></tr>
    257. 

  257.     <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
    258. 

  258.     <tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
    259. 

  259. <li>value = 0: forward transform</li>
    260. 

  260. <li>value = 1: inverse transform </li>
    261. 

  261. </ul>
    262. 

  262. </td></tr>
    263. 

  263.     <tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
    264. 

  264. <li>value = 0: disables bit reversal of output</li>
    265. 

  265. <li>value = 1: enables bit reversal of output </li>
    266. 

  266. </ul>
    267. 

  267. </td></tr>
    268. 

  268.   </table>
    269. 

  269.   </dd>
    270. 

  270. </dl>
    271. 

  271. <dl class="section return"><dt>Returns</dt><dd>execution status<ul>
    272. 

  272. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
    273. 

  273. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
    274. 

  274. </ul>
    275. 

  275. </dd></dl>
    276. 

  276. </dd>
    277. 

  277. <dt><a class="anchor" id="_deprecated000011"></a>Global <a class="el" href="group__ComplexFFT.html#gad5caaafeec900c8ff72321c01bbd462c">arm_cfft_radix4_init_q31</a>  (<a class="el" href="structarm__cfft__radix4__instance__q31.html" title="Instance structure for the Q31 CFFT/CIFFT function. ">arm_cfft_radix4_instance_q31</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
    278. 

  278. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga5a0008bd997ab6e2e299ef2fb272fb4b">arm_cfft_q31</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    279. 

  279.   <table class="params">
    280. 

  280.     <tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the Q31 CFFT/CIFFT structure. </td></tr>
    281. 

  281.     <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT. </td></tr>
    282. 

  282.     <tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
    283. 

  283. <li>value = 0: forward transform</li>
    284. 

  284. <li>value = 1: inverse transform </li>
    285. 

  285. </ul>
    286. 

  286. </td></tr>
    287. 

  287.     <tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
    288. 

  288. <li>value = 0: disables bit reversal of output</li>
    289. 

  289. <li>value = 1: enables bit reversal of output </li>
    290. 

  290. </ul>
    291. 

  291. </td></tr>
    292. 

  292.   </table>
    293. 

  293.   </dd>
    294. 

  294. </dl>
    295. 

  295. <dl class="section return"><dt>Returns</dt><dd>execution status<ul>
    296. 

  296. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
    297. 

  297. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
    298. 

  298. </ul>
    299. 

  299. </dd></dl>
    300. 

  300. </dd>
    301. 

  301. <dt><a class="anchor" id="_deprecated000012"></a>Global <a class="el" href="group__ComplexFFT.html#ga8d66cdac41b8bf6cefdb895456eee84a">arm_cfft_radix4_q15</a>  (const <a class="el" href="structarm__cfft__radix4__instance__q15.html" title="Instance structure for the Q15 CFFT/CIFFT function. ">arm_cfft_radix4_instance_q15</a> *S, q15_t *pSrc)</dt>
    302. 

  302. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    303. 

  303.   <table class="params">
    304. 

  304.     <tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the Q15 CFFT/CIFFT structure. </td></tr>
    305. 

  305.     <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer. Processing occurs in-place. </td></tr>
    306. 

  306.   </table>
    307. 

  307.   </dd>
    308. 

  308. </dl>
    309. 

  309. <dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
    310. 

  310. </dd>
    311. 

  311. <dt><a class="anchor" id="_deprecated000013"></a>Global <a class="el" href="group__ComplexFFT.html#gafde3ee1f58cf393b45a9073174fff548">arm_cfft_radix4_q31</a>  (const <a class="el" href="structarm__cfft__radix4__instance__q31.html" title="Instance structure for the Q31 CFFT/CIFFT function. ">arm_cfft_radix4_instance_q31</a> *S, q31_t *pSrc)</dt>
    312. 

  312. <dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga5a0008bd997ab6e2e299ef2fb272fb4b">arm_cfft_q31</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    313. 

  313.   <table class="params">
    314. 

  314.     <tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the Q31 CFFT/CIFFT structure </td></tr>
    315. 

  315.     <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
    316. 

  316.   </table>
    317. 

  317.   </dd>
    318. 

  318. </dl>
    319. 

  319. <dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
    320. 

  320. </dd>
    321. 

  321. <dt><a class="anchor" id="_deprecated000014"></a>Global <a class="el" href="group__RealFFT.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32</a>  (const <a class="el" href="structarm__rfft__instance__f32.html" title="Instance structure for the floating-point RFFT/RIFFT function. ">arm_rfft_instance_f32</a> *S, float32_t *pSrc, float32_t *pDst)</dt>
    322. 

  322. <dd>Do not use this function. It has been superceded by <a class="el" href="group__RealFFT.html#ga5d2ec62f3e35575eba467d09ddcd98b5">arm_rfft_fast_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    323. 

  323.   <table class="params">
    324. 

  324.     <tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the floating-point RFFT/RIFFT structure </td></tr>
    325. 

  325.     <tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to the input buffer </td></tr>
    326. 

  326.     <tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output buffer </td></tr>
    327. 

  327.   </table>
    328. 

  328.   </dd>
    329. 

  329. </dl>
    330. 

  330. <dl class="section return"><dt>Returns</dt><dd>none  </dd></dl>
    331. 

  331. </dd>
    332. 

  332. <dt><a class="anchor" id="_deprecated000015"></a>Global <a class="el" href="group__RealFFT.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32</a>  (<a class="el" href="structarm__rfft__instance__f32.html" title="Instance structure for the floating-point RFFT/RIFFT function. ">arm_rfft_instance_f32</a> *S, <a class="el" href="structarm__cfft__radix4__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix4_instance_f32</a> *S_CFFT, uint32_t fftLenReal, uint32_t ifftFlagR, uint32_t bitReverseFlag)</dt>
    333. 

  333. <dd>Do not use this function. It has been superceded by <a class="el" href="group__RealFFT.html#gac5fceb172551e7c11eb4d0e17ef15aa3">arm_rfft_fast_init_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
    334. 

  334.   <table class="params">
    335. 

  335.     <tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the floating-point RFFT/RIFFT structure </td></tr>
    336. 

  336.     <tr><td class="paramdir">[in,out]</td><td class="paramname">S_CFFT</td><td>points to an instance of the floating-point CFFT/CIFFT structure </td></tr>
    337. 

  337.     <tr><td class="paramdir">[in]</td><td class="paramname">fftLenReal</td><td>length of the FFT. </td></tr>
    338. 

  338.     <tr><td class="paramdir">[in]</td><td class="paramname">ifftFlagR</td><td>flag that selects transform direction<ul>
    339. 

  339. <li>value = 0: forward transform</li>
    340. 

  340. <li>value = 1: inverse transform </li>
    341. 

  341. </ul>
    342. 

  342. </td></tr>
    343. 

  343.     <tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
    344. 

  344. <li>value = 0: disables bit reversal of output</li>
    345. 

  345. <li>value = 1: enables bit reversal of output </li>
    346. 

  346. </ul>
    347. 

  347. </td></tr>
    348. 

  348.   </table>
    349. 

  349.   </dd>
    350. 

  350. </dl>
    351. 

  351. <dl class="section return"><dt>Returns</dt><dd>execution status<ul>
    352. 

  352. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
    353. 

  353. <li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLenReal</code> is not a supported length</li>
    354. 

  354. </ul>
    355. 

  355. </dd></dl>
    356. 

  356. </dd>
    357. 

  357. </dl>
    358. 

  358. </div></div><!-- contents -->
    359. 

  359. </div><!-- doc-content -->
    360. 

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  363.     <li class="footer">Generated on Thu Apr 9 2020 15:49:23 for CMSIS-DSP Version 1.8.0 by Arm Ltd. All rights reserved.
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