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class="summary"> +<a href="#pub-attribs">Data Fields</a> </div> + <div class="headertitle"> +<div class="title">arm_rfft_instance_f32 Struct Reference</div> </div> +</div><!--header--> +<div class="contents"> + +<p>Instance structure for the floating-point RFFT/RIFFT function. +</p> +<table class="memberdecls"> +<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a> +Data Fields</h2></td></tr> +<tr class="memitem:a4219d4669699e4efdcb150ed7a0d9a57"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a4219d4669699e4efdcb150ed7a0d9a57">fftLenReal</a></td></tr> +<tr class="separator:a4219d4669699e4efdcb150ed7a0d9a57"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a075076e07ebb8521d8e3b49a31db6c57"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a075076e07ebb8521d8e3b49a31db6c57">fftLenBy2</a></td></tr> +<tr class="separator:a075076e07ebb8521d8e3b49a31db6c57"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a5ee6d10a934ab4b666e0bb286c3d633f"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a5ee6d10a934ab4b666e0bb286c3d633f">ifftFlagR</a></td></tr> +<tr class="separator:a5ee6d10a934ab4b666e0bb286c3d633f"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ac342f3248157cbbd2f04a3c8ec9fc9eb"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#ac342f3248157cbbd2f04a3c8ec9fc9eb">bitReverseFlagR</a></td></tr> +<tr class="separator:ac342f3248157cbbd2f04a3c8ec9fc9eb"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:aede85350fb5ae6baa1b3e8bfa15b18d6"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#aede85350fb5ae6baa1b3e8bfa15b18d6">twidCoefRModifier</a></td></tr> +<tr class="separator:aede85350fb5ae6baa1b3e8bfa15b18d6"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a534cc7e6e9b3e3dd022fad611c762142"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a534cc7e6e9b3e3dd022fad611c762142">pTwiddleAReal</a></td></tr> +<tr class="separator:a534cc7e6e9b3e3dd022fad611c762142"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a23543ecfd027fea2477fe1eea23c3c4d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a23543ecfd027fea2477fe1eea23c3c4d">pTwiddleBReal</a></td></tr> +<tr class="separator:a23543ecfd027fea2477fe1eea23c3c4d"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a9f47ba9f50c81e4445ae3827b981bc05"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a9f47ba9f50c81e4445ae3827b981bc05">pCfft</a></td></tr> +<tr class="separator:a9f47ba9f50c81e4445ae3827b981bc05"><td class="memSeparator" colspan="2"> </td></tr> +</table> +<h2 class="groupheader">Field Documentation</h2> +<a class="anchor" id="ac342f3248157cbbd2f04a3c8ec9fc9eb"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint8_t arm_rfft_instance_f32::bitReverseFlagR</td> + </tr> + </table> +</div><div class="memdoc"> +<p>flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. </p> + +<p>Referenced by <a class="el" href="group___real_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___real_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p> + +</div> +</div> +<a class="anchor" id="a075076e07ebb8521d8e3b49a31db6c57"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint16_t arm_rfft_instance_f32::fftLenBy2</td> + </tr> + </table> +</div><div class="memdoc"> +<p>length of the complex FFT. </p> + +<p>Referenced by <a class="el" href="group___real_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___real_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p> + +</div> +</div> +<a class="anchor" id="a4219d4669699e4efdcb150ed7a0d9a57"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint32_t arm_rfft_instance_f32::fftLenReal</td> + </tr> + </table> +</div><div class="memdoc"> +<p>length of the real FFT. </p> + +<p>Referenced by <a class="el" href="group___real_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p> + +</div> +</div> +<a class="anchor" id="a5ee6d10a934ab4b666e0bb286c3d633f"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint8_t arm_rfft_instance_f32::ifftFlagR</td> + </tr> + </table> +</div><div class="memdoc"> +<p>flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. </p> + +<p>Referenced by <a class="el" href="group___real_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___real_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p> + +</div> +</div> +<a class="anchor" id="a9f47ba9f50c81e4445ae3827b981bc05"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a>* arm_rfft_instance_f32::pCfft</td> + </tr> + </table> +</div><div class="memdoc"> +<p>points to the complex FFT instance. </p> + +<p>Referenced by <a class="el" href="group___real_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___real_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p> + +</div> +</div> +<a class="anchor" id="a534cc7e6e9b3e3dd022fad611c762142"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* arm_rfft_instance_f32::pTwiddleAReal</td> + </tr> + </table> +</div><div class="memdoc"> +<p>points to the real twiddle factor table. </p> + +<p>Referenced by <a class="el" href="group___real_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___real_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p> + +</div> +</div> +<a class="anchor" id="a23543ecfd027fea2477fe1eea23c3c4d"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* arm_rfft_instance_f32::pTwiddleBReal</td> + </tr> + </table> +</div><div class="memdoc"> +<p>points to the imag twiddle factor table. </p> + +<p>Referenced by <a class="el" href="group___real_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___real_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p> + +</div> +</div> +<a class="anchor" id="aede85350fb5ae6baa1b3e8bfa15b18d6"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint32_t arm_rfft_instance_f32::twidCoefRModifier</td> + </tr> + </table> +</div><div class="memdoc"> +<p>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </p> + +<p>Referenced by <a class="el" href="group___real_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___real_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p> + +</div> +</div> +</div><!-- contents --> +</div><!-- doc-content --> +<!-- start footer part --> +<div id="nav-path" class="navpath"><!-- id is needed for treeview function! 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