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<p>Instance structure for the floating-point CFFT/CIFFT function.  
 <a href="structarm__cfft__radix4__instance__f32.html#details">More...</a></p>
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Data Fields</h2></td></tr>
<tr class="memitem:a7e6a6d290ce158ce9a15a45e364b021a"><td class="memItemLeft" align="right" valign="top">uint16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix4__instance__f32.html#a7e6a6d290ce158ce9a15a45e364b021a">fftLen</a></td></tr>
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<tr class="memitem:a25d1da64dd6487c291f04d226f9acc66"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix4__instance__f32.html#a25d1da64dd6487c291f04d226f9acc66">ifftFlag</a></td></tr>
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<tr class="memitem:ac10927a1620195a88649ce63dab66120"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix4__instance__f32.html#ac10927a1620195a88649ce63dab66120">bitReverseFlag</a></td></tr>
<tr class="separator:ac10927a1620195a88649ce63dab66120"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac1455c9894e7fc53c41f3806b13bd274"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix4__instance__f32.html#ac1455c9894e7fc53c41f3806b13bd274">pTwiddle</a></td></tr>
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<tr class="memitem:ab6e84ac830b6d413768dcafe271514a1"><td class="memItemLeft" align="right" valign="top">const uint16_t *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix4__instance__f32.html#ab6e84ac830b6d413768dcafe271514a1">pBitRevTable</a></td></tr>
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<tr class="memitem:abe31ea2157dfa233e389cdfd3b9993ee"><td class="memItemLeft" align="right" valign="top">uint16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix4__instance__f32.html#abe31ea2157dfa233e389cdfd3b9993ee">twidCoefModifier</a></td></tr>
<tr class="separator:abe31ea2157dfa233e389cdfd3b9993ee"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acc8cb18a8b901b8321ab9d86491e41a3"><td class="memItemLeft" align="right" valign="top">uint16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix4__instance__f32.html#acc8cb18a8b901b8321ab9d86491e41a3">bitRevFactor</a></td></tr>
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<tr class="memitem:ab9eed39e40b8d7c16381fbccf84467cd"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix4__instance__f32.html#ab9eed39e40b8d7c16381fbccf84467cd">onebyfftLen</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<div class="textblock"><dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_convolution_example_f32_8c-example.html#_a13">arm_convolution_example_f32.c</a>.</dd>
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<p>flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. </p>

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<p>bit reversal modifier that supports different size FFTs with the same bit reversal table. </p>

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          <td class="memname">uint16_t arm_cfft_radix4_instance_f32::fftLen</td>
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<p>length of the FFT. </p>

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<p>flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. </p>

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          <td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> arm_cfft_radix4_instance_f32::onebyfftLen</td>
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<p>value of 1/fftLen. </p>

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          <td class="memname">const uint16_t* arm_cfft_radix4_instance_f32::pBitRevTable</td>
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<p>points to the bit reversal table. </p>

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          <td class="memname">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* arm_cfft_radix4_instance_f32::pTwiddle</td>
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<p>points to the Twiddle factor table. </p>

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<p>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </p>

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