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| <p>Instance structure for the floating-point CFFT/CIFFT 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:ab8db3bbe7c61e6bb8ca2a55e3446e11a"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__f32.html#ab8db3bbe7c61e6bb8ca2a55e3446e11a">fftLen</a></td></tr> |
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| <tr class="memitem:ad6ca6e223f986ebfd94c5ee1e410aa73"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__f32.html#ad6ca6e223f986ebfd94c5ee1e410aa73">ifftFlag</a></td></tr> |
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| <tr class="memitem:a09a221a818c6d0e064557a99e2fe9a8b"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__f32.html#a09a221a818c6d0e064557a99e2fe9a8b">bitReverseFlag</a></td></tr> |
| <tr class="separator:a09a221a818c6d0e064557a99e2fe9a8b"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a8292d9775f5c5472f59915649fe3b378"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__f32.html#a8292d9775f5c5472f59915649fe3b378">pTwiddle</a></td></tr> |
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| <tr class="memitem:a3b229432d381b0a511a9cdbe3aa74e78"><td class="memItemLeft" align="right" valign="top">const uint16_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__f32.html#a3b229432d381b0a511a9cdbe3aa74e78">pBitRevTable</a></td></tr> |
| <tr class="separator:a3b229432d381b0a511a9cdbe3aa74e78"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:afe772e5b5001c9d8e85032115a8df5bf"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__f32.html#afe772e5b5001c9d8e85032115a8df5bf">twidCoefModifier</a></td></tr> |
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| <tr class="memitem:a33386d95319dc3ee7097b3a8e52e01ec"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__f32.html#a33386d95319dc3ee7097b3a8e52e01ec">bitRevFactor</a></td></tr> |
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| <tr class="memitem:acf295a7b97b7d48a9cae4d1ab5ed00f6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__f32.html#acf295a7b97b7d48a9cae4d1ab5ed00f6">onebyfftLen</a></td></tr> |
| <tr class="separator:acf295a7b97b7d48a9cae4d1ab5ed00f6"><td class="memSeparator" colspan="2"> </td></tr> |
| </table> |
| <h2 class="groupheader">Field Documentation</h2> |
| <a class="anchor" id="a09a221a818c6d0e064557a99e2fe9a8b"></a> |
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| <td class="memname">uint8_t bitReverseFlag</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <p>flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. </p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="a33386d95319dc3ee7097b3a8e52e01ec"></a> |
| <div class="memitem"> |
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| <table class="memname"> |
| <tr> |
| <td class="memname">uint16_t bitRevFactor</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <p>bit reversal modifier that supports different size FFTs with the same bit reversal table. </p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="ab8db3bbe7c61e6bb8ca2a55e3446e11a"></a> |
| <div class="memitem"> |
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| <tr> |
| <td class="memname">uint16_t fftLen</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <p>length of the FFT. </p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="ad6ca6e223f986ebfd94c5ee1e410aa73"></a> |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">uint8_t ifftFlag</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <p>flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. </p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="acf295a7b97b7d48a9cae4d1ab5ed00f6"></a> |
| <div class="memitem"> |
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| <tr> |
| <td class="memname"><a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> onebyfftLen</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <p>value of 1/fftLen. </p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="a3b229432d381b0a511a9cdbe3aa74e78"></a> |
| <div class="memitem"> |
| <div class="memproto"> |
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| <tr> |
| <td class="memname">const uint16_t* pBitRevTable</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <p>points to the bit reversal table. </p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="a8292d9775f5c5472f59915649fe3b378"></a> |
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| <td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* pTwiddle</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <p>points to the Twiddle factor table. </p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="afe772e5b5001c9d8e85032115a8df5bf"></a> |
| <div class="memitem"> |
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| <td class="memname">uint16_t twidCoefModifier</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <p>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </p> |
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