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<div class="title">arm_cfft_radix2_instance_q15 Struct Reference</div> </div>
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<p>Instance structure for the Q15 CFFT/CIFFT function.
</p>
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Data Fields</h2></td></tr>
<tr class="memitem:a874085647351dcf3f0de39d2b1d49744"><td class="memItemLeft" align="right" valign="top">uint16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__q15.html#a874085647351dcf3f0de39d2b1d49744">fftLen</a></td></tr>
<tr class="separator:a874085647351dcf3f0de39d2b1d49744"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab5c073286bdd2f6e2bf783ced36bf1de"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__q15.html#ab5c073286bdd2f6e2bf783ced36bf1de">ifftFlag</a></td></tr>
<tr class="separator:ab5c073286bdd2f6e2bf783ced36bf1de"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af8300c1f60caa21e6b44b9240ab5af19"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__q15.html#af8300c1f60caa21e6b44b9240ab5af19">bitReverseFlag</a></td></tr>
<tr class="separator:af8300c1f60caa21e6b44b9240ab5af19"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a68eaf57e58bbc42f7e1dfa8de8145647"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__q15.html#a68eaf57e58bbc42f7e1dfa8de8145647">pTwiddle</a></td></tr>
<tr class="separator:a68eaf57e58bbc42f7e1dfa8de8145647"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1bfc91c423e8a1fa6b71f9091df54f39"><td class="memItemLeft" align="right" valign="top">const uint16_t *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__q15.html#a1bfc91c423e8a1fa6b71f9091df54f39">pBitRevTable</a></td></tr>
<tr class="separator:a1bfc91c423e8a1fa6b71f9091df54f39"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6f2ab87fb4c568656e1f92f687b5c850"><td class="memItemLeft" align="right" valign="top">uint16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__q15.html#a6f2ab87fb4c568656e1f92f687b5c850">twidCoefModifier</a></td></tr>
<tr class="separator:a6f2ab87fb4c568656e1f92f687b5c850"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8722720c542cabd41df83fe88ef4f4cb"><td class="memItemLeft" align="right" valign="top">uint16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__cfft__radix2__instance__q15.html#a8722720c542cabd41df83fe88ef4f4cb">bitRevFactor</a></td></tr>
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<h2 class="groupheader">Field Documentation</h2>
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<td class="memname">uint8_t arm_cfft_radix2_instance_q15::bitReverseFlag</td>
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<p>flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. </p>
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<td class="memname">uint16_t arm_cfft_radix2_instance_q15::bitRevFactor</td>
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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_radix2_instance_q15::fftLen</td>
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<p>length of the FFT. </p>
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<td class="memname">uint8_t arm_cfft_radix2_instance_q15::ifftFlag</td>
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<p>flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. </p>
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<td class="memname">const uint16_t* arm_cfft_radix2_instance_q15::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#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a>* arm_cfft_radix2_instance_q15::pTwiddle</td>
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<p>points to the Sin twiddle factor table. </p>
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<td class="memname">uint16_t arm_cfft_radix2_instance_q15::twidCoefModifier</td>
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<p>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </p>
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