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295 lines
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<p>Instance structure for the floating-point RFFT/RIFFT function.
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
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Data Fields</h2></td></tr>
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<tr class="memitem:adf0d4604cf5546075d9d4cf122d6c986"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#adf0d4604cf5546075d9d4cf122d6c986">fftLenReal</a></td></tr>
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<tr class="separator:adf0d4604cf5546075d9d4cf122d6c986"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a206b7cd92c35fde3432e5b9a0650c42c"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a206b7cd92c35fde3432e5b9a0650c42c">fftLenBy2</a></td></tr>
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<tr class="separator:a206b7cd92c35fde3432e5b9a0650c42c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a787d72055c89e4d62b188d6bd646341c"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a787d72055c89e4d62b188d6bd646341c">ifftFlagR</a></td></tr>
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<tr class="separator:a787d72055c89e4d62b188d6bd646341c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad56ec2425e2422108b8767b43d944591"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#ad56ec2425e2422108b8767b43d944591">bitReverseFlagR</a></td></tr>
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<tr class="separator:ad56ec2425e2422108b8767b43d944591"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5b06f7f76c018db993fe6acc5708c589"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a5b06f7f76c018db993fe6acc5708c589">twidCoefRModifier</a></td></tr>
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<tr class="separator:a5b06f7f76c018db993fe6acc5708c589"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a9242c2e59819701cb99429b0dc9f3796"><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__rfft__instance__f32.html#a9242c2e59819701cb99429b0dc9f3796">pTwiddleAReal</a></td></tr>
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<tr class="separator:a9242c2e59819701cb99429b0dc9f3796"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5cebe2c6994199d1c89a87105f8b4351"><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__rfft__instance__f32.html#a5cebe2c6994199d1c89a87105f8b4351">pTwiddleBReal</a></td></tr>
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<tr class="separator:a5cebe2c6994199d1c89a87105f8b4351"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab7bd4d374a1780dea50efd3e7ac220be"><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#ab7bd4d374a1780dea50efd3e7ac220be">pCfft</a></td></tr>
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<h2 class="groupheader">Field Documentation</h2>
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<a id="ad56ec2425e2422108b8767b43d944591" name="ad56ec2425e2422108b8767b43d944591"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ad56ec2425e2422108b8767b43d944591">◆ </a></span>bitReverseFlagR</h2>
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<td class="memname">uint8_t bitReverseFlagR</td>
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<p >flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. </p>
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<a id="a206b7cd92c35fde3432e5b9a0650c42c" name="a206b7cd92c35fde3432e5b9a0650c42c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a206b7cd92c35fde3432e5b9a0650c42c">◆ </a></span>fftLenBy2</h2>
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<td class="memname">uint16_t fftLenBy2</td>
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<p >length of the complex FFT. </p>
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<a id="adf0d4604cf5546075d9d4cf122d6c986" name="adf0d4604cf5546075d9d4cf122d6c986"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#adf0d4604cf5546075d9d4cf122d6c986">◆ </a></span>fftLenReal</h2>
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<td class="memname">uint32_t fftLenReal</td>
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<p >length of the real FFT. </p>
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<a id="a787d72055c89e4d62b188d6bd646341c" name="a787d72055c89e4d62b188d6bd646341c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a787d72055c89e4d62b188d6bd646341c">◆ </a></span>ifftFlagR</h2>
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<td class="memname">uint8_t ifftFlagR</td>
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<p >flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. </p>
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<a id="ab7bd4d374a1780dea50efd3e7ac220be" name="ab7bd4d374a1780dea50efd3e7ac220be"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ab7bd4d374a1780dea50efd3e7ac220be">◆ </a></span>pCfft</h2>
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<td class="memname"><a class="el" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a>* pCfft</td>
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<p >points to the complex FFT instance. </p>
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<a id="a9242c2e59819701cb99429b0dc9f3796" name="a9242c2e59819701cb99429b0dc9f3796"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a9242c2e59819701cb99429b0dc9f3796">◆ </a></span>pTwiddleAReal</h2>
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<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* pTwiddleAReal</td>
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</div><div class="memdoc">
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<p >points to the real twiddle factor table. </p>
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<a id="a5cebe2c6994199d1c89a87105f8b4351" name="a5cebe2c6994199d1c89a87105f8b4351"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a5cebe2c6994199d1c89a87105f8b4351">◆ </a></span>pTwiddleBReal</h2>
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<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* pTwiddleBReal</td>
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</div><div class="memdoc">
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<p >points to the imag twiddle factor table. </p>
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<a id="a5b06f7f76c018db993fe6acc5708c589" name="a5b06f7f76c018db993fe6acc5708c589"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a5b06f7f76c018db993fe6acc5708c589">◆ </a></span>twidCoefRModifier</h2>
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<td class="memname">uint32_t twidCoefRModifier</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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