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PX4-Autopilot/CMSIS/Documentation/DSP/html/structarm__rfft__instance__f32.html
jgoppert 1579630efe Added CMSIS library.
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<p>Instance structure for the floating-point RFFT/RIFFT function.
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Data Fields</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a4219d4669699e4efdcb150ed7a0d9a57">fftLenReal</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a075076e07ebb8521d8e3b49a31db6c57">fftLenBy2</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a5ee6d10a934ab4b666e0bb286c3d633f">ifftFlagR</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#ac342f3248157cbbd2f04a3c8ec9fc9eb">bitReverseFlagR</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#aede85350fb5ae6baa1b3e8bfa15b18d6">twidCoefRModifier</a></td></tr>
<tr><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__rfft__instance__f32.html#a534cc7e6e9b3e3dd022fad611c762142">pTwiddleAReal</a></td></tr>
<tr><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__rfft__instance__f32.html#a23543ecfd027fea2477fe1eea23c3c4d">pTwiddleBReal</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__f32.html#a9f47ba9f50c81e4445ae3827b981bc05">pCfft</a></td></tr>
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<hr/><h2>Field Documentation</h2>
<a class="anchor" id="ac342f3248157cbbd2f04a3c8ec9fc9eb"></a><!-- doxytag: member="arm_rfft_instance_f32::bitReverseFlagR" ref="ac342f3248157cbbd2f04a3c8ec9fc9eb" args="" -->
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<td class="memname">uint8_t <a class="el" href="structarm__rfft__instance__f32.html#ac342f3248157cbbd2f04a3c8ec9fc9eb">arm_rfft_instance_f32::bitReverseFlagR</a></td>
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<p>flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. </p>
<p>Referenced by <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p>
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<a class="anchor" id="a075076e07ebb8521d8e3b49a31db6c57"></a><!-- doxytag: member="arm_rfft_instance_f32::fftLenBy2" ref="a075076e07ebb8521d8e3b49a31db6c57" args="" -->
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<td class="memname">uint16_t <a class="el" href="structarm__rfft__instance__f32.html#a075076e07ebb8521d8e3b49a31db6c57">arm_rfft_instance_f32::fftLenBy2</a></td>
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<p>length of the complex FFT. </p>
<p>Referenced by <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p>
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<a class="anchor" id="a4219d4669699e4efdcb150ed7a0d9a57"></a><!-- doxytag: member="arm_rfft_instance_f32::fftLenReal" ref="a4219d4669699e4efdcb150ed7a0d9a57" args="" -->
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<td class="memname">uint32_t <a class="el" href="structarm__rfft__instance__f32.html#a4219d4669699e4efdcb150ed7a0d9a57">arm_rfft_instance_f32::fftLenReal</a></td>
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<p>length of the real FFT. </p>
<p>Referenced by <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p>
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<a class="anchor" id="a5ee6d10a934ab4b666e0bb286c3d633f"></a><!-- doxytag: member="arm_rfft_instance_f32::ifftFlagR" ref="a5ee6d10a934ab4b666e0bb286c3d633f" args="" -->
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<td class="memname">uint8_t <a class="el" href="structarm__rfft__instance__f32.html#a5ee6d10a934ab4b666e0bb286c3d633f">arm_rfft_instance_f32::ifftFlagR</a></td>
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<p>flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. </p>
<p>Referenced by <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p>
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<a class="anchor" id="a9f47ba9f50c81e4445ae3827b981bc05"></a><!-- doxytag: member="arm_rfft_instance_f32::pCfft" ref="a9f47ba9f50c81e4445ae3827b981bc05" args="" -->
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<td class="memname"><a class="el" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a>* <a class="el" href="structarm__rfft__instance__f32.html#a9f47ba9f50c81e4445ae3827b981bc05">arm_rfft_instance_f32::pCfft</a></td>
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<p>points to the complex FFT instance. </p>
<p>Referenced by <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p>
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<a class="anchor" id="a534cc7e6e9b3e3dd022fad611c762142"></a><!-- doxytag: member="arm_rfft_instance_f32::pTwiddleAReal" ref="a534cc7e6e9b3e3dd022fad611c762142" args="" -->
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* <a class="el" href="structarm__rfft__instance__f32.html#a534cc7e6e9b3e3dd022fad611c762142">arm_rfft_instance_f32::pTwiddleAReal</a></td>
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<p>points to the real twiddle factor table. </p>
<p>Referenced by <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p>
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<a class="anchor" id="a23543ecfd027fea2477fe1eea23c3c4d"></a><!-- doxytag: member="arm_rfft_instance_f32::pTwiddleBReal" ref="a23543ecfd027fea2477fe1eea23c3c4d" args="" -->
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* <a class="el" href="structarm__rfft__instance__f32.html#a23543ecfd027fea2477fe1eea23c3c4d">arm_rfft_instance_f32::pTwiddleBReal</a></td>
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<p>points to the imag twiddle factor table. </p>
<p>Referenced by <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p>
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<a class="anchor" id="aede85350fb5ae6baa1b3e8bfa15b18d6"></a><!-- doxytag: member="arm_rfft_instance_f32::twidCoefRModifier" ref="aede85350fb5ae6baa1b3e8bfa15b18d6" args="" -->
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<td class="memname">uint32_t <a class="el" href="structarm__rfft__instance__f32.html#aede85350fb5ae6baa1b3e8bfa15b18d6">arm_rfft_instance_f32::twidCoefRModifier</a></td>
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<p>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </p>
<p>Referenced by <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>, and <a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32()</a>.</p>
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