diff options
Diffstat (limited to 'fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example')
4 files changed, 0 insertions, 896 deletions
diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/arm_fir_data.c b/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/arm_fir_data.c deleted file mode 100644 index 3a95fc5..0000000 --- a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/arm_fir_data.c +++ /dev/null @@ -1,134 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
-*
-* $Date: 17. January 2013
-* $Revision: V1.4.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_fir_data.c
-*
-* Description: Data file used for example code
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions
-* are met:
-* - Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* - Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in
-* the documentation and/or other materials provided with the
-* distribution.
-* - Neither the name of ARM LIMITED nor the names of its contributors
-* may be used to endorse or promote products derived from this
-* software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
- * -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/* ----------------------------------------------------------------------
-** Test input signal contains 1000Hz + 15000 Hz
-** ------------------------------------------------------------------- */
-
-float32_t testInput_f32_1kHz_15kHz[320] =
-{
-+0.0000000000f, +0.5924659585f, -0.0947343455f, +0.1913417162f, +1.0000000000f, +0.4174197128f, +0.3535533906f, +1.2552931065f,
-+0.8660254038f, +0.4619397663f, +1.3194792169f, +1.1827865776f, +0.5000000000f, +1.1827865776f, +1.3194792169f, +0.4619397663f,
-+0.8660254038f, +1.2552931065f, +0.3535533906f, +0.4174197128f, +1.0000000000f, +0.1913417162f, -0.0947343455f, +0.5924659585f,
--0.0000000000f, -0.5924659585f, +0.0947343455f, -0.1913417162f, -1.0000000000f, -0.4174197128f, -0.3535533906f, -1.2552931065f,
--0.8660254038f, -0.4619397663f, -1.3194792169f, -1.1827865776f, -0.5000000000f, -1.1827865776f, -1.3194792169f, -0.4619397663f,
--0.8660254038f, -1.2552931065f, -0.3535533906f, -0.4174197128f, -1.0000000000f, -0.1913417162f, +0.0947343455f, -0.5924659585f,
-+0.0000000000f, +0.5924659585f, -0.0947343455f, +0.1913417162f, +1.0000000000f, +0.4174197128f, +0.3535533906f, +1.2552931065f,
-+0.8660254038f, +0.4619397663f, +1.3194792169f, +1.1827865776f, +0.5000000000f, +1.1827865776f, +1.3194792169f, +0.4619397663f,
-+0.8660254038f, +1.2552931065f, +0.3535533906f, +0.4174197128f, +1.0000000000f, +0.1913417162f, -0.0947343455f, +0.5924659585f,
-+0.0000000000f, -0.5924659585f, +0.0947343455f, -0.1913417162f, -1.0000000000f, -0.4174197128f, -0.3535533906f, -1.2552931065f,
--0.8660254038f, -0.4619397663f, -1.3194792169f, -1.1827865776f, -0.5000000000f, -1.1827865776f, -1.3194792169f, -0.4619397663f,
--0.8660254038f, -1.2552931065f, -0.3535533906f, -0.4174197128f, -1.0000000000f, -0.1913417162f, +0.0947343455f, -0.5924659585f,
-+0.0000000000f, +0.5924659585f, -0.0947343455f, +0.1913417162f, +1.0000000000f, +0.4174197128f, +0.3535533906f, +1.2552931065f,
-+0.8660254038f, +0.4619397663f, +1.3194792169f, +1.1827865776f, +0.5000000000f, +1.1827865776f, +1.3194792169f, +0.4619397663f,
-+0.8660254038f, +1.2552931065f, +0.3535533906f, +0.4174197128f, +1.0000000000f, +0.1913417162f, -0.0947343455f, +0.5924659585f,
-+0.0000000000f, -0.5924659585f, +0.0947343455f, -0.1913417162f, -1.0000000000f, -0.4174197128f, -0.3535533906f, -1.2552931065f,
--0.8660254038f, -0.4619397663f, -1.3194792169f, -1.1827865776f, -0.5000000000f, -1.1827865776f, -1.3194792169f, -0.4619397663f,
--0.8660254038f, -1.2552931065f, -0.3535533906f, -0.4174197128f, -1.0000000000f, -0.1913417162f, +0.0947343455f, -0.5924659585f,
--0.0000000000f, +0.5924659585f, -0.0947343455f, +0.1913417162f, +1.0000000000f, +0.4174197128f, +0.3535533906f, +1.2552931065f,
-+0.8660254038f, +0.4619397663f, +1.3194792169f, +1.1827865776f, +0.5000000000f, +1.1827865776f, +1.3194792169f, +0.4619397663f,
-+0.8660254038f, +1.2552931065f, +0.3535533906f, +0.4174197128f, +1.0000000000f, +0.1913417162f, -0.0947343455f, +0.5924659585f,
--0.0000000000f, -0.5924659585f, +0.0947343455f, -0.1913417162f, -1.0000000000f, -0.4174197128f, -0.3535533906f, -1.2552931065f,
--0.8660254038f, -0.4619397663f, -1.3194792169f, -1.1827865776f, -0.5000000000f, -1.1827865776f, -1.3194792169f, -0.4619397663f,
--0.8660254038f, -1.2552931065f, -0.3535533906f, -0.4174197128f, -1.0000000000f, -0.1913417162f, +0.0947343455f, -0.5924659585f,
-+0.0000000000f, +0.5924659585f, -0.0947343455f, +0.1913417162f, +1.0000000000f, +0.4174197128f, +0.3535533906f, +1.2552931065f,
-+0.8660254038f, +0.4619397663f, +1.3194792169f, +1.1827865776f, +0.5000000000f, +1.1827865776f, +1.3194792169f, +0.4619397663f,
-+0.8660254038f, +1.2552931065f, +0.3535533906f, +0.4174197128f, +1.0000000000f, +0.1913417162f, -0.0947343455f, +0.5924659585f,
-+0.0000000000f, -0.5924659585f, +0.0947343455f, -0.1913417162f, -1.0000000000f, -0.4174197128f, -0.3535533906f, -1.2552931065f,
--0.8660254038f, -0.4619397663f, -1.3194792169f, -1.1827865776f, -0.5000000000f, -1.1827865776f, -1.3194792169f, -0.4619397663f,
--0.8660254038f, -1.2552931065f, -0.3535533906f, -0.4174197128f, -1.0000000000f, -0.1913417162f, +0.0947343455f, -0.5924659585f,
--0.0000000000f, +0.5924659585f, -0.0947343455f, +0.1913417162f, +1.0000000000f, +0.4174197128f, +0.3535533906f, +1.2552931065f,
-+0.8660254038f, +0.4619397663f, +1.3194792169f, +1.1827865776f, +0.5000000000f, +1.1827865776f, +1.3194792169f, +0.4619397663f,
-+0.8660254038f, +1.2552931065f, +0.3535533906f, +0.4174197128f, +1.0000000000f, +0.1913417162f, -0.0947343455f, +0.5924659585f,
-+0.0000000000f, -0.5924659585f, +0.0947343455f, -0.1913417162f, -1.0000000000f, -0.4174197128f, -0.3535533906f, -1.2552931065f,
--0.8660254038f, -0.4619397663f, -1.3194792169f, -1.1827865776f, -0.5000000000f, -1.1827865776f, -1.3194792169f, -0.4619397663f,
--0.8660254038f, -1.2552931065f, -0.3535533906f, -0.4174197128f, -1.0000000000f, -0.1913417162f, +0.0947343455f, -0.5924659585f,
--0.0000000000f, +0.5924659585f, -0.0947343455f, +0.1913417162f, +1.0000000000f, +0.4174197128f, +0.3535533906f, +1.2552931065f,
-+0.8660254038f, +0.4619397663f, +1.3194792169f, +1.1827865776f, +0.5000000000f, +1.1827865776f, +1.3194792169f, +0.4619397663f,
-+0.8660254038f, +1.2552931065f, +0.3535533906f, +0.4174197128f, +1.0000000000f, +0.1913417162f, -0.0947343455f, +0.5924659585f,
-+0.0000000000f, -0.5924659585f, +0.0947343455f, -0.1913417162f, -1.0000000000f, -0.4174197128f, -0.3535533906f, -1.2552931065f,
-};
-
-float32_t refOutput[320] =
-{
-+0.0000000000f, -0.0010797829f, -0.0007681386f, -0.0001982932f, +0.0000644313f, +0.0020854271f, +0.0036891871f, +0.0015855941f,
--0.0026280805f, -0.0075907658f, -0.0119390538f, -0.0086665968f, +0.0088981202f, +0.0430539279f, +0.0974468742f, +0.1740405600f,
-+0.2681416601f, +0.3747720089f, +0.4893362230f, +0.6024154672f, +0.7058740791f, +0.7968348987f, +0.8715901940f, +0.9277881093f,
-+0.9682182661f, +0.9934674267f, +1.0012052245f, +0.9925859371f, +0.9681538347f, +0.9257026822f, +0.8679010068f, +0.7952493046f,
-+0.7085021596f, +0.6100062330f, +0.5012752767f, +0.3834386057f, +0.2592435399f, +0.1309866321f, -0.0000000000f, -0.1309866321f,
--0.2592435399f, -0.3834386057f, -0.5012752767f, -0.6100062330f, -0.7085021596f, -0.7952493046f, -0.8679010068f, -0.9257026822f,
--0.9681538347f, -0.9936657199f, -1.0019733630f, -0.9936657199f, -0.9681538347f, -0.9257026822f, -0.8679010068f, -0.7952493046f,
--0.7085021596f, -0.6100062330f, -0.5012752767f, -0.3834386057f, -0.2592435399f, -0.1309866321f, +0.0000000000f, +0.1309866321f,
-+0.2592435399f, +0.3834386057f, +0.5012752767f, +0.6100062330f, +0.7085021596f, +0.7952493046f, +0.8679010068f, +0.9257026822f,
-+0.9681538347f, +0.9936657199f, +1.0019733630f, +0.9936657199f, +0.9681538347f, +0.9257026822f, +0.8679010068f, +0.7952493046f,
-+0.7085021596f, +0.6100062330f, +0.5012752767f, +0.3834386057f, +0.2592435399f, +0.1309866321f, -0.0000000000f, -0.1309866321f,
--0.2592435399f, -0.3834386057f, -0.5012752767f, -0.6100062330f, -0.7085021596f, -0.7952493046f, -0.8679010068f, -0.9257026822f,
--0.9681538347f, -0.9936657199f, -1.0019733630f, -0.9936657199f, -0.9681538347f, -0.9257026822f, -0.8679010068f, -0.7952493046f,
--0.7085021596f, -0.6100062330f, -0.5012752767f, -0.3834386057f, -0.2592435399f, -0.1309866321f, +0.0000000000f, +0.1309866321f,
-+0.2592435399f, +0.3834386057f, +0.5012752767f, +0.6100062330f, +0.7085021596f, +0.7952493046f, +0.8679010068f, +0.9257026822f,
-+0.9681538347f, +0.9936657199f, +1.0019733630f, +0.9936657199f, +0.9681538347f, +0.9257026822f, +0.8679010068f, +0.7952493046f,
-+0.7085021596f, +0.6100062330f, +0.5012752767f, +0.3834386057f, +0.2592435399f, +0.1309866321f, -0.0000000000f, -0.1309866321f,
--0.2592435399f, -0.3834386057f, -0.5012752767f, -0.6100062330f, -0.7085021596f, -0.7952493046f, -0.8679010068f, -0.9257026822f,
--0.9681538347f, -0.9936657199f, -1.0019733630f, -0.9936657199f, -0.9681538347f, -0.9257026822f, -0.8679010068f, -0.7952493046f,
--0.7085021596f, -0.6100062330f, -0.5012752767f, -0.3834386057f, -0.2592435399f, -0.1309866321f, +0.0000000000f, +0.1309866321f,
-+0.2592435399f, +0.3834386057f, +0.5012752767f, +0.6100062330f, +0.7085021596f, +0.7952493046f, +0.8679010068f, +0.9257026822f,
-+0.9681538347f, +0.9936657199f, +1.0019733630f, +0.9936657199f, +0.9681538347f, +0.9257026822f, +0.8679010068f, +0.7952493046f,
-+0.7085021596f, +0.6100062330f, +0.5012752767f, +0.3834386057f, +0.2592435399f, +0.1309866321f, +0.0000000000f, -0.1309866321f,
--0.2592435399f, -0.3834386057f, -0.5012752767f, -0.6100062330f, -0.7085021596f, -0.7952493046f, -0.8679010068f, -0.9257026822f,
--0.9681538347f, -0.9936657199f, -1.0019733630f, -0.9936657199f, -0.9681538347f, -0.9257026822f, -0.8679010068f, -0.7952493046f,
--0.7085021596f, -0.6100062330f, -0.5012752767f, -0.3834386057f, -0.2592435399f, -0.1309866321f, +0.0000000000f, +0.1309866321f,
-+0.2592435399f, +0.3834386057f, +0.5012752767f, +0.6100062330f, +0.7085021596f, +0.7952493046f, +0.8679010068f, +0.9257026822f,
-+0.9681538347f, +0.9936657199f, +1.0019733630f, +0.9936657199f, +0.9681538347f, +0.9257026822f, +0.8679010068f, +0.7952493046f,
-+0.7085021596f, +0.6100062330f, +0.5012752767f, +0.3834386057f, +0.2592435399f, +0.1309866321f, +0.0000000000f, -0.1309866321f,
--0.2592435399f, -0.3834386057f, -0.5012752767f, -0.6100062330f, -0.7085021596f, -0.7952493046f, -0.8679010068f, -0.9257026822f,
--0.9681538347f, -0.9936657199f, -1.0019733630f, -0.9936657199f, -0.9681538347f, -0.9257026822f, -0.8679010068f, -0.7952493046f,
--0.7085021596f, -0.6100062330f, -0.5012752767f, -0.3834386057f, -0.2592435399f, -0.1309866321f, -0.0000000000f, +0.1309866321f,
-+0.2592435399f, +0.3834386057f, +0.5012752767f, +0.6100062330f, +0.7085021596f, +0.7952493046f, +0.8679010068f, +0.9257026822f,
-+0.9681538347f, +0.9936657199f, +1.0019733630f, +0.9936657199f, +0.9681538347f, +0.9257026822f, +0.8679010068f, +0.7952493046f,
-+0.7085021596f, +0.6100062330f, +0.5012752767f, +0.3834386057f, +0.2592435399f, +0.1309866321f, +0.0000000000f, -0.1309866321f,
--0.2592435399f, -0.3834386057f, -0.5012752767f, -0.6100062330f, -0.7085021596f, -0.7952493046f, -0.8679010068f, -0.9257026822f,
--0.9681538347f, -0.9936657199f, -1.0019733630f, -0.9936657199f, -0.9681538347f, -0.9257026822f, -0.8679010068f, -0.7952493046f,
--0.7085021596f, -0.6100062330f, -0.5012752767f, -0.3834386057f, -0.2592435399f, -0.1309866321f, +0.0000000000f, +0.1309866321f,
-+0.2592435399f, +0.3834386057f, +0.5012752767f, +0.6100062330f, +0.7085021596f, +0.7952493046f, +0.8679010068f, +0.9257026822f,
-+0.9681538347f, +0.9936657199f, +1.0019733630f, +0.9936657199f, +0.9681538347f, +0.9257026822f, +0.8679010068f, +0.7952493046f
-};
-
diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/arm_fir_example_f32.c b/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/arm_fir_example_f32.c deleted file mode 100644 index 3dd9f5a..0000000 --- a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/arm_fir_example_f32.c +++ /dev/null @@ -1,233 +0,0 @@ -/* ----------------------------------------------------------------------
- * Copyright (C) 2010-2012 ARM Limited. All rights reserved.
- *
-* $Date: 17. January 2013
-* $Revision: V1.4.0
-*
-* Project: CMSIS DSP Library
- * Title: arm_fir_example_f32.c
- *
- * Description: Example code demonstrating how an FIR filter can be used
- * as a low pass filter.
- *
- * Target Processor: Cortex-M4/Cortex-M3
- *
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions
-* are met:
-* - Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* - Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in
-* the documentation and/or other materials provided with the
-* distribution.
-* - Neither the name of ARM LIMITED nor the names of its contributors
-* may be used to endorse or promote products derived from this
-* software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
- * -------------------------------------------------------------------- */
-
-/**
- * @ingroup groupExamples
- */
-
-/**
- * @defgroup FIRLPF FIR Lowpass Filter Example
- *
- * \par Description:
- * \par
- * Removes high frequency signal components from the input using an FIR lowpass filter.
- * The example demonstrates how to configure an FIR filter and then pass data through
- * it in a block-by-block fashion.
- * \image html FIRLPF_signalflow.gif
- *
- * \par Algorithm:
- * \par
- * The input signal is a sum of two sine waves: 1 kHz and 15 kHz.
- * This is processed by an FIR lowpass filter with cutoff frequency 6 kHz.
- * The lowpass filter eliminates the 15 kHz signal leaving only the 1 kHz sine wave at the output.
- * \par
- * The lowpass filter was designed using MATLAB with a sample rate of 48 kHz and
- * a length of 29 points.
- * The MATLAB code to generate the filter coefficients is shown below:
- * <pre>
- * h = fir1(28, 6/24);
- * </pre>
- * The first argument is the "order" of the filter and is always one less than the desired length.
- * The second argument is the normalized cutoff frequency. This is in the range 0 (DC) to 1.0 (Nyquist).
- * A 6 kHz cutoff with a Nyquist frequency of 24 kHz lies at a normalized frequency of 6/24 = 0.25.
- * The CMSIS FIR filter function requires the coefficients to be in time reversed order.
- * <pre>
- * fliplr(h)
- * </pre>
- * The resulting filter coefficients and are shown below.
- * Note that the filter is symmetric (a property of linear phase FIR filters)
- * and the point of symmetry is sample 14. Thus the filter will have a delay of
- * 14 samples for all frequencies.
- * \par
- * \image html FIRLPF_coeffs.gif
- * \par
- * The frequency response of the filter is shown next.
- * The passband gain of the filter is 1.0 and it reaches 0.5 at the cutoff frequency 6 kHz.
- * \par
- * \image html FIRLPF_response.gif
- * \par
- * The input signal is shown below.
- * The left hand side shows the signal in the time domain while the right hand side is a frequency domain representation.
- * The two sine wave components can be clearly seen.
- * \par
- * \image html FIRLPF_input.gif
- * \par
- * The output of the filter is shown below. The 15 kHz component has been eliminated.
- * \par
- * \image html FIRLPF_output.gif
- *
- * \par Variables Description:
- * \par
- * \li \c testInput_f32_1kHz_15kHz points to the input data
- * \li \c refOutput points to the reference output data
- * \li \c testOutput points to the test output data
- * \li \c firStateF32 points to state buffer
- * \li \c firCoeffs32 points to coefficient buffer
- * \li \c blockSize number of samples processed at a time
- * \li \c numBlocks number of frames
- *
- * \par CMSIS DSP Software Library Functions Used:
- * \par
- * - arm_fir_init_f32()
- * - arm_fir_f32()
- *
- * <b> Refer </b>
- * \link arm_fir_example_f32.c \endlink
- *
- */
-
-
-/** \example arm_fir_example_f32.c
- */
-
-/* ----------------------------------------------------------------------
-** Include Files
-** ------------------------------------------------------------------- */
-
-#include "arm_math.h"
-#include "math_helper.h"
-
-/* ----------------------------------------------------------------------
-** Macro Defines
-** ------------------------------------------------------------------- */
-
-#define TEST_LENGTH_SAMPLES 320
-#define SNR_THRESHOLD_F32 140.0f
-#define BLOCK_SIZE 32
-#define NUM_TAPS 29
-
-/* -------------------------------------------------------------------
- * The input signal and reference output (computed with MATLAB)
- * are defined externally in arm_fir_lpf_data.c.
- * ------------------------------------------------------------------- */
-
-extern float32_t testInput_f32_1kHz_15kHz[TEST_LENGTH_SAMPLES];
-extern float32_t refOutput[TEST_LENGTH_SAMPLES];
-
-/* -------------------------------------------------------------------
- * Declare Test output buffer
- * ------------------------------------------------------------------- */
-
-static float32_t testOutput[TEST_LENGTH_SAMPLES];
-
-/* -------------------------------------------------------------------
- * Declare State buffer of size (numTaps + blockSize - 1)
- * ------------------------------------------------------------------- */
-
-static float32_t firStateF32[BLOCK_SIZE + NUM_TAPS - 1];
-
-/* ----------------------------------------------------------------------
-** FIR Coefficients buffer generated using fir1() MATLAB function.
-** fir1(28, 6/24)
-** ------------------------------------------------------------------- */
-
-const float32_t firCoeffs32[NUM_TAPS] = {
- -0.0018225230f, -0.0015879294f, +0.0000000000f, +0.0036977508f, +0.0080754303f, +0.0085302217f, -0.0000000000f, -0.0173976984f,
- -0.0341458607f, -0.0333591565f, +0.0000000000f, +0.0676308395f, +0.1522061835f, +0.2229246956f, +0.2504960933f, +0.2229246956f,
- +0.1522061835f, +0.0676308395f, +0.0000000000f, -0.0333591565f, -0.0341458607f, -0.0173976984f, -0.0000000000f, +0.0085302217f,
- +0.0080754303f, +0.0036977508f, +0.0000000000f, -0.0015879294f, -0.0018225230f
-};
-
-/* ------------------------------------------------------------------
- * Global variables for FIR LPF Example
- * ------------------------------------------------------------------- */
-
-uint32_t blockSize = BLOCK_SIZE;
-uint32_t numBlocks = TEST_LENGTH_SAMPLES/BLOCK_SIZE;
-
-float32_t snr;
-
-/* ----------------------------------------------------------------------
- * FIR LPF Example
- * ------------------------------------------------------------------- */
-
-int32_t main(void)
-{
- uint32_t i;
- arm_fir_instance_f32 S;
- arm_status status;
- float32_t *inputF32, *outputF32;
-
- /* Initialize input and output buffer pointers */
- inputF32 = &testInput_f32_1kHz_15kHz[0];
- outputF32 = &testOutput[0];
-
- /* Call FIR init function to initialize the instance structure. */
- arm_fir_init_f32(&S, NUM_TAPS, (float32_t *)&firCoeffs32[0], &firStateF32[0], blockSize);
-
- /* ----------------------------------------------------------------------
- ** Call the FIR process function for every blockSize samples
- ** ------------------------------------------------------------------- */
-
- for(i=0; i < numBlocks; i++)
- {
- arm_fir_f32(&S, inputF32 + (i * blockSize), outputF32 + (i * blockSize), blockSize);
- }
-
- /* ----------------------------------------------------------------------
- ** Compare the generated output against the reference output computed
- ** in MATLAB.
- ** ------------------------------------------------------------------- */
-
- snr = arm_snr_f32(&refOutput[0], &testOutput[0], TEST_LENGTH_SAMPLES);
-
- if (snr < SNR_THRESHOLD_F32)
- {
- status = ARM_MATH_TEST_FAILURE;
- }
- else
- {
- status = ARM_MATH_SUCCESS;
- }
-
- /* ----------------------------------------------------------------------
- ** Loop here if the signal does not match the reference output.
- ** ------------------------------------------------------------------- */
-
- if ( status != ARM_MATH_SUCCESS)
- {
- while (1);
- }
-
- while (1); /* main function does not return */
-}
-
-/** \endlink */
diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/math_helper.c b/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/math_helper.c deleted file mode 100644 index f615e6f..0000000 --- a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/math_helper.c +++ /dev/null @@ -1,466 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
-*
-* $Date: 17. January 2013
-* $Revision: V1.4.0 b
-*
-* Project: CMSIS DSP Library
-*
-* Title: math_helper.c
-*
-* Description: Definition of all helper functions required.
-*
-* Target Processor: Cortex-M4/Cortex-M3
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions
-* are met:
-* - Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* - Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in
-* the documentation and/or other materials provided with the
-* distribution.
-* - Neither the name of ARM LIMITED nor the names of its contributors
-* may be used to endorse or promote products derived from this
-* software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
-* -------------------------------------------------------------------- */
-
-/* ----------------------------------------------------------------------
-* Include standard header files
-* -------------------------------------------------------------------- */
-#include<math.h>
-
-/* ----------------------------------------------------------------------
-* Include project header files
-* -------------------------------------------------------------------- */
-#include "math_helper.h"
-
-/**
- * @brief Caluclation of SNR
- * @param[in] pRef Pointer to the reference buffer
- * @param[in] pTest Pointer to the test buffer
- * @param[in] buffSize total number of samples
- * @return SNR
- * The function Caluclates signal to noise ratio for the reference output
- * and test output
- */
-
-float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize)
-{
- float EnergySignal = 0.0, EnergyError = 0.0;
- uint32_t i;
- float SNR;
- int temp;
- int *test;
-
- for (i = 0; i < buffSize; i++)
- {
- /* Checking for a NAN value in pRef array */
- test = (int *)(&pRef[i]);
- temp = *test;
-
- if (temp == 0x7FC00000)
- {
- return(0);
- }
-
- /* Checking for a NAN value in pTest array */
- test = (int *)(&pTest[i]);
- temp = *test;
-
- if (temp == 0x7FC00000)
- {
- return(0);
- }
- EnergySignal += pRef[i] * pRef[i];
- EnergyError += (pRef[i] - pTest[i]) * (pRef[i] - pTest[i]);
- }
-
- /* Checking for a NAN value in EnergyError */
- test = (int *)(&EnergyError);
- temp = *test;
-
- if (temp == 0x7FC00000)
- {
- return(0);
- }
-
-
- SNR = 10 * log10 (EnergySignal / EnergyError);
-
- return (SNR);
-
-}
-
-
-/**
- * @brief Provide guard bits for Input buffer
- * @param[in,out] input_buf Pointer to input buffer
- * @param[in] blockSize block Size
- * @param[in] guard_bits guard bits
- * @return none
- * The function Provides the guard bits for the buffer
- * to avoid overflow
- */
-
-void arm_provide_guard_bits_q15 (q15_t * input_buf, uint32_t blockSize,
- uint32_t guard_bits)
-{
- uint32_t i;
-
- for (i = 0; i < blockSize; i++)
- {
- input_buf[i] = input_buf[i] >> guard_bits;
- }
-}
-
-/**
- * @brief Converts float to fixed in q12.20 format
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to outputbuffer
- * @param[in] numSamples number of samples in the input buffer
- * @return none
- * The function converts floating point values to fixed point(q12.20) values
- */
-
-void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 1048576.0f corresponds to pow(2, 20) */
- pOut[i] = (q31_t) (pIn[i] * 1048576.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 1.0)
- {
- pOut[i] = 0x000FFFFF;
- }
- }
-}
-
-/**
- * @brief Compare MATLAB Reference Output and ARM Test output
- * @param[in] pIn Pointer to Ref buffer
- * @param[in] pOut Pointer to Test buffer
- * @param[in] numSamples number of samples in the buffer
- * @return maximum difference
- */
-
-uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t *pOut, uint32_t numSamples)
-{
- uint32_t i;
- int32_t diff, diffCrnt = 0;
- uint32_t maxDiff = 0;
-
- for (i = 0; i < numSamples; i++)
- {
- diff = pIn[i] - pOut[i];
- diffCrnt = (diff > 0) ? diff : -diff;
-
- if (diffCrnt > maxDiff)
- {
- maxDiff = diffCrnt;
- }
- }
-
- return(maxDiff);
-}
-
-/**
- * @brief Compare MATLAB Reference Output and ARM Test output
- * @param[in] pIn Pointer to Ref buffer
- * @param[in] pOut Pointer to Test buffer
- * @param[in] numSamples number of samples in the buffer
- * @return maximum difference
- */
-
-uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t * pOut, uint32_t numSamples)
-{
- uint32_t i;
- int32_t diff, diffCrnt = 0;
- uint32_t maxDiff = 0;
-
- for (i = 0; i < numSamples; i++)
- {
- diff = pIn[i] - pOut[i];
- diffCrnt = (diff > 0) ? diff : -diff;
-
- if (diffCrnt > maxDiff)
- {
- maxDiff = diffCrnt;
- }
- }
-
- return(maxDiff);
-}
-
-/**
- * @brief Provide guard bits for Input buffer
- * @param[in,out] input_buf Pointer to input buffer
- * @param[in] blockSize block Size
- * @param[in] guard_bits guard bits
- * @return none
- * The function Provides the guard bits for the buffer
- * to avoid overflow
- */
-
-void arm_provide_guard_bits_q31 (q31_t * input_buf,
- uint32_t blockSize,
- uint32_t guard_bits)
-{
- uint32_t i;
-
- for (i = 0; i < blockSize; i++)
- {
- input_buf[i] = input_buf[i] >> guard_bits;
- }
-}
-
-/**
- * @brief Provide guard bits for Input buffer
- * @param[in,out] input_buf Pointer to input buffer
- * @param[in] blockSize block Size
- * @param[in] guard_bits guard bits
- * @return none
- * The function Provides the guard bits for the buffer
- * to avoid overflow
- */
-
-void arm_provide_guard_bits_q7 (q7_t * input_buf,
- uint32_t blockSize,
- uint32_t guard_bits)
-{
- uint32_t i;
-
- for (i = 0; i < blockSize; i++)
- {
- input_buf[i] = input_buf[i] >> guard_bits;
- }
-}
-
-
-
-/**
- * @brief Caluclates number of guard bits
- * @param[in] num_adds number of additions
- * @return guard bits
- * The function Caluclates the number of guard bits
- * depending on the numtaps
- */
-
-uint32_t arm_calc_guard_bits (uint32_t num_adds)
-{
- uint32_t i = 1, j = 0;
-
- if (num_adds == 1)
- {
- return (0);
- }
-
- while (i < num_adds)
- {
- i = i * 2;
- j++;
- }
-
- return (j);
-}
-
-/**
- * @brief Apply guard bits to buffer
- * @param[in,out] pIn pointer to input buffer
- * @param[in] numSamples number of samples in the input buffer
- * @param[in] guard_bits guard bits
- * @return none
- */
-
-void arm_apply_guard_bits (float32_t *pIn,
- uint32_t numSamples,
- uint32_t guard_bits)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- pIn[i] = pIn[i] * arm_calc_2pow(guard_bits);
- }
-}
-
-/**
- * @brief Calculates pow(2, numShifts)
- * @param[in] numShifts number of shifts
- * @return pow(2, numShifts)
- */
-uint32_t arm_calc_2pow(uint32_t numShifts)
-{
-
- uint32_t i, val = 1;
-
- for (i = 0; i < numShifts; i++)
- {
- val = val * 2;
- }
-
- return(val);
-}
-
-
-
-/**
- * @brief Converts float to fixed q14
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to output buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_float_to_q14 (float *pIn, q15_t *pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 16384.0f corresponds to pow(2, 14) */
- pOut[i] = (q15_t) (pIn[i] * 16384.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 2.0)
- {
- pOut[i] = 0x7FFF;
- }
-
- }
-
-}
-
-
-/**
- * @brief Converts float to fixed q30 format
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to output buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_float_to_q30 (float *pIn, q31_t * pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 1073741824.0f corresponds to pow(2, 30) */
- pOut[i] = (q31_t) (pIn[i] * 1073741824.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 2.0)
- {
- pOut[i] = 0x7FFFFFFF;
- }
- }
-}
-
-/**
- * @brief Converts float to fixed q30 format
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to output buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_float_to_q29 (float *pIn, q31_t *pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 1073741824.0f corresponds to pow(2, 30) */
- pOut[i] = (q31_t) (pIn[i] * 536870912.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 4.0)
- {
- pOut[i] = 0x7FFFFFFF;
- }
- }
-}
-
-
-/**
- * @brief Converts float to fixed q28 format
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to output buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_float_to_q28 (float *pIn, q31_t *pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 268435456.0f corresponds to pow(2, 28) */
- pOut[i] = (q31_t) (pIn[i] * 268435456.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 8.0)
- {
- pOut[i] = 0x7FFFFFFF;
- }
- }
-}
-
-/**
- * @brief Clip the float values to +/- 1
- * @param[in,out] pIn input buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_clip_f32 (float *pIn, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- if (pIn[i] > 1.0f)
- {
- pIn[i] = 1.0;
- }
- else if ( pIn[i] < -1.0f)
- {
- pIn[i] = -1.0;
- }
-
- }
-}
-
-
-
-
diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/math_helper.h b/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/math_helper.h deleted file mode 100644 index 5a18734..0000000 --- a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_fir_example/math_helper.h +++ /dev/null @@ -1,63 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010-2013 ARM Limited. All rights reserved.
-*
-* $Date: 17. January 2013
-* $Revision: V1.4.0
-*
-* Project: CMSIS DSP Library
-*
-* Title: math_helper.h
-*
-* Description: Prototypes of all helper functions required.
-*
-* Target Processor: Cortex-M4/Cortex-M3
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions
-* are met:
-* - Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* - Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in
-* the documentation and/or other materials provided with the
-* distribution.
-* - Neither the name of ARM LIMITED nor the names of its contributors
-* may be used to endorse or promote products derived from this
-* software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
-* -------------------------------------------------------------------- */
-
-
-#include "arm_math.h"
-
-#ifndef MATH_HELPER_H
-#define MATH_HELPER_H
-
-float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize);
-void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples);
-void arm_provide_guard_bits_q15(q15_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
-void arm_provide_guard_bits_q31(q31_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
-void arm_float_to_q14(float *pIn, q15_t *pOut, uint32_t numSamples);
-void arm_float_to_q29(float *pIn, q31_t *pOut, uint32_t numSamples);
-void arm_float_to_q28(float *pIn, q31_t *pOut, uint32_t numSamples);
-void arm_float_to_q30(float *pIn, q31_t *pOut, uint32_t numSamples);
-void arm_clip_f32(float *pIn, uint32_t numSamples);
-uint32_t arm_calc_guard_bits(uint32_t num_adds);
-void arm_apply_guard_bits (float32_t * pIn, uint32_t numSamples, uint32_t guard_bits);
-uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t * pOut, uint32_t numSamples);
-uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t *pOut, uint32_t numSamples);
-uint32_t arm_calc_2pow(uint32_t guard_bits);
-#endif
-
|