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diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_linear_interp_example/arm_linear_interp_example_f32.c b/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_linear_interp_example/arm_linear_interp_example_f32.c
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+/* ----------------------------------------------------------------------
+* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
+*
+* $Date:         17. January 2013
+* $Revision:     V1.4.0
+*
+* Project:       CMSIS DSP Library
+* Title:         arm_linear_interp_example_f32.c
+*
+* Description:   Example code demonstrating usage of sin function
+*                and uses linear interpolation to get higher precision
+*
+* 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 LinearInterpExample Linear Interpolate Example
+ *
+ * <b> CMSIS DSP Software Library -- Linear Interpolate Example  </b>
+ *
+ * <b> Description </b>
+ * This example demonstrates usage of linear interpolate modules and fast math modules.
+ * Method 1 uses fast math sine function to calculate sine values using cubic interpolation and method 2 uses
+ * linear interpolation function and results are compared to reference output.
+ * Example shows linear interpolation function can be used to get higher precision compared to fast math sin calculation.
+ *
+ * \par Block Diagram:
+ * \par
+ * \image html linearInterpExampleMethod1.gif "Method 1: Sine caluclation using fast math"
+ * \par
+ * \image html linearInterpExampleMethod2.gif "Method 2: Sine caluclation using interpolation function"
+ *
+ * \par Variables Description:
+ * \par
+ * \li \c testInputSin_f32         points to the input values for sine calculation
+ * \li \c testRefSinOutput32_f32   points to the reference values caculated from sin() matlab function
+ * \li \c testOutput               points to output buffer calculation from cubic interpolation
+ * \li \c testLinIntOutput         points to output buffer calculation from linear interpolation
+ * \li \c snr1                     Signal to noise ratio for reference and cubic interpolation output
+ * \li \c snr2                     Signal to noise ratio for reference and linear interpolation output
+ *
+ * \par CMSIS DSP Software Library Functions Used:
+ * \par
+ * - arm_sin_f32()
+ * - arm_linear_interp_f32()
+ *
+ * <b> Refer  </b>
+ * \link arm_linear_interp_example_f32.c \endlink
+ *
+ */
+
+
+/** \example arm_linear_interp_example_f32.c
+  */
+
+#include "arm_math.h"
+#include "math_helper.h"
+
+#define SNR_THRESHOLD           90
+#define TEST_LENGTH_SAMPLES     10
+#define XSPACING               (0.00005f)
+
+/* ----------------------------------------------------------------------
+* Test input data for F32 SIN function
+* Generated by the MATLAB rand() function
+* randn('state', 0)
+* xi = (((1/4.18318581819710)* randn(blockSize, 1) * 2* pi));
+* --------------------------------------------------------------------*/
+float32_t testInputSin_f32[TEST_LENGTH_SAMPLES] =
+{
+   -0.649716504673081170, -2.501723745497831200,
+    0.188250329003310100,  0.432092748487532540,
+   -1.722010988459680800,  1.788766476323060600,
+    1.786136060975809500, -0.056525543169408797,
+    0.491596272728153760,  0.262309671126153390
+};
+
+/*------------------------------------------------------------------------------
+*  Reference out of SIN F32 function for Block Size = 10
+*  Calculated from sin(testInputSin_f32)
+*------------------------------------------------------------------------------*/
+float32_t testRefSinOutput32_f32[TEST_LENGTH_SAMPLES] =
+{
+   -0.604960695383043530, -0.597090287967934840,
+    0.187140422442966500,  0.418772124875992690,
+   -0.988588831792106880,  0.976338412038794010,
+    0.976903856413481100, -0.056495446835214236,
+    0.472033731854734240,  0.259311907228582830
+};
+
+/*------------------------------------------------------------------------------
+*  Method 1: Test out Buffer Calculated from Cubic Interpolation
+*------------------------------------------------------------------------------*/
+float32_t testOutput[TEST_LENGTH_SAMPLES];
+
+/*------------------------------------------------------------------------------
+*  Method 2: Test out buffer Calculated from Linear Interpolation
+*------------------------------------------------------------------------------*/
+float32_t testLinIntOutput[TEST_LENGTH_SAMPLES];
+
+/*------------------------------------------------------------------------------
+*  External table used for linear interpolation
+*------------------------------------------------------------------------------*/
+extern float arm_linear_interep_table[188495];
+
+/* ----------------------------------------------------------------------
+* Global Variables for caluclating SNR's for Method1 & Method 2
+* ------------------------------------------------------------------- */
+float32_t snr1;
+float32_t snr2;
+
+/* ----------------------------------------------------------------------------
+* Calculation of Sine values from Cubic Interpolation and Linear interpolation
+* ---------------------------------------------------------------------------- */
+int32_t main(void)
+{
+  uint32_t i;
+  arm_status status;
+
+  arm_linear_interp_instance_f32 S = {188495, -3.141592653589793238, XSPACING, &arm_linear_interep_table[0]};
+
+  /*------------------------------------------------------------------------------
+  *  Method 1: Test out Calculated from Cubic Interpolation
+  *------------------------------------------------------------------------------*/
+  for(i=0; i< TEST_LENGTH_SAMPLES; i++)
+  {
+    testOutput[i] = arm_sin_f32(testInputSin_f32[i]);
+  }
+
+  /*------------------------------------------------------------------------------
+  *  Method 2: Test out Calculated from Cubic Interpolation and Linear interpolation
+  *------------------------------------------------------------------------------*/
+
+  for(i=0; i< TEST_LENGTH_SAMPLES; i++)
+  {
+      testLinIntOutput[i] = arm_linear_interp_f32(&S, testInputSin_f32[i]);
+  }
+
+  /*------------------------------------------------------------------------------
+  *            SNR calculation for method 1
+  *------------------------------------------------------------------------------*/
+  snr1 = arm_snr_f32(testRefSinOutput32_f32, testOutput, 2);
+
+  /*------------------------------------------------------------------------------
+  *            SNR calculation for method 2
+  *------------------------------------------------------------------------------*/
+  snr2 = arm_snr_f32(testRefSinOutput32_f32, testLinIntOutput, 2);
+
+  /*------------------------------------------------------------------------------
+  *            Initialise status depending on SNR calculations
+  *------------------------------------------------------------------------------*/
+  if ( snr2 > snr1)
+  {
+    status = ARM_MATH_SUCCESS;
+  }
+  else
+  {
+    status = ARM_MATH_TEST_FAILURE;
+  }
+
+  /* ----------------------------------------------------------------------
+  ** Loop here if the signals fail the PASS check.
+  ** This denotes a test failure
+  ** ------------------------------------------------------------------- */
+  if ( status != ARM_MATH_SUCCESS)
+  {
+    while (1);
+  }
+
+  while (1);                             /* main function does not return */
+}
+
+ /** \endlink */