Add internal oscillator support via make options, add internal oscillator trim support

.gitignore

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 build/*
+/Default/

Drivers/CMSIS/DSP_Lib/Examples/arm_class_marks_example/ARM/arm_class_marks_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_class_marks_example_f32.c
+*
+* Description:   Example code to calculate Minimum, Maximum
+*                Mean, std and variance of marks obtained in a class
+*
+* 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 ClassMarks Class Marks Example
+ *
+ * \par Description:
+ * \par
+ * Demonstrates the use the Maximum, Minimum, Mean, Standard Deviation, Variance
+ * and Matrix functions to calculate statistical values of marks obtained in a class.
+ *
+ * \note This example also demonstrates the usage of static initialization.
+ *
+ * \par Variables Description:
+ * \par
+ * \li \c testMarks_f32 points to the marks scored by 20 students in 4 subjects
+ * \li \c max_marks     Maximum of all marks
+ * \li \c min_marks     Minimum of all marks
+ * \li \c mean          Mean of all marks
+ * \li \c var           Variance of the marks
+ * \li \c std           Standard deviation of the marks
+ * \li \c numStudents   Total number of students in the class
+ *
+ * \par CMSIS DSP Software Library Functions Used:
+ * \par
+ * - arm_mat_init_f32()
+ * - arm_mat_mult_f32()
+ * - arm_max_f32()
+ * - arm_min_f32()
+ * - arm_mean_f32()
+ * - arm_std_f32()
+ * - arm_var_f32()
+ *
+ * <b> Refer  </b>
+ * \link arm_class_marks_example_f32.c \endlink
+ *
+ */
+
+
+/** \example arm_class_marks_example_f32.c
+  */
+#include "arm_math.h"
+
+#define USE_STATIC_INIT
+
+ /* ----------------------------------------------------------------------
+** Global defines
+** ------------------------------------------------------------------- */
+
+#define TEST_LENGTH_SAMPLES   (20*4)
+
+/* ----------------------------------------------------------------------
+** List of Marks scored by 20 students for 4 subjects
+** ------------------------------------------------------------------- */
+const float32_t testMarks_f32[TEST_LENGTH_SAMPLES] =
+{
+  42.000000,  37.000000,  81.000000,  28.000000,
+  83.000000,  72.000000,  36.000000,  38.000000,
+  32.000000,  51.000000,  63.000000,  64.000000,
+  97.000000,  82.000000,  95.000000,  90.000000,
+  66.000000,  51.000000,  54.000000,  42.000000,
+  67.000000,  56.000000,  45.000000,  57.000000,
+  67.000000,  69.000000,  35.000000,  52.000000,
+  29.000000,  81.000000,  58.000000,  47.000000,
+  38.000000,  76.000000, 100.000000,  29.000000,
+  33.000000,  47.000000,  29.000000,  50.000000,
+  34.000000,  41.000000,  61.000000,  46.000000,
+  52.000000,  50.000000,  48.000000,  36.000000,
+  47.000000,  55.000000,  44.000000,  40.000000,
+ 100.000000,  94.000000,  84.000000,  37.000000,
+  32.000000,  71.000000,  47.000000,  77.000000,
+  31.000000,  50.000000,  49.000000,  35.000000,
+  63.000000,  67.000000,  40.000000,  31.000000,
+  29.000000,  68.000000,  61.000000,  38.000000,
+  31.000000,  28.000000,  28.000000,  76.000000,
+  55.000000,  33.000000,  29.000000,  39.000000
+};
+
+
+/* ----------------------------------------------------------------------
+* Number of subjects X 1
+* ------------------------------------------------------------------- */
+const float32_t testUnity_f32[4] =
+{
+  1.000,  1.000,   1.000,  1.000
+};
+
+
+/* ----------------------------------------------------------------------
+** f32 Output buffer
+** ------------------------------------------------------------------- */
+static float32_t testOutput[TEST_LENGTH_SAMPLES];
+
+
+/* ------------------------------------------------------------------
+* Global defines
+*------------------------------------------------------------------- */
+#define   NUMSTUDENTS  20
+#define     NUMSUBJECTS  4
+
+/* ------------------------------------------------------------------
+* Global variables
+*------------------------------------------------------------------- */
+
+ uint32_t    numStudents = 20;
+ uint32_t    numSubjects = 4;
+float32_t    max_marks, min_marks, mean, std, var;
+ uint32_t    student_num;
+
+/* ----------------------------------------------------------------------------------
+* Main f32 test function.  It returns maximum marks secured and student number
+* ------------------------------------------------------------------------------- */
+
+int32_t main()
+{
+
+#ifndef  USE_STATIC_INIT
+
+  arm_matrix_instance_f32 srcA;
+  arm_matrix_instance_f32 srcB;
+  arm_matrix_instance_f32 dstC;
+
+  /* Input and output matrices initializations */
+  arm_mat_init_f32(&srcA, numStudents, numSubjects, (float32_t *)testMarks_f32);
+  arm_mat_init_f32(&srcB, numSubjects, 1, (float32_t *)testUnity_f32);
+  arm_mat_init_f32(&dstC, numStudents, 1, testOutput);
+
+#else
+
+  /* Static Initializations of Input and output matrix sizes and array */
+  arm_matrix_instance_f32 srcA = {NUMSTUDENTS, NUMSUBJECTS, (float32_t *)testMarks_f32};
+  arm_matrix_instance_f32 srcB = {NUMSUBJECTS, 1, (float32_t *)testUnity_f32};
+  arm_matrix_instance_f32 dstC = {NUMSTUDENTS, 1, testOutput};
+
+#endif
+
+
+  /* ----------------------------------------------------------------------
+  *Call the Matrix multiplication process function
+  * ------------------------------------------------------------------- */
+  arm_mat_mult_f32(&srcA, &srcB, &dstC);
+
+  /* ----------------------------------------------------------------------
+  ** Call the Max function to calculate max marks among numStudents
+  ** ------------------------------------------------------------------- */
+  arm_max_f32(testOutput, numStudents, &max_marks, &student_num);
+
+  /* ----------------------------------------------------------------------
+  ** Call the Min function to calculate min marks among numStudents
+  ** ------------------------------------------------------------------- */
+  arm_min_f32(testOutput, numStudents, &min_marks, &student_num);
+
+  /* ----------------------------------------------------------------------
+  ** Call the Mean function to calculate mean
+  ** ------------------------------------------------------------------- */
+  arm_mean_f32(testOutput, numStudents, &mean);
+
+  /* ----------------------------------------------------------------------
+  ** Call the std function to calculate standard deviation
+  ** ------------------------------------------------------------------- */
+  arm_std_f32(testOutput, numStudents, &std);
+
+  /* ----------------------------------------------------------------------
+  ** Call the var function to calculate variance
+  ** ------------------------------------------------------------------- */
+  arm_var_f32(testOutput, numStudents, &var);
+
+  while(1);                             /* main function does not return */
+}