[CI] Add CMSIS DSP to example

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

CI/build/examples/BareMinimum/BareMinimum.ino

@@ -15,6 +15,36 @@
 #include <SoftwareSerial.h>
 #include <Wire.h>
 
+#include <CMSIS_DSP.h>
+/* ----------------------------------------------------------------------
+  Defines each of the tests performed
+  ------------------------------------------------------------------- */
+#define MAX_BLOCKSIZE   2
+#define DELTA           (0.0001f)
+/* ----------------------------------------------------------------------
+  Test input data for Floating point sin_cos example for 32-blockSize
+  Generated by the MATLAB randn() function
+  ------------------------------------------------------------------- */
+const float32_t testInput_f32[MAX_BLOCKSIZE] =
+{
+  -1.244916875853235400,  -4.793533929171324800
+};
+const float32_t testRefOutput_f32 = 1.000000000;
+/* ----------------------------------------------------------------------
+  Declare Global variables
+  ------------------------------------------------------------------- */
+uint32_t blockSize = 2;
+float32_t  testOutput;
+float32_t  cosOutput;
+float32_t  sinOutput;
+float32_t  cosSquareOutput;
+float32_t  sinSquareOutput;
+/* ----------------------------------------------------------------------
+  Max magnitude FFT Bin test
+  ------------------------------------------------------------------- */
+arm_status status;
+/* CMSIS_DSP */
+
 #ifndef USER_BTN
 #define USER_BTN      2
 #endif
@@ -103,6 +133,28 @@ void setup() {
   Wire.endTransmission();
   Wire.requestFrom(2, 1);
   Wire.end();
+
+  // CMSIS DSP
+  float32_t diff;
+  for (uint32_t i = 0; i < blockSize; i++) {
+    cosOutput = arm_cos_f32(testInput_f32[i]);
+    sinOutput = arm_sin_f32(testInput_f32[i]);
+    arm_mult_f32(&cosOutput, &cosOutput, &cosSquareOutput, 1);
+    arm_mult_f32(&sinOutput, &sinOutput, &sinSquareOutput, 1);
+    arm_add_f32(&cosSquareOutput, &sinSquareOutput, &testOutput, 1);
+    /* absolute value of difference between ref and test */
+    diff = fabsf(testRefOutput_f32 - testOutput);
+    /* Comparison of sin_cos value with reference */
+    status = (diff > DELTA) ? ARM_MATH_TEST_FAILURE : ARM_MATH_SUCCESS;
+    if ( status == ARM_MATH_TEST_FAILURE) {
+      break;
+    }
+  }
+  if (status != ARM_MATH_SUCCESS) {
+    Serial.printf("FAILURE\n");
+  } else {
+    Serial.printf("SUCCESS\n");
+  }
 }
 
 void loop() {
@@ -120,4 +172,4 @@ void receiveEvent(int) {
 // this function is registered as an event, see setup()
 void requestEvent() {
   Wire.write("x");
-}
+}