Diff: main.cpp

Revision:

0:214bf6a684c1

diff -r 000000000000 -r 214bf6a684c1 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Mar 17 17:59:47 2019 +0000
@@ -0,0 +1,89 @@
+/* mbed Example Program
+ * Copyright (c) 2006-2014 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "mbed.h"
+#define PI        (3.141592653589793238462)
+#define AMPLITUDE (1.0)    // x * 3.3V
+#define PHASE     (PI * 1) // 2*pi is one period
+#define RANGE     (0x7FFF)
+#define OFFSET    (0x7FFF)
+
+
+//Ticker flipper;
+//DigitalOut led1(LED1);
+//DigitalOut led2(LED2);
+//AnalogIn   ain(A0);
+
+//Timer t;
+//float duration = 0;
+// Configuration for sinewave output
+#define BUFFER_SIZE (360)
+float buffer_triang[BUFFER_SIZE]={};
+float buffer_sine[BUFFER_SIZE]={};
+float buffer_out0[BUFFER_SIZE]={};
+float buffer_out1[BUFFER_SIZE]={};
+//int K = 0;
+
+void calculate_sinewave(void);
+void calculate_triangwave(void);
+void calculate_out(void);
+// Create the sinewave buffer
+
+void calculate_sinewave(void){
+  for (int i = 0; i < BUFFER_SIZE; i++) {
+     double rads = (PI * i)/180.0; // Convert degree in radian
+     buffer_sine[i] = (float)( ( (cos(rads + PHASE))));
+  }
+}
+
+// Create the triangular buffer
+void calculate_triangwave(void)
+{
+    for (int k = 1; k < 100; k++) {
+        for (int i = 0; i < BUFFER_SIZE; i++) {
+            double rads = (PI * i)/180.0; // Convert degree in radian
+            buffer_triang[i] = (float)( (8/(PI*PI)) *sin(PI*k/2) *(sin(k*rads*10)/(k*k)) + buffer_triang[i]);
+        }
+    }
+}
+// Create the comparação buffer
+void calculate_out(void)
+{
+    for (int k = 1; k < 100; k++) {
+        for (int i = 0; i < BUFFER_SIZE; i++) {
+            buffer_out0[i] = buffer_triang[i]>buffer_sine[i] ;
+        }
+    }
+}
+
+
+    int main() {
+        printf("Sinewave example\n");
+        calculate_sinewave();
+        calculate_triangwave();
+        calculate_out();
+        
+        while(1) {
+            //led2 = !led2;
+            // sinewave output
+            for (int i = 0; i < BUFFER_SIZE; i++) {
+                printf("%f, %f, %f \n", buffer_triang[i]*1.0f,buffer_sine[i]*1.0f,buffer_out0[i]*1.0f);
+                wait(0.001);
+            }
+            //printf("__________________________________\n");
+            //printf("The time taken was %f s \n", duration);
+            //wait(0.2);
+        }
+    }