ECE4180
/
4180_Lab2_Part1
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Dependencies: mbed
Diff: main.cpp
- Revision:
- 0:1dbc25c03bad
- Child:
- 1:506c8ffad3d8
diff -r 000000000000 -r 1dbc25c03bad main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Sep 04 19:07:09 2015 +0000
@@ -0,0 +1,22 @@
+#include "mbed.h"
+
+// The sinewave is created on this pin
+AnalogOut aout(p18);
+
+int main()
+{
+ const double pi = 3.141592653589793238462;
+ const double amplitude = 0.5f;
+ const double offset = 65535/2;
+ double rads = 0.0;
+ uint16_t sample = 0;
+
+ while(1) {
+ // sinewave output
+ for (int i = 0; i < 360; i++) {
+ rads = (pi * i) / 180.0f;
+ sample = (uint16_t)(amplitude * (offset * (cos(rads + pi))) + offset);
+ aout.write_u16(sample);
+ }
+ }
+}