Cameron Causer / Mbed 2 deprecated 4180_L1_P9_AnalogOut_SinWave

Output a sin wave to analog out pin

Dependencies:   mbed

main.cpp@0:ee61df6b19ec, 2018-10-16 (annotated)

Committer:
kzar
Date:
Tue Oct 16 18:57:18 2018 +0000
Revision:
0:ee61df6b19ec
Output a sin wave to analog out pin

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kzar 0:ee61df6b19ec 1 #include "mbed.h"
kzar 0:ee61df6b19ec 2 #include <cmath>
kzar 0:ee61df6b19ec 3 //Declare AnalogOut pin
kzar 0:ee61df6b19ec 4 AnalogOut apin(p18);
kzar 0:ee61df6b19ec 5
kzar 0:ee61df6b19ec 6 int main() {
kzar 0:ee61df6b19ec 7 //Precompute Sin wave values and scale
kzar 0:ee61df6b19ec 8 float SinWave[20];
kzar 0:ee61df6b19ec 9 float increment = 2*3.14/20;
kzar 0:ee61df6b19ec 10 float arg = 0;
kzar 0:ee61df6b19ec 11 for (int i = 0; i < 20; i++) {
kzar 0:ee61df6b19ec 12 SinWave[i] = sin(arg)/2+0.5;
kzar 0:ee61df6b19ec 13 arg = arg + increment;
kzar 0:ee61df6b19ec 14 }
kzar 0:ee61df6b19ec 15 //Output sinwave fovever
kzar 0:ee61df6b19ec 16 while(1) {
kzar 0:ee61df6b19ec 17 for (int i = 0; i < 20; i++) {
kzar 0:ee61df6b19ec 18 apin = SinWave[i];
kzar 0:ee61df6b19ec 19 }
kzar 0:ee61df6b19ec 20 }
kzar 0:ee61df6b19ec 21 }