Matthew Shuman / Mbed 2 deprecated Lab1TestAdvanced

This loops through PWM outputs connected to the red and green LED.

Dependencies:   mbed

main.cpp@3:e13f77e8172a, 2016-08-12 (annotated)

Committer:
mattshuman
Date:
Fri Aug 12 22:03:48 2016 +0000
Revision:
3:e13f77e8172a
Parent:
2:758d7363957f
Child:
4:a8b0243f29b7
Second test program, showing some types of comments used to explain a non-trivial program.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mattshuman 3:e13f77e8172a 1 /*! Lab1TestAdvanced
mattshuman 3:e13f77e8172a 2 * Used for advanced LED blinking with the FRDM-KL46Z.
mattshuman 3:e13f77e8172a 3 * \author Matthew Shuman
mattshuman 3:e13f77e8172a 4 *
mattshuman 3:e13f77e8172a 5 * \date August 12th, 2016
mattshuman 3:e13f77e8172a 6
mattshuman 3:e13f77e8172a 7 * \bug No bugs yet
mattshuman 3:e13f77e8172a 8
mattshuman 3:e13f77e8172a 9 * @code
mattshuman 3:e13f77e8172a 10 * #include "mbed.h"
mattshuman 3:e13f77e8172a 11 *
mattshuman 3:e13f77e8172a 12 * int main()
mattshuman 3:e13f77e8172a 13 * {
mattshuman 3:e13f77e8172a 14 * }
mattshuman 3:e13f77e8172a 15 * @endcode
mattshuman 3:e13f77e8172a 16 */
mattshuman 3:e13f77e8172a 17
mattshuman 0:62faec5d4c84 18 #include "mbed.h"
mattshuman 0:62faec5d4c84 19
mattshuman 3:e13f77e8172a 20
mattshuman 3:e13f77e8172a 21 //This creates Pulse Width Modulated outputs, r and g, and connects them to the red and green LED.
mattshuman 0:62faec5d4c84 22 PwmOut r(LED_RED);
mattshuman 0:62faec5d4c84 23 PwmOut g(LED_GREEN);
mattshuman 0:62faec5d4c84 24
mattshuman 0:62faec5d4c84 25 int main()
mattshuman 0:62faec5d4c84 26 {
mattshuman 3:e13f77e8172a 27 //The period of the PWM is set to 1 millisecond.
mattshuman 0:62faec5d4c84 28 r.period(0.001f);
mattshuman 0:62faec5d4c84 29 g.period(0.001f);
mattshuman 0:62faec5d4c84 30 while (true) {
mattshuman 0:62faec5d4c84 31 for (float i = 0.0f; i < 1.0f ; i += 0.001f) {
mattshuman 3:e13f77e8172a 32 float j = 2 * i; //Sweep the j value between 0 and 2, with .002 steps
mattshuman 2:758d7363957f 33 if(p<1)
mattshuman 3:e13f77e8172a 34 r=j;
mattshuman 2:758d7363957f 35 else
mattshuman 3:e13f77e8172a 36 r=j-1; //Sweep the red LED 2 times during the loop, igorning the integer portion of the float number.
mattshuman 0:62faec5d4c84 37 g = i; //Sweep the green LED 1 time during the loop.
mattshuman 0:62faec5d4c84 38 wait (0.0025f); //Wait 2.5 milliseconds per iteration, 2.5 seconds per full loop.
mattshuman 0:62faec5d4c84 39 }
mattshuman 0:62faec5d4c84 40 }
mattshuman 0:62faec5d4c84 41 }