Used in class for algorithm development NMHU. Looking at the behavior of the PWM class
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Revision 1:24090ed5f981, committed 2014-09-03
- Comitter:
- scohennm
- Date:
- Wed Sep 03 15:03:30 2014 +0000
- Parent:
- 0:e23fffd4b9a7
- Commit message:
- Example of the use of PWM for the KL46Z. Used for algorithms class at NMHU
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Thu Aug 14 21:18:38 2014 +0000 +++ b/main.cpp Wed Sep 03 15:03:30 2014 +0000 @@ -1,19 +1,22 @@ #include "mbed.h" #define LEDON false #define LEDOFF true +#define PWMDWELL 50// milliseconds +#define DFDELTA 0.01 // slightly more interesting blinky 140814 sc +// Change to use PWM -float blinks[]={0.200, 0.700}; -int ledState = LEDON; -DigitalOut greenColor(LED_GREEN); -DigitalOut redColor(LED_RED); +float dutyFactor = 0.0; +PwmOut greenColor(LED_GREEN); +PwmOut redColor(LED_RED); int main() { while(true) { - ledState = !ledState; // Flip the general state - redColor = ledState; - greenColor = !ledState;// flip state but don't store it. - wait(blinks[ledState]); + redColor.write(dutyFactor); + greenColor.write(1.0 - dutyFactor); + dutyFactor += DFDELTA; + if(dutyFactor >= 1.0) dutyFactor = 0.0; + wait_ms(PWMDWELL); } } \ No newline at end of file