On the FRDM-KL25Z, when I declare pins PTA5 and PTD2 as PwmOut pins, they are locked together and can not be independently controlled. It doesn't matter if I change the PWM of PTA5 or PTD2. Whichever one is changed, the other one follows it. The simple code below should keep pin PTD2 at 0% pwm while pin PTA5 should switch between 50% and 0% every 0.5 seconds. Pin PTA5 does alternate between 50% and 0% pwm, but instead of staying at 0% pwm, pin PTD2 follows pin PTA5.
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main.cpp
- Committer:
- chris
- Date:
- 2012-10-12
- Revision:
- 1:eabc6f5b51d6
- Parent:
- 0:cf8a48b1fb23
- Child:
- 2:03e5c29343d1
File content as of revision 1:eabc6f5b51d6:
#include "mbed.h" PwmOut r (LED_RED); PwmOut g (LED_GREEN); PwmOut b (LED_BLUE); int main() { r.period(0.001); g.period(0.001); b.period(0.001); while(1) { for(float i = 0.0; i < 1.0 ; i += 0.001) { float p = 3 * i; r = 1.0 - ((p < 1.0) ? 1.0 - p : (p > 2.0) ? p - 2.0 : 0.0); g = 1.0 - ((p < 1.0) ? p : (p > 2.0) ? 0.0 : 2.0 - p); b = 1.0 - ((p < 1.0) ? 0.0 : (p > 2.0) ? 3.0 - p : p - 1.0); ; wait (0.0025); } } }