Add/Remove Board and PWM

[fohnbit]

Hello,

when I create an instance of my class, I run this commands:

private final Board board = Platform.createBoard();

public void init() {

pwm1 = board.getPin(BBBNames.EHRPWM0B_P9_29).as(Pwm.class);

                    pwm2 = board.getPin(BBBNames.EHRPWM0A_P9_31).as(Pwm.class);

                    pwm1.setFrequency((float) getPropertyFrequenz9_21_22());

                       pwm1.setDuty((float) getPropertyDutycyclep9_21_22());

                  pwm1.enable();

                 

                       pwm2.setFrequency((float) getPropertyFrequenz9_21_22());

                       pwm2.setDuty((float) getPropertyDutycyclep9_21_22());

                  pwm2.enable();

}

When I destroy my class, I made this before:

        public void cleanup() {

        board.shutdown();

      }

But sometimes the board will not be creadet ... send error Message when I have it

Then I setup the PWM:

   
pwm1 = board.getPin(BBBNames.EHRPWM0B_P9_29).as(Pwm.class);
                        pwm2 = board.getPin(BBBNames.EHRPWM0A_P9_31).as(Pwm.class);
                        pwm1.setFrequency((float) getPropertyFrequenz9_21_22());
                        pwm1.setDuty((float) getPropertyDutycyclep9_21_22());
                        pwm1.enable();
                       
                        pwm2.setFrequency((float) getPropertyFrequenz9_21_22());
                        pwm2.setDuty((float) getPropertyDutycyclep9_21_22());
                        pwm2.enable();

I get Frequenz and Duty Cycle with:

getPropertyFrequenz9_21_22()

getPropertyDutycyclep9_21_22()

But how I can change Frequenz?

with:

        public void onPwmp921(boolean value) {
                if (value) {
                        pwm1 = board.getPin(BBBNames.EHRPWM0B_P9_29).as(Pwm.class);
                        pwm1.setFrequency((float) getPropertyFrequenz9_21_22());
                        pwm1.setDuty((float) getPropertyDutycyclep9_21_22());
                        pwm1.enable();
                } else {
                        pwm1.disable();
                }

        }

Disable work.

Apr 22 06:24:20 bone kernel: [  808.782079] bone-capemgr bone_capemgr.9: Removed slot #29

But when set "value = true" I get:

Apr 22 06:24:56 bone fohn[619]: java.lang.reflect.InvocationTargetException

Apr 22 06:24:56 bone fohn[619]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Apr 22 06:24:56 bone fohn[619]: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

Apr 22 06:24:56 bone fohn[619]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

Apr 22 06:24:56 bone fohn[619]: at java.lang.reflect.Method.invoke(Method.java:483)

Apr 22 06:24:56 bone fohn[619]: at com.fohn.core.base.Node.incomingEventMethod(Fohn.java:755)

Apr 22 06:24:56 bone fohn[619]: at com.fohn.core.base.EventManager$NodeQueueThread.run(EventManager.java:436)

Apr 22 06:24:56 bone  fohn[619]: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

Apr 22 06:24:56 bone fohn[619]: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

Apr 22 06:24:56 bone fohn[619]: at java.lang.Thread.run(Thread.java:745)

Apr 22 06:24:56 bone fohn[619]: Caused by: java.lang.NullPointerException

Apr 22 06:24:56 bone fohn[619]: at org.bulldog.beagleboneblack.gpio.BBBPwm.enableImpl(BBBPwm.java:155)

Apr 22 06:24:56 bone fohn[619]: at org.bulldog.core.gpio.base.AbstractPwm.enable(AbstractPwm.java:23)

Apr 22 06:24:56 bone fohn[619]: at com.fohn.home.base.fohn.onPwmp921(GDfohn.java:951)

Apr 22 06:24:56 bone fohn[619]: ... 9 more

So how I can change the PWm settings in Lifetime?

Thank you!