Sami Kanderian / Mbed 2 deprecated FRDM-KL25Z_PWM_PTA5_PTD2

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.

Dependencies:   mbed

Fork of frdm_rgbled by Freescale

main.cpp

Committer:
skanderian
Date:
2016-07-08
Revision:
9:76be39e5d5ab
Parent:
8:47c89e2ae2e6

File content as of revision 9:76be39e5d5ab:

/*Can not independently PWM control pins PTA5 and PTD2.
When pins PTA5 and PTD2 are declared as PwmOut pins, they are locked together and can not be independently controlled.
This code 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.
by Sami Kanderian 7/8/2016
*/
#include "mbed.h"

PwmOut pwmPelCooler(PTA5);
PwmOut pwmCapHeater(PTD2);

int main()
{
    double dt=0.5f;
    pwmPelCooler.period(0.001f);
    pwmCapHeater.period(0.001f);
    wait(0.5);
    pwmPelCooler=0.5f;
    pwmCapHeater=0.0f;
    bool mySwitch = false;
    while(true) {

        mySwitch=!mySwitch;
        if (mySwitch) {
            pwmPelCooler=0.5f;
        } else {
            pwmPelCooler=0.0f;
        }
        wait(dt);
    }
}