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:
2016-05-13
Revision:
8:47c89e2ae2e6
Parent:
7:ad8295723268
Child:
9:76be39e5d5ab

File content as of revision 8:47c89e2ae2e6:

#include "mbed.h"

PwmOut r(LED_RED);
PwmOut g(LED_GREEN);
PwmOut b(LED_BLUE);
double rn1;
double rn2;
double rn3;

double dt=0.025f;
double tau=0.125;//0.55
double gain = 0.2;
double c0=exp(-dt/tau);
double c1=1-c0;
int N=(int)(3*tau/dt);

int main()
{
    r.period(0.001f);
    g.period(0.001f);
    b.period(0.001f);
    rn1=0;
    rn2=0;
    rn3=0;
    
    while (true) {
        
        
        rn1=rand()/(float)RAND_MAX;
        rn2=rand()/(float)RAND_MAX;
        rn3=rand()/(float)RAND_MAX;
        rn1=gain*rn1+(1-gain);
        rn2=gain*rn2+(1-gain);
        rn3=gain*rn3+(1-gain);        
        
        for(int i=0; i<N; ++i){
        
        r=c0*r+c1*rn1;
        g=c0*g+c1*rn2;
        b=c0*b+c1*rn3;
        
        wait(dt);
        }
          
        
    }
    
    
}