PWM with CubeCell Board

#1

Hello,

is it possible to get a sample code around a digital I/O-PIN to configure variable PWM. I need to use high PWM frequency and an adjustable duty ratio with a resolution greater than 255 (1024).

Greetings

E_T

#2

Here is a PWM example:

#3

Thank you supporter.

Yes, this is the PWM implementation that applies to all Arduino boards.

However, I would like to be able to determine the parameters myself, i.e. configure the internal timer for the PWM myself.

E.g. varable a or b should not go from 0-255, it should go from 0-1023

Ideally, the base frequency of the PWM should also be configurable.

Kind regards

E_T

#4

Don’t have such a function now…

Anyway, do you have some other example with the function you wanted? That will make a directly sense to me.

#5

Ok, here my idea:

#include "Arduino.h"


void setup() {
  // put your setup code here, to run once:
	pinMode(PWM1,OUTPUT);
	pinMode(PWM2,OUTPUT);
       **setPWM_frequency = 100000; // example 100000 Hz**
}

**uint16_t a=0**; // possible 0 -1023 or greater, the internal timer for PWM should be a 16 Bit-Timer
**uint16_t b=0;**

void loop() {
  // put your main code here, to run repeatedly:
  **analogWrite_custom**(PWM1,a);//GPIO2
  **analogWrite_custom**(PWM2,b);//GPIO3
  delay(10);
  a++;
  b--;
}

Kind regards

E_T

#6

OK

You will see this function in next release.

#7

Thank you!

Kind regards
E_T

#8

Any updates on this PWM function?

#9

The PWM frequency updated to 65535.

#10

It is updated in git. If install by arduino IDE, it is not updated yet

#11

Just checked out the git. Looks like the frequency of the PWM isn’t adjustable/settable still. Is that correct?