How to connect 13 devices working with PWM driver?

[BelvitaSoft]

Hi guys! I feel really excited about working with Nordic Semiconductors, but I have a problem with PWM driver. 

Do you know how to support 13 independent devices that will work with Pulse Width Modulation?

As I read - we have the possibility to work with 3 PWM instances (which determines frequency) and 4 channels assigned to each instance.
It gives us 12 connections, but I need to handle more devices that will be working with Pulse Width Modulation. 

Any idea how to find a way to bypass this issue?

Thank you and good luck with your projects!

Greeting from Columbia! 

[haakonsh]

¡Hola!

Yes, the PWM library uses a TIMER and GPIOTE via PPI to create a PWM instance. 

See also Pulse-width modulation (PWM) API. 

Cheers!

[BelvitaSoft]

Hola, Haakonsh! Thanks for your reply, but to be honest I'm not sure if we understand each other....

As was mentioned in this post - "multiple channels":
With the PWM library you have 2 PWM output channels per PWM instance.
With the PWM driver you have 4 PWM output channels per PWM instance.

So in PWM library, we have even fewer channels, than in PWM driver. 
Did you mean to connect both examples together to obtain more channels and instances? I think there will be conflict...

Best Regards,
B.S.

[haakonsh]

You use both and there will not be a conflict. The PWM library does not use the PWM peripherals but instead makes one with a TIMER and GPIOTE. One PWM library instance can give you two additional PWM outputs, and you can have multiple PWM library instances as long as there's a TIMER, GPIOTE channel, and PPI channel available for it.

[BelvitaSoft]

Thanks for your help :) It works!

[haakonsh]

Glad to hear^^