PWM Output Steering?

Thread Starter

spinnaker

Joined Oct 29, 2009
7,830
My PC18F14k22 has "output steering". Exactly waht is output steering and why would I use it?

Datasheet says

In Single Output mode, pulse steering allows any of the
PWM pins to be the modulated signal. Additionally, the
same PWM signal can be simultaneously available on
multiple pins.



But I am not so sure this explains it, nor do I understand it. ;)

This is really my first stab at PWM using on board peripherals.
 

Papabravo

Joined Feb 24, 2006
21,228
My PC18F14k22 has "output steering". Exactly waht is output steering and why would I use it?

Datasheet says

In Single Output mode, pulse steering allows any of the
PWM pins to be the modulated signal. Additionally, the
same PWM signal can be simultaneously available on
multiple pins.



But I am not so sure this explains it, nor do I understand it. ;)

This is really my first stab at PWM using on board peripherals.
What this means is that you can route the output of the PWM module to any one or more of the PWM output pins. This gives you enormous flexibility in layout on a tight board. This will also allow you to avoid conflicts for pins with multiple functions defined for them. For example if you need to use a UART and the UART Rx pin conflicts with a PWM output pin -- you can move the PWM output to another available pin.
 

Thread Starter

spinnaker

Joined Oct 29, 2009
7,830
Thanks. It sort of sounds like programmable pins for another chip I have used. Expect that one could do more than PWM. So if the chip has only one ECCP module, I can only have one (or the same) output for each of those pins?
 
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