The MAX197 adc kernel driver by Phillip McCarley makes use of a timer.
It might be a good starting point.
On Wed, 9 Apr 2008, sennyk wrote:
> I've been meaning to do exactly this for some time; however, I haven't
> had the time. You will likely need to make use of an unused timer on
> the processor. That would require writing a driver or find one
> already written. If I'm not mistaken, someone has written a high
> resolution timer and posted it here already. I'd search the archives
> for a solution.
>
> --- In "tmoraes10" <> wrote:
>>
>> Hi, i wanna know where can i find something about to implement PWM in
>> DIO ports (by software). My board is TS-7400. I wanna make it using
>> timers functions.
>>
>> Somebody could help me?
>> Thanks...
>> Regards, Thiago
>>
>
>
>
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