Re: PWM Sample Code?

> Hi David,
>
>>  > That's because nobody has yet create the PWM page :)
>>
>>  Well, that makes sense, but shouldn't it say something other than:
>>  "The action you have requested is limited to users in the group user."
>>
>>  It would be less confusing!  :)
>
> Yeh - what's happening is that when you create a page and put a wiki
> link to a non-existant page, then they expect that you're going to
> want to create the page, so the link is actually a link to "Edit the
> page named PWM". In order to edit a page, you need to be logged in.
>
> So that's why it is the way it is. You could login and create an empty
> placeholder page to get rid of that :)
>
>>  > Are you looking for PWM for the purposes of controlling something like
>>  > a backlight?
>>  > Or PWM code for controlling somehing like an R/C servo?
>>
>>  I'm just looking for examples on playing with the memory mapped
>> registers and GPIO from with C.
>
> Then the GPIO example code should do what you want.
> <http://docswiki.gumstix.com/index.php/Sample_code/C/gpregs>
>
> Just change:
>
> #ifdef __ARM_EABI__
>              0x40E00000 / MAP_SIZE
> #else
>              0x40E00000 & ~MAP_MASK
> #endif
>
> to be
>              0x40E00000 & ~MAP_MASK
>
>>  Controlling an R/C servo would be fine for me.
>>
>>  I did come across this:
>>  paxRC - R/C and robotics software for Linux/PXA255/PXA270
>>  http://www.pabr.org/pxarc/doc/pxarc.en.html
>
> Yeah - that's what I was going to point you to if it was R/C servos
> you were interested in.
>
> --
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
>
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