On Mon, Feb 8, 2016 at 4:22 PM, Mark A. Yoder <[email protected]> wrote:
> I'm have trouble reproducing this.  I'm running
>
> cat /etc/dogtag
> BeagleBoard.org Debian Image 2016-01-24
> cat $SLOTS
>  0: PF----  -1
>  1: PF----  -1
>  2: PF----  -1
>  3: PF----  -1
>  4: P-O-L-   0 Override Board Name,00A0,Override Manuf,cape-universaln
>
> Wire an LED to P9_14 and then:
> cd /sys/class/pwm/pwmchip3
> echo 0 > export
> cd pwm0
> echo 1 > enable
> echo 1000000000 > period
> echo  500000000 > duty_cycle
>
> No errors, but the LED doesn't flash. The LED does turn on when I control
> via the GPIO.
>
> What am I missing?

What's the status of P9_14?

sudo config-pin -q P9.14

sudo config-pin P9.14 pwm

then re-check:

sudo config-pin -q P9.14

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

-- 
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