[MinnowBoard] mraa minnoboard max GPIO pin mappings.

[John Hawley]

updating kernel or mraa?  I did push some patches recently for newer
kernels w/ mraa as the gpio pin numbering changed

On 2/4/2015 10:05 AM, Kevron Rees wrote:
> Seems to work now after updating.... at least over ssh I get no errors. 
> I'll verify for sure when I get home.
> 
> On Wed, Feb 4, 2015 at 9:31 AM, Kevron Rees <tripzero.kev at gmail.com
> <mailto:tripzero.kev at gmail.com>> wrote:
> 
>     On Feb 3, 2015 9:34 PM, "John "Warthog9" Hawley"
>     <warthog9 at eaglescrag.net <mailto:warthog9 at eaglescrag.net>> wrote:
> 
>         On February 3, 2015 6:35:26 PM PST, Kevron Rees
>         <tripzero.kev at gmail.com <mailto:tripzero.kev at gmail.com>> wrote:
> 
>             Going by this[1], it would seem that the 21 pin corresponds
>             with GPIO on pin 21 of the max.  However, when I run the
>             following code, I get an error: "ValueError: Invalid GPIO
>             pin specified"
> 
>             #!/usr/bin/env python
> 
>             import mraa
>             import time
> 
>             led = mraa.Gpio(21)
> 
>             led.dir(mraa.DIR_OUT)
> 
>             while True:
>                     led.write(1)
>                     time.sleep(1)
>                     led.write(0)
>                     time.sleep(1)
> 
>             Can anyone tell me why my pin is invalid?
> 
>             [1] - http://iotdk.intel.com/docs/master/mraa/minnowmax.html
> 
>             ------------------------------------------------------------------------
> 
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> 
> 
>         Does your kernel have gpio support?
> 
> 
>     I believe so.  I have stuff in /sys/class/gpio and have been able to
>     toggle different IOs on and off using the command line (echo "FTW") 
> 
> 
> 
> 
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