[MinnowBoard] Echo to MinnowBoardMax GPIO export fails
mike at proclivis.com
Thu Jan 8 01:39:54 UTC 2015
Nice, the script works on my board. I can also read values on the pin I need to use.
Thanks a million!
Now I just need to make a Haskell wrapper to go along with I2C module. If anyone else is crazy enough to use Haskell on the MinnowBoardMax, let me know.
On Jan 7, 2015, at 6:32 PM, John Hawley <john.hawley at intel.com> wrote:
> Ok I spent a little bit of time digging into this, it *LOOKS* like
> Ubuntu is offset by +256 vs. stock and/or Fedora kernels. Not 100% sure
> why yet.
> That being said I wrote up a quick script that should discover the right
> values for everything and output it to a text console:
> and I've got a merge request in with it (I'll let Darren have a look at
> it and yell at me about it before it gets merged).
> If you are having problems, can you run that script and let me know if
> the output is right for you? In the meantime I'll try and dig into why
> the offset.
> - John 'Warthog9' Hawley
> On 01/07/2015 06:51 AM, Michael Jones wrote:
>> Very helpful, thanks. I had to think a bit to understand the base of 82 and 154.
>> For others:
>> For 8x, Code GPIO# = 338 + Linux GPIO# (Chart) - 82
>> For 2x, Code GPIO# = 410 + Linux GPIO# (Chart) - 154
>> So for the two examples:
>> 338 + 84 - 82 = 340
>> 410 + 208 - 154 = 464
>> I’ll give this a try later this week.
>> Are there any proper ways to expose the /sys paths for user mode like one can do for /dev/ttyN? Or do people just run their code as root?
>> On Jan 5, 2015, at 7:29 AM, Martin Oldfield <elinux-mbmx-2014-11 at mjoldfield.com> wrote:
>>> I've also found wildly different GPIO numbers on my Minnowboard Max.
>>> You can read about it at
>>> View this message in context: http://minnowboard.57273.x6.nabble.com/MinnowBoard-Echo-to-MinnowBoardMax-GPIO-export-fails-tp903p907.html
>>> Sent from the MinnowBoard mailing list archive at Nabble.com.
>>> elinux-MinnowBoard mailing list
>>> elinux-MinnowBoard at lists.elinux.org
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