FYI, another item on my todo list is porting the RF24 library to plan9-bcm.
i use nrf24l01+ devices between arduinos and a pi (in Go on linux) for
temp/humidity telemetry.  the device uses the SPI interface.

on a somewhat related note, is anyone building support for Go on Plan 9/ARM?



On Fri, May 9, 2014 at 7:11 AM, Krystian Lewandowski <krystian....@gmail.com
> wrote:

> I was working on GPIO under Plan9 - very simple thing but also supports
> edge-raising/falling events. I had simple C code to print what pin
> triggered an event. I'll try to push this simple test to github during
> weekend. Though i'm not sure how it can be integrated - is events counting
> enough?
>
> Krystian
> https://github.com/elewarr/plan9-bcm
>
> 2014-05-08 20:36 GMT+02:00 Bakul Shah <ba...@bitblocks.com>:
>
> On Thu, 08 May 2014 18:58:31 BST "Steve Simon" <st...@quintile.net> wrote:
>> > I have a hifiberry (http://www.hifiberry.com/) nicely minimalist,
>> > though no driver at present - I will await the GSOC project :-)
>>
>> > I have some itron VFDs from work, 256 x 64 pixel. I like these as
>> > the visibility is excellent. The only annoyance is they have
>> > a parallel interface and I use up all the PI's GPIOs.
>>
>> > I also need to interface a rotary encoder for the tuning knob which
>> > is also a pain - not complex enough to justify an FPGA, but a bit too
>> > much to poll when the PI is doing audio decode as well.
>>
>> No need for polling.  The BCM2835 can handle edge triggered
>> interrupts.  Or you can use a PAL or CPLD.
>>
>> > Thinking of adding a PIC or an AVR just for the encoder / VFD interface
>> > and talking i2c to it.
>>
>>
>

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