[PD] Raspberry Pi does denormals

[Hans-Christoph Steiner]

On 01/24/2013 01:33 PM, padawan12 at obiwannabe.co.uk wrote:
> On 24 January 2013 at 17:18 Hans-Christoph Steiner <hans at at.or.at> wrote:
>> On 01/24/2013 04:56 AM, katja wrote:
>>> On Wed, Jan 23, 2013 at 8:00 PM, padawan12 at obiwannabe.co.uk
>>> <padawan12 at obiwannabe.co.uk> wrote:
>>>>
>>>> On 23 January 2013 at 18:23 katja <katjavetter at gmail.com> wrote:
>>>>> Now I recompiled the Pd-0.44.0 release on Raspberry Pi (took me a few
>>>>> hours, not only because Pi is so slow)
>>>>
>>>> Have you looked into cross compiling options much?
>>>> there's plenty of arm7 support avail lst time I looked
>>>> Just thinking out loud....
>>>> a.
>>>
>>> I haven't looked at cross compiling options yet. Frankly, I'm
>>> fascinated by the fact that Raspberry Pi is self-supporting. All the
>>> GNU tools and other familiar deb packages working on a pocket size
>>> circuit board. That's why I like RPi (and not the Android/iOS
>>> gadgets). If you know what you're doing, you can start some job and
>>> leave Pi alone. In the case of compiling Pd, the job was interrupted
>>> by errors several times. Install instructions could be more complete.
>>> I should make some notes and post them.
>>>
>>> Katja
>>>
>>
>>
>> I just set up an RPi chroot on one of the PdLab machines, it was pretty easy
>> to do on Debian. Then you just run 'dchroot -d -c raspbian-armhf' and you
>> have a shell in a virtual RPi. You can get access if you want:
>>
>> http://puredata.info/docs/developer/PdLab
>>
>> .hc
> 
> Sweet. I'll give the chroot method a spin. I like working on native
> images this way, but when emulating on a host machine anything
> to do with networking seems to be a minefield.  Which amplifies
> Katja's preference at being able to do it all in the real machine.
> The trade off is speed I guess. Emulate it until most is done
> and then tweak on the real board. I saw a few blogs about using
> qemu or virtual-box as an arm emulator, but the setup seemed
> quite involved.

With the chroot method, networking is entirely handled by the host, so that
has been working pretty well for me.  But I don't run network services in the
chroot.

Here's how I did it:

http://annoyingtechnicaldetails.wordpress.com/2013/01/24/setting-up-a-chroot-for-raspbian/

.hc