[squeak-dev] Raspberry Pi - A few questions about I/O

Bert Freudenberg bert at freudenbergs.de
Thu Jan 10 18:52:33 UTC 2013


On 10.01.2013, at 09:59, Chris Cunnington <smalltalktelevision at gmail.com> wrote:

> I'm looking at the files recently released for running Squeak on RPi and I figure to do that I need the actual RPi. But I have a few questions about it.
> 
> The Pi takes an SD Card. I need to order a NutPi from the Pi people, put it on the SD card, and slot it in? Or does the NutPi come on an SD card?

IIUC you need two SD cards (one for the RiscOS, one for the NutPi dev tools), but Tim will know for sure. NutPi is sold as SD card, RiscOS is a free download.

> The image, changes, and sources would go on the same SDCard?

Another one for Tim.

> What's a good monitor and keyboard/mouse? It wants HDMI, and I don't see a jack on my Mac for that. I do think I see one on my Xoom tablet, so maybe I could use that. Is any screen recommended?

Any screen with either DVI or HDMI input will be fine. That is pretty much any monitor or flat-screen TV except the very cheapest ones, which only have VGA inputs. You need a cable with an HDMI plug on the RPi side and HDMI or DVI on the monitor side. There are also cheap adapters between HDMI and DVI, just pay attention to its gender for proper mating.

> And the mouse/keyboard seems to have one USB jack. Is there a mouse/keyboard rig that uses only one USB jack? Instead of two?

You want the RPi model B which has two USB jacks and Ethernet (model A only one USB and no Ethernet).

In any case, you can use any USB hub for plugging in more devices. There also are USB keyboards with a built-in hub, e.g. old full-size Apple ones.

> Does the Pi come with the power cable, or do I need to go to Bob's House Of Cables and get something specific?

You just need a Micro USB cable, like many current mobile phones / tablets.

> My justification for getting involved is that I think looking at how the vm is compiled and built for the Pi might be a little simpler to grasp than the panoply of files usually see that list every known operating system. If it's not, don't tell me. That's my justification for a new toy and I'm sticking to it.
> 
> Thanks,
> Chris

Let us know how you like RiscOS. (I was only running Debian on my RPi and that way it feels no different from any other Linux machine, which is kinda boring, if in a good way)

- Bert -



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