[sdiy] Raspberry Pi

[Paul Maddox]

Eric,

  I'm hoping, that I can write stuff to run under a version of linux that runs on the board, and just use the APIs for SPI/I2S/UART to access what I need/want.

  The other alternative is the beagle board, or beagle bone...

  Perhaps my biggest worry, with both of these, is how to develop code to run/manage a synthesiser. There is a huge step change required in swapping from writing embedded C for an AVR to writing an app for embedded linux.
  Does anyone have any recommendations for books to help with this step?

Paul


On 20 Nov 2011, at 15:16, Eric Brombaugh wrote:

> GPIO is the key to using this in DIY/Synth applications. There's a pretty good write up on the hardware over at the elinux.org site which gives some more detail on what's available:
> 
> http://elinux.org/RaspberryPiBoard#Hardware_Details
> 
> I2C, SPI etc. are all in the cards. The main caveat is that the ARM SoC they're using is from Broadcom who are notoriously tight-fisted about documentation. If hobbyists need to run a marketing gauntlet and sign an NDA to get a datasheet for this then it's going to slow down the development of interesting applications.
> 
> Eric
> 
> On Nov 20, 2011, at 7:56 AM, Paul Maddox wrote:
> 
>> Well, for me it is...
>> 
>> It's small, and it has GPIO, so I could use the SPI, I2S and UART to connect to say, an FPGA, some DACs driving some VCFs, some VCAs and you've got yourself a synth.
>> 
>> It's also small enough that it could form part of a small sequencer, or MIDI controller... to upgrade the OS, add a new file to the SDCard, and switch on.
>> 
>> On 20 Nov 2011, at 13:58, Gabbe wrote:
>> 
>>> It's on my watchlist, but not in a SDIY sort or way...
>>> 
>>> Paul Maddox <yo at VacoLoco.net> skrev:
>>> 
>>>> Anyone else seen this little gem?
>>>> 
>>>> http://www.raspberrypi.org/
>>>> 
>>>> I think I'll add one, or two, to my Xmas wish list.
> 

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