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Newsgroups: comp.lang.ada
Date: Mon, 2 Jan 2017 23:55:50 -0800 (PST)
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Subject: Re: Interfacing Ada With Full Runtime Directly to Electronic Chips
From: philip.munts@gmail.com
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Xref: news.eternal-september.org comp.lang.ada:33014
Date: 2017-01-02T23:55:50-08:00
List-Id: <comp.lang.ada>

On Monday, January 2, 2017 at 3:42:06 AM UTC+1, pat...@spellingbeewinnars.o=
rg wrote:
> Hi Everyone
>=20
> Happy New Year!
>=20
> Ada-AVR is a neat project and I am not knocking it. It doesn't have taski=
ng support yet but this is of course a huge job.
>=20
> If I want to connect any sort of computer running Linux directly to a cir=
cuit using "full Ada" with tasking support what are my options?
>=20
> By circuit, I mean a variety of electronic components and in this case wi=
th no microcontroller, an A/D chip is a simple example.
>=20
> I am thinking that single board computers like BeagleBone are my best bet=
, they have plenty of GPIO lines.
>=20
> Has anyone interfaced directly with chips via SPI or IC2 via a GPIO PCI c=
ard or GPIO-USB adapter ?
>=20
> Is there any other options?
>=20
> Thanks-Patrick

I suggest my own Linux Simple I/O Library (http://git.munts.com/libsimpleio=
).  It provides Pascal calling sequence wrappers around the Linux system ca=
lls for I2C, SPI, UART, and raw HID devices and includes some shim packages=
 for GNAT.

I have tested it with both native and cross compilers on the BeagleBones Bl=
ack and Green and Raspberry Pi 2 and 3.  I use it mostly with the Raspberry=
 Pi 2 cross toolchain (which also works fine for the BeagleBone family) fro=
m AdaCore and targeted to my own embedded Linux distribution called MuntsOS=
 (http://git.munts.com/arm-linux-mcu).

I also have a collection of packages and example programs for various Mikro=
elektronika click boards and Raspberry Pi hats that are not published yet. =
 I am in the middle of writing a paper about this very topic.

Phil