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From: "Rego, P." <pvrego@gmail.com>
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Subject: Re: Chicken or the egg. New targets & runtimes
Date: Tue, 15 May 2012 12:44:13 -0700 (PDT)
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Date: 2012-05-15T12:44:13-07:00
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> http://sourceforge.net/apps/mediawiki/avr-ada/index.php?title=3DAVR-Ada

Patrick,=20

On AVRs you have also the GNAT-AVR Windows cross-compiler (you can generate=
 the target .hex on a Windows machine), you can download the GPL version fr=
om Adacore Libre http://libre.adacore.com/download/configurations?config=3D=
avr-elf-windows&version=3D2011. The only limitation I see on it is that the=
y only provide a ZFP (Zero Footprint Profile), not a complete RTS. So you c=
annot use tasking and exceptions (and several other Ada features). But with=
 AVR-Ada you also cannot use it, so currently you do not have tasking suppo=
rt for AVRs, instead of using RTOSes approach. The tutorial http://student.=
agh.edu.pl/~mkucia/wiki/doku.php?id=3Davrada helps in using the GNAT-AVR, a=
nd you can use it under GPS, fortunately.

I also could not find much things respect to AVR RTS, but Brian Drummond to=
ld me that people from AVR-Ada project got some success in developing it ov=
er the non-yet-release AVR-Ada package. But these info are spread over the =
list http://news.gmane.org/gmane.comp.hardware.avr.ada, and I did not have=
=20
time to study it. As he says, that's lot of reading (and now I agree). But =
it's  in my thread, so I intend to make it (hope) soon, if someone doesn't =
do it before :-)

Some time ago I had also looked for open-source RTOSes with Ada support, an=
d I found:
- for AVRs, just RTEMS
- MaRTE OS, http://marte.unican.es/documentation.htm, but for other chips

and someone once suggested that making an Ada porting to FreeRTOS (which is=
 written in C) would be easy, did not check it.