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From: Oliver Kleinke <oliver.kleinke@c-01a.de>
Newsgroups: comp.lang.ada
Subject: Re: Interrupt-driven Usart not working in Ada, but in C working, why?
Date: Tue, 18 Mar 2014 15:08:54 +0100
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Date: 2014-03-18T15:08:54+01:00
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Am Mon, 17 Mar 2014 13:28:13 -0700 (PDT)
schrieb "Rego, P." <pvrego@gmail.com>:

> On Monday, March 17, 2014 9:17:33 AM UTC-3, rrr.e...@gmail.com wrote:
> > AVR-Ada has both polled and interrupt driven UART packages. Both
> > work at least on atmega328. I never tried ATmega2560.
> 
> Yes, I also tried with ATmega328P and fully worked.
> 
> > As far as I remember one of the two versions exhibited a bug in the
> > FSF-gnat of the time (gcc-4.5 or gcc-4.6). It was fixed in a later
> > gcc release (4.7.1?).  You also might try a more recent gcc version.
> 
> That means I would have to build the cross-compiler, right? (it takes
> off the fun of using gnat-gpl-2012-avr-windows-bin.exe installer :)

Here's a script/instructions to build a cross-compiler:
http://arduino.ada-language.com/automating-avr-gnat-and-avr-ada-installation.html