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Newsgroups: comp.lang.ada
Date: Thu, 28 Aug 2014 10:03:31 -0700 (PDT)
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Subject: Re: STM32F4 Discovery, communication and libraries
From: Roy Emmerich <roy.emmerich@gmail.com>
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Xref: news.eternal-september.org comp.lang.ada:21955
Date: 2014-08-28T10:03:31-07:00
List-Id: <comp.lang.ada>

On Thursday, 28 August 2014 18:28:15 UTC+2, Mike Silva  wrote:
>=20
> Maybe there is some confusion being caused by the term "OS" here.  Ada's
> concurrency and realtime functionality can run on top of an OS, but it ca=
n also=20
> run on bare metal (an "invisible" OS?).  The GNAT ARM Cortex M release do=
es=20
> have Ravenscar tasking on bare metal.

Thanks for chiming in here Mike. I was getting a bit worried, thinking I'd =
misunderstood all I'd read about Ada being able to natively run concurrent =
processes on the Cortex M.

> How could this be reworded to remove the "OS"?  A single-task or single-t=
hread design is not suitable...?

To get around the threading problem, a fellow collaborator (read C junkie) =
is trying out one of the free C RTOSs (www.chibios.org) and is starting to =
make some progress, although it has been tough going! Just getting a blinki=
ng LED took 3 days! Admittedly it was his first experience with an RTOS and=
 setting up an open source toolchain.

I take back what I said about JavaScript and loads of libraries! Today I tr=
ied to quickly get MODBUS communication going and failed. I couldn't find a=
 single one to use as a MODBUS RTU master :(

I must admit that I'm in a lot of doubt about the right way forward.