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From: Kevin Chadwick <kc-usenet@chadwicks.me.uk>
Newsgroups: comp.lang.ada
Subject: Re: Should light runtimes get more consideration?
Date: Fri, 29 Sep 2023 09:59:37 -0000 (UTC)
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>>>> Tasking is very limited. For example you can't use
>>>> timeouts. Never. They propose a workaround but it is complex and not
>>>> equivalent to a real timeout management.
>>>
>>> Not sure what a "real timeout management" would look like?
>>>
>>>> I'd like to have a full Ada RTS for embedded targets, like on
>>>> desktop.
>>>
>>> Have you considered using something like a Raspberry Pi?
>> A RaspberryPi is a computer (based on a microprocessor with an OS), not 
>> an micro-controller. It consumes a lot of electrical power. The OS 
>> (linux) is not real time. It uses a lot of board space. The processor is 
>> a proprietary black box...
>> 
>
>Plenty use the Raspberry Pi as a microcontroller

I think Simons point was that Arm/Linux has a working full runtime. I guess
 bare raspberry pie would not and I guess it would be a rather large module
 or board or single board computer depending on the model.

WRT energy use. I use a low power run feature on the STM32L4 which means the
 system clock speed can change at any time. That seems to be incompatible
 with any runtime that I have seen except the minimal light-cortex-m4 one. I
 assume working with clocks is more scalable than working with runtimes but
 I do not know for sure.

-- 
Regards, Kc