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*headdesk*
I've been spending all day woolgathering on the subject of cooperative vs preemptive multitasking on microcontroller systems - particularly those with slow or absent JTAG support.
I saw your post and was like "oh goody! an excuse to nerd out with Daniel on the subject"
And then of course, it was something like Garfield. And now I'm got a cavalcade of observations about multitasking banging around in my noggin with nowhere to go. 
Oh well, I should probably be working. 
Real programmers use butterflies
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Some microcontrollers do not have RTC support or any other kind of timer-like tick coming in so cooperation seems like the best option for them. I seem to remember an article or two here on that topic.
Yes, there are a few : Search Results[^]
"They have a consciousness, they have a life, they have a soul! Damn you! Let the rabbits wear glasses! Save our brothers! Can I get an amen?"
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I've also found that introducing multithreading into a system you already can't debug using a traditional debugger is a recipe for a nightmare in practice.
What I've done on this dual core monster I am working with is I keep exactly two threads - each with its own core affinity, and they basically do very little communication with each other, and all of their work is internally cooperatively multitasked.
It doesn't have an RTC per se, but like most CPUs it has a timing crystal connected so you can get the number of milliseconds since boot with it. I use that to make timers.
static uint32_t tickTS=0;
void loop() {
if(millis()-tickTS>=1000) {
tickTS=millis();
Serial.println("One second elapsed");
}
}
You can even wrap that to turn it into a callback. or whatever.
but i do all my cooperatively multithreaded code such that if i have to make a time delay for example, I use the above mechanism to avoid blocking. I do this on the code for each of the threads/cores.
Real programmers use butterflies
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I have a similar issue. I have a big bunch of code to debug that needs to run on a GPU. I have written it so it can also run on the CPU so I am doing all my initial debugging on the CPU and then I'll try it on the GPU. I have already tried small bits on the GPU and it looks good so far.
"They have a consciousness, they have a life, they have a soul! Damn you! Let the rabbits wear glasses! Save our brothers! Can I get an amen?"
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I did something like that with my JSON(C++) library. I wrote it on a desktop and it made it work only to ultimately port it to run on devices as meager as 8-bits and 4kB of RAM.
To make things even more gonzo the entire thing is a port of a JSON parser I wrote in C#.
Real programmers use butterflies
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Reminds me of the main character in the novel "Barkefletteren" (1913) by Norwegian author Gabriel Scott, who remarks (not my translation!):
"Sometimes I sits and thinks, and sometimes I just sits".
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Enjoy a bit[^] from the golden age. . . . or is that "for" the golden age?
| Ravings en masse^ |
|---|
| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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Whose golden age?
Word here is, we should abandon the term; it implies we did good, while we traded in slaves.
We did. Our "golden age" coincides with the age of piracy.
As far as the colon blow, all you need is add a lot of oil to a dish, not fibers. Like a whale, if you want the analogy.
Bastard Programmer from Hell 
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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It was a double entendre.
The first instance referring to the golden age the the TV comedy "Saturday Night Live" and the second golden age referring to one's very senior years, hence, referring to the 'for' golden age.
Have some prune juice; sit down; relax -🚽 - it will clear your mind and you'll feel better by morning.
| Ravings en masse^ |
|---|
| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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If your mother promises you Eggs Benedict, will you go home for the Hollandaise?
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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eggstatically, and I wouldn't think muffin of it.
Real programmers use butterflies
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Eggclent play on words - eggscluding eggstream implications.
From what I hear, an omelet is basically a short period of mediation.
| Ravings en masse^ |
|---|
| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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eggcellent commentary, yes I get the yolk .... just keep shelling them out, they aren't all they cracked up to be.... as for me, not another flocking word on this ..
Cegarman
document code? If it's not intuitive, you're in the wrong field 
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Where did you poach that from? You should take a break fast!
"the debugger doesn't tell me anything because this code compiles just fine" - random QA comment
"Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst
"I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle
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As long as it is the mother of haute-cuisine sauces
and we can watch movies with Dirk Benedict 
modified 22-Feb-21 15:06pm.
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I doubt that the egg or the bacon consider themselves blessed...
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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OriginalGriff wrote: Hollandaise?
Still would prefer that over any "full" English breakfast.
Bastard Programmer from Hell
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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I really get annoyed by drive-by 1-voters...
".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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I completely agree.
However, in the past when I've tried to explain my one-vote (nothing of yours I hasten to add!) I've sometimes been hit by "revenge down voting" - which is frankly quite funny
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I'll never get used to it. I don't think the most recent instance is a revenge thing, because I haven't been especially harsh to anyone recently (at least, not intentionally). I don't know if down-voting is weighted like up-voting is, but it was a 5-point hit.
I'd like to think that if it was from an established user, they'd at least show some respect and let me know where I went wrong.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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Personally, I think the ratings should go away in favor of a praise/recommend button, and rating based article ranking if any, be based around those.
That way you effectively remove downvotes, which if you think about it don't contribute to the community nor rarely foster improvement - and never when they aren't accompanied by comments.
Comments are where improvements get suggested effectively. 1 star votes are just a way to crap all over other people.
If I think your article needs improvement, I'll write a comment. I usually vote 5 stars if I vote. I'm leery about giving 4s because I don't like dinging a perfect score, but if it's already not perfect, I'll consider a 4 vote in lieu of a 5, if i think there's room for improvement.
But like I said, i think the ratings system is not ideal in the first place, and should be replaced.
Real programmers use butterflies
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I suggested this several years ago. I think an "is useful" and/or "is recommended" flag(s), possibly factored by the number of views/bookmarks/downloads could be used to generate a 1-5 "score". Granted, the factoring of the the views/bookmarks/downloads could be gamed by those truly desperate for reputation points, but I think that's a very minor concern, especially if the factoring has a slightly less than significant impact on the score.
As significant as articles and Q/A are with respect to the site's purpose, something needs to be done to convince that continuing participation in the system is a "good thing" (TM).
In light of the lack of accountability for down-voting, it might be a viable idea to show who voted and what they voted.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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I totally agree. I'm roping @chris-maunder in here just so he can see this, because I think he deserves to know.
I've mostly not been contributing lately due to work, but the other not-insignificant thing that has happened is I think I picked up my downvote troll again, or a new one (i'm still not sure - i need to post 3 articles or so in quick succession once I get time to write them and see what happens)
But getting downvoted puts me off, because I put a ton of effort into my articles, and then all it does is sink my overall article rating which right now is really good.
And I wouldn't even care, but for the fact that I *have* an article rating in the first place.
My point is, I'd be more likely to contribute if we *didn't* have that feature, especially if I'm writing something i think is vital but niche, so won't be very popular, but will be a godsend if you need it - at least that's my goal with a lot of my content. But if it's getting downvoted and perhaps even deranked by drive by critics who won't even tell me why, it leaves me with nothing but a net loss for my time and effort, and perhaps - worst case - (though i don't know if it impacts SEO) makes it less likely for someone to find the content if they need it later. What's the point?
Like I said, I'm with you, JSOP. A "recommend" button or something like that in lieu of the star rankings seems better for the community.
Otherwise, if one goes with 5 star rankings on their site, i personally think they need to justify to their project the use of "downvotes." for the good of the project - what they add to the community, to the site, and to its content. Just my $0.02
Real programmers use butterflies
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