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Understand. Got it. Hardware can be a bear sometimes.
Mostly a hobby which I gave up because of space and time.
"A little time, a little trouble, your better day"
Badfinger
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jmaida wrote: Hardware can be a bear b1tch sometimes.
FTFY
M.D.V. 
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
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honey the codewitch wrote: the same way Kraft Singles are Cheese-ish - you knew what it was trying to be, but no. Just, no.
eloquent !
![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
«The mind is not a vessel to be filled but a fire to be kindled» Plutarch
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#Worldle #546 1/6 (100%)
🟩🟩🟩🟩🟩🎉
https://worldle.teuteuf.fr
"A little time, a little trouble, your better day"
Badfinger
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I placed a single Amazon order with 4 different items. At check-out I checked the box indicating that they can delay an item if needed to reduce boxes / shipments. Nevertheless, they proceeded to create 4 different shipments - OK, probably coming from 4 different warehouses. Now I get to watch status updates as the Amazon and USPS wheels spin gears grind.
Shipment 1 - Started at a warehouse about 100 miles away. By Wednesday it arrived at a hub about 30 miles away with an estimated delivery of Thursday (a day early). Then I got a "Delayed in transit" status and no Thursday delivery. It's now at a hub 150 miles away with a "An address redirection agreement is in place between the customer and the carrier. Package will be forwarded to the requested address." status.
Shipment 2 - Started at a warehouse 1500 miles away and arrived at my local post office this morning where it met up with shipment #3 (see below).
Shipment 3 - Started at a warehouse about 30 miles away and arrived at my local post office this morning where it met up with shipment #2. Both items are now at a hub or post office (its unclear) about 90 miles away.
Shipment 4 - I just got notice of the label being printed. Bezos only knows where this one will travel.
 I usually have pretty good luck with Amazon deliveries but this one has gone completely sideways. Its a good thing none of these deliveries are time sensitive.
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I just use the free next-day delivery, and it's usually here about 13:30 ~ 14:30 the following day.
"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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Oh, this is obviously Amazon's Game Day Challenge Bonanza!!, where you and special someone could win a trip to.....Hawaii!
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This isn't a criticism, just an observation: There are no "real"" articles on getting going with embedded here at codeproject.
For example, I just searched for Devicetree - a declarative format for configuring hardware for an operating system like Linux and ZephyrOS. I found one result - an interesting little linux driver that implements a loop back of some sort.
Nothing really on using ST's HAL, or NXP's offerings, or even the VS Code extensions by Nordic Semiconductor.
On one hand, that's fertile article territory.
On the other, codeproject is in good company in this respect.
If you intend to practice the black arts of commercial embedded, you will eventually need to know these things, only to find out that
A) After sitting through 30 minutes of a how to video you notice it won't support your hardware
B) Google laughs at your search queries. Laughs in your face. Try googling how to do SPI with CMSIS. You'll find two useful article with code and concepts, both for a particular semiconductor vendor you don't use. I've already looked.
C) Try using Cube. Just try. If the screen doesn't stop repainting for you 5-10 minutes in, you're a luckier person than me. And even if you get past that, you still have to learn how to use it
D) Everything else is courses and academies.
Regarding D: I really don't do well with that format. I test well, but only if I can figure out how to learn something on my own before the test is due. That worked in high school. It won't work here. I need better options.
I'm on a discord about this. And I've been in my element banging away at ZephyrOS. I may just have some codeproject articles on this eventually.
Of course that's what I said about getting an OSless setup running on an ARM Cortex A before I gave that up.
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
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Completely agree. In the middle of looking at a number of technical issues - all related to Microsoft. I'm sure they answered the question somewhere, but there are so many answers and so much clutter it's useless - that's on Microsoft's site. Going through google, it gets even worse. A full page of responses that are all paid advertisements but no information.
The embedded world is somewhat of a microcosm. I have found most of my information from the tool vendor forums and occasionally reddit.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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Have you asked ChatGPT? 
I just asked it "how to implement SPI with CMSIS"
and it gave a lengthy answer including some stub code examples in C/C++, but here:
Quote: Initialize CMSIS:
Include the CMSIS header file for your specific microcontroller in your project. For example, for ARM Cortex-M microcontrollers, you can include "core_cmX.h," where "X" represents the Cortex-M version.
Configure SPI Registers using CMSIS:
Access the SPI registers using CMSIS structures and configure them accordingly.
Is where I suspect it could be less vague. 
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Like Microsoft documentation - technically correct, but practically useless.
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
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History has taught me not to go beyond the crayons.
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We're relying on you to lead the way, to give us some direction! You are the CodeWitch - All Hail The CodeWitch!
Someone has to go first, young lady, and you have a healthy head start on the rest. Lead the way, start filling that void, and claim the fame you deserve.
Will Rogers never met me.
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I am busy zephyrizing a bunch of my IoT ecosystem in order to have some fundamentals to work with
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
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I'd be curious after all the optimization, how portable the code is from project to project. My experience has been that unless you are solving a very specific/generic problem, code reuse doesn't happen. The concepts are transferred but not the code itself.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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I just got it working.
uix on zephyr os - YouTube[^]
That uses much of my ecosystem. Not the drivers. I can't really write zephyr drivers as part of my ecosystem because of the way it initializes globals in C++ - it does so after the drivers are initialized, so you cannot use C++ to write the drivers.
On the other hand, I've been looking and most of the ones I've written are either already written, or a variant is written that can be easily modified.
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
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so, lead the charge ?
isn't there a yuge bunch of makers, bloggers, etc., around Arduino, etc. ? lots of competition in the industry, and many manufacturers targeting hobbyists, researchers ?[^]
Your frustration comes as you struggle to make your graphic/imaging facility (high quality font and image rendering ?) work with newer, less known, boards ... with smaller image/font displays ?
Please leave more clued on the path to the rabbit hole 
cheers, bill
«The mind is not a vessel to be filled but a fire to be kindled» Plutarch
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You can't really make proper embedded devices with Arduino.
Embedded involves like ZephyrOS, embedded linux, or FreeRTOS. It involves pulling your hair out because you spent the day trying to get SPI working only you didn't read paragraph 3, page 1059 of the hardware reference manual's errata which tells you that SPI won't work at the clock speed you're running at due to a hardware bug.
That's embedded. 
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
modified 23-Jul-23 2:03am.
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got it, thanks: imho, your definition of "embedded" is critical to your work, and, i don't get ... that 
advice ?: if i wanted to find a low cost limited functioning robot kit i could cover with my own design cover, that i'd then send commands to by bluetooth ... imagine a small robot dog ...
where would you look ?
thanks, bill
«The mind is not a vessel to be filled but a fire to be kindled» Plutarch
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Honestly, Amazon has a pretty big selection of them. You'll have to get creative about designing a cover for one, but it's a start
Amazon.com : arduino robot[^]
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
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Does this mean you are a pioneer? I think it does.
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Oh plenty of people do embedded. They just aren't talking. 
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
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So you aren't Lewis and Clark, but you could be Laura Ingalls ...
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Maybe they are talking, but in more specific forums.
Such as for the Nordic Semiconductor chips: There is quite some traffic at Nordic DevZone[^], bur aimed at those developing for Nordic chips.
Yet you might be able to pick up some useful tricks, if you work with ARM based chips and Zephyr. Lots of issues relate to Zephyr and ARM, not specifically to the Nordic implementation.
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In the later half of my embedded career, I was pretty much locked into using TI DSPs. Our 911 products did lots of audio processing (one product had 23 audio channels). TI has lots of samples for their DSP products and since they have a fair number of ARM processors, I'd bet they have samples for them too. You might want to check them out. They also have cheap dev boards where you can try things out.
The only ARM project I worked on was using an ARM7tdmi. It's been around for a long time so it was fairly easy to find sample code on the web.
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