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I've been trying with no luck to read data off of a couple of different SPI devices.
It turns out, the documented API for doing SPI with the ESP-IDF is not very capable.
There is a lower level API that both the higher level API and the Arduino framework layer are built on top of. It is undocumented.
Worse, it's Apache licensed, meaning just for me to figure out how it works, I get roped into their licensing scheme because I have to look at their code and make something based on it.
It does me no good if you build layer upon layer of API and then hamstring the top layer and don't document the lower layers.
And now I get to go cave diving. Here there be dragons. 
Real programmers use butterflies
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🐉🐲🐉
Does the recent case with Oracle and Google(?) exempt you from this licensing scheme? I thought it was decided that an API couldn't be copyrighted, just its implementation. Regardless, it is bizarre for an API to infect users with an undesirable license.
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It's only if I understand the license properly and because I'm essentially forced to create a derivative work in lieu of documentation. I'm not sure how that court case impacts this.
Real programmers use butterflies
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You can always bit bang the SPI.
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I'm basically resorting to something like that, but for production I need to use the hardware SPI controller w/ DMA for performance reasons. I think I can get there with my current route, even though it's not ideal.
Real programmers use butterflies
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Don't forget about the Orcs and the Uruk-hai. 
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One token-ring to rule them all?
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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honey the codewitch wrote: And now I get to go cave diving. Here there be dragons.
Trolls. Dragons are at the edge of the world. 
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Fear not!! As a fan of The Hobbit, I know the ogres were turned to stone and Smaug is dead.
Actually, best of luck!
__________________
Lord, grant me the serenity to accept that there are some things I just can’t keep up with, the determination to keep up with the things I must keep up with, and the wisdom to find a good RSS feed from someone who keeps up with what I’d like to, but just don’t have the damn bandwidth to handle right now.
© 2009, Rex Hammock
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"Asdfg". "Hjkl". "Uiop". Do girls love it when you talk Qwerty to them?
"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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a-ZERTY-nly not!
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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Your just ribbon us, right? I mean, that type of humor is expected around here. ROTCT (Roller on the Carriage, Turning !
| Ravings en masse^ |
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| "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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I can't remember the last time I saw a dot-matrix printer, to say nothing of an ASR-33...
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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We don't serve your type here.
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OG - you are a font of wisdom!
If you can't laugh at yourself - ask me and I will do it for you.
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Well it amazed me ...
I'm trying to do Daily Objectives every day (got the 7-in-a-row award yesterday!) but one of today's was "Recruit a member to your MC" and since I have no friend who play computer games I was a bit stuck.
So when at last I asked a random member if he'd mind joining for 30 seconds and he said "Sure! I'll finish this heist prep and get back to you" I was gobsmacked!
And he did - so now I have 8 days in a row! Only 20 to go for the "big reward" but I doubt that'll be possible - at least one is going to require me to buy a submarine or something ... 
So it's true: not everyone playing GTA V is a griefer on an Oppressor II!*
* Just most of 'em.
"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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OriginalGriff wrote: since I have no friend who play computer games
If they play computer games, they have no time to be friends. 
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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This is true ... 
I try though!
"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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I'll sell you a submarine
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For the record, I actually own a small Personal Submarine Company
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That's different! Out of interest do you sell many? I'd have thought they were a very expensive toy that wouldn't get used much?
"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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Actually, the business has been defunct for a few years. We sold over 800 back in the 80's and 90's.
They are expensive toys, much more expensive now than then. We used to go to trade shows all the time with them, and would sell an average of 6 per show, so it was a lot of fun.
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One of the greatest things about being a one-man-band is that I never, ever have to do trade shows again!
Gawd I hated them - the worst was Interpack in Dusseldorf - absolutely massive show, about 200,000m2 of stands, 3000 odd exhibitors, open for at least a week (and the locals bring their kids round at the weekend, damn them) it was ten days in a German Hotel, eating out (with distributors / large customers) every night, and busy, busy, busy from opening to closing. Never sold a thing at the show - we were looking to expand / replace our international distributor network. And as Technical Manager I had to be there and talk to anyone.
Sheer hell to be on the stand, but boy was it worth it - some of the distributors we picked up sold shed loads!
"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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