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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. whitequark‏ @whitequark 25 Mar 2020
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      Replying to @rqou_ @marcan42 @11rcombs

      at this point you could implement a VM for something sane in PIC assembly and just switch to programming that

      2 replies 0 retweets 11 likes
    2. Hector Martin‏ @marcan42 25 Mar 2020
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      Replying to @whitequark @rqou_ @11rcombs

      Like Brainfuck.

      1 reply 1 retweet 6 likes
    3. R. Ou‏ @rqou_ 25 Mar 2020
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      Replying to @marcan42 @whitequark @11rcombs

      avr emulator on pic? :trollface:

      2 replies 0 retweets 4 likes
    4. R. Ou‏ @rqou_ 25 Mar 2020
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      Replying to @rqou_ @marcan42 and

      If I decide that I hate myself enough to actually try to do this, what is the most usable PIC devboard in the current decade?

      2 replies 0 retweets 1 like
    5. Andrew Zonenberg‏ @azonenberg 25 Mar 2020
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      Replying to @rqou_ @marcan42 and

      To be fair, they're talking about 8-bit PIC. The 16-bit families (PIC24/dsPIC3x) are a much saner register based architecture. And PIC32 is just MIPS.

      2 replies 0 retweets 0 likes
    6. Hector Martin‏ @marcan42 25 Mar 2020
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      Replying to @azonenberg @rqou_ and

      The thing is there is zero reason to use a dsPIC or a PIC32 over some random ARM as far as I can tell. And I wouldn't call dsPIC "sane"... I tried using them once...

      3 replies 0 retweets 2 likes
    7. Jamie Craig‏ @james_a_craig 26 Mar 2020
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      Replying to @marcan42 @azonenberg and

      Price. Bottom end PIC is still worth using when you need a CPU that’s <$0.30 in lowish quantities.

      1 reply 0 retweets 1 like
    8. Hector Martin‏ @marcan42 26 Mar 2020
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      Replying to @james_a_craig @azonenberg and

      If you need a really cheap micro though, you go for chinese stuff. And dsPICs certainly aren't $.30, more like $1.80 all the way up to $10+. At that price point, just use ARM.

      1 reply 0 retweets 2 likes
    9. Jamie Craig‏ @james_a_craig 26 Mar 2020
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      Replying to @marcan42 @azonenberg and

      Absolutely. Can’t think of any reason at all to use the dsPIC. For the really cheap chinese stuff, there’s a weird gap where ordering 20 is fine but order 400 and suddenly you end up in lead times from hell. A lot of what I do is exactly in that range.

      1 reply 0 retweets 1 like
    10. Jamie Craig‏ @james_a_craig 26 Mar 2020
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      Replying to @james_a_craig @marcan42 and

      Sorry, realise now that I’m basically just agreeing with your original comment. 😅 My comment was more for the thread as a whole rather than directly in response to your point about dsPIC. You’re right.

      1 reply 0 retweets 1 like
      Hector Martin‏ @marcan42 26 Mar 2020
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      Replying to @james_a_craig @azonenberg and

      Tbh, I think the entirety of the PIC24/dsPIC33/PIC32 market is literally engineers who learned on PIC16/18 and can't or won't learn anything else, who Microchip managed to dupe into thinking their other lines are more familiar than an ARM would be, because they're called PICs.

      1:21 AM - 26 Mar 2020
      4 replies 0 retweets 0 likes
        1. Hector Martin‏ @marcan42 26 Mar 2020
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          Replying to @marcan42 @james_a_craig and

          Heck that's why *I* tried dsPIC once. I just saw all the bullshit and ran far far away after that one attempt.

          0 replies 0 retweets 0 likes
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        1. R. Ou‏ @rqou_ 26 Mar 2020
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          Replying to @marcan42 @james_a_craig and

          The project I was briefly involved with was using a dsPIC for literally this reason

          0 replies 0 retweets 0 likes
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        1. Jamie Craig‏ @james_a_craig 26 Mar 2020
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          Replying to @marcan42 @azonenberg and

          I’d agree with that. It’s not even like the I/O structures are that similar; no 5V tolerance on a lot of them. There was a brief window while there were no 5V tolerant ARM chips at reasonable price but even that’s gone.

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        1. Thomas Daede‏ @enginetankard 26 Mar 2020
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          Replying to @marcan42 @james_a_craig and

          They have a very large educational presence as well. Very much the MATLAB of microcontrollers.

          0 replies 0 retweets 2 likes
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