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• Embedded Systems Hack Chat Transcript

  Jordan Bunker • 09/08/2017 at 20:34 • 2 comments

  Shulie Tornel Alrighty, let's begin! @elecia Can you please give us a short introduction about yourself?

  Elecia White I am an embedded software engineer, been at it for awhile (20 years+). I've worked on DNA scanners, toys for children, gunshot location systems, and a bunch of other neat stuff.

  Elecia White I wrote Making Embedded Systems (published by O'Reilly), I host a podcast called Embedded.fm, and I edit and write for the Embedded.fm blog.

  Elecia White I really like making things but I tend toward products more than my own projects.

  Elecia White (Do I just go on until one of you asks a question?)

  Shulie Tornel I'll pull questions from the sheet

  Elecia White Currently, I'm an embedded software consultant for my very own company, Logical Elegance.

  Elecia White I think Taako had some good questions...

  Shulie Tornel Thanks so much, @elecia!

  taako.magnusen :)

  Shulie Tornel We can start with his first, if you'd like

  Shulie Tornel @taako.magnusen : Do professional embedded systems developers use the libraries provided by vendors such as the STMCube/STL or TI's peripheral libraries and if they don't do they reimplement everything from the register level?

  Elecia White (I mean, of course, there were lots of good questions but Taako's were ones I wanted to answer.)

  Elecia White Yes, we use the HALs when we can.

  Elecia White It saves us from having to learn the depths of every chip... mostly. You do have to be aware that the HALs are example code as much as usable code.

  Elecia White Reading the HAL is a great way to understand the chip better but sometimes they have bugs. So treat it as partially-tested code and be a little wary.

  Elecia White They are getting better so someday my answer will switch to an unqualified yes. But we aren't there yet.

  Shulie Tornel @Muriel Green has a quesetion about a project:

  Shulie Tornel "I have an arduino prototype that I want to slim down to only necessary components. Other than teaching myself EAGLE and designing a PCB, what else should I look for or learn to transition this product from arduino to something mass-producable?"

  Julius (Mr. Seeker) I consider that a good question. I have heard that one a lot at the hackerspace

  Elecia White Yeah, I saw that one. :) I think that requires a book to answer. Let me think what I can say that can be useful but not discouraging.

  Lucas Rangit MAGASWERAN I have a similar question: How do you learn how to take a reference design (dev kit) and make a custom board with it? Is there a good resource that can teach just enough to get it done quickly, since you're just "copy pasting"?

  Elecia White When I think of mass-production, I usually assume closed-source

  Elecia White And that is where Arduino runs into problems... once you start selling things the licenses need to be reviewed.

  darryln Reimplement without Arduino, from bare metal.

  Elecia White So yeah, the hardware is part of it but I worry more about my software (note: my background is more software than hardware so this should be taken with a grain of salt)

  Julius (Mr. Seeker) using the arduino libs?

  Elecia White reimplement w/out Arduio from bare metal is often too big of a project so how do you find a space in between

  Elecia White You can use most of the Arduino libs as libs as long as you don't mod them. (LGPL)

  Elecia White https://choosealicense.com/licenses/

  CHOOSE A LICENSE

  Licenses

  Non-judgmental guidance on choosing a license for your open source project

  Read this on Choose a License >

  Marko Shiva Pavlovic Hello @Elecia White

  Boian Mitov Read the library license. Most open source libraries are permissive for closed source products

  Lucas Rangit MAGASWERAN Is starting a consulting service that takes Arduino prototypes to production a viable business?

  Elecia White So that link is for Choose a License and it breaks down some of what you can and can't do for different ones.

  darryln bookmarked

  Marko Shiva Pavlovic Yes including GPLv3 except maybe AGPLv3

  Elecia White I don't know about "most...

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