[HN Gopher] Foundations of Embedded Systems
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Foundations of Embedded Systems
Author : blindm
Score : 96 points
Date : 2021-01-10 18:24 UTC (4 hours ago)
(HTM) web link (f-of-e.org)
(TXT) w3m dump (f-of-e.org)
| lrossi wrote:
| Sorry to be off topic. Just want to say that the font used by
| this website looks terrible on my tablet. Why don't people just
| use a normal sans font?
| RMPR wrote:
| This is actually pretty great. I was looking for a way to dip my
| toes into low level stuff. After skimming a bit it seems very
| focused on hardware though. Out of curiosity how does it compare
| to https://jaycarlson.net/embedded-linux/ ?
| petee wrote:
| Check out "Introductory Microcontroller Programming" by Peter
| Alley (to be clear, not me.) for Wocester Polytech; I came
| across this by accident the other day -
|
| [pdf]
| https://web.wpi.edu/Pubs/ETD/Available/etd-042811-095908/unr...
|
| _Over the period of being the TA for these courses multiple
| times, I learned a great deal, but also noticed several
| recurring issues the students seemed to face. In addition to
| furthering my own knowledge on the care and feeding of
| microcontrollers, this thesis is an attempt to provide students
| with a resource to overcome some of their difficulties, to
| provide a better understanding of the hardware level operation
| of a microcontroller, and as instruction into improving their
| knowledge and code._
|
| edit: in addition, for really low level hardware, check out Ben
| Eater's series on YouTube building a breadboard 6502
| jimmyswimmy wrote:
| Most of what embedded is, is hardware. To build the low level
| software and drivers requires a detailed understanding of the
| hardware and its datasheets. It would be pretty hard to give a
| generic overview of the software side these days, because there
| is just so much out there. I mean you have the TI parts for the
| beagle bone which have a pair of microcontrollers on them each
| having access to the same memory as the main processor. There's
| the video processor on Broadcoms chip in the raspberry pi.
| Understanding any of the details of these components requires
| understanding most of thousands of pages of documentation. Most
| people wait for someone else to do it for them!
|
| In the old days the only peripherals were timers and ADCs. You
| could make a generic and useful tutorial for those. Not
| anymore!
| diydsp wrote:
| After a few decades in the biz I'm seeing things change.
| Almost all drivers these days are written. Embedded is more
| about integration. It's also interconnected with many web-
| based tools and operating systems.
| m-ee wrote:
| I wish all drivers were written. Aside from things like
| arduino/pyboard the choice in my experience has been using
| some massively bloated questionably tested vendor code or
| just going to the data sheet and writing it yourself.
| sircastor wrote:
| This is a bit of a side step to the article, but I recommend
| anyone who wants to really learn low level programming try to
| write a simple piece of software for the NES. The 6502 is well
| known, how the NES operates is likewise well known. Is not easy
| by any means, but I found it to be very rewarding and
| instructional to how computers work. Alternatively, following Ben
| Eater's 6502 computer videos is likewise instructional.
|
| I admit this may have had the effect on me because the NES had a
| special place in my childhood.
| user-the-name wrote:
| I would go for the GBA, which has a much more comfortable
| processor, and some very nice graphics hardware. It really hits
| a sweet spot for capability vs. constrainedness.
| molticrystal wrote:
| Or you could go from an even more fundamental level with a
| simple course https://www.nand2tetris.org/
|
| You build up a computer from simulated logic gates,
| constructing the ALU, CPU, Ram, I/O etc. The opcodes are
| comparable to those in the CPUs you mentioned, but you have the
| added benefit of the magic that occurs when it is able to
| process those opcodes. The best part is, thanks to the courses
| exceptional guidance and streamlining, it only takes about half
| a day or so to get it to that point.
|
| After that you can follow the rest of the course to making a
| compiler, etc. Or you could move to an NES emulator as you
| mentioned. The nand2tetris halfway mark would also be a good
| jumping point for the principles, compiler, and RISC equipment
| mentioned in the OP's course.
| hvasilev wrote:
| Why are so many videos not available until November 2021?
| ldx1024 wrote:
| Upcoming events. They are not doing the livestream until then.
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