AmpBenzScientist @AmpBenzScientist@qoto.org

Building Apache #NuttX RTOS for TinyEMU #RISCV Emulator

Article: https://lupyuen.codeberg.page/articles/tinyemu.html#appendix-build-nuttx-for-tinyemu

I don't think Metallica is my favourite metal band.

@AmpBenzScientist @rhempel @lupyuen
"A good Embedded System should operate without issue for many years."
Exactly. That is: it should operate completely unlike the steaming pile of turd that most software on this planet has turned into. (Despite all the abstractions and CI that supposedly was going to make it all better and has completely failed to do so.)

Embedded need to be lean, simple, predictable, reliable.

@xorbit

"Embedded need to be lean, simple, predictable, reliable." --> Sadly, that should be true for all software, but was sacrificed in the 1990s or so.
Big projects back then had "memory budgets", now in most projects we don't even know how much memory is required.

~1999, I ran a building automation system in Java, with a web UI in Java, attached (JServ back then) to a Apache webserver, on RedHat Linux with a fvwm95 desktop.... On 32MB of RAM!!

@AmpBenzScientist @rhempel @lupyuen

@niclas @xorbit @AmpBenzScientist @rhempel @lupyuen
and contrary to modern stuff, old software tends to still run just fine. fvwm still works, apache still works. can't say that of most modern software.

@BernieDoesIt

I grew up in extreme poverty that continued into adulthood. I lived in the ghetto, on welfare in section 8 housing in a home with my grandparents, cousins, uncle, and mother all in the same small home.

Thank you for the QED though regarding your own bias.

@jkxyz @scottsantens

Interesting fact of the day: A gravitational wave, having energy, also generates its own gravitational field in addition to itself. Though this field is insanely weak.

Note this is not the same as saying a gravitational field has its own gravitational field. It is only the wave that has energy, and thus its own field. A gravitational wave only occurs when an object with a gravitational field accelerates (and orbiting another object counts as acceleration).

In the 60s this would have been a starving lion. Scientists are slacking these days!

@lupyuen Wow. Responses like that explains why the industry looks the way it does.

🤔 "Why would any sane CS Grad switch to Engineering to do #Embedded Systems? ... I don't get how working with obsolete machines is anymore useful to learning how modern computers work than actually working on modern machines"

There was this mindset I had for the longest time — for most of my 20s and 30s — where I took the truth value of "reputable" or "authoritative" sources for granted and would vehemently defend them. I'm more prepared to reexamine and put up an argument against them now, because I've lived long enough now to see statements from such sources be proven wrong many times before. Also, you can have several "reputable" sources contradicting each other. There is a whole lot about life that isn't as clear-cut as claimed. Often quite serious matters too. People die because authority figures say things that are wrong.

@VoxDei

If i ever write a security question it is going to be "What is the 5th letter in the alphabet?"

One day, you — formerly a young hot shot computer programmer — will roll your eyes at the stuff the new hot shot computer programmers are doing. "WE INVENTED THAT 30 YEARS AGO AND IT WAS BETTER!"

Let's create a UART Driver for TinyEMU #RISCV Emulator on Apache #NuttX RTOS

Article: https://lupyuen.codeberg.page/articles/tinyemu.html#uart-driver-for-tinyemu

Sent this PCB to JLBPCB for fabrication. The parts aren't included, but we've got those, so they just need to be soldered on. One more step on the way to a fully functional control panel for the synthesiser.

"3D Printer Blobs" (Power-Loss Recovery / SD Card)

https://youtube.com/watch?v=ZM1MYbsC5Aw

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