@brouhaha@mastodon.social
@brouhaha@mastodon.social avatar

brouhaha

@brouhaha@mastodon.social

#microcontroller #firmware #FPGA #SDR (SW Defined Radio)
#retrocomputing
#nonpareil HP calculator simulation at microcode level
Maker (with John Doran) of Nixie tube RPN calculators
CHM PDP-1 Restoration Team
Damned dirty ape
Call sign N2ES
he/him
cis male
Not a tame programmer
in #Colorado, not far from #Denver

This profile is from a federated server and may be incomplete. Browse more on the original instance.

StillIRise1963, to random
@StillIRise1963@mastodon.world avatar

The attorney should have asked SCOTUS if it would be okay if the Executive had them murdered.

brouhaha,
@brouhaha@mastodon.social avatar

@noiseician @StillIRise1963 SCOTUS is trying to figure out how they can issue a ruling such that it only applies to right-wing presidents.

brouhaha, to random
@brouhaha@mastodon.social avatar

I'm looking for a copy (paper or scan) of:
I860 XP Microprocessor Hardware Reference Manual, 1992

Only interested in 1992 or later with "XP" in the title. The earlier hardware reference only covers the i860 XR.

This is not the Programmer's Reference or the Data Book.

whitequark, to random
@whitequark@mastodon.social avatar

IEEE 802.3 having a normal one

image/png

brouhaha,
@brouhaha@mastodon.social avatar

@whitequark @gsuberland
There is no "why". Windows is as Windows does.

brouhaha, to random
@brouhaha@mastodon.social avatar

Computers are terrible. I recommend against.

NanoRaptor, to random
@NanoRaptor@bitbang.social avatar

It appears I have radiation burns.

I spent an hour and a half with unsatisfactory shielding just minutes away from a G2V class fusion reactor.

brouhaha,
@brouhaha@mastodon.social avatar

@tubetime @NanoRaptor OSHA almost entirely ignores it!

lauren, to random
@lauren@mastodon.laurenweinstein.org avatar

I block neutrinos. And it's not easy.

brouhaha,
@brouhaha@mastodon.social avatar

@lauren Oh, just leave them be. They're only passing through.

ai6yr, to random
@ai6yr@m.ai6yr.org avatar

Anyone need a shrink wrapped, original MS-DOS floppies with COA?! 🤔 #dos #housecleaning

brouhaha,
@brouhaha@mastodon.social avatar

@ai6yr I have use for such a thing. I still use a genuine IBM PC (machine type 5150). I have an add-on floppy controller board to use newer floppy drives than the 5150 originally supported.

gewt, to random
@gewt@san-junipero.gimme-sympathy.org avatar

wow this household has transferred 17TB of data since september (mostly download but a couple tb upload)

i love collecting data

brouhaha,
@brouhaha@mastodon.social avatar

@foone @gewt Has anyone generated the "You wouldn't download a" image for that?

aeva, to random
@aeva@mastodon.gamedev.place avatar

you ever think about how "copy" and "paste" don't have dedicated keys on most keyboards

brouhaha,
@brouhaha@mastodon.social avatar

@TomF @aeva You mean I have to stop pedalling the bicycle every time I want to copy or paste?

sundogplanets, to random
@sundogplanets@mastodon.social avatar

Time to run my horrifying python code that builds a bash script that I use to repeatedly call some fortran code and make output I pull back into python for calculating telescope pointings.

My deepest apologies to everyone here who actually has training in making good software. I'm doing science!

(And no, I'm not looking for advice. Hilariously, this dumpster fire of code works well enough, and I don't need to improve it right now.)

brouhaha, (edited )
@brouhaha@mastodon.social avatar

@sundogplanets @VE2UWY
When making that mix, be careful not to get Forthon. The mix will be difficult enough without also having to use postfix notation.

RickiTarr, to random
@RickiTarr@beige.party avatar

I'm not distracted, I'm on a side quest.

brouhaha,
@brouhaha@mastodon.social avatar

@Crispius @RickiTarr
The quest is to find the sacred laser pointer and return it to its shrine.
To do so, you'll need to harvest the mystical catnip, and use it to gain the favor of the sage Siamese.
– R.

foone, to random
@foone@digipres.club avatar

I think my next project along the lines of VGAPride might be writing programs to display a trans pride flag for as many platforms as possible.
Like, a simple c64 program, qbasic, win32, js, etc.

brouhaha,
@brouhaha@mastodon.social avatar

@BRicker @foone AFAIK, never sold, so non-commercial, but the shortest useful CP/M program had a length of zero bytes. It usually went by the filename "GO.COM".

astrid, to random
@astrid@fedi.astrid.tech avatar

try four penicillins a day
you surely will not regret four penicillins a day

brouhaha,
@brouhaha@mastodon.social avatar

@astrid
You can't cut back on bacteria!
You will regret this!

gsuberland, to random
@gsuberland@chaos.social avatar

VUSB sucks. every device should buck-boost VUSB to get stable 5V.

brouhaha,
@brouhaha@mastodon.social avatar

@azonenberg @gsuberland How common is Vusb > 5.5V (without negotiating it)? How common are spikes above 5.5V?

I ask because it seems increasingly common for claimed 5V-tolerant chips to have an abs max rating of only 5.5V.

brouhaha,
@brouhaha@mastodon.social avatar

@azonenberg @gsuberland There are many USB protection devices intended to deal with Vusb fault conditions up to 24V (based on the original PD Vusb max of nominally 20V). But now PD 3.1 EPR can be 28V, 36V, or 48V nominal, so now protection needs to be good to somewhere over 50.4V.

What I was asking about was fault conditions where the source is in principle trying to supply 5V, but due to shoddy design or construction, actually providing more that 5.5V, or ripple or surges exceeding 5.5V.

brouhaha,
@brouhaha@mastodon.social avatar

@f4grx @azonenberg @gsuberland In my experience ports with a current monitor and switch seem rare. A lot of ports are perfectly willing to provide >2A without negotiation, and brown out rather than shutting down if there's really high current.

brouhaha,
@brouhaha@mastodon.social avatar

@f4grx @azonenberg @gsuberland I haven't any proof of 5V USB sources providing more than 5.5V, but then, I avoid buying cheap crap. I'd be very surprised if it wasn't the case that some of the cheap crap had little or no regulation, in order to save a fraction of a penny per unit.
Certainly the poor quality of cheap USB cables makes me not expect any better quality in any other cheap electronics products.

RFDave, to random
@RFDave@mastodon.social avatar

I might have a problem. Not enough time to study, but enough money to buy books.

brouhaha,
@brouhaha@mastodon.social avatar

@RFDave Is there a "Phase Locked Loops for Dummies" somewhere in the pile? I need that one.

whitequark, to random
@whitequark@mastodon.social avatar

looks at Lattice devboard dated 2019 why did they go back from micro-B to mini-B?!

what on earth would possess somebody to put a mini-B connector on a new devboard from 2019? did they run out of micro-B's and found a crate of mini-B's? did they get a kickback? so few options

brouhaha,
@brouhaha@mastodon.social avatar

@whitequark
Mini-B, philosophically, must ipso facto Micro-not-B
[with no apologies to Monty Python]

I still have entirely too many things I still use that have the wretched Mini-B. I never can find an A to Mini-B cable when I need one. Sigh.

brouhaha,
@brouhaha@mastodon.social avatar

@whitequark The last time I needed a mini-B cable, I dug around in drawers and boxes until I finally found one. Then when I tried to plug it in, discovered that it wasn't, even though it looked identical. It won't actually fit any if four devices I tried it in.
The cable must have come with something that needed it, but I don't know what. If I threw the cable away, I'd immediately find out.

whitequark, to random
@whitequark@mastodon.social avatar

answers from electrical engineers and FPGA/ASIC designers only: any strong preference towards using "combinatorial logic" or "combinational logic"?

brouhaha,
@brouhaha@mastodon.social avatar

@whitequark Up until now I've used combinatorial, but I don't want to choose. I'll start using combinationatorial.

astrid, to random
@astrid@fedi.astrid.tech avatar

i just hot-unplugged a hard drive and felt it wobble in my hand from the momentum of the spinning disk and it felt kinda cool

brouhaha,
@brouhaha@mastodon.social avatar

@astrid My new file server has 11 4TB SSDs in a raidz3, and a 12th drive as a hot spare.
And I'll migrate the spinning rust over, as I use it for media.

brouhaha,
@brouhaha@mastodon.social avatar

@astrid I thought about that quite a bit. My new array is replacing a 12TB (usable) array, so I decided that 32TB gives me enough headroom, since media files will still go on spinning rust.

astrid, to random
@astrid@fedi.astrid.tech avatar

i remember 2011

brouhaha,
@brouhaha@mastodon.social avatar

@astrid I ca remember many things that have happened in my life as if they just happened yesterday. Sadly, yesterday is no longer one of them.

whitequark, to random
@whitequark@mastodon.social avatar

girl who interprets "the Intel architecture" to refer to iAPX 432

brouhaha,
@brouhaha@mastodon.social avatar

@whitequark Same except guy. Still slowly working toward actually running a 442 GDP.
Also the i960XA, Intel's RISC-based capability architecture. Generally the same object types and operators, but a better memory model. Sadly they failed to sell the XA except to the US military.

  • All
  • Subscribed
  • Moderated
  • Favorites
  • •
  • megavids
  • thenastyranch
  • rosin
  • GTA5RPClips
  • osvaldo12
  • love
  • Youngstown
  • slotface
  • khanakhh
  • everett
  • kavyap
  • mdbf
  • DreamBathrooms
  • ngwrru68w68
  • provamag3
  • magazineikmin
  • InstantRegret
  • normalnudes
  • tacticalgear
  • cubers
  • ethstaker
  • modclub
  • cisconetworking
  • Durango
  • anitta
  • Leos
  • tester
  • JUstTest
  • All magazines
    •