Neywiny

34 ms·

751.
by Neywiny 2y ago
3v 225 mAh is not what it pulls. That's the battery rating. "Pulls" refers to the current at a voltage. For example, you may say that it pulls 100 uA at 3v. So, first step is to measure what it actually pulls. Ideally profile
752.
by Neywiny 2y ago
Out of curiosity, now that there's external MRAMs and internal MRAMs in some processors, what else are you waiting for? It's certainly not everywhere like NOR but it's making it
753.
by Neywiny 2y ago
I guess I'm just not understanding the minimum subtraction example. They claim it only loops through the array once, and I see that in the code, but I don't see how that's possible. In Python land I can certainly do [x - min(
754.
by Neywiny 2y ago
I keep accidentally tapping "flag". This is a good reminder but I do occasionally go back and unflag them. My bigger concern is that the act of flagging does something that's not just being flagged.
755.
by Neywiny 2y ago
Yeah I don't know enough rust to know what's special here. Presumably the inverse backwards part. I retain that every project (language, application, etc) should start with what it is, what it looks like (code or screenshot as app
756.
by Neywiny 2y ago
Feels like the only benefit is not having to write os.system(). Though maybe including shell scripts (like build environment setup stuff from other software) for more complicated commands? I may give this a try for a bit to find out
757.
by Neywiny 2y ago
That's why I like where I am. We usually work in really lean teams. One person in each role. And usually we're making a physical product so that's one mechanical, one electrical, one sideways, etc. Has its downsides but I don
758.
by Neywiny 2y ago
If I were a betting person I'd bet that the sha1 instructions and the openssl instruction map to similar enough uops. Unsure if there's a way to check, but that's my understanding of the thousands of instructions in modern pr
759.
by Neywiny 2y ago
I'd never seen this before but it is interesting. For the uninitiated, it has performance much higher weighted than others towards that metric. However, it only beats the GPUs. Looks like the more datacenter or professional cards com
760.
by Neywiny 2y ago
Not that Java is dead but that is reminiscent of the futurama professor invention of translating one dead language into another.
761.
by Neywiny 2y ago
Yep. So considering I've never bought anything from Google directly (even my current phone, a pixel, was free from my carrier), they have no reason to care about my disgruntlement. Not like there's a Maps Pro or anything.
762.
by Neywiny 2y ago
Sadly typical for Google. They have a long history of removing opposing voices instead of listening. Notable examples are YouTube removing dislikes, forcing old videos into shorts, and allowing disabling of comments. Also Google play removi
763.
by Neywiny 2y ago
I think even better than functions it can optimize out data sections too. For example if I declare a huge array and don't use it, it doesn't show up in the binary. Not always true but the are times it is.
764.
by Neywiny 2y ago
Sadly that display controller MISO thing is notorious. I first ran into it a few years ago. The recommendation was to use a tristate buffer on the chip select line or, as you did, separate the buses. I also run into the power domain issue a
765.
by Neywiny 2y ago
I've heard that null pointers were greatly regretted. My favorite example of their issue is that there exists embedded devices with memory at address 0. Even worse, it's ITCM (instruction memory) so one might think that on startup
766.
by Neywiny 2y ago
Yes but would you call what that person did engineering? I certainly wouldn't.
767.
by Neywiny 2y ago
It's a bit offensive, tbh. Hallucination is because LLMs can't think and don't operate on facts. To even suggest engineering is that haphazard shows a clear lack of understanding of engineering. I've had LLMs hallucinate
768.
by Neywiny 2y ago
They already learned that lesson with airforce one. Unsure on the timelines of them, but agreeing with others that it's the wrong lesson to learn. FFP can be done well. They are not doing them well.
769.
by Neywiny 2y ago
I have no experience with the last 2 companies you mentioned. Do they have the kind of eFPGA IP I've seen sometimes or do they only make CPU or fixed logic designs? The FPGA in the rfsoc has a lot of logic and DSP resources. It'
770.
by Neywiny 2y ago
I noticed this maybe a week or so ago. I used that functionality extensively for computers without network access and was very confused. Saw some SO answer about it being a Windows vs Linux thing, which is stupid for a browser but whatever.
771.
by Neywiny 2y ago
Might be interesting to see this combined with vex. Also nice to see the recognition that memory bandwidth is an important consideration.
772.
by Neywiny 2y ago
Safe is a multifaceted term. Essentially these storage media (I'm more experienced with solid state but HDDs may be included) the probability the data you wrote is the data you read is a function of how many program/erase cycles,
773.
by Neywiny 2y ago
I'll admit like others I'm more C biased. This whole debugging story is not very flattering. Tbh my team would not be happy if I told them I didn't 3-4 weeks on something because I used an unsupported language, library, debug
774.
by Neywiny 2y ago
An interesting note on the making a PowerPoint out of a folder of pictures. That isn't a task. It's a few non-obvious button clicks but it'll just make each slide a picture. Used to use it for my grandfather's travels. J
775.
by Neywiny 2y ago
Not too terribly sure, but NXP puts out power consumption numbers and they get pretty low in sleep modes with self refreshed DDR and whatnot. I think it's just something the market hasn't demanded enough. I'm not really a SBC
776.
by Neywiny 2y ago
This is my biggest complaint of Linux being where bare metal should. For whatever reason my car takes multiple seconds on startup between starting the music and registering my inputs to lower volume or pause. Older cars didn't have tha
777.
by Neywiny 2y ago
I think the article brings up a great point about how they pivoted. So many companies start out strong then resort to "the original" to try and get sympathy? Nostalgia? Idk who falls for that or why. Or they sell out to someone th
778.
by Neywiny 2y ago
My preferred one for EE folks is that reportedly the first Arduino boards (now 20 years old?) had a mistake in their eCAD where the second pair of headers was 0.05 instead of 0.1" apart. But it was too late by the time they caught it.
779.
by Neywiny 2y ago
Incredible to see. Also incredible how difficult it was for me to find how to see it. No links to a video, just a newscast. I scrubbed through it until maybe the 4:30 mark when they highlight a portion. Could've been a gif or something
780.
by Neywiny 2y ago
Maybe I wasn't clear enough, I meant cutting out the gtkwave step. Oscilloscope is great, pulseview great, but what's gtkwave doing here that the others can't?

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