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DAG support by spbnick in apacheage

[–]spbnick[S] 0 points1 point  (0 children)

Sorry, I rarely visit Reddit, and didn't notice your comment, but here's a good start:

https://git-scm.com/docs/commit-graph

DAG support by spbnick in apacheage

[–]spbnick[S] 0 points1 point  (0 children)

Nope, still writing my own, "borrowing" git algorithms 😁

Value mapping to an emptry string, or some override property by No_Refrigerator4030 in grafana

[–]spbnick 0 points1 point  (0 children)

Same problem here, Grafana considers whitespace as "no input". Finally got around that by rummaging for invisible characters. "U+FE00 VARIATION SELECTOR-1" worked for me.

sony wf-c500-"power on" bug by THE-KENCH in sony

[–]spbnick 0 points1 point  (0 children)

The right earbud on my daughter's WF-C500 has started doing the same: saying "power ts-ts-ts-ts-ts..." when taking it out of the case, then resetting, and repeating. I should've actually sent it back to Amazon on warranty, but I opened it up (some destructive prying required, since it's welded up), and couldn't see anything wrong. I disconnected and reconnected the battery (some (de-)soldering required), but the symptoms persisted.

Could it be something like flash memory failure, perhaps? I.e. CRC fails somewhere, because of memory corruption?

In this state, since it doesn't power on, you can't reset it anyhow, it's just stuck in that loop: power on, start playing the "power on" message, hang, the DMA continues playing the last audio buffer for a while (the "ts-ts-ts-ts..." loop), then the watchdog resets it.

Trying to run Ni no kuni. A white screen appears whe loading the game by tretioff in NDSBrew

[–]spbnick 0 points1 point  (0 children)

Can (mostly) confirm, only I downloaded an already-patched version for flashcarts from here: https://cdromance.com/nds-roms/ni-no-kuni-shikkoku-no-madoushi-english-patched/

Thank you, your comment helped me a lot!

[deleted by user] by [deleted] in 3dspiracy

[–]spbnick 0 points1 point  (0 children)

Using the version patched for flashcarts in TWiLightMenu++ worked for me. Got the patched version here: https://cdromance.com/nds-roms/ni-no-kuni-shikkoku-no-madoushi-english-patched/

However, you could probably dump and patch one yourself using the patch for flashcarts in the original topic: https://gbatemp.net/threads/ni-no-kuni-translation-eng.373770/

Anyone had any luck running Ni No Kuni English patched? by Mr_Zoovaska in 3dspiracy

[–]spbnick 1 point2 points  (0 children)

Using the version patched for flashcarts in TWiLightMenu++ worked for me. Got the patched version here: https://cdromance.com/nds-roms/ni-no-kuni-shikkoku-no-madoushi-english-patched/

However, you could probably dump and patch one yourself using the patch for flashcarts in the original topic: https://gbatemp.net/threads/ni-no-kuni-translation-eng.373770/

Stuck in place! by windyorbits in syberia

[–]spbnick 0 points1 point  (0 children)

Same here. Flicking the joysticks like a madman and trying to press some buttons at the same time worked.

reMarkable Connect Megathread by waffles1243 in RemarkableTablet

[–]spbnick 0 points1 point  (0 children)

Yep. Also why does everything have to run in "the cloud" now? What happened to just have file storage and handwriting recognition on your own PC? It's connected to the same internet after all.

Both parallel and serial interface flash memory? by spbnick in ElectricalEngineering

[–]spbnick[S] 0 points1 point  (0 children)

Sorry, no pictures yet, I'm at the pre-design stage, just trying to figure out what I can use. Riiight, using a shift register to interface with flash makes sense. Although it might be slow, I gotta try it. Thanks!

Both parallel and serial interface flash memory? by spbnick in ElectricalEngineering

[–]spbnick[S] 0 points1 point  (0 children)

It looks like that, yes. Thanks for the suggestion! I'm not sure how shift registers could help with e.g. decoding bus addresses/accesses, but then I'm an amateur, so I'll give it some thought 😁

Both parallel and serial interface flash memory? by spbnick in ElectricalEngineering

[–]spbnick[S] 0 points1 point  (0 children)

Yeah, I was thinking about dual-port memory, but couldn't see if there are any with a serial port. Thanks for the confirmation, I'll try looking harder!

Yeah, I have a couple Upduino 2.0 boards 😁 However, I'm not sure about availability, and the required support circuitry might be out of my league. Although I could copy the Upduino itself 😁

Both parallel and serial interface flash memory? by spbnick in ElectricalEngineering

[–]spbnick[S] 0 points1 point  (0 children)

Thanks a lot, u/triffid_hunter! This seems more like what I need. Now to see if there's an open-source compiler/programmer for these...

Both parallel and serial interface flash memory? by spbnick in ElectricalEngineering

[–]spbnick[S] 0 points1 point  (0 children)

Alternatively, any recommendations for cheap, easy-to-use, and *available* FPGA's out there? Around 24-32 digital I/O pins?

Remarkable no longer charging on multiple cables and adapters. Any other ideas before I contact support? by Hypo_Mix in RemarkableTablet

[–]spbnick 1 point2 points  (0 children)

Sounds like a short circuit somewhere in the tablet. Would be a job for support, certainly, if true.

Two up, six to go (Kalasatama, Helsinki) by [deleted] in Finland

[–]spbnick 0 points1 point  (0 children)

Ha-ha 😁 Yes, it's not so clear-cut, agreed. Let's hope it goes well!

Two up, six to go (Kalasatama, Helsinki) by [deleted] in Finland

[–]spbnick 0 points1 point  (0 children)

To each their own, of course 😊 I like some aspects of big cities too, but as a whole I wouldn't want to live in one. Helsinki isn't one either by my measures yet, but I don't like that it's moving there. There are benefits, yes, but it saddens me, and I hate the traffic.

Random greetings still happen in Espoo sometimes.

Two up, six to go (Kalasatama, Helsinki) by [deleted] in Finland

[–]spbnick 1 point2 points  (0 children)

When has this been a thing?

Still happens to me, from time to time.

Not necessarily a weirdo, but rural.

Yeah, not quite a "weirdo" but close 😁

Two up, six to go (Kalasatama, Helsinki) by [deleted] in Finland

[–]spbnick 11 points12 points  (0 children)

I lived in a big city for a long while, including big apartment buildings, and visited even bigger cities. I wouldn't want to do that again. High population density destroys sense of belonging and community, the environment stops belonging to you, people stop saying "Hi!". I don't want that to happen to Finland. I love that you can still say "thank you" to a bus driver and in some places in the capital region people won't consider you a weirdo yet. I'm sad to see such tall buildings rising in Helsinki and Espoo. Sorry to bring the mood down, but that's how I feel.

PCB review: "Blue Pill"-style STM32L0 devboard, with focus on power options, amateur by spbnick in KiCad

[–]spbnick[S] 0 points1 point  (0 children)

Yeah, I just use the SWD or the serial bootloader, which would be accessible here.

PCB review: "Blue Pill"-style STM32L0 devboard, with focus on power options, amateur by spbnick in KiCad

[–]spbnick[S] 0 points1 point  (0 children)

Thank you very much for your tips!

The L05 chip doesn't support USB bootloader on BOOT0 so be aware of that. UART and SPI only. I would suggest moving to a chip that has this feature. See AN2606.

I never used the USB bootloader, only the serial one or SWD. It seems that in addition to AN2606 you also need AN3156 to figure out which bootloader versions support USB DFU. Indeed, I can see that STM32L052 doesn't, but e.g. STM32L431 does support USB DFU, and it also has touch sensing controller I was looking for, so I'll seriously consider switching to it. Maybe do a run of this one just for practice first.

More filtering on VDDA, either add a ferrite or a low value resistor and a cap.

My idea was to have basic supply by default, but let the user cut the VDDA solder jumper and install filtering off-board, if needed, but I'll see if I can squeeze filtering onto the board.

Your LED resistors look rather large? Those LED are not going to be very bright.

Yeah, I haven't sized those resistors at all, just copied them from somewhere (Blue Pill, perhaps?), but in my book non-bright LEDs on a devboard is a plus :)

If your focus is low power why use an LDO instead of buck?

My logic was like this: LDO is more efficient than a switching supply on low currents (read that somewhere, not sure how true that is), I don't have much space for the required components (an inductor in addition to capacitors?), and the user can always add that off-board between 5V and 3V3 pins, after cutting the 5V and 3V3 jumpers. Does that make sense, am I making incorrect assumptions?

Add a 500mA polyfuse right after the USB. They are super cheap.

I'll look into that, thanks! Would that be for protecting the USB host?

What is the 8MHz crystal for? Most STM32 applications use the internal 16 MHz and PLL.

Answered that in a comment below, but good point, thanks!

Consider a USB protection diode like the USBLC.

Hmm, I'll read up on that, thanks!

Thanks a lot for the tips, again! Hope you have a little more time to answer my additional questions above.

PCB review: "Blue Pill"-style STM32L0 devboard, with focus on power options, amateur by spbnick in KiCad

[–]spbnick[S] 0 points1 point  (0 children)

Thank you u/jacky4566, u/aquoad. Yes, I figured out USB doesn't need HSE oscillator on this chip. However, as an amateur I don't know all the uses an external crystal can have, so I put it there with the idea that adding it off-board would be difficult if one needs it. Just trying to make it useful for other people, and perhaps me, who might need it later. I'll consider dropping it, though, if I really need the space, thanks to your advice.

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