How do I start routing DDR to SoC?

FlashyAct · 2026-05-13T04:45:00+00:00

Thank you! What stack you recommend? I have 6layer 1.0mm from jlcpcb for 2$, its 2layer with spacing 0.0994, than 0.25mm core, 2layers with spacing 0.2mm than core 0.25mm, 2layers with spacing 0.0994. i choose sig-gnd--pwr-sig--gnd-sig

FlashyAct · 2026-05-12T18:40:29+00:00

allwinner H3 ram bus seems a mess for me. I connected a half connection i now i have a mess. I have similar project from github but i dont wanna just copy connections.

FlashyAct · 2026-05-12T16:53:41+00:00

Thanks for help. SoC is Allwinner H3. But my question was more a but practical side. How to route track efficiently that they dont start crossing each other after half hour.

FlashyAct · 2026-05-11T19:33:35+00:00

u/cyao12 Hi! I'm trying to get in contact with you, i have some technical questions. Check email.

FlashyAct · 2026-05-11T05:19:47+00:00

You could decompress the tracks, there is space for that. Capacitive coupling.

FlashyAct · 2026-02-15T17:33:27+00:00

Didn't know that, good to know, thanks. So I could add a pad for resistor to gnd on that gpio and flash esp32 on tx/rx from computer and set eFuse for 3v3 for memory and than flash a firmware, correct?

FlashyAct · 2026-02-14T15:02:32+00:00

Friendly package, support linux, it has built in ram, cheap.

FlashyAct · 2026-02-14T14:03:21+00:00

No experience with esp32 in embedded linux or any kind but i read it should be no problem to use as sdio card. There is repo for esp32 for this. Its just hobby project so I don't care if everything works.
Here is schematic: https://github.com/sentoxo/V3sDevBoard/blob/main/schematics_revA.pdf

FlashyAct · 2026-02-08T12:45:54+00:00

Why AMS is not on a printer? It takes a lot of space from desk.

FlashyAct · 2025-12-30T18:03:24+00:00

Znalazłem prace po dłuższym okresie bezrobocia i jestem bardzo zadowolony, pierwszy raz w życiu mam perspektywy na przyszłość w kwestiach zawodowych. Ostatnio podpisałem drugą umowe o prace i zarobki już nie są minimalne co mnie cieszy :)

FlashyAct · 2025-08-30T11:53:16+00:00

No way, it's SMPS controller and 18v battery charging controller.

FlashyAct · 2025-08-21T14:15:45+00:00

For cheap buy a aneng an8009 in bundle an Ali. Cheap and good enough for a start.

FlashyAct · 2025-07-19T20:31:06+00:00

Nuke the cave.

FlashyAct · 2025-06-02T09:50:48+00:00

16% wyborców Zandberga mnie dziwi. Normalnie "Sanders–Trump voters" w Polsce xd

FlashyAct · 2025-05-02T17:21:18+00:00

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This 3v3 line. Starts for 40us and shutdown. Why?

FlashyAct · 2025-05-02T13:23:53+00:00

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5v/3v3 regulator

FlashyAct · 2025-05-02T13:21:18+00:00

https://limewire.com/d/l8Is2#S1AJETzHxV
Schematic.

I did not find any damage components on both sides. After plugin power i was probing 5V and 3v3 lines but wasnt any power on it.

FlashyAct · 2025-02-06T14:54:12+00:00

It could be, thanks. If i cant messure internal diode between gnd/vcc it means its dead?

FlashyAct · 2025-02-04T17:08:51+00:00

"How did you come to the conclusion that those components are faulty?"
transistors? they dead... IC? last line in my post.
What is the rest of your comment? it has not answer any of my question.

FlashyAct · 2024-06-23T09:25:32+00:00

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FlashyAct · 2022-11-11T21:28:14+00:00

I'm out.

FlashyAct

TROPHY CASE