Pine64 Ox64 $6 RISC-V Linux hybrid SBC

Re:Pine64 Ox64 $6 RISC-V Linux hybrid SBC by alexisread on Monday October 17, 2022 @05:20AM (#33231348)

I think there are a lot of new applications something like this can fill. Farmbots are a good example, requiring ML, cameras, low power operation, radio (lora would be better here, but you should be able to add it easily

https://lupyuen.github.io/articles/lora2).

The other thing to note here is that the bl808 is likely to be completely open, no binary blobs. To be this full featured in the cpu, npu, mcu, IO, and radio space for such a low price, and open source firmware is unheard of.

I can actually see many hobby OSes supporting a device like this as it's a single open target- driver support should not be an issue.

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Re:Pine64 Ox64 $6 RISC-V Linux hybrid SBC by BizarroLand on Monday October 17, 2022 @01:10PM (#33236603)

I am somewhat confused over the CPU design. Does anyone know what the reason or advantage is for having 2 different architecture processors running at different clock speeds in the same SOC sharing the same ram?

Was this an accident or did it serve a specific purpose?

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Re:Pine64 Ox64 $6 RISC-V Linux hybrid SBC by alexisread on Monday October 17, 2022 @04:48PM (#33239329)

I think it's for hi/low power switching- radio stacks and ML models can be shared, so you don't need to reinitialise them, and you can activate only the high power cpu when required.

Farmbots and wearables are a couple of applications that would match this pattern. Camera AI and radio but running on battery.

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Re:Pine64 Ox64 $6 RISC-V Linux hybrid SBC by BizarroLand on Monday October 17, 2022 @07:11PM (#33240752)

Interesting! I didn't consider power draw at all.

That is kind of weird as the whole system only draws (5v/0.5a = 2.5w) and I can't find anything that states that the power draw would radically alter for utilizing only 1 core.

At 2.5w a 10,000wh battery would run this non-stop for weeks.

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