yeah controller willll be the limiting factor
uhs-ii needs 8 data lanes
4 data lanes can reach at most uhs-1
and uhs-i needs voltage switching
which is supported by no sunxi boards
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what about a1/a2 classes?
MoeIcenowy: so 1.8v is not supported regardless? only 3.3v?
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MoeIcenowy: uhs-ii needs extra pins and a whole new different slot, so its irrelavant for sunxi
DonkeyHotei: depends both on the SoC variant, and the board layout
none of the boards bothered to properly route a configurable regulator for the I/O supply
Personally I think A class have little difference
at least for A1
wanna purchase an A1 card for test
so, basically, all that's needed is any old class 10?
yeah , ~5MB/s typical performance
is class 10 even needed?
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its probably the max performance you'd get out of the slot
(using a class 10 card)
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you can use class 10
but, don't use "old" class 10
and I assume A class can advance a lot
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Are A2 class cards available yet? I am interested in command queueing aspect of this.
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MoeIcenowy: I haven't gotten any response from embed-3d regarding his ths driver
I'm wondering if the Oranje Pi Zero Plus: H5 has the capabilities to write a public key in ROM and making sure all software is signed by it. I'm interested in creating device which is secure. I read that on paper the Allwinner H5 has the capabilities but i was pointed to irc from the armbian forums.
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the CPU is generally not aware of the software
there's a bunch of layers between that, like a operating system
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@buZz how about a secure boot setup, where the kernel and modules at least can be verified against a pubkey written in an efuse?
i kinda doubt that, but i'd be happy to be suprised