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<
\x >
my little server cant be this cuuute
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06:54
<
\x >
i noticed that orange pi has an spi chip on it
06:54
<
\x >
i have an external flasher
06:54
<
\x >
what can i do with this
06:55
<
\x >
i did read the chip, its empty.
06:55
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06:55
<
\x >
is this like a bios for these boards or what
06:55
<
\x >
im used to work with spi as i corebooted some thinkpads already
06:57
<
\x >
hmmm interesting
06:58
<
\x >
its only 2MB tho
06:59
<
anarsoul >
that's plenty for u-boot :)
06:59
<
\x >
i mean isnt this useful for like
06:59
<
\x >
putting a really teensy kernel on it then itll kexec another kernel found on a usb drive or something?
07:00
<
\x >
now i get why the R1 has a 16MB chip on it
07:01
<
\x >
you can literally run openwrt or something from the chip
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07:03
<
\x >
this gets interesting
07:03
<
anarsoul >
\x: use u-boot.
07:03
<
\x >
there are dip8 sockets
07:03
<
anarsoul >
it can boot from usb
07:03
<
\x >
where do i see that
07:03
<
anarsoul >
and from nfs
07:04
<
\x >
can i like flash it directly on the chip?
07:04
<
\x >
welp, i guess i need to read more about this
07:21
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07:25
<
KotCzarny >
\x: you can boot armbian from sdcard then write to spi chip without any programmer
07:27
<
\x >
yeah, but does that help?
07:27
<
\x >
i mean sure if i can have faster boot times
07:27
<
KotCzarny >
its useful if you want netboot or boot from usb attached sata disk
07:28
<
\x >
i dont even know how uboot works lol
07:28
<
KotCzarny >
and to have sdcard slot free
07:28
<
\x >
but sure i want to boot from usb
07:28
<
KotCzarny >
think of uboot as a grub for arm
07:28
<
\x >
any flashables?
07:28
<
KotCzarny >
define flashables
07:28
<
\x >
i have a flasher here, an external flasher (ch341a) so it wont be a problem if i brick here or wat
07:29
<
\x >
KotCzarny: flashable spi image
07:29
<
KotCzarny >
allwinner socs are unbrickable
07:29
<
KotCzarny >
sdcard slot has highest boot priority
07:29
<
\x >
yeah its not a problem
07:30
<
KotCzarny >
and you can fel-boot the board using another computer and usb cable
07:30
<
KotCzarny >
(in case you dont have any sdcard)
07:31
<
KotCzarny >
ofc you can also just use clipon programmer on the spi chip, but sdcard/fel is just more convenient
07:31
<
\x >
i get that uboot is like a bootloader/bios for these boards
07:32
<
\x >
the thing is, im still looking for resources on how to build one just so that i can make the spi image boot my usb drive
07:32
<
KotCzarny >
unless you want to run some baremetal binary
07:32
<
\x >
i want to run armbian on a large usb drive
07:32
<
KotCzarny >
have you seen the wiki?
07:32
<
\x >
im currently reading mizy
07:32
<
\x >
the one linked here by someone earlier
07:33
<
KotCzarny >
this is your next reading then
07:35
<
\x >
>On supported Allwinner SoCs it is possible to boot over USB OTG. This requires only minimal changes compared to the build steps in the manual build howto, and these changes are explained on this wiki page.
07:35
<
\x >
i cant boot on the /normal/ usb ports of it?
07:35
<
\x >
i have the orange pi zero
07:35
<
KotCzarny >
no, thats why you need uboot
07:35
<
\x >
now we are on the same paragraph
07:35
<
KotCzarny >
to chainload kernel/initrd(optional)
07:36
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07:37
<
\x >
im like really new to this stuff
07:37
<
KotCzarny >
yes, have fun
07:37
<
KotCzarny >
and thank linux-sunxi crowd for making it all possible with latest uboot/kernel
07:38
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07:40
<
\x >
my boards just came yesterday
07:41
<
KotCzarny >
treat them with heatsinks at least
07:41
<
\x >
but yeah i will
07:41
<
\x >
im running the h2 as a tiny server for now
07:41
<
\x >
im replacing my x86 server with this
07:42
<
\x >
tho i think i should've use the h5 board cuz of that gigabit ethernet
07:42
<
KotCzarny >
and a53 cores with 10x faster aes crypto
07:42
<
KotCzarny >
and 2.5x faster neon
07:42
<
\x >
h5 has hardware aes?
07:43
<
KotCzarny >
no, a53 cpu cores used in h5 have it
07:43
<
\x >
ill look laterer
07:43
<
KotCzarny >
i've heard rpi3 also has a53, but without aes accel
07:43
<
\x >
i only just booted it yesterday just to see if it works
07:43
<
\x >
KotCzarny: yep, it can run aarch64
07:44
<
\x >
its just that pi is an open source meme
07:44
<
\x >
like "hurr durr im opensource"
07:44
<
KotCzarny >
rpi or opi?
07:44
<
\x >
its not really opensource
07:44
<
\x >
you can run aarch64 on it tho
07:44
<
KotCzarny >
it runs closed source os and your linux runs as a guest of it
07:44
<
\x >
but only for headless use
07:45
<
\x >
atleast arch has no xorg to break in that
07:45
<
KotCzarny >
you can compare them later in performance
07:46
<
KotCzarny >
just keep in mind h2/h3 is 32bit
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07:54
<
\x >
KotCzarny: heres what i said about that spi flasher
07:54
<
\x >
featuring the shadiest 3.3V source ever
07:55
<
KotCzarny >
could be worse
07:55
<
\x >
b-b-b-but corebooted thinkpads hey
07:55
<
\x >
whats not to like
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13:30
<
karlp >
wens: using the same dtb for both, is the alias just "ethernet0" ?
13:32
<
karlp >
you can also use sunxi-fel to write to the spi flash directly.
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18:08
<
BenG83 >
how much does THS calibration usually influence the sensor value? is it more like 1% or 10%?
18:09
<
BenG83 >
I guess it varies with wafer batches
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18:20
<
anarsoul >
BenG83: my guess is ~5%, but I'm not sure :)
18:20
<
anarsoul >
10% is too much
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