bartembregts
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Joined: Tue Jul 11, 2017 10:04 am

New Pi Zero, operating system compatibility?

Tue Jul 11, 2017 10:09 am

I've a Raspberry Pi Zero, but is it possible to install Ubuntu ARM?
The Broadcom BCM2835, is a ARM11 arch, so will Ubuntu for ARMv8 work?

Thank you.

fruitoftheloom
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Joined: Tue Mar 25, 2014 12:40 pm

Re: New Pi Zero, operating system compatibility?

Tue Jul 11, 2017 10:37 am

bartembregts wrote:I've a Raspberry Pi Zero, but is it possible to install Ubuntu ARM?
The Broadcom BCM2835, is a ARM11 arch, so will Ubuntu for ARMv8 work?

Thank you.
Ubuntu https://ubuntu-pi-flavour-maker.org/ is compiled for ARMv7 and configured for the RPi 2B & 3B, the Raspberry Pi Zero is ARMv6 so it is not feasible to install.

Stick with Raspbian Jessie....
Adieu

W. H. Heydt
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Re: New Pi Zero, operating system compatibility?

Tue Jul 11, 2017 4:02 pm

bartembregts wrote:I've a Raspberry Pi Zero, but is it possible to install Ubuntu ARM?
The Broadcom BCM2835, is a ARM11 arch, so will Ubuntu for ARMv8 work?

Thank you.
The nomenclature can be confusing. The Pi0 (and Pi0W, A+, B+ and earlier boards) SoC--BCM2835--"ARM11" CPU is an ARMv6. Ubuntu ARM is for ARMv7 and later (the current Pi2B and Pi3B use ARMv8 CPU cores). So ignore the "11". It doesn't provide any useful information unless you are digging very deep into what the CPU can or cannot do. Go with the ARM version ("v") number as a generational indicator.

So...the short answer is: No.

marcoziti
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Joined: Mon Aug 20, 2018 1:16 pm

Re: New Pi Zero, operating system compatibility?

Mon Aug 20, 2018 1:22 pm

Has there been a plan to provide Pi Zero with armv8?

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mahjongg
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Re: New Pi Zero, operating system compatibility?

Mon Aug 20, 2018 3:53 pm

marcoziti wrote:
Mon Aug 20, 2018 1:22 pm
Has there been a plan to provide Pi Zero with armv8?
Firstly, the RPF NEVER pre-announces its plans,

Secondly a PI with a newer SoC (System on a Chip) is *very* unlikely, as it cannot be made for a similar price, because newer SoC's no longer use Package on Package (PoP) RAM, like the first PI's, so in newer PI's the RAM must now be mounted on the reverse side of the board, which would massively increase the price when you do that with a Zero.

Current Zero's are only this cheap because *nothing* is placed on the bottom side of the board, and everything (including all the connectors) are surface mount devices soldered on one side of the board, so only one soldering event is needed. This is the major factor which keeps the price so low.

jbudd
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Re: New Pi Zero, operating system compatibility?

Mon Aug 20, 2018 11:15 pm

newer SoC's no longer use Package on Package (PoP) RAM, like the first PI's, so in newer PI's the RAM must now be mounted on the reverse side of the board
Just out of interest, why does the memory have to be directly above or below the processor? Does the length of the connection "wire" have an impact on performance?

And how many connections through the PCB are there underneath that little square of metal on a Pi 3B+?

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HawaiianPi
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Re: New Pi Zero, operating system compatibility?

Tue Aug 21, 2018 2:03 am

jbudd wrote:
Mon Aug 20, 2018 11:15 pm
Just out of interest, why does the memory have to be directly above or below the processor? Does the length of the connection "wire" have an impact on performance?
The RAM does not need to be directly below the SoC, and in fact, on the Pi3B it's not. The RAM chip is closer to the center of the board (lengthwise), while the SoC is closer to the micro-SD card slot end of the PCB.
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