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From: Single Stage to Orbit <alex.buell@munted.eu>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: New Pico2
Date: Sun, 11 Aug 2024 22:32:38 +0100
Organization: One very high maintenance cat
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Message-ID: <9778be7486d0f9b79e5110596f0b66631ae0ff09.camel@munted.eu>
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On Sun, 2024-08-11 at 21:45 +0100, Andy Burns wrote:
> Surprised nobody has mentioned the Pico2 boards (based on RP2350A or=20
> RP2350B chips, instead of RP2040).
>=20
> 2x ARM cores plus 2x RISC-V cores (perm any 2 from 4)
> 150 MHz with FPU instead of 133MHz without
> lower power consumption
> more I/O pins (B model only?)
>=20
> I really ought to buy a couple for tinkering ...
>=20
> official boards not available yet, but 3rd party boards are, e.g.
>=20
> <https://shop.pimoroni.com/products/tiny-2350?variant=3D42092638699603>
> <https://shop.pimoroni.com/products/pga2350?variant=3D42092629229651>

Pimoroni Pico plus 2 is sitting on my desktop ready for me to play with
it.=20

This beast also has 16MB of flashram and 8MB of PSRAM. I've also got a
SD card board and some headers I need to solder on to use with it.=20

I've got a RISCV baremetal operating system I might bring up on this
device but looking at the datasheet for the RISCV processor used, it's
only got machine mode and user mode, no supervisor mode and no paging.
It does not even support any of the Sv pagetables so that's a
challenge.=20

Most interestingly enough, you can actually boot up with one RISCV core
and one ARM core, two RISCV cores or both ARM cores. Mixed processor
cores that'll be fun to see what we can do with that.=20
--=20
Tactical Nuclear Kittens