Linux Runs on Raspberry Pi RP2350's Hazard3 RISC-V Cores (2024)

Post by walterbell » Fri, Jan 09, 2026, 10:05 PM UTC

mbreese wrote: post #49

walterbell wrote: post #27

Linux on Pi Zero can be used as a sidecar for iPads. https://schwarztech.net/articles/my-ipads-raspberry-pi-sidec... This method configures the Raspberry Pi [Zero] in “gadget” mode, creating a private link that appears as a wired Ethernet connection over a USB cable. The Pi’s address will never change, either as it is also a DHCP server for the iPad. As an added bonus, the same cable powers the Pi, creating a setup a…

I used to do the same thing with a full RPi4. I’m pretty sure that was the first non-pi zero that worked in gadget mode. I was trying to make an attached Linux machine for my iPad instead of using a cloud VM. It was pretty effective, but at the time the ARM distributions were difficult to run what I wanted. Now, however, it would be significantly better.

Post by wbsun » Fri, Jan 09, 2026, 11:54 PM UTC

synack wrote: post #41

wbsun wrote: post #39

Oh running Linux on a MCU without MMU. I feel there is a gap between MCU and modern CPU, and also between the software running on top of them. The missing piece is a mid-size computer with: - A processor, single or multi-core, with computing power like 20 years ago, but modern fabrication process. Maybe without MMU for simplicity. - RAM between 100MB~1GB and DDR2/3 bandwidth. - An OS designed and implemented for this…

That was Intel Quark. It was too expensive for the “big microcontroller” use case and too power hungry for the “small Linux” use case. The marketing was confusing, I’m not sure Intel even knew what it was for, except to show investors they had an IoT play. https://en.wikipedia.org/wiki/Intel_Quark I found some of these boards in a box last year and was unable to do anything with them… Intel has thoroughly erased all…

Post by bmicraft » Sat, Jan 10, 2026, 12:05 AM UTC

wbsun wrote: post #39

Oh running Linux on a MCU without MMU. I feel there is a gap between MCU and modern CPU, and also between the software running on top of them. The missing piece is a mid-size computer with: - A processor, single or multi-core, with computing power like 20 years ago, but modern fabrication process. Maybe without MMU for simplicity. - RAM between 100MB~1GB and DDR2/3 bandwidth. - An OS designed and implemented for this…

Post by [deleted] » Sat, Jan 10, 2026, 3:28 AM UTC

kelnos wrote: post #56

walterbell wrote: post #27

Linux on Pi Zero can be used as a sidecar for iPads. https://schwarztech.net/articles/my-ipads-raspberry-pi-sidec... This method configures the Raspberry Pi [Zero] in “gadget” mode, creating a private link that appears as a wired Ethernet connection over a USB cable. The Pi’s address will never change, either as it is also a DHCP server for the iPad. As an added bonus, the same cable powers the Pi, creating a setup a…

Cool, but any SBC that runs Linux and has a USB port that supports gadget mode can do this. Either way, what does this have to do with the article?

Post by snvzz » Sat, Jan 10, 2026, 4:17 AM UTC

eek2121 wrote: post #52

mghackerlady wrote: post #16

I'd really like to see a pi zero 3 that runs on RISC-V, it might be the kick in the pants RISC-V needs to go "mainstream" at least in the public view. People know raspberry pi, nobody outside the RISC-V scene really cares or even knows about MILK-V

RISC-V needs an inexpensive, performant part for it to be used in the consumer space. The fastest available RISC-V consumer chip is orders of magnitude slower than a Raspberry Pi 5. Example: https://browser.geekbench.com/v6/cpu/compare/15998376?baseli...