And a new Raspberry Pi Zero
mark stephens (181) 125 posts |
Looks like an interesting new machine… https://www.raspberrypi.com/news/new-raspberry-pi-zero-2-w-2/ |
Chris Gransden (337) 1196 posts |
No problems booting into RISC OS on the Pi Zero 2 with 6 month old firmware and RISCOS rom.
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Steffen Huber (91) 1945 posts |
Nice to see the memory benchmark “up to speed” – that was always a weakness of the first Zero models. The numbers look a lot like Pi 3. Which makes sense of course. Hopefully heat dissipation will work well. |
Dominic Plunkett (2556) 34 posts |
https://www.raspberrypi.com/products/raspberry-pi-zero-w/ “Obsolescence Statement |
Chris Gransden (337) 1196 posts |
At a stable overclock of 1.3GHz with the Pi Zero 2 in a flirc case CPU temperature in use is about 42C. There’s currently a patch waiting to be merged that fixes GPIO. The Elesar WiFi hat now works with the patch applied. Just needs native WiFi support in RISC OS. |
Steve Revill (20) 1361 posts |
I believe we have some fixes for the Pi Zero 2 W incoming into our GitLab server over the coming days. |
Steffen Huber (91) 1945 posts |
Sounds good. RISC OS (i.e. single core and little load on GPU) or Linux? |
Chris Evans (457) 1614 posts |
Following the link you are asked to sign in. Can anyone sign up for access? Do you need approval? |
Chris Hall (132) 3545 posts |
I just look at the public access bits, for example looking at the (96) merge requests there is one 3 days ago: |
Chris Mahoney (1684) 2162 posts |
There is a link on the left called “explore the source code without logging in”. |
Chris Evans (457) 1614 posts |
Thanks for the pointer Chris. |
Chris Hall (132) 3545 posts |
It has now been approved, so should be in the rom tomorrow (not sure whether this fixes the SD card activity LED). |
Chris Hall (132) 3545 posts |
Well the development rom zip is 4 Nov but the rom inside is 27 Oct. Puzzled. |
David Pitt (3386) 1248 posts |
A quick look on the RPi4 does show a 4 Nov ROM. HTH. |
Jeffrey Lee (213) 6048 posts |
Yes, there’s a bug with the version of zip that’s being used to produce the zip files, which results in the native zip timestamps being wrong (but the RISC OS file attributes/timestamp are correct, so you’ll get different results depending on how you examine the zip). https://www.riscosopen.org/forum/forums/11/topics/9579?page=2#posts-71767 |
Chris Hall (132) 3545 posts |
Yes, the rom is 4 Nov. I have updated the benchmarks to include Pi Zero 2W and have reseerved a space for the Pi ITX from R-Comp when it appears. |
Stuart Painting (5389) 710 posts |
Testing the Pi Zero 2 W with the latest RO 5.29 ROM (04 November):
Download link for those who want the exact firmware. You will need bootcode.bin, fixup.dat and start.elf. |
Chris Hall (132) 3545 posts |
Interesting – the latest firmware (bootcode.bin, fixup.dat and start.elf) on the current distribution of Linux on the Raspberry Pi web site is May 2021 so they haven’t caught up yet! The ROOL site doesn’t worry about firmware – the latest Pi firmware is 20 Dec 2020 so far as the downloads are concerned. The only thing that is updated (apart from even numbered builds) is the nightly rom which is sometimes good and sometimes bad, depending whether an occasional breaking change has crept in. Not having a link to the firmware keeps inexperienced users away and stops them bricking their machine. |
Stuart Painting (5389) 710 posts |
Further checking has shown that the Pi Zero 2 W activity LED works with December 2020 firmware. This leaves me in a bit of a quandary with the Pi firmware Wiki page – as things stand the wiki page is recommending the correct firmware, but owners of RISC OS 5.28 may be under the impression that they already have December 2020 firmware, when in fact they only have December 2020 Pi 4 firmware (fixup4.dat, start4.elf) and the firmware they have for other Pi models (bootcode.bin, fixup.dat, start.elf) is too old. Perhaps I’m overthinking the issue… |