Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Raspberry Pi CM5 seen in the wild

twitter.com

Post reply on HN
Print view View original

11–20 of 39 posts

Re: Raspberry Pi CM5 seen in the wild

#11

Post by ceinewydd »

jacobmarble wrote: post #9
jsheard wrote: post #2

We all knew this was coming, but my question is what's the topology? The same as the regular Pi5, with the RP1 southbridge built-in and only one PCIe lane exposed for the user, or does the CM5 leave off the RP1 and break out all five PCIe lanes for user shenanigans? They have a bare chip supply chain set up from the RP2040, so they could sell the RP1 separately for those who want to integrate it onto their carrier bo…

It looks like the CM5 still has one PCIe lane. https://pip.raspberrypi.com/categories/945-forward-guidance

Be aware that discussing anything in the CM5 Forward Guidance document is tricky, the document still says -

"This whitepaper is restricted and covered by the Raspberry Pi Ltd non-disclosure agreement (NDA). It should not be copied, shared, or duplicated without permission."

Re: Raspberry Pi CM5 seen in the wild

#12

Post by syene »

ceinewydd wrote: post #11
jacobmarble wrote: post #9

Earlier quoted context omitted.

It looks like the CM5 still has one PCIe lane. https://pip.raspberrypi.com/categories/945-forward-guidance

Be aware that discussing anything in the CM5 Forward Guidance document is tricky, the document still says - "This whitepaper is restricted and covered by the Raspberry Pi Ltd non-disclosure agreement (NDA). It should not be copied, shared, or duplicated without permission."

Good thing nearly none of us here have signed that NDA.

Re: Raspberry Pi CM5 seen in the wild

#13

Post by jsheard »

ceinewydd wrote: post #11
jacobmarble wrote: post #9

Earlier quoted context omitted.

It looks like the CM5 still has one PCIe lane. https://pip.raspberrypi.com/categories/945-forward-guidance

Be aware that discussing anything in the CM5 Forward Guidance document is tricky, the document still says - "This whitepaper is restricted and covered by the Raspberry Pi Ltd non-disclosure agreement (NDA). It should not be copied, shared, or duplicated without permission."

I signed up with a disposable email and got access automatically, it's not that secret evidently. It was probably stricter earlier in development.

Re: Raspberry Pi CM5 seen in the wild

#14

Post by HankB99 »

MuffinFlavored wrote: post #5
cicloid wrote: post #3

I've been waiting for this, now, the question is, is this a drop-in replacement for the CM4? If so, these will sell really well (and will have shortages)

What's something you do with these compute modules (CM)?

I use one on a "CM4 ETHER BOARD" https://dphacks.com/cm4-ether-board-minimalist-compute-modul... which provides Ethernet, USB-C for power and micro USB for flashing an EEPROM. It doesn't have an SD card slot but it has a 2230 NVME slot on the reverse side. I program the SSD on another setup and run Home Assistant on it. Ethernet is really all the I/O needed for a small server like that.

I have another one on a Bicool Mini Base Board (A) which has a lot more I/O, albeit only one HDMI port and no USB3. It's suitable for desktop type applications with the caveat that the CM4 is barely suitable for that stuff.

Re: Raspberry Pi CM5 seen in the wild

#15

Post by mfritsche »

MuffinFlavored wrote: post #5
cicloid wrote: post #3

I've been waiting for this, now, the question is, is this a drop-in replacement for the CM4? If so, these will sell really well (and will have shortages)

What's something you do with these compute modules (CM)?

Something which would most likely to be too niche of a market but which I would spend almost unreasonable money on would be a framework like laptop which one could upgrade by popping in a new cm every other year.

Re: Raspberry Pi CM5 seen in the wild

#16

Post by RetroTechie »

MuffinFlavored wrote: post #5
cicloid wrote: post #3

I've been waiting for this, now, the question is, is this a drop-in replacement for the CM4? If so, these will sell really well (and will have shortages)

What's something you do with these compute modules (CM)?

Digital signage, among others. Think big flashy LED screen in store window, train station & the like. Or kiosk-style uses.

Also I've read some e-scooter sharing company used CMs for the smarts in their vehicles. Edit: might have been RPi's not CMs (but the latter wouldn't be out of place).

In short: industrial & embedded uses.

Re: Raspberry Pi CM5 seen in the wild

#17

Post by sircastor »

dheera wrote: post #4

The trouble with these CM's is by the time you get your hands on CM5 and engineer your custom carrier board for it (because they change the pinout every time), Pi 6 has come out.

Hopefully they're sticking with the same connectors and pinout as the CM4. The Raspberry Pi foundation considers the Compute Module line to be non-hobbiest-oriented anyway. They expect people to be building around the solution offered as a long-term product. The NEC display is a good example, because NEC is interested in driving the display for the life of the display, not in customers replacing the CM4 when its EOL.

Re: Raspberry Pi CM5 seen in the wild

#20

Post by sircastor »

srott wrote: post #18
dheera wrote: post #4

The trouble with these CM's is by the time you get your hands on CM5 and engineer your custom carrier board for it (because they change the pinout every time), Pi 6 has come out.

It won’t fit into rpi 400?

The Raspberry Pi 400 is a distinct product. It doesn't use a Compute module internally.
Post reply on HN