Raspberry Pi Forums

nixy82

Great! Are there any changes required to the rpi-boot flashing assistant, having some problems getting a drive letter up to start flashing it Is it me being all fingers and thumbs or ...? Edit: Yes I just needed to update the rpi-boot program to the latest version from github and we're back in busin...

nixy82

Hi

Nice news, well done guys

Does the new CM3+ require any changes to the dtblob.bin setup file?

i.e. Will it key off the pins_cm3 section still or will it be looking for pins_cm3plus ?

Which OS and kernel/firmware revision is the minimum that will support the new Chip?

Thanks

Andrew

nixy82

Hi

Just interested to know how this ended up as I’m looking at integrating the same SparkLAN module

nixy82

This is great!

We’re a step closer to not needing custom device tree blobs in our compute module application now

Any chance you can do something for camera (dual) configuration in a similar style?

nixy82

Yes that's what I figured

nixy82

Hi We're running a CM3 on a custom carrier board we've had for a few years now. Has been running quite happily up to 4.9.75, no problems. All Solid. I've just done a rpi-update running on Jessie to test out the new 4.14 kernel and the system hangs on next boot up : https://gist.github.com/anonymous/...

nixy82

What I mean is This sounds like if we have an external watchdog chip (e.g. STWD100PYW83F) hooked up to GPIOs 26 (Watchdog enable) & 25 (Watchdog input) we could use a modified version of the config in your posts to allow us to use the rather nice watchdog module, with the range of conditionals in /e...

nixy82

Hi Am I understanding this correctly that you can use any GPIO line (subject to default pull being correct) for external watchdog operation with this? i.e. the module doesn't make use of RPi PWM to do the watchdog pulse timer but rather this is controlled/generated by the Linux OS/Kernel So for exam...

nixy82

+1
I did this too and can't access the eMMC any more either

nixy82

Try adding

Code: Select all

core_freq=250

to /boot/config.txt

nixy82

Have a look at this : https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=168145 There's a dt-overlay suggestion there I /think/ the best I've seen was creating an input with the pulls in the right direction as a pseudo output, which you can then redefine as an output once you've booted via ras...

nixy82

https://www.raspberrypi.org/forums/viewtopic.php?t=168593 Interesting thread! I did do a search on that MS forum you linked to which gave this post with some recent updates : https://social.msdn.microsoft.com/Forums/en-US/b0641ff7-4198-4a13-a2b9-0c3a142c3738/raspberry-pi-cm3-or-cm3l?forum=WindowsIo...

nixy82

fruitoftheloom wrote: Only Microsoft could answer, it is their product:

https://social.msdn.microsoft.com/forum ... WindowsIoT

Thanks, appreciate the insight given.

nixy82

fruitoftheloom wrote: I may be wrong but W10IoT Core does not have the latest kernel / firmware to support CM3 !!

Seriously?

Do you know if that is a bootcode.bin etc from /boot problem (i.e. something that can be transplanted) or some Windows 10 IOT code specific issue ?

nixy82

Appreciate the reply, but I'm still not 100% convinced about the non-CM3 for W10 IOT. W10 Driver issues aside for a moment, just talking about the basic "can we get it to boot W10" As far as I can see the CM3L /should/ be able to boot IOT as it provides the >=8GB storage capacity natively If I can g...

nixy82

Was that done by doing this :

https://www.raspberrypi.org/documentati ... des/msd.md

Presumably that means you can also get the CM3 running the same way if you blank out the eMMC after running?

Does that mean you can boot Windows 10 IOT?

nixy82

Ok, so how do you hang two LAN9512 controllers off a single 480M USB port while leaving all eight of their ports free?

I would start by extending the bus via a cheap USB hub chip myself, then connect up the appropriate combination of LAN9512/9514 chips as desired.

nixy82

That would only give you 7x USB and 2x Ethernet (the second LAN9514 would have to daisy-chain of one of the USB ports in the first one. So it doesn't quite meet the OPs requirements.. You might have thought that, but that's not what I said... . Also, hanging 8 x 480Mb USB + 2 x 100Mb LAN off one 48...

nixy82

The latest version contains a fix for at least the act led, see other posts in this sub-section.

4.9 works fine on my setup YMMV.

nixy82

There's not that much difference between them TBH

The data-sheet details what pins the SD card connector attaches to and the new PSU requirements

nixy82

I don't see why hanging 2 x 100M LAN9514 Wthernet controllers off a 480M bus is a problem, from what I've seen SDIO won't be any better.

The chips have an MTT USB controllers built in so USB bus contention isn't an issue

nixy82

There's been a few changes since the CM1 Notably the device tree file for the CM1 is not compatible with the CM3, your best tack here is to get the source for the latest device tree file, add in your custom bits in and re-compile. The section you're interested in hacking with starts with pins_cm3. A...

nixy82

Hi Is it just my setup or does the ACT led on the CM3 (hanging off GPIO47 via a FET as per CMIO schematics) no longer flash indicating MMC activity as the CM1 did? What I observe on power up : LED on for an instant, then off, then back on solid for remaining duration of boot and operation On shutdow...

nixy82

Doh!

Yep, that's fixed it

Code: Select all

002075.740: Loaded overlay 'uart0-full'

Code: Select all

  GPIO 30: level=0 fsel=7 alt=3 func=CTS0
  GPIO 31: level=1 fsel=7 alt=3 func=RTS0
  GPIO 32: level=1 fsel=7 alt=3 func=TXD0
  GPIO 33: level=1 fsel=7 alt=3 func=RXD0

nixy82

Hi Hope I can get some help here I'm trying to compile the below devicetree overlay to enable and position the full RX/TX/RTS/CTS pins on the (ttyAMA0) UART0 on GPIO30-33 So far I've put UART1 on 14/15 OK I've temporarily removed the serial console from the boot cmdline.txt My kernel running on Jess...

Search found 42 matches

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Re: CM3+ Released with up to 32GB eMMC

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CM3 ACT LED no longer blinking with mmc activity?

Re: TTYAMA0 RX/TX/RTS/CTS Overlay for Compute Module

TTYAMA0 RX/TX/RTS/CTS Overlay for Compute Module