Also -- Is there really no Euclid specific forum here? Strange as it's so much different than just a realsense camera. It contains one, sure, but most of it is not realsense, you feel me?
Okay, it *looks* like from the teardown that it may be the pair of pads above the debug port, ie next to "20". Pic is upside down:
Is this true? If I short that does it void my warranty? To be honest I have absolutely no idea here so I'm not touching it until I get a response. I don't see any battery here either, which makes me wonder how long I may have to leave it unpowered before it loses it's memory (if it even does, what if it doesn't use a CMOS circuit and instead writes to flash? that would be rather terrible.)
It scares me that the pads are right next to the SDIO expander though. hmm.
From what I've gathered the CMOS logic is actually contained *inside* the PCH (https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/7-series-chipset-pch-datasheet.pdf), which is interesting. There's apparently a pin, RTCRST, meant just for that jumper we're used to seeing. (It warns vendors in the datasheet about pulling VCCRTC down with the jumper, I'm guessing that's to save the battery over time?). Not that any of that really helps me here as that chip is on the other side of the board (judging again from scanlime's teardown here), underneath a large shield, which I highly doubt it would be put there.
For anyone else curious, this is the relevant part of the datasheet for the PCH: https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/7-series-chipset-pch-datasheet.pdf#G3.1384352
I'm starting to think it may not be 20 after seeing that schematic.
Should I just RMA it at this point? It seems a bit extreme to have to do that for just changing BIOS boot-time settings, doesn't it? (Plus what happens when I do it again?)
I've been up and down the documentation, and, I'm surprised there isn't anything in here related to this.
The Joule has/had excellent docs with schematics to boot
There _has_ to be a nice way to reset the BIOS without voiding my warranty, and I've got a feeling it's accessible from either the debug port or those pads around it (please correct me if I'm wrong).
I figured at first it would of course just be a button combination during power on, but I've tried all common button combinations I can think of to try to get it into some kind of bios recovery mode/alternate boot rom..
- I took the `.fv` bios flash file for the Euclid and placed it on a ESP/vfat formatted sdcard hoping it would look there first or something, but it seems not to notice.
- I left it unplugged for 6 hours with the battery out, hoping that since I don't see a battery on scanlime's teardown it would reset within that time. (I'm guessing those caps are pretty good, because it just laughed at me with it's green power light.)
I suppose I'll give it a bit more before RMA just in case (I'm not sure how often Intel frequents these forums).
This message was posted on behalf of Intel Corporation1 of 1 people found this helpful
We have escalated your question to the Euclid engineering. We will post their response here as soon as it is available.
Intel Customer Support
Thanks. Appreciate that. Do you know "about" how long it may be by chance just so I can plan? I'd really like to get to work on my project over the weekend!
This message was posted on behalf of Intel Corporation
The feedback from the Euclid team is that it sounds like you have a severe hardware problem. Best to RMA at this point. I'm sorry about this, I know this isn't what you wanted to hear.
Intel Customer Support
It's not a hardware problem. It's a BIOS problem. There are options in there related to bootup and init that soft-brick it like this (as I found).
An RMA will work around this, but it's not going to help me when I or anyone else does this again trying to troubleshoot another problem like I was.
Can you please request that they tell me how to reset the CMOS? That will, I'm 99% certain, make this unit work again. (That's also my original question )
(also thank you!)