Hi there! I'm making a carrier board for the Oak Som Pro and I'd like to hard wire the BOOT pins to boot into the NOR Flash bootloader. Couple questions: 1. Want to confirm the Oak Som Pro has a factory bootloader pre-loaded on NOR flash? 2. If so, it appears from docs I need to set BOOT3 to 1.8V, and BOOT4,2,1,0,aux to GND to get 0b01000. Is this correct? [upl-image-preview uuid=f2185e8e-7d2d-4b35-8ff0-1994f13269c8 url=https://discuss.luxonis.com/assets/files/2025-12-02/1764657483-71315-image.png alt={TEXT?}] My apologies for a potentially novice set of questions!

Configure BOOT Pins To Hard Boot From NOR Flash Bootloader

CalebBergquist

Hi there!

I'm making a carrier board for the Oak Som Pro and I'd like to hard wire the BOOT pins to boot into the NOR Flash bootloader. Couple questions:

Want to confirm the Oak Som Pro has a factory bootloader pre-loaded on NOR flash?
If so, it appears from docs I need to set BOOT3 to 1.8V, and BOOT4,2,1,0,aux to GND to get 0b01000. Is this correct?

My apologies for a potentially novice set of questions!

jakaskerl

CalebBergquist
NOR is not flashed by default.
You can boot to USB mode, then flash the NOR. Otherwise it looks great.

Thanks,
Jaka

CalebBergquist

I see!

Sorry if this is now out of context for this thread, but I think I'm actually pivoting to USB only boot. The plan is to have a CM5 always be in charge of loading in the pipeline to the OakD, but I was wondering- is there anything that is lost with a USB only boot and not having the ability to operate standalone with the program loaded into oakD SoM Pro internal EMMC? To my knowledge, it seems that standalone mode is most useful when there isn't a nearby host computer- but that is not my case.

Is a USB only boot mode selection (0b10110) when a host computer will always be nearby a sane strategy?