Programming eFUSE bits on VisionSOM-6ULL
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Programming eFUSE bits on VisionSOM-6ULL
This article describes the programming eFUSE on VisionSOM-6ULL with VisionCB-6ULL-STD.
| NOTE! The described operation may be performed only once and cannot be reversed! |
Programming iMX6ULL OTP fuses with u-boot
If board is already programmed, stop it during boot in u-boot bootloader by pressing a key when prompted.
To write fuse, use one of the following u-boot commands:
- Command to configure VisionSOM-6ULL to boot from on board uSD card:
fuse prog -y 0 5 0x2840 fuse prog -y 0 6 0x10
- Command to configure VisionSOM6ULL to boot from on board eMMC memory:
fuse prog -y 0 5 0x2860 fuse prog -y 0 6 0x10
If device is not programmed yet, you can use serial download mode, as described here: Writing_VisionSOM-6ULL_system_image_to_eMMC_memory and then program fuses.
Programming iMX6ULL OTP fuses with UUU tool
It is also possible to program OTP fuses via NXP manufacturing tool (uuu) For details see the manual in attached archive.
