4 ms·
> There are 256 bits in the set of ODM_RESERVED fuses, and there are 8 ODM_RESERVED. This allows for 32 fuses, or 32 future FW versions (provided they burn a fu
by wolfgke 6y ago
> There are 256 bits in the set of ODM_RESERVED fuses, and there are 8 ODM_RESERVED. This allows for 32 fuses, or 32 future FW versions (provided they burn a fuse on every major release).
Can someone explain how the author gets from the numbers 256 and 8 to the count of 32 fuses?
- nitrogen 6y agoMaybe that's 256 bits divided into eight chunks of 32?
- indigo945 6y agoI think it's the other way around, there's 32 fuse-bytes of 8 fuse-bits each, adding up to 256 bits of PROM.
- marcan_42 6y agoFuses are in 32 bit words. There are 8 such words available for ODM usage, giving a total of 256 fuse bits. However, of those only one word is used for the anti-downgrade stuff. So that's just 32 firmware levels.