Hi NXP Team,
We are trying to fuse MAC ID to the imx6q processor, the following is the behaviour
Existing MAC ID:
=> printenv
ethaddr=00:23:4a:f0:00:01
Trying to fuse the same MAC ID in the first attempt
=> fuse prog 4 2 0x4AF00001
=> fuse prog 4 3 0x0023
=> printenv
ethaddr=00:23:4a:f0:00:01
Trying to fuse another MAC ID in the second attempt
=> fuse prog 4 2 0x4AF00007
=> fuse prog 4 3 0x0023
=> printenv
ethaddr=00:23:4a:f0:00:07
So the MAC ID was updated
Third attempt to fuse the MAC ID with the first MAC address
=> fuse prog 4 2 0x4AF00001
=> fuse prog 4 3 0x0023
=> printenv
ethaddr=00:23:4a:f0:00:07
Observation we made
1) First Attempt - Fuse Not happened
2) Second Attempt - Fuse Happened
3) Third Attempt - Fuse not happened
The above is not expected behaviour, MAC id is OTP (one-time programmable ) single non-volatile memory, it should happen in the first attempt only but it happens in the second attempt
For complete logs, please refer to the attachment
Please provide us with the user document for fusing the Mac address in the imx6q processor
If possible please share with us the steps/procedure for fusing the MAC address on the first attempt
We are waiting for your feedback
