burn mac address into fuse and lock it

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burn mac address into fuse and lock it

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yenchao
Contributor IV

Hi all,

I'm working on imx6q

I want to burn mac address into fuse and lock it

because it only can write one time

so I have to confirm my procedure

for example

I want to write mac address 11:22:33:44:55:66 into fuse

below are my steps

1. echo 0x33445566 > HW_OCOTP_MAC0

2. echo 0x1122 > HW_OCOTP_MAC1

3. echo 0x100 > HW_OCOTP_LOCK

is my procedure correct?

any advices and suggestions will be greatly appreciated!!

thx

Yen

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art
NXP Employee
NXP Employee

It's not a good idea to burn fuses when the OS is running. It's better to use the 'fuse' commands in Uboot. For more information, type 'help fuse' in the Uboot command prompt.


Have a great day,
Artur

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1,710 Views
yenchao
Contributor IV

Hi Artur,

How about burn fuses from mfgtools?

Is it good way?

Thx

Yen

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art
NXP Employee
NXP Employee

Yes, this is a good way.

Best Regards,

Artur

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1,709 Views
yenchao
Contributor IV

Hi Artur,

Got it

Thank you very much^^

Yen

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