How can I modify the MAC address written on imx6 ROM?

davekim — Wed, 26 Oct 2016 02:29:15 GMT

To change the MAC address, I had MAC Writh the following instruction as below:

[Mac Address Command for MFG Tool] --> MAC Address : 00:01:6F:01:FF:FF
<CMD state="Updater" type="push" body="$ ls /sys/fsl_otp ">Showing HW_OCOTP fuse bank</CMD>
<CMD state="Updater" type="push" body="$ echo 0x6F01FFFF > /sys/fsl_otp/HW_OCOTP_MAC0">write 0x6F01FFFF to HW_OCOTP_MAC0 fuse bank</CMD>
<CMD state="Updater" type="push" body="$ echo 0x0001 > /sys/fsl_otp/HW_OCOTP_MAC0">write 0x0001 to HW_OCOTP_MAC1 fuse bank</CMD>
<CMD state="Updater" type="push" body="$ cat /sys/fsl_otp/HW_OCOTP_MAC0">Read value from HW_OCOTP_MAC0 fuse bank</CMD>

I understand that it is can not be changed again if the address was used once,
Is there any way to translate them into instructions?

Thanks..

Re: How can I modify the MAC address written on imx6 ROM?

Yuri — Wed, 26 Oct 2016 06:54:59 GMT

Hello,

basically, non-burned bits in the fuses may be additionally burned.

Have a great day,
Yuri

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topic Re: How can I modify the MAC address written on imx6 ROM? in i.MX Processors

How can I modify the MAC address written on imx6 ROM?

Re: How can I modify the MAC address written on imx6 ROM?