Burning ODM_RESERVED fuses after ODM_PRODUCTION_MODE is not working

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
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24

actually, we had some internal discussions.
the recommended way (especially for Xavier series) is to burn all fuses together instead of burning fuses step-by-step.

25

Hi JerryChang,

Thatā€™s not a solution. The manual clearly states ā€œThe following fuses are available for the system designer to use for burning during the product lifetime.ā€ in a chapter titled ā€œODM Field Programmable Fusesā€. With these fuses we cannot do the burning in a one step approach. They need to be available during the product lifetime, and lockable separately with the FUSE_ODM_LOCK function. I think we are going in loops.

This topic has been open for 9 months now, and nvidia is not doing much to make it move forward. I think this needs to improve if the Jetson is targeted for use in industrial products. Do you have any support channels other than this forum?

How do you implement your ratcheting mechanism? This also make use of these fuses if Iā€™m not mistaken. So surely itā€™s not prevented by hardware.

26

hello h123,

weā€™re able to burn reserved ODM fuse after production mode fuse enabled via recovery method (through USB).
this might be a permission issue, weā€™ll need more time for investigation.

30

Hi JerryChang,

Any update on this topic?

31

Hi JerryChang,

Any update on when we can expect a fix for this?

For a new product we are using the Orin Nano, and we are also planning to use the ODM fuses during the product lifetime. Can we assume that this works on the Orin Nano?

32

hello h123,

thatā€™s due to the firewall settings to block users updating ODM RESERVED fuses from kernel.
unfortunately, we donā€™t have patch to address this issue, itā€™s still under investigation.

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