TUSB4020BI: TUSB4020BIPHP, OTP programming question

Frantisek Zabecky

Expert 2030 points

Part Number: TUSB4020BI

Hello,

Does there exist different way how to program OTP memory than programming via USB vendor-defined requests. If so, can you provide me guide?

Best regards,

Frantisek

2 months ago

0 Brian Zhou 2 months ago

TI__Guru** 113075 points

For OTP, if it's already 1, you can not get it back to 0.

We do have efuse tool for OTP, which bit do you plan to change?

Regards

Brian

0 Frantisek Zabecky 2 months ago in reply to Brian Zhou

Expert 2030 points

Our customer plans to program OTP in blank/virgin device. The programming shall be done in our programming tools, because of mass programming in automated machine.

Regards,

Frantisek

0 Brian Zhou 2 months ago in reply to Frantisek Zabecky

TI__Guru** 113075 points

Hi Frantisek:

Please accept my friendship request and I will send Efuse tool and user guide

Important Note: Changes made on the OTP memory are permanent and cannot be undone, so users will be prompted to confirm the programming process to avoid accidental changes to the device configuration..

Regards

brian

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TUSB4020BI: TUSB4020BIPHP, OTP programming question