Can I disable ESP32 C3 \ C6 USB JTAG programmatically, leaving USB Serial only?

filimonic
Posts: 6
Joined: Tue Jun 18, 2019 9:34 pm

Can I disable ESP32 C3 \ C6 USB JTAG programmatically, leaving USB Serial only?

Postby filimonic » Fri Sep 26, 2025 7:10 pm

Can I disable ESP32 C3 \ C6 USB JTAG programmatically, leaving USB Serial only?

Minatel
Espressif staff
Espressif staff
Posts: 432
Joined: Mon Jan 04, 2021 2:06 pm

Re: Can I disable ESP32 C3 \ C6 USB JTAG programmatically, leaving USB Serial only?

Postby Minatel » Tue Sep 30, 2025 7:40 am

Hi,

You can disable it by using the eFuse, however, once you disable it, you can't revert, depending on the eFuse you have used to disable the JTAG.

Debug Interfaces

Alternatively, see this: hmac-for-enabling-jtag if you have used the `SOFT_DIS_JTAG` eFuse.

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