Debug Espressif ESP32

Enabling external JTAG interface

ESP32 devices have an embedded JTAG-adapter that is connected to JTAG-pins internally.To enable connection to the external J-Link probe, JTAG interface must be switched to GPIO pins.
External JTAG interface is controlled via burning eFuses. Information on how to burn eFuse configuration can be found at the following link: Configure eFuses

Disabling hardware stack protection

When debugging applications compiled with ESP-IDF framework, "SDK Config -> Component config -> ESP System Settings -> Hardware stack guard" option must be turned off to prevent core panic on writes to SP register(performed by J-Link logic).