Configure Other JTAG Interface
For guidance about which JTAG interface to select to enable operation with OpenOCD and ESP32, refer to section Selecting JTAG Adapter. Then follow the three configuration steps below to get it working.
Configure Hardware
Identify all pins/signals on JTAG interface and ESP32 board that should be connected to establish communication.
ESP32 Pin
JTAG Signal
MTDO / GPIO15
TDO
MTDI / GPIO12
TDI
MTCK / GPIO13
TCK
MTMS / GPIO14
TMS
GND
GND
Verify if ESP32 pins used for JTAG communication are not connected to some other hardware that may disturb JTAG operation.
Connect identified pin/signals of ESP32 and JTAG interface.
Configure Drivers
You may need to install driver software to make JTAG work with computer. Refer to documentation of your JTAG adapter for related details.
Connect
Connect JTAG interface to the computer. Power on ESP32 and JTAG interface boards. Check if the JTAG interface is visible on the computer.
To carry on with debugging environment setup, proceed to section Run OpenOCD.