Cannot debug esp32

Advanced Solutions Debugging
10

Well I can only think of a few more things:

  1. When modifying the adapter speed make sure to modify the esp32-wrover.cfg, the linked topic refers to a different file because it has a different target board
  2. In the esp32-wrover.cfg, there are settings for the target flash voltage (either 1.8V or 3.3V). If I read openocd-esp32/esp32-ethernet-kit-3.3v.cfg at master · espressif/openocd-esp32 · GitHub correctly, this board needs the 3.3V config. Make sure the file is configured as in JTAG-Debugging with ESP32-WROOM-32UE - #4 by maxgerhardt.
  3. Re-Check all wires for good continuity and shortness, or replace them with new ones. Usually reading only 1’s (as in 0xFFFFFFFF) on a JTAG line indicates a bad connection (or too high adapter speed)
  4. It might just be that the tool-openocd-esp32 needs an update (latest files found in GitHub - espressif/openocd-esp32: OpenOCD branch with ESP32 JTAG support). For a test, these files can be locally replaced (in C:\Users\<user>\packages\tool-openocd-esp32. Then one can also directly make use of the new openocd config for the board by using board_debug.openocd_board = esp32-ethernet-kit-3.3v.cfg in the platformio.ini. But let’s try the above things first.