ESP32 Forum

I'm currently experiencing an issue with debugging my ESP32-C3 using the ESP-Prog. I've been encountering an error where the ESP-Prog shows all zeroes during the debug process.

Here's the setup and steps I've already taken:

• I'm using MacOS Ventura 13.4.1. on my MacBook Pro M1, I'm editing the code in Visual studio code with the help of ESP-IDF extension

• I've triple checked connection between the ESP32 C3 and the ESP-Prog and it is correct /list]
  • The correct board (ESP32 C3) is selected in my IDE.
  • I've powered ESP32-C3 and ESP Prog independently to eliminate any power related issues.
  • I've erased the flash memory of my ESP32 C3 using esptool.py, but the problem persists.
  • I'm using the latest version of the ESP-IDF
  • I've disconnected all peripherals from the GPIO pins
  • I'm trying to debug sample code hello-world from Espressif sample library, I'm able to flash the MCU but I'm not able to debug it
  Despite following these steps, I'm still getting all zeroes from the ESP-Prog during debugging.I'm afraid that there is an driver incompatibility.
  
  I would greatly appreciate any help or suggestions on how to resolve this issue.
  
  Here is the message from ESP-IDF:
  
  /Users/ristiale/.espressif/tools/openocd-esp32/v0.12.0-esp32-20230419/openocd-esp32/bin/openocd
  
  [Debug Adapter]
  DEBUG_ADAPTER_STARTED
  2023-07-19 22:30:04,280 - Debug Adapter (main) - CRITICAL - Debug adapter -> Extension: DEBUG_ADAPTER_STARTED
  
  [Debug Adapter]
  DEBUG_ADAPTER_READY2CONNECT
  2023-07-19 22:30:04,282 - Debug Adapter (main) - CRITICAL - Debug adapter -> Extension: DEBUG_ADAPTER_READY2CONNECT
  
  [OpenOCD]
  Info : accepting 'gdb' connection on tcp/3333
  Error: Target not examined yet
  Error executing event gdb-attach on target esp32c3:
  
  Warn : No symbols for FreeRTOS!
  Error: Target not halted
  Error: auto_probe failed
  Error: Connect failed. Consider setting up a gdb-attach event for the target to prepare target for GDB connect, or use 'gdb_memory_map disable'.
  Error: attempted 'gdb' connection rejected
  
  [Debug Adapter]
  DEBUG_ADAPTER_STOPPED
  2023-07-19 22:30:14,505 - Debug Adapter (main) - CRITICAL - Debug adapter -> Extension: DEBUG_ADAPTER_STOPPED
  
  [Stopped] : ESP-IDF Debug Adapter

The ESP32-C3 routes its JTAG to its internal USB-serial-JTAG peripheral by default; if you want to use an external JTAG adapter you need to burn a fuse. (Or alternatively, use the USB-serial-JTAG peripheral to debug the thing.)

Thank you very much for quick response. Your advice solved my problem! After I've burnt the eFuse with command:
"espefuse.py --port /dev/cu.wchusbserial533B0062341 burn_efuse DIS_USB_JTAG 1", the ESP prog and ESP32-C3 started to communicate.

Note for others reading this post: The process is irreversible, you cannot change the bit back to 0.