ESP32 Forum

on Windows 10, using Eclipse esp idf
if press the restart(en) button of ESP32,

Will see below error
Serial port COM3
Connecting......................................

A fatal error occurred: Failed to connect to ESP32: No serial data received.
For troubleshooting steps visit: https://github.com/espressif/esptool#troubleshooting
CMake Error at run_serial_tool.cmake:56 (message):
python
C:/Users/Jesse/Desktop/esp-idf/components/esptool_py/esptool/esptool.py
--chip esp32 failed


FAILED: CMakeFiles/flash


If not press the "restart" button of ESP32, error as shown below:

Serial port COM3
Connecting......................................

A fatal error occurred: Failed to connect to ESP32: Wrong boot mode detected (0x13)! The chip needs to be in download mode.
For troubleshooting steps visit: https://github.com/espressif/esptool#troubleshooting
CMake Error at run_serial_tool.cmake:56 (message):
python
C:/Users/Jesse/Desktop/esp-idf/components/esptool_py/esptool/esptool.py
--chip esp32 failed


FAILED: CMakeFiles/flash

I review the doc, the cable may be the problem, but I have no idea how to test the output voltage and current.
Thanks.