M5Burner on Apple M2 Ventura 13.6 Is Unstable

[krzychb]

Hi,

I hope you can help me with the following issue:

Controller tested: ATOMS3 and ESP32-S3-BOX-3
Mac OS: Ventura 13.6
Host computer: MacBook Air, M2 silicon (two computers tested)

After the controller is connected, M5Burner repeatedly shows the message: "Found New Device"

It is impossible to flash the controller with a demo program. The following message is shown after the flashing failed:

--chip auto --port /dev/tty.usbmodem11412101 --baud 1500000 --before default_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x000 /Applications/M5Burner.app/Contents/Resources/packages/firmware/ffd26b8ba73aefa2a964e2f56d39f1e6.bin
esptool.py v4.7-dev
Serial port /dev/tty.usbmodem11412101
Connecting...
.
.
.
.
.
.
.
.
.
.
.

Traceback (most recent call last):
  File "/Applications/M5Burner.app/Contents/Resources/packages/tool/esptool.py", line 20, in <module>
    esptool._main()
  File "/Applications/M5Burner.app/Contents/Resources/packages/tool/esptool/__init__.py", line 1073, in _main
    main()
  File "/Applications/M5Burner.app/Contents/Resources/packages/tool/esptool/__init__.py", line 678, in main
    esp = esp or get_default_connected_device(
  File "/Applications/M5Burner.app/Contents/Resources/packages/tool/esptool/__init__.py", line 956, in get_default_connected_device
    _esp = detect_chip(
  File "/Applications/M5Burner.app/Contents/Resources/packages/tool/esptool/cmds.py", line 94, in detect_chip
    detect_port.connect(connect_mode, connect_attempts, detecting=True)
  File "/Applications/M5Burner.app/Contents/Resources/packages/tool/esptool/loader.py", line 647, in connect
    last_error = self._connect_attempt(reset_strategy, mode)
  File "/Applications/M5Burner.app/Contents/Resources/packages/tool/esptool/loader.py", line 548, in _connect_attempt
    self._port.flushOutput()
  File "/Applications/M5Burner.app/Contents/Resources/packages/tool/serial/serialutil.py", line 587, in flushOutput
    self.reset_output_buffer()
  File "/Applications/M5Burner.app/Contents/Resources/packages/tool/serial/serialposix.py", line 604, in reset_output_buffer
    termios.tcflush(self.fd, termios.TCOFLUSH)
termios.error: (6, 'Device not configured')

Flashing the same controllers from a Windows PC works without any issues.
Flashing the same controllers using ESP-IDF and MackBook works without any issues.

[kuriko]

@krzychb
M5Burner is not very stable on macOS at the moment, but this problem does not occur on my 2021 MacBook Pro with macOS Sequoia 15.1

[ajb2k3]

@krzychb S3 based devices are different to previous gen devices.
You have to hold the boot button down to put them into boot loader mode like Raspberry pi's

[krzychb]

@ajb2k3 and @kuriko,

I resolved the issue with flashing by manually putting the devices into bootloader mode.

In particular, for ATOMS3 the trick was to "press and hold the reset button (about 2 seconds) until the internal green LED lights up" as written in the manual :)

Thank you for your replies and kind help!