有调过ESP32_CAM的老师吗，make flash monitor时出现如下错误，...

海韵_CSz2o

ai-thinker@aithinker:~/esp_demo/ESP32_CAMERA_QR$ make flash monitor
^[[3~WARNING: Toolchain version is not supported: 1.22.0-73-ge28a011
Expected to see version: 1.22.0-80-g6c4433a
Please check ESP-IDF setup instructions and update the toolchain, or proceed at your own risk.
WARNING: Toolchain version is not supported: 1.22.0-73-ge28a011
Expected to see version: 1.22.0-80-g6c4433a
Please check ESP-IDF setup instructions and update the toolchain, or proceed at your own risk.
Flashing binaries to serial port /dev/ttyUSB0 (app at offset 0x10000)...
esptool.py v2.3.1
Traceback (most recent call last):
  File "/home/ai-thinker/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2637, in <module>
    _main()
  File "/home/ai-thinker/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2630, in _main
    main()
  File "/home/ai-thinker/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2355, in main
    esp = chip_class(args.port, initial_baud, args.trace)
  File "/home/ai-thinker/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 193, in __init__
    self._port = serial.serial_for_url(port)
  File "/usr/lib/python2.7/dist-packages/serial/__init__.py", line 88, in serial_for_url
    instance.open()
  File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 268, in open
    raise SerialException(msg.errno, "could not open port {}: {}".format(self._port, msg))
serial.serialutil.SerialException: [Errno 2] could not open port /dev/ttyUSB0: [Errno 2] No such file or directory: '/dev/ttyUSB0'
/home/ai-thinker/esp/esp-idf/components/esptool_py/Makefile.projbuild:54: recipe for target 'flash' failed

abcrazy

could not open port /dev/ttyUSB0

串口无法打开。你设置的串口路径是 linux 系统下的 /dev/ttyUSB0
windows 下的是 com1 或COM2或COM3等等

你的固件已经编译好了，就差刷写进去。
建议你直接用官方刷写软件，少了刷前检查的步骤，会更快下载。

fzyyy

abcrazy 发表于 2019-8-3 19:37
could not open port /dev/ttyUSB0

串口无法打开。你设置的串口路径是 linux 系统下的 /dev/ttyUSB0

那应该解决，我新手也是遇到这个问题？

fzyyy

楼主解决了吗，我新手也遇到这了问题

abcrazy

fzyyy 发表于 2019-10-29 09:12
楼主解决了吗，我新手也遇到这了问题

他的问题是无法打开串口，原因有2：
1.没有正确安装USB串口驱动
2.串口已经被其他应用程序打开占用，先到先得使用权，后面来的应用程序不会让给你使用这个串口。