由于ESP32-CAM在最后烧录总出现串口问题问题采用以下方法

 1 App "esp32-cam-demo" version: 0d87564-dirty
 2 Flashing binaries to serial port ‘/dev/ttyUSB0‘ (app at offset )...
 3 usage: esptool write_flash [-h] [--erase-all]
 4                            [--flash_freq {keep,40m,26m,20m,80m}]
 5                            [--flash_mode {keep,qio,qout,dio,dout}]
 6                            [--flash_size FLASH_SIZE]
 7                            [--spi-connection SPI_CONNECTION] [--no-progress]
 8                            [--verify] [--encrypt]
 9                            [--encrypt-files <address> <filename> [<address> <filename> ...]]
10                            [--ignore-flash-encryption-efuse-setting]
11                            [--compress | --no-compress]
12                            <address> <filename> [<address> <filename> ...]
13 esptool write_flash: error: argument <address> <filename>: Address "/home/xingxingye/esp32cam/demo/ESP32_CAMERA_QR/build/esp32-cam-demo.bin" must be a number
14 /mnt/hgfs/share/Ai-Thinker-Open_ESP32-CAMERA_LAN/esp-idf/components/esptool_py/Makefile.projbuild:105: recipe for target ‘flash‘ failed
15 make: *** [flash] Error 2