AVR upload suddenly stopped working

1

For months my platformio.ini file was providing me with consistently reliable build and upload on my custom ATmega38PB PCB with Arduino as ISP. Then suddenly yesterday morning when I started VSCode, PlatformIO updated itself to 3.6.0a10 and my uploads stopped working due to some extraneous double-quotes being inserted into the command stream. Can anyone help fix this?

This is my build/upload command:

pio run -t program --verbose

I now get:

avrdude: ser_open(): can't open device "\\.\com7 -b115200 -u -Ulock:w:0xCF:m -Uhfuse:w:0xD7:m -Uefuse:w:0xF6:m -Ulfuse:w:0xE2:m": The system cannot find the file specified.

because the avrdude.exe command line is this:

avrdude ""-Pcom7" "-b115200" -u -Ulock:w:0xCF:m -Uhfuse:w:0xD7:m -Uefuse:w:0xF6:m -Ulfuse:w:0xE2:m" -v -p atmega328pb -C C:\Users\jon\.platformio\packages\tool-avrdude\avrdude.conf -c stk500v1 -U flash:w:.pioenvs\atmega328pb\firmware.hex:i

The relevant part of my platformio.ini is this:

[env:atmega328pb]
platform = atmelavr
board = atmega328pb
framework = arduino
monitor_port = com6
monitor_speed = 115200
upload_port = com7
upload_speed = 19200
board_build.mcu=atmega328pb
board_build.f_cpu=8000000L
upload_protocol = stk500v1
; upload_protocol=usbtiny
upload_flags = -P$UPLOAD_PORT -b$UPLOAD_SPEED -u -Ulock:w:0xCF:m -Uhfuse:w:0xD7:m -Uefuse:w:0xF6:m -Ulfuse:w:0xE2:m
2

Could you split upload_flags to 1 option per 1 line? it will force PlatformIO to use flags as an array:

[env:myenv]
upload_flags = 
  -P$UPLOAD_PORT
  -b$UPLOAD_SPEED
  -u
  -Ulock:w:0xCF:m
  -Uhfuse:w:0xD7:m
  -Uefuse:w:0xF6:m
  -Ulfuse:w:0xE2:m
3

That worked. Thank you very much Ivan. Hopefully the documentation can be updated to reflect this advice soon.

4

Thanks! Fixed in Redirecting...

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