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platformio / platform-atmelavr

Atmel AVR: development platform for PlatformIO
https://registry.platformio.org/platforms/platformio/atmelavr
Apache License 2.0
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Programming with non serial prgrammer broken #120

Closed koppa closed 5 years ago

koppa commented 5 years ago

Version: platform-atmelavr stable and master.

When using a avr programmer without serial interface like the dragon_isp, the following lines fail in builder/main.py:

        if not upload_options.get("disable_flushing", False) \
            and not env.get("UPLOAD_PORT", "").startswith("net:"):
                pass
            env.FlushSerialBuffer("$UPLOAD_PORT")

FlushSerialBuffer will be called and fails, due to upload_port=usb (in the project config):

*** [upload] could not open port usb: [Errno 2] No such file or directory: 'usb'

When disabling the FlushSerialBuffer for usb devices, everything works correctly.

ivankravets commented 5 years ago

Do you use pio run -t program instead of pio run -t upload? See https://docs.platformio.org/en/latest/platforms/atmelavr.html#upload-using-programmer

koppa commented 5 years ago

No I used pio run -t upload.

The problem is the code for flushing the serial port is executed, and for user it is not obvious, that this part fails. In my opinion flushing should only be done for programmers, where the build script is sure, that this is a serial device (maybe only do it explicitly?)

ivankravets commented 5 years ago

Please use pio run -t program.