[Bug report] Cannot upload firmware to Arduino Leonardo. Port enumerated too quickly

[maziu]

Configuration

Operating system: Windows 7 64 bit

PlatformIO Version (platformio --version): 2.9.4

Description of problem

Cannot upload software to Arduino Leonardo. Instead of waiting for new port, avrdude is called with old port parameter.

Steps to Reproduce

1. Connect arduino leonardo
2. Try to upload any example project

Actual Results

Auto-detected UPLOAD_PORT/DISK: COM7
Waiting for the new upload port...
"C:\Users\Mateusz\.platformio\packages\tool-avrdude\avrdude" -v -p atmega32u4 -C "C:\Users\Mateusz\.platformio\packages\tool-avrdude\avrdude.conf" -c avr109 -b 57600 -P "COM7" -D -U flash:w:.pi
oenvs\leonardoeth\firmware.hex:i

avrdude: Version 6.0.1, compiled on Apr  3 2014 at 23:12:16
System wide configuration file is "C:\Users\Mateusz\.platformio\packages\tool-avrdude\avrdude.conf"
MS-DOS style path detected: C:\Users\Mateusz\.platformio\packages\tool-avrdude\avrdude.conf
Preferred POSIX equivalent is: /tool-avrdude/avrdude.conf
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch

cygwin warning:
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames

avrdude: ser_open(): can't set com-state for "\\.\COM7"
avrdude: ser_send(): write error: sorry no info avail
Using Port                    : COM7
Using Programmer              : avr109
Overriding Baud Rate          : 57600
scons: *** [upload] Error 1

In device manager i see that COM7 disappears and for moment COM9 appears. SW should be uploaded to COM9.
From arduino IDE it works fine, avrdude is called with COM9 parameter.

I fixed it by modifying platformio\builder\tools\pioupload.py , function WaitForNewSerialPort. I added 1 second delay at beginning of this function, so there's time for port to enumerate, but I'm almost sure that this is not correct solution (i mean, it works, but it's just quickfix).
After this change it works fine (please look at function below)

def WaitForNewSerialPort(env, before):
    print "Waiting for the new upload port..."
    prev_port = env.subst("$UPLOAD_PORT")
    new_port = None
    elapsed = 0
    sleep(1)
    while elapsed < 5 and new_port is None:
        now = get_serialports()
        for p in now:
            if p not in before:
                new_port = p['port']
                break
        before = now
        sleep(0.25)
        elapsed += 0.25

    if not new_port:
        for p in now:
            if prev_port == p['port']:
                new_port = p['port']
                break

    if not new_port:
        env.Exit("Error: Couldn't find a board on the selected port. "
                 "Check that you have the correct port selected. "
                 "If it is correct, try pressing the board's reset "
                 "button after initiating the upload.")

    return new_port

[ivankravets]

Thanks a lot for the report.

1. Please disable your hook with # sleep(1)
2. Try to increase timeout from 5 sec to 10sec. while elapsed < 10 and new_port is None:

Does it work for you?

[maziu]

I did it.
No, it does not help.
This lines

Waiting for the new upload port...
"C:\Users\Mateusz\.platformio\packages\tool-avrdude\avrdude" -v -p atmega32u4 -C "C:\Users\Mateusz\.platformio\packages\tool-avrdude\avrdude.conf" -c avr109 -b 57600 -P "COM7" -D -U flash:w:.pioenvs\leonardoeth\firmware.hex:i

are executed directly one after other (maybe 50-100ms delay)

[ivankravets]

Please re-test the latest http://docs.platformio.org/en/latest/installation.html#development-version

[valabrijesh]

avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch

     System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

     Using Port                    : COM9
     Using Programmer              : arduino
     Overriding Baud Rate          : 115200

avrdude: ser_open(): can't set com-state for "\.\COM9"

avrdude done. Thank you.

Code is not uploaded on arduino uno board. Help me

[robertguyser]

I am having this problem in December 2019. Is there any advice on how to fix it?

[ivankravets]

Do you mean this issue platformio/platform-atmelavr#172?

[maziu]

@robertguyser
Did you try my quickfix with sleep(1) before while?