Can't Upload to Adafruit Feather M0

[gfvalvo]

Uploading to my Adafruit Feather M0 works fine in the Arduino IDE. With Sloeber, not so much.

I have "https://adafruit.github.io/arduino-board-index/package_adafruit_index.json" included in "Third party index URLs" and the latest packages selected under "Platforms and Boards".

The code compiles fine, but pukes on upload attempt. Displayed in Console:

Starting upload
using arduino loader
Forcing reset using 1200bps open/close on portCOM24
PORTS { COM1, COM3, COM13, COM24,} / { config error:, see https://github.com/jantje/arduino-eclipse-plugin/issues/252,} => { config error:, see https://github.com/jantje/arduino-eclipse-plugin/issues/252,}
Comport reset took250ms
Using comportconfig error: from now onwards
Ending reset

Launching/bossac --port=config error: -U true -i -e -w -v D:\SloeberWorkspace\testSleep/Release/testSleep.bin -R
Output:
failed to upload

Could be something with the complex dual port USB arrangement of this chip. Ardunio has no problem with it, but I really need to use Sloeber.

Thanks.

[jantje]

Have you looked at #252 ?

[gfvalvo]

I did. But, I'm not sure what part is applicable. Nor am I interested in reading a novel. All I want to do is upload to the Feather M0. Is that possible? If so, are there simple instructions for doing it?

[gfvalvo]

So, is there fix for the Sloeber bug preventing upload to this board?

First time it's happened for me. Uploads have been working fine with Uno, Teensy 3.2, and ESP8266 Feather Huzzah.

[gfvalvo]

OK, there appears to be a workaround -- manually run the version of bossac installed by Arduino IDE and point it to the .bin file generated by the build Sloeber:

D:\arduino-1.8.5\portable\packages\arduino\tools\bossac\1.7.0/bossac -i -d --port=COM23 -U true -i -e -w -v D:\SloeberWorkspace\testSleep/Release/testSleep.bin -R

You can create a .bat file to do this. You must manually put the board in bootloader mode (double click the reset button) before sending the command.

[jantje]

I think this is actually the same thing as #1035

[jantje]

This is actually a problem in the json file provided by adafruit

Workaroud:
Install "Arduino SAMD Boards (32-bits ARM Cortex-M0+)" version "1.6.7". (which spoecifies bossac 1.7 as tool)
For all affected existing projects open project properties-Arduino->apply and ok
You can safely deinstall "Arduino SAMD Boards (32-bits ARM Cortex-M0+)" as this will not remove the installed tools.

[jantje]

Eventhough this is not a Sloeber limitation I mark it as such because this makes it more visible as a problem