Error uploading to Arduino Portenta H7

Using Arduino Avrdude, stk500, Bootloader issues
1

Hello,

I'm trying to upload to an Arduino Portenta H7 and I'm getting the following error:

dfu-util: Warning: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release
dfu-util: No DFU capable USB device available
Failed uploading: uploading error: exit status 74

I'm getting this error with a sketch I wrote, and an empty sketch. I'm able to upload to other boards. I have the board and port selected in the IDE.

Any help would be greatly appreciated.

Thank you.

2

Hi @mfusco. I'm going to ask you to post the full verbose output from an upload attempt.

:exclamation: This procedure is not intended to solve the problem. The purpose is to gather more information.

Please do this:

  1. Select File > Preferences... (or Arduino IDE > Settings... for macOS users) from the Arduino IDE menus.
    The "Preferences" dialog will open.
  2. Uncheck the box next to Show verbose output during: ☑ compilation in the "Preferences" dialog.
  3. Check the box next to Show verbose output during: ☐ upload.
  4. Click the "OK" button.
  5. Attempt an upload, as you did before.
  6. Wait for the upload to fail.
  7. You will see a "Upload error: ..." notification at the bottom right corner of the Arduino IDE window. Click the "COPY ERROR MESSAGES" button on that notification.
  8. Open a forum reply here by clicking the "Reply" button.
  9. Click the <CODE/> icon on the post composer toolbar.
    This will add the forum's code block markup (```) to your reply to make sure the error messages are correctly formatted.
    Code block icon on toolbar
  10. Press the Ctrl+V keyboard shortcut (Command+V for macOS users).
    This will paste the error output from the upload into the code block.
  11. Move the cursor outside of the code block markup before you add any additional text to your reply.
  12. Click the "Reply" button to post the output.
3

Hello,

Thank you for your response. Below is the error message upon changing that setting and attempting to upload the sketch.

Performing 1200-bps touch reset on serial port /dev/cu.usbmodem1101
Waiting for upload port...
No upload port found, using /dev/cu.usbmodem1101 as fallback
dfu-util: Warning: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release
"/Users/marcofusco/Library/Arduino15/packages/arduino/tools/dfu-util/0.10.0-arduino1/dfu-util" --device 0x2341:0x035b -D "/private/var/folders/jd/lw1_k6l12_5_bb071x6y83q80000gn/T/arduino/sketches/65E0A80D0C5E7A8AC5C93251EFEA85B8/accelerometer_data_to_JSON.ino.bin" -a0 --dfuse-address=0x08040000:leave
dfu-util 0.10-dev

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2021 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

dfu-util: No DFU capable USB device available
Failed uploading: uploading error: exit status 74

Edit: In a separate popup window, I get this error:

Timeout. The IDE has not received the 'success' message from the monitor after successfully connecting to it. Could not connect to /dev/cu.usbmodem1101 serial port.