"Permission denied" on the file adafruit-nrfutil

Development Platforms
1

I’m receiving the following message when I try to build and download a simple project (blinky) to an Adafruit nRF52840 Express board:

sh: /Users/chrisgr/.platformio/packages/framework-arduinoadafruitnrf52/tools/adafruit-nrfutil/macos/adafruit-nrfutil: Permission denied

The file “adafruit-nrfutil” in the .platformio directory does exist and is accessible because I’m able to open it with a text editor.

What is the problem?

2

Are you able to execute the binary in a shell without problems?

What are the permissions on the file? (ls -la /Users/chrisgr/.platformio/packages/framework-arduinoadafruitnrf52/tools/adafruit-nrfutil/macos/adafruit-nrfutil)

3

The permissions are -rw-r–r-- .

I’m not able to execute it because it’s not an executable file. However am able to open it in a text editor and see that it contains ascii hex.

I’m not sure why platformio is saying permission denied when it’s a text file and the permissions give read access.

4

Read but somehow not execute. x is missing.

Can you chmod +x /Users/chrisgr/.platformio/packages/framework-arduinoadafruitnrf52/tools/adafruit-nrfutil/macos/adafruit-nrfutil the file manually?

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5

I changed the permissions and it did build successfully this time, but did not upload successfully. This is the log:

Configuring upload protocol…
AVAILABLE: jlink, nrfjprog, nrfutil, stlink
CURRENT: upload_protocol = nrfutil
Looking for upload port…
Auto-detected: /dev/cu.usbmodemC19DBF8ED7C01
Forcing reset using 1200bps open/close on port /dev/cu.usbmodemC19DBF8ED7C01
Waiting for the new upload port…
Uploading .pio/build/adafruit_feather_nrf52840/firmware.zip
Upgrading target on /dev/cu.usbmodemC19DBF8ED7C01 with DFU package /Users/chrisgr/Documents/PlatformIO/Projects/feather/.pio/build/adafruit_feather_nrf52840/firmware.zip. Flow control is disabled, Single bank, Touch disabled

Timed out waiting for acknowledgement from device.
Failed to upgrade target. Error is: No data received on serial port. Not able to proceed.
Traceback (most recent call last):
File “nordicsemi/main.py”, line 294, in serial
File “nordicsemi/dfu/dfu.py”, line 235, in dfu_send_images
File “nordicsemi/dfu/dfu.py”, line 200, in _dfu_send_image
File “nordicsemi/dfu/dfu_transport_serial.py”, line 179, in send_start_dfu
File “nordicsemi/dfu/dfu_transport_serial.py”, line 243, in send_packet
File “nordicsemi/dfu/dfu_transport_serial.py”, line 282, in get_ack_nr
nordicsemi.exceptions.NordicSemiException: No data received on serial port. Not able to proceed.

Possible causes:

  • Selected Bootloader version does not match the one on Bluefruit device.
    Please upgrade the Bootloader or select correct version in Tools->Bootloader.
  • Baud rate must be 115200, Flow control must be off.
  • Target is not in DFU mode. Ground DFU pin and RESET and release both to enter DFU mode.

The board had been previously programed with J-LINK and the Nordic SDK. I tried to reflash the Arduino firmware using a hex file from the Adafruit site however it was not clear which was the version for this board. This may not the correct version.

6

Are you able to upload sketches using the Arduino IDE normally? That would rule out a PlatformIO issue and it would be more of a bootloader issue.

Also maybe nRF52840 Express Stuck on Upgrading target on... · Issue #224 · adafruit/Adafruit_nRF52_Arduino · GitHub is relevant, there seems to be a double-reset mechanism.

7

Also, the bootloader seems to be linked in the Adafruit Products page.

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8

It’s working now. I used nrfjprog to reflash the Feather.

I had mistakenly downloaded the hex file rom the Adafruit github page but had incorrectly reflashed using the J-LINK programming software (not nrfjprog). This seemed to work but apparently did not fully load the firmware. Now that I reflashed using nrfjprog the board is fully restored and I can program it with Platformio.

Thanks for the help.

1 Like
9

@chrisgr99
Can you please share your platformio.ini? I am trying to set up the toolchain for the bluefruit as well.

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