Trying to flash the firmware : operation not permitted

[essorrac]

Hi folks,

I'm trying to flash the crazyradio firmware after building it from the latest sources, but I'm experiencing a problem at the second step. I'm in the VM.

Bootloading is fine :

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bitcraze@bitcraze-vm:~/projects/crazyradio-firmware$ python usbtools/launchBootloader.py 
Launch bootloader ...
Bootloader started

The nordic bootloader device is detected :

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bitcraze@bitcraze-vm:~/projects/crazyradio-firmware$ lsusb
Bus 001 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse
Bus 001 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 011: ID 1915:0101 Nordic Semiconductor ASA 

The flashing operation yet fails :

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bitcraze@bitcraze-vm:~/projects/crazyradio-firmware$ python usbtools/nrfbootload.py flash firmware/bin/cradio.bin 
Traceback (most recent call last):
  File "usbtools/nrfbootload.py", line 69, in <module>
    if not bl.open():
  File "/home/bitcraze/projects/crazyradio-firmware/usbtools/NrfUsbBootloader.py", line 63, in open
    self.handle.claimInterface(0)
usb.USBError: could not claim interface 0: Operation not permitted

Any idea why I'm being stuck with that ?

Thanks !

[arnaud]

Hi,

This is a right problems that should be fixed by udev rules, if you use the version 0.4 of the VM it should work.

To fix it manually you can add the rules as documented in the wiki: http://wiki.bitcraze.se/projects:virtua ... crazyradio

Also if you want to do a quick test, running the command with sudo should work:

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bitcraze@bitcraze-vm:~/projects/crazyradio-firmware$ sudo python usbtools/nrfbootload.py flash firmware/bin/cradio.bin