Firmware upgrade of pytrack removes USB
I ordered 2 fipys and 2 pytracks, and I followed the instructions and started by upgrading the firmware of the pytrack.
However, once I upgraded the firmware, the /dev/ttyACM0 device vanished, and therefore the fipy is unusable through the updated pytrack. The other (not updated) pytrack still works and shows the /dev/ttyACM0 device once connected, and the REPL loop works on that unit, but the other one obviously doesn't.
The firmware was updated on linux with dfu-util which say the process was successful.
OS: Ubuntu 16.04
Desktop environment: Gnome 3
Does anybody have any suggestions to fix the issue?
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Yes, I did follow these instructions.
I did just that, and the usb device does not show. I also tried to repeat the dfu-util command with no success.
I don't know if the hardware or is faulty (did not
lsusbbefore updating the firmware to ensure that the hardware work). However,
dfu-utildoes not work when the pytrack isn't connected, but it works when it is connected, as you would expect. I buggles my mind, how you can flash something that
Do you have any suggestions?
catalin last edited by
hi @Zinoex, just to understand what you did.
So, following these instructions https://docs.pycom.io/chapter/pytrackpysense/installation/firmware.html, you successfully
I suspect, Pytrack was not successful updated, and remained into bootloader mode. Could you try
lsusbcommand (or any to show the USB devices connected), so, to check if a device comes up when you connect the faulty Pytrack?
Use on the Pytrack (no Fipy inserted), and maybe try to repeat