MicroMod SAMD51 no com port; cannot upload CircuitPython uf2

MicroMod SAMD51 no com port; cannot upload CircuitPython uf2#235966

By akidd - Mon Sep 26, 2022 7:48 am

- Mon Sep 26, 2022 7:48 am #235966

Attempting to load CircuitPython onto MicroMod SAMD51 processor installed in an ATP carrier board. Know that carrier and USB cable are 'good' as they function correctly with other MicroMod cpus (RP2040, STM32, Teensy).

When I connect the ATP to the USB C - the board appears to be 'dead'. No COM port shows (Window 10) and the SAMD51's status led is 'off'. Have attempted combinations of the reset/boot buttons - however nothing appears to work; and processor board's status led remains 'off'.

Suggestions as to how I can get the SAMD51 into bootloader mode so that I can upload the CircuitPython uf2 file?

Many thanks,
Alex

Re: MicroMod SAMD51 no com port; cannot upload CircuitPython uf2#235977

By TS-Russell - Mon Sep 26, 2022 11:47 am

- Mon Sep 26, 2022 11:47 am #235977

You have to hit reset button 2x quickly to enter bootloader mode....try that and see if the COM ports change https://learn.sparkfun.com/tutorials/mi ... r--drivers

Re: MicroMod SAMD51 no com port; cannot upload CircuitPython uf2#235979

By akidd - Mon Sep 26, 2022 12:10 pm

- Mon Sep 26, 2022 12:10 pm #235979

Thanks - tried that multiple times. No joy.

Re: MicroMod SAMD51 no com port; cannot upload CircuitPython uf2#236001

By akidd - Tue Sep 27, 2022 6:47 am

- Tue Sep 27, 2022 6:47 am #236001

Any other suggestions?
I have attempted double press of reset button with varying 'delay' however none has resulted in the processor entering bootloader mode and a COM port appearing in my Windows device manager view.
Thank you.
Alex

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