Datasheet

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sudo dpkg --add-architecture i386

sudo apt-get update

sudo apt-get install libc6:i386

what should I do when Arduino failed to upload sketch to my Feather ?

If you get this error:

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 203, in _dfu_send_image

File "nordicsemi\dfu\dfu_transport_serial.py", line 155, in send_init_packet

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.

This is probably caused by the bootloader version mismatched on your feather and installed BSP. Due to the

difference in flash layout (more details) and Softdevice API (which is bundled with bootloader), sketch built with

selected bootloader can only upload to board having the same version. In short, you need to upgrade/burn

bootloader to match on your Feather, follow above Update The Bootloader guide

It only has to be done once to update your Feather