Arduino Nano 33 BLE: flash program through USB

[MRivolta]

Hello everybody,

I'm trying to flash an example code (let's say the blinky one) from the SDK (15.3) onto the Arduino Nano 33 BLE board.

I know that is possible to flash FW using a JLink or a NRF DK.

The point is that using Arduino IDE, it is possbile to easily upload the code using USB port, so I was wondering if there is a method to do the same using Keil or command line.

From the board schematic, the USB port is directly linked to the NINA-B306 module containg the NRF chip

Thank you in advance for help

[Jørgen Holmefjord]

Hi,

The board probably comes flashed with the Arduino bootloader. This is not supported by our nRF5 SDK, but we provide our own serial bootloader with USB transport. If you flash the board with the USB bootloader using a J-Link/nRF5 DK first, you can perform DFU (application updated) using nrfutil command-line tool.

Best regards,
Jørgen