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Use nRF52840 to upload arduino hex to atmega328p

Damir

We would like to use the nRF52840 to upload compiled Arduino firmware in hex file to atmega328p over serial port.

The latest version of the Arduino firmware would be stored on a nRF52840 powered device. This device acts as a charger/reader for smaller devices with atmega328p that are connected to the hub for charging and data exchange. The hub would detect the firmware version on atmega328p and upload a new firmware if needed.

How to do such a firmware uploader on nRF52840? We would need some guidance how to implement this.

Best regards,

Damir

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    Hi,

    How to do such a firmware uploader on nRF52840? We would need some guidance how to implement this.

    We do not have any framework or example that does exactly this. We do have an example that shows how to do a DFU serial update on a Nordic MCU from a PC, but that isn't quite what you're asking for. This outdated blogpost offers some codebase on how to do nRF52-nRF52 serial updates, it should at least be a good starting point.

    regards
    Jared 

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