Which are the interface options for debugging and programming nRF52840?

[Vikas Bhatt]

Which are the interface options for debugging and programming nRF52840?

[Einar Thorsrud]

The nRF52840 can be programmed and debugged via Serial Wire Debug (SWD). That is the only option.

[Vikas Bhatt]

Can we use UART and USB Type C for debugging and programming nRF52840?

[Einar Thorsrud]

No, you can only use SWD.

[Vikas Bhatt]

Kindly look into this.

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[Vikas Bhatt]

Can we program nRF52840 with BLE throogh OTA, USB, SD Card using the SPI interface and UART?

[Einar Thorsrud]

You can use DFU over many different transports, that is just limited by what is supported by the bootloader and firmware running on the device. But DFU OTA is not the same as programming adn debugging. The devices ship empty, and the initial programming must be done via SWD.

[Vikas Bhatt]

Okay we have understand, after initial programming using SWD.

Then we can Firmware update through BLE through OTA, USB, SD Card using the SPI interface and UART?

[Einar Thorsrud]

We provide bootloaders and samples that support BLE over OTA (Bluetooth and some other protocols) and USB. There is nothing fundamentally preventing you from doing it via SD Card or SPI either, but you will have to add support for that yourself.

[Vikas Bhatt]

Thank you for your support.